No.
: SE-20020-3
Issued on : Aug. 31 2023

Instruction Manual
Pearl Rotary JointAC Series
This instruction manual applies to products with type designations
that begin with AC.

This instruction manual describes important precautions for preventing
accidents and how to handle the product. To ensure safe use, be sure toread this manual and fully understand its contents before using this product.
Store this manual carefully so that it can be referred to at any time.

Pearl is a trade name of Showa Giken Industrial Co., Ltd.

1

Table of Contents
1. How to Read Nameplate (Nameplate Information) …………………………………………………
P3
2. For Safety ……………………………………………………………………………………………
P32‐1）Symbols ………………………………………………………………………………………….
P32‐2）For safe use ……………………………………………………………………………………
P3
3. Product Overview ……………………………………………………………………………………
P43‐1）Application ………………………………………………………………………………………
P43‐2）Information indicated by model names …………………………………………………………
P43‐3）Service conditions ………………………………………………………………………………
P53‐4）Precautions for use ……………………………………………………………………………
P53‐5）Product structures and materials ………………………………………………………………
P63‐6）Product dimensions ……………………………………………………………………………
P63‐7）Product masses …………………………………………………………………………………
P63‐8）Accessories ………………………………………………………………………………………
P6
4. Transport and Storage ………………………………………………………………………………
P74‐1）Transport ………………………………………………………………………………………P74‐2）Storage ……………………………………………………………………………………………
P7
5. Installation to Machinery ……………………………………………………………………………
P85‐1) Installation procedure ……………………………………………………………………………
P85‐2）Internal pipe installation (for duplex only) ………………………………………………………
P85‐3）Siphon pipe, Siphon elbow (for duplex, stationary IP only) ……………………………… P10
5‐4）Installing to a roll …………………………………………………………………………………
P125‐5）Pipe laying …………………………………………………………………………………………
P145‐6）Measures for preventing rotation ………………………………………………………………
P15
6. Removal from Machinery ……………………………………………………………………………
P16
7. Operation ……………………………………………………………………………………………
P177‐1）Operation …………………………………………………………………………………………
P177‐2）Operation shutdown ………………………………………………………………………………
P17
8. Inspection and Maintenance …………………………………………………………………………
P188‐1）Daily inspection …………………………………………………………………………………
P188‐2）Greasing …………………………………………………………………………………………
P188‐3）Repair and replacement of consumables ………………………………………………………
P19
9. Troubleshooting ………………………………………………………………………………………
P20
10. Disposal ………………………………………………………………………………………………
P21
11. Product Warranty ……………………………………………………………………………………
P21
A. Appendix - How to Repair or Replace Consumables ………………………………………………
P23
A‐1）For simplex, thread connection (ACL, 10A～80A) …………………………………………….
P24
A‐2）For simplex, flange connection (ACLF, 10A～65A) ……………………………………………
P26
A‐3）For simplex, flange connection (ACLF, 80A) ……………………………………………………
P28
A‐4）For duplex, stationary IP, thread connection (AC, 15A～80A) ………………………………
P30
A‐5) For duplex, stationary IP, flange connection (ACF, 15A～65A) ………………………………
P32
A‐6) For duplex, stationary IP, flange connection (ACF, 80A) ……………………………………
P34
A‐7) For duplex, rotational IP, thread connection (ACW-1/ACW-2, 25A～40A) …………………
P36
A‐8) For duplex, rotational IP, thread connection (ACW-1/ACW-2, 50A～80A) …………………
P38
A‐9) For duplex, rotational IP, flange connection (ACFW-1/ACFW-2, 25A～40A) ………………
P40
A‐10) For duplex, rotational IP, flange connection (ACFW-1/ACFW-2, 50A～65A) ………………
P42
A‐11) For duplex, rotational IP, flange connection (ACFW-1/ACFW-2, 80A) …………………….
P44

2

1. How to Read Nameplate (Nameplate Information)
Ｍｏｄｅｌ Ｎａｍｅ

Ｍａｎｕｆａｃｔｕｒｉｎｇ Ｎｏ．

Ｍａｎｕｆａｃｔｕｒｉｎｇ Ｄａｔｅ

The nameplate attached to the product indicates the model name, manufacturing
number, and manufacturing date.

2. For Safety2‐1) Symbols
The symbols used in this instruction manual are described below.

WARNING

Indicates that failure to follow the warning message may cause bodily
accidents that may result in serious or even fatal injury.

CAUTION

Indicates that failure to follow the caution message may cause
personal injury or damage to peripheral equipment.

Instruction

Indicates that failure to follow the instruction message may cause
reduced product lifetime, product damage, or early leakage.
Indicates “prohibited actions”.

2‐2) For safe use
1. Transport, storage, installation, piping, operation, or maintenance of this product should be
carried out by an experienced expert.
2. Be sure to observe all warnings, cautions, and instructions described in each section.
3.
Never disassemble or modify this product because doing so is dangerous. We shall assume
no responsibility for any malfunctions, accidents, or the results thereof involving areassembled product after disassembly or a modified product. Also, a reassembled product after
disassembly or a modified product shall not be covered by the product warranty even if thewarranty period is still valid. This also applies to repairs done by yourself.
4. Confirm specifications (dimensions, materials, masses) indicated on individual product drawings
before staring work. Contact our sales representative for requests for product drawings.
5. Always use the latest instruction manual. You can download the latest version from our website.

33. Product Overview
3‐1) Application
A rotary joint is used for supplying fluid to or draining it from a machine rotating part called aroll, drum or cylinder, via fixed pipes.

3‐2) Information indicated by model names
Information indicated by AC series model names is described below.
The product list is shown in our catalog or on our website.

Note 1) “␣” indicates a space. A model name is indicated without spaces.
2) If option (part change/addition) code G is selected, W in a type indication is omitted.
Thus, the type indication is ACG-1, ACG-2, ACFG-1, or ACFG-2.
3) If two or more option (part change/addition) codes are selected, they are indicated inalphabetical order.
4) The selection of two or more options resulting in a long model name is indicated as type
“OC****” to denote a customized product for administrative reasons.
(The asterisks (****) indicate a four-digit number allocated to each model.)If you have any questions, contact our sales representative.

43‐3) Service conditions
Service Conditions of AC Series
Series

Fluid

Size

AC

Saturated Steam / Thermal Oil /Water / Oil / Air

10A～40A
50A～80A

Pressure
(MPa)
1.47

Max.
Rotation speed Temperature(℃)(min -1)
300
180
150

Note 1) The maximum service temperature of 180℃ is a standard specification.
2) If thermal oil is used at 180℃ or higher, select option (part change/addition) code X.
3) If steam is used at 180℃ or higher (1.0 MPa or higher), use a product with option (partchange/addition) code Y.

3‐4) Precautions for use
Use this product by following the warnings and instructions described below.

WARNING

1. If flammable fluids leak and ignite, bodily accidents including serious oreven fatal injury, or accidents that damage peripheral equipment may
occur due to explosion or fire. Depending on the type of fluid, thisproduct may subject to restrictions due to national laws or local
regulations.
2.
This product cannot be used for food-processing machinery.
Doing so may lead to adverse health effects.

Instruction

1. Perform operation within the service conditions.
2.
Do not operate under conditions where both pressure and rotation speed
are close to the max. values. Doing so significantly reduces productlifetime.
3.
This product cannot be used in temperature conditions where theproduct ambient temperature exceeds the upper limit of the service
conditions.
4.
The product cannot be used for liquid containing solid particles (slurry)or pulverulent body. The product cannot be used for fluid that causes
corrosion on it.
5.
This product cannot be used for operation with no rotation, intermittent
rotation, or low-rotation speed (a few rotations per minute).
Otherwise, fluid leakage may occur.

53‐5) Product structures and materials
Materials of Main Components(Standard Specification)

AC

Part Name
Rotor
Casing
Head
Seal Ring
SleeveBellows
Protect
Tube

Material
Carbon SteelCast Iron
Cast Iron
CarbonBrass
Phosphor Bronze
Brass

Heat-resistant paint is applied toexternal parts.

Note ) Component materials are indicated on product drawings.
Contact our sales representative for requests for product drawings.

3‐6) Product dimensions
Product dimensions are shown on product drawings, in our catalog, or on our website.

3‐7) Product masses(kg)

Masses of AC Series
Type
ACL
ACLF
AC
ACF
ACW-1, ACW-2
ACFW-1, ACFW-2

10A
2.2
2.4
-

15A
2.2
2.4
2.3
2.5
-

20A
3.2
3.4
3.8
4.0
-

25A
5.2
5.6
6.0
6.4
6.5
6.9

32A
9.0
9.6
9.3
11.3
-

40A
9.2
9.8
9.5
10.1
11.5
12.1

50A
12.0
13.5
12.5
14.0
14.0
15.5

65A
19.0
20.5
22.0
23.5
25.0
26.5

80A
25.0
27.0
28.0
30.0
32.0
34.0

3‐8) Accessories
1. A product installed with a flange is supplied with a gasket (copper jacket) and four sets of a studbolt (SS400), a hex. nut (SS400), and a spring washer (SWRH) for up to 65A or six sets thereof for
80A.

Type

Size

ACLF
ACF
ACFW-1ACFW-2

10A
15A
20A
25A
32A
40A
50A
65A
80A

GasketOuter Inner ThickDia. Dia.
ness

Stud Bolt
K

L

a

b

36 11 18

Ｌ

(mm)

Accessories（Flange Connection）
Hex. Nutｂ

Ｋａ

SpringWasher

24

16

3.2

M8

M8 type1 M8

No.2

29
34

20
26

3.2
3.2

M10 45 15 20 M10 type1 M10 No.2

49

37

3.2

M10 48 15 20 M10 type1 M10 No.2

64
79
89

50
62
74

3.2
3.2
3.2

M12 58 18 27 M12 type1 M12 No.2

Ｇａｓｋｅｔ6

2. A duplex, stationary IP, flange connection product (ACF) is supplied with a lock nut (right-handthread, SS400) used for securing the internal pipe.
3. A duplex, rotational IP product (ACW-1, ACW-2, ACFW-1, or ACFW-2) is supplied with a seal kit
for the internal pipe.
Accessories （Duplex, Rotational IP）
Type

ACW-1
ACW-2
ACFW-1ACFW-2

Rotating Seal Kit
Internal Pipe
Size
Rotor Ring Spring Washer
Nut
Washer Split Pin
8A
36×25
34×40
36×4
AN02
AW02
10A
15A
47×34
45×45
50×5
AN05
AW05
20A
25A
56×35
55×45
56×5 48×10
3×20
32A
64×45 62.5×50 64×5
AN08
AW08
40A
71×45
71×50
71×5
AN09
AW09
50A
82×48
82×55
82×6
AN11
AW11
-

(mm)
O-Ring
AS-114
AS-214
AS-219AS-326
AS-328AS-331

Note ) Dimensions of the rotor ring, spring, washer, and nut (for 25A) are the “maximum outer diameter x length(thickness)”.

4. Transport and Storage4‐1) Transport
Transport this product by following the cautions and instructions described below.

CAUTIONTo transport a product that weighs over 25 kg, use appropriate lifting
equipment to prevent injuries.

Note ) Even if the product weight is less than 25 kg, it increases to 25 kg or more when an internal pipe ora journal flange is installed to the product.

Instruction

1. Do not subject the product to undue impact while it is being transported.
Falling down or impact causes product damage (grease nipple, seal ring, etc.)
or early leakage. If the product fell down or was damaged, contact us formaintenance.
2. When transporting a product with an internal pipe, do not secure the productso that the load is directly applied to the internal pipe. Doing so may bend theinternal pipe, hindering installation to a roll. Moreover, abnormal noise or earlyleakage may result after installation.

4‐2) Storage
An improper storage method causes product damage or early leakage.
Store this product by following the instructions described below.

Instruction

1. Wrap the product before storing it to prevent the entry of foreign objects.
2. Store this product in a dry environment at 10℃ to 40℃.
3. The storage period should be within two years. If the storage period exceeds
two years, contact us for maintenance.
4. If the product is stored after use, clean and then store it under the above
conditions.

75. Installation to Machinery
Product adjustment is not required before installation.

5‐1) Installation procedure
Install the internal pipe and product to a roll according to the following procedure.
Flow
Passage

Internal
Pipe

Type

Simplex

-

ACL
ACLF

-

Install the product to a roll.

-

Screw the internal pipe into
the product.
Screw the internal pipe into
the product and secure itwith the lock nut.

Install the product to a roll.

-

Rotational
ACW-1 Install the internal pipe to a
Without key ACFW-1 roll.

Insert the internal pipe into
the product, and install the
product to a roll.

Install a seal kit forinternal pipe.

AC
Stationary
ACF
Duplex

Installation Procedure

Rotational
With key

Insert the internal pipe into
ACW-2
the product, and install a seal Install the product to a roll.
ACFW-2
kit for internal pipe.

-

Note 1) The internal pipe of ACW-1 or ACFW-1 is installed to a roll with screws, etc.
2) The installation procedure described above is applicable to general internal pipes.
The order of the procedure varies depending on the internal pipe shape.

5‐2) Internal pipe installation (for duplex only)
Install an internal pipe to the product according to the following instructions.

Instruction

1. When inserting an internal pipe into the product rotor, be careful so that thepipe does not hit inner parts. Failure to do so could cause inner part damage,resulting in fluid leakage.
2. When installing an internal pipe to the product, be careful not to bend the pipe.
If it is bent, product installation to a roll may be hindered. Also, vibration orabnormal noise after installation, or early leakage may result.

● Duplex, stationary IP, thread connection （AC）
Screw the internal pipe taper thread into the head. For standard specification products, the thread
directions of the rotor and internal pipe are the same. Depending on the customer’s request, thethread directions of the rotor and internal pipe may be different from each other. Check the thread
directions on the product drawings, etc. before installation.
● Duplex, stationary IP, flange connection （ACF）
Screw G thread (right-hand thread) of the internal pipe into the head, and then secure it with asupplied lock nut.

8Ｒ ｔｈｒｅａｄＩｎｔｅｒｎａｌ Ｐｉｐｅ
Ｈｅａｄ

Ｇ ｔｈｒｅａｄ
Ｌｏｃｋ Ｎｕｔ

AC

Ｉｎｔｅｒｎａｌ Ｐｉｐｅ
Ｈｅａｄ

ACF

●Duplex, rotational IP (ACW-1, ACW-2, ACFW-1, ACFW-2)
After inserting the internal pipe into the product, install the supplied seal kit for internal pipe.
1) Check that the O-ring is installed in the inner perimeter of the rotor ring. Then apply grease to
the O-ring inner perimeter.
2) Put the rotor ring into the internal pipe while inserting the round pin of the rotor ring into theinternal pipe slit. At this point, be careful so that the O-ring is not damaged by thread createdon the internal pipe.
【 Internal pipe size : 8A 10A 15A 20A 32A 40A 50A 】
3) Install the spring, washer and washer into the internal pipe, and secure both with the nut.
Screw the nut until the internal pipe is visible (protrudes by about 3 mm).
4) Bend the tab of washer for preventing looseness.
【 Internal pipe size : 25A 】
3) Install the spring and washer into the internal pipe, and secure both with the nut.
Screw the nut until the internal pipe is visible (protrudes by about 3 mm).
4) Insert the split pin into the hole on the nut outer perimeter, and then bend it in the internal pipe
for preventing looseness.
(Attention) The rotor of ACW-2 or ACFW-2 has a keyway. When installing the internal pipe to the
product, align the internal pipe key with the rotor keyway.
ＳｐｒｉｎｇＷａｓｈｅｒＷａｓｈｅｒＨｅａｄＩｎｔｅｒｎａｌ Ｐｉｐｅ

３

ＳｐｒｉｎｇＷａｓｈｅｒＳｐｒｉｔ Ｐｉｎ

Ｈｅａｄ

Ｉｎｔｅｒｎａｌ Ｐｉｐｅ

３

Ｎｕｔ

Ｎｕｔ
Ｏ－ｒｉｎｇＲｏｔｏｒ Ｒｉｎｇ

Ｏ－ｒｉｎｇＲｏｔｏｒ Ｒｉｎｇ

Ｉｎｔｅｒｎａｌ ｐｉｐｅ ｓｉｚｅ
８Ａ－５０Ａ（Ｅｘｃｅｐｔ ｆｏｒ ２５Ａ）

Ｉｎｔｅｒｎａｌ ｐｉｐｅ ｓｉｚｅ
２５Ａ

ACW-1, ACW-2, ACFW-1, ACFW-2
95‐3) Siphon pipe, Siphon elbow (for duplex, stationary IP only)* If the siphon pipe or siphon elbow is not included in the package or has already been installed
before shipment, this step is not required.

1) Siphon pipe

Instruction

Check if the length and thread direction of the siphon pipe is appropriate inadvance with drawings, etc.
1. When the siphon pipe is used in contact with the roll, contact noise may begenerated and the roll may be damaged, such as contact scratches.
2. If the siphon pipe is short, it may not be as effective as expected in collecting
drain in the roll.
3. If the thread direction is inappropriate, the siphon pipe may fall out of theinternal pipe and into the roll due to loosening of the screw.

Internal Pipe

Siphon Pipe

Roll
● Siphon pipe installation （AC, ACF）
Attach the siphon pipe to the taper thread section of the internal pipe. The thread direction of
the internal pipe is "left-hand thread when the direction of rotation of the roll is clockwise"and "right-hand thread when it is counterclockwise" as viewed from the side from which the
product is installed.

102) Siphon Elbow

CAUTION

Check in advance with a drawing or the like whether the length of thehanging pipe to be attached to the siphon elbow is appropriate.
1. If the hanging pipe is inappropriately long, the hanging pipe may contact
the roll, resulting in abnormal noise, product damage, injury to workers,
or damage to surrounding equipment.
2. If the hanging pipe is inappropriately short, it may not be as effective as
expected in collecting drain in the roll.
Siphon Elbow
Casing Section
Lock Nut

Hinge Part
Ball Section

Internal Pipe

Hanging Pipe

Downward facing

Roll● Siphon elbow installation （AC, ACF）
The hanging pipe should be installed so that it faces downward.
1. Attach the hanging pipe to the taper thread section of the siphon elbow while holding theball section of the siphon elbow.
2. Screw the lock nut onto the G thread section of the internal pipe. Next, screw the siphon
elbow onto the internal pipe and fix it with the lock nut. Holding the ball section of thesiphon elbow or hanging pipe when tightening the lock nut could damage the hinge part.
Be sure to hold the casing section when tightening the lock nut.

115‐4) Installing to a roll
Install the product by following the warnings, cautions, and instructions described below.

WARNINGBe sure to install the product so that an inspection hole faces downward.
Also, do not block the hole. This hole is used for detecting leakage at an
early stage. If this hole is directed toward other directions or is blocked,
leakage cannot be detected at an early stage. Moreover, leaked fluid may
accumulate in a casing and ball bearings may be damaged, causing serious
bodily accidents due to resulting rotation failure.

CAUTION

In order to prevent injuries, take the product weight into consideration
before installing the product. Use equipment such as a crane as necessary.
This work should be performed by two or more persons.

Instruction

1. Remove any foreign objects in such flow passages as a pipe or a roll before
product installation. If the fluid contains foreign objects, install a strainer at
the flow passages. Foreign objects cause early leakage.
2. If the product is installed with its center misaligned or tilted, vibration orabnormal noise may result. Moreover, the product or machine equipment may
be damaged due to vibration.
3. When tightening screws or nuts, properly torque-tighten them according to thescrew type or size.
4. To prevent uneven tightening, evenly tighten flange screws in a cross pattern.
5. Perform retightening after the start of use.
6.
To prevent internal pipe damage, do not hook a webbing sling to aninternal pipe. Hook a webbing sling to a casing.

●Installation: taper thread
1. Wrap seal tape around the taper thread of the rotor.
2. Use the shank on the rotor to screw the product into a roll.
The 80A rotor does not have a shank for engaging a spanner. Use a pipe wrench for installation.
●Installation: flange
1. Install the supplied stud bolts to a roll.
2. Install the supplied gasket to a roll socket.
3. Insert the rotor spigot into the roll socket while checking that the stud bolts go through the rotor
flange holes.
4. Set the supplied spring washers on the stud bolts, and then secure the product with the suppliednuts.
The flange of 80A is detachable. Install it to the rotor together with a split ring in advance.

12

●Installation: internal pipe with siphon elbow (AC, ACF)
1. Confirm that the hanging pipe drops downward approximately 60 degrees under its own
weight from the hinge part of the siphon elbow.
Siphon Elbow

Hinge Part

Internal Pipe
Hanging Pipe

Lowering under its own weight

2. Rotate the product so that the hanging pipe and internal pipe are aligned and insert it into
the roll.
Lowering under
its own weight

Rotation

Insert3. Rotate the product during insertion to confirm that the hanging pipe has lowered under its
own weight, and then insert the product to the end.
Correct installation
Rotation

Lowering under
its own weight

CAUTION

If step 3 is not performed properly, the hanging pipe may contact the rolldepending on the depth and inner diameter of the roll, resulting in damage
to the product, injury to workers, or damage to the surrounding equipment.
Wrong installation

Contacting the roll135‐5) Pipe laying
Perform pipe laying work by following the warnings and instructions described below.

Use a flexible metal tube suitable for characteristics of the fluid used andoperating conditions (pressure, temperature). If an unsuitable flexible metal
tube is used, it may be damaged, causing injury to workers or damage toperipheral equipment.

WARNING

Observe the following instructions to prevent the generation of force applied tothe sides of the product, possibly causing product damage or early leakage.
1. Use a flexible metal tube for connection to the product.

Instruction

2.

Steel pipes should not be used for pipe laying.

3.

Avoid such pipe laying where heavy items such as valves are suspended
from the product.

4. When installing a flexible metal tube, slightly bend it in the rotation direction ofroll. (See the bottom left figure.)
5. Carry out pipe laying work so that excessive “tension”, “compression”,“torsion”, or “bending” is not applied to a flexible metal tube. In particular,“torsion” may significantly reduce the lifetime of the flexible metal tube.
(See the bottom right figure.)
6. Use the following table as a guideline for the flexible metal tube length.

Rotation Direction of Roll

Flexible
Metal Tube
Slightly bend the tube
in the rotation direction.

TensionCompression

OK

TorsionBending

Unacceptable(mm)

Flexible Metal Tube Length (Guideline)
Size

10A～20A

25A

32A/40A

50A

Length300～400

400～500

600～800

900～1000

65A

80A

1200～1300 1500～1600

145‐6) Measures for preventing rotation
A measure for preventing casing rotation is required. Take a measure according to the following
instructions.

Instruction

Do not secure the rotation stopper to an anti-rotation plate or a round bar.
Doing so can apply a load to the product, causing product damage or earlyleakage.

Example of a measure using a round bar（The periphery of a round bar that comes in contact with the rotation stopper must be smooth.）

Ｒｏｔａｔｉｏｎ
ＳｔｏｐｐｅｒＲｏｕｎｄ Ｂａｒ

Ｒｏｔａｔｉｏｎ Ｄｉｒｅｃｔｉｏｎｏｆ Ｒｏｌｌ

Ｃｌｅａｒａｎｃｅ

15

6. Removal from Machinery
Remove the product by following the warnings, cautions, and instructions described
below in reverse order of the installation.

WARNING

In order to prevent bodily accidents due to residual fluid in the product orpipes, remove the product after fluid has been completely drained from theproduct or pipes and temperature has dropped to room temperature.

CAUTIION

In order to prevent injuries, take the product weight into consideration
before removing the product. Use equipment such as a crane as necessary.
This work should be performed by two or more persons.

Instruction

To prevent internal pipe damage, do not hook a webbing sling to an internal
pipe. Hook a webbing sling to a casing.

Flow
Passage

Internal
Pipe

Type

Simplex

-

ACL
ACLF

Removal procedure-

Remove the productfrom a roll.

-Remove the productfrom a roll.

Remove the internal pipe from theproduct.
Remove the lock nut, and thenremove the internal pipe from theproduct.

AC
Stationary

ACF

Duplex

Rotational
ACW-1 Remove the seal kit Remove the productWithout key ACFW-1 for internal pipe.
from a roll.

Remove the internal pipe from a roll.

Rotational
With key

Remove the seal kit for internal
pipe, and then remove the internal
pipe from the product.

ACW-2
ACFW-2-

Remove the productfrom a roll.

Note ) The removal procedure described above is applicable to general internal pipes.

16

7. Operation
7‐1) Operation
Perform operation by following the warnings, cautions, and instructions described below.

WARNING

Immediately stop operation if fluid leakage is detected during operation.
If operation is continued with fluid leakage not being repaired, serious
accidents including bodily accidents may result.

During rotation or high-temperature/pressure fluid flow, keep wellaway from the product to prevent injuries or burns. Do not directly
touch rotating or hot parts during operation.

CAUTION

Instruction

1. When starting operation, check for abnormal rotation (center runout, abnormal
noise, etc.) or fluid leakage from the product while gradually increasing fluidpressure and roll rotational velocity.
2. If operation is continued under a center runout condition, product damage or
fluid leakage may result.
3. The occurrence of surging or water hammer can cause product damage or fluid
leakage. Avoid such occurrence.
4.
Do not perform dry operation (operation without fluid flow) for a long time.
The product lifetime becomes shortened.
5. If the fluid is air, add oil mist to the air.

7‐2) Operation shutdown
Follow the following instructions during operation shutdown.

Instruction

1. If the product is left as is for a long time during operation shutdown, rust may
occur, causing fluid leakage after operation restart. Clean flow passages forthe product, pipes, and roll before restarting operation.
2. If water is used as the fluid, take a measure to prevent water from freezing in
the product. Freezing may cause product damage, resulting in fluid leakage after
operation restart.
3.
Do not put your hand on or ride on the product during equipment
maintenance. Doing so may cause product damage or fluid leakage after
operation restart.

17

8. Inspection and Maintenance8‐1) Daily inspection
Perform inspection according to the following instructions.

Instruction

1. Visually check pipe connections, product connections, and the product for fluid
leakage. If leakage is detected, repair the product or replace it with a new one.
2. When replacing, use the same type of product with the same size.

8‐2) Greasing
Periodic greasing (refilling) of ball bearings is required.
Carry out greasing according to the following instructions.

Instruction

1. Remove the grease outlet plug and fill the grease through the grease nipple(grease inlet). Continue to fill until new grease comes out from the grease
outlet.
2. If the grease is filled without removing the plug, parts inside the product may
be damaged by the grease pressure, causing fluid leakage.
3.
Use the same grease as the one filled in the product before shipment.
Do not use grease mixed with other ones. Doing so may reduce thelubricating effect.
4. Carry out greasing with reference to the frequency and amount (guideline)
shown in the following table. Failure to carry out greasing can reduce thelubricating performance of the grease, causing the reduction in the ball bearing
lifetime.

< Grease filled in the product before shipment >1. Daphne Eponex SR2 (Idemitsu Kosan) is filled in standard specification products.
2. Grease different from the standard specification is filled if a model name includes an option(grease) code. Check the grease brand before greasing.
Greasing Frequency(Guideline)
Fuid Temperature
Greasing（℃）
Frequency
0～130
Every three months
130～150
Monthly
150～180
WeeklyGrease Amount（Guideline）
Size
10A
15A
20A
25A
32A
40A
50A
65A
80A

First Time
20
20
30
45
65
65
70
175
175

(cm3)
Refill
10～12
10～12
15～18
23～27
33～39
33～39
35～42
88～10588～105188‐3) Repair and replacement of consumables
The ball bearings and the seal face of the seal ring become worn over the course of operation time.
O-rings also deteriorate. Moreover, if the internal pipe rotates in the product, bearings that support
the pipe also become worn. Then such malfunctions as fluid leakage may occur. However, the productcan be reused by repairing or replacing worn or deteriorated parts.
Contact us for repair or parts replacement. We carry it out according to our repair program.
Depending on the products, expenses for purchasing new products may be lower than repair expenses.
Consult with us when requesting repair or replacement.
< When carrying out repair or replacement of consumables by yourself >・ Repair or replacement should be carried out by an experienced expert.
・ Perform work according to “A. Appendix - How to Repair or Replace Consumables".
・ Use our genuine parts as replacement parts.
Contact our sales representative to request genuine parts.

・ Properly dispose of waste resulting from work according to national laws or local government
regulations or ordinances.

(Attention)
If you carry out repair or replacement, we shall assume no responsibility for any productmalfunctions, equipment malfunctions or accidents resulting from such product or the results
thereof. Also, the product shall not be covered by the product warranty even if the warranty
period is still valid.

19

9. TroubleshootingThis section describes the possible causes of and countermeasures against malfunctions.
If a problem persists, contact our sales representative for assistance.
Malfunctions

Fluid is leaking from theinspection hole.

CausesCountermeasures

A load is applied to the product due to an improper
method of pipe laying.

Review the pipe laying method.

The seal ring is damaged.
The seal ring lifetime has been reached.
The rotor seal face is damaged.
The seal face of the bellows ASSY is damaged.
The bellows have cracks.

Contact us for repair.

The fluid contains foreign objects.

Clean the inside of the product, pipes, androll. Install a strainer.

A load is applied to the product due to impropercountermeasures for preventing rotation.

Review the countermeasure forpreventing rotation.

Operation is performed without rotation, or operationoccasionally ceases during the operation cycle.

Consult with us.

Operation is performed at low-rotation speed (a few
rotations per minute).

Consult with us.

Improper product selection.

Consult with us.

The rotation axes of a roll and the product are
misaligned with each other.

-<Flange connection type><Flange connection type>The shaft end socket of a roll is offset from the rollrotation axis.

Repair the spigot /socket.

<Thread connection type><Thread connection type>The shaft end screw hole of a roll is offset from the rollRepair the screw hole.
rotation axis.
The product has center
runout. (It is vibrating.)

Noise occurs.

The rotation axes of a roll and the product are inclined
from each other.

-<Flange connection type><Flange connection type>The shaft end socket of a roll is offset from the rollrotation axis.

Repair the installation face on the roll side
to which the product is installed.

Uneven tightening of fixing screws.

Evenly tighten the fixing screws.

<Thread connection type><Thread connection type>

The center lines of screw holes for fixing the productare inclined from the roll rotation axis.

Repair the screw hole.

The product is screwed in diagonally.
The internal pipe bends and comes in contact with theinner perimeter of the product rotor or that of the roll
shaft.
The internal pipe bent by its weight comes in contact
with the inner perimeter of the product rotor or that of
the roll shaft.
A load is applied to the product due to an improper
method of pipe laying.

Reinstall the product.

Ball bearings are damaged.

Contact us for repair.

The rotor does not rotate. A ball bearing does not rotate.

Straighten the bent internal pipe.

Consult with us.
Review the pipe laying method.

Contact us for repair.

2010. Disposal
When disposing of packaging materials or products, properly dispose of them according tonational laws or local government regulations or ordinances.

11. Product Warranty
If a malfunction occurs during the warranty period, contact us or the distributor and send the
product to us. Be sure to carefully pack the product for protection before sending it.
After receiving the product, we will confirm the malfunction. If the malfunction was clearly causedby the materials of product components or the manufacturing method, we will repair the productin question or replace it with a new one free of charge.

Product Warranty Provision
1. Warranty period<New products>
One (1) year and six (6) months after shipment (from the manufacturing date) or one (1) year
after installation, whichever comes first.
<Repaired products>
Six (6) months after shipment (from the manufacturing date).
2. We charge a fee for repairs in any of the following cases.
①Failure after the warranty period has expired②Failure caused by use of the product deviating from the service conditions③Failure caused by misuse(improper storage, installation, pipe laying, operation or maintenance, etc.)④Failure caused by fluid contaminants or foreign objects in the fluid⑤Failure caused by relocation, transport, or falling of the product after delivery⑥Failure caused by disassembly, repair, or modification done by personnel other than our service
personnel⑦Failure of the product attributed to using materials or according to standards specified by thecustomer⑧Failure of the product attributed to using materials provided by the customer⑨Failure caused due to unavoidable acts of nature such as fires or other natural disasters
3. Scope of responsibility
Our responsibility shall be limited to repairs, replacements, or transport expenses covered by thisproduct warranty provision. Expenses or damages caused by said failures above shall not becovered.
4. Applicable regions
This product warranty provision shall be applicable to products installed in Japan.
Contact our sales representative if you install and use our products outside Japan.
5. Another agreement
If another product warranty agreement is made separately with us and clearly states that said
agreement shall have priority over this product warranty provision, this provision shall not beapplicable.
6. This product warranty provision shall not restrict the customer's legal rights.

21

URL https://www.sgk-p.co.jp
Export Department

Phone : +81-3-3598-1400 Fax. : +81-3-3598-2700
E-mail : sgk-tk@sgk-p.co.jp
Headquarters
7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan
Phone : +81-48-728-9460 Fax. : +81-48-728-9461
Tokyo Sales Office
2-64-11, Akabane, Kita-ku, Tokyo, 115-0045 Japan
Phone : +81-3-3598-1400 Fax. : +81-3-3598-2700
Osaka Sales Office
2-9-7, Toyosaki, Kita-ku, Osaka, 531-0072 Japan
Phone : +81-6-6371-8341 Fax. +81-6-6371-6283
Nagoya Sales Office 41-1, Higashi-Ozone-cho, Higashi-ku, Nagoya, 461-0022 Japan
Phone : +81-52-938-8825 Fax. : +81-52-938-6423

22

A. Appendix - How to Repair or Replace Consumables

23A‐1）For simplex, thread connection （ACL, 10A～80A）
An explanation is given below with reference to ACL 25A (figure shown below).
Although there are size differences indicated below with asterisks (*), the same workflow isapplied.
* 10A, 15A, and 20A do not have protect tube ⑬.
* Oil seals ⑥ on the bellows side of 50A, 65A, and 80A are O-rings.
* The length and number of cap screws ⑭ on the rotor side are different from those on thehead side.
１４

３ １３ １２ １１

５ １０ ２

８ １５ ７９４

６１Ｉｎｓｐｅｃｔｉｏｎ ＨｏｌｅＧｒｅａｓｅ Ｏｕｔｌｅｔ

１６①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Oil Seal ⑦Ball Bearing ⑧Spacer⑨Retaining Ring ⑩Sleeve ⑪Bellows ASSY ⑫Gasket ⑬Protect Tube ⑭Cap Screw⑮Grease Nipple ⑯Square Head Plug

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑪.
1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ⑮ and square head plug ⑯.
3) Remove cap screws ⑭ and remove head ③ from casing ②.
4) Pull out gasket ⑫, bellows ASSY ⑪, and seal ring ⑤ from casing ②.
5) Remove cap screws ⑭ on the cover ④ side, and then remove cover ④ from casing ②.
6) Pull out the assembly consisting of rotor ①, ball bearings ⑦, spacer ⑧, and retaining ring ⑨(hereinafter called the rotor assembly) from casing ②.
7) Remove retaining ring ⑨ from rotor ①, and then remove ball bearings ⑦ and spacer ⑧.
8) Remove oil seals ⑥ from casing ② and cover ④.

SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 24
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑪.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, and bellows ASSY ⑪ may be reused by lapping their seal faces in caseof minor damage.
2) Remove sleeve ⑩ before lapping the seal face of rotor ①. As sleeve ⑩ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑩ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seals ⑥ and gasket ⑫ with new ones regardless of their conditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install oil seals ⑥ to casing ② and cover ④.
2) Insert ball bearing ⑦, spacer ⑧, and ball bearing ⑦ to rotor ① in order, and then installretaining rings ⑨.
3) Install the rotor assembly assembled in step 2) to casing ②.
4) Install cover ④ to casing ②, and evenly tighten cap screws ⑭ in a cross pattern to secure
cover ④.
5) Install seal ring ⑤, bellows ASSY ⑪, and gasket ⑫ to casing ②.
6) Install head ③ to casing ②, and evenly tighten cap screws ⑭ in a cross pattern to securehead ③.
7) Check that rotor ① smoothly rotates.
8) Install grease nipple ⑮ and fill the grease through it. Continue to fill until new grease comes out
from the grease outlet. After greasing, attach square head plug ⑯.

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)25A‐2）For simplex, flange connection （ACLF, 10A～65A）
An explanation is given below with reference to ACLF 25A (figure shown below).
Although there are size differences indicated below with asterisks (*), the same workflow isapplied.
* 10A, 15A, and 20A do not have protect tube ⑭.
* Oil seals ⑦ on the bellows side of 50A and 65A are O-rings.
１５

３ １４ １３ ２ １２ ５ １１ ６

９ １６ ８ １０ ４

７

１

Ｉｎｓｐｅｃｔｉｏｎ ＨｏｌｅＧｒｅａｓｅ Ｏｕｔｌｅｔ

１７①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Thrust collar ⑦Oil Seal ⑧Ball Bearing⑨Spacer ⑩Retaining Ring ⑪Sleeve ⑫Bellows ASSY ⑬Gasket ⑭Protect Tube ⑮Cap Screw⑯Grease Nipple ⑰Square Head Plug

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑫.
1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ⑯ and square head plug ⑰.
3) Remove cap screws ⑮ and remove head ③ from casing ②.
4) Pull out gasket ⑬, bellows ASSY ⑫, and seal ring ⑤ from casing ②.
5) Remove cap screws ⑮ on the cover ④ side, and then remove the assembly consisting of rotor①, thrust collar ⑥, ball bearings ⑧, spacer ⑨, and retaining ring ⑩ (hereinafter called the rotor
assembly) from casing ②.
6) Remove retaining ring ⑩ from rotor ①, move ball bearings ⑧ and spacer ⑨ to the flange side,and then remove thrust collar ⑥ from rotor ①.
7) Remove ball bearings ⑧ and spacer ⑨ from rotor ①. Then pull out retaining ring ⑩ and cover ④
from rotor ①.
8) Remove oil seals ⑦ from casing ② and cover ④.

SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 26
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑫.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, and bellows ASSY ⑫ may be reused by lapping their seal faces in caseof minor damage.
2) Remove sleeve ⑪ before lapping the seal face of rotor ①. As sleeve ⑪ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑪ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seals ⑦ and gasket ⑬ with new ones regardless of their conditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install oil seals ⑦ to casing ② and cover ④.
2) Put cover ④ through rotor ① and move the cover to the flange of rotor ①.
3) Put retaining ring ⑩ through rotor ① and move the retaining ring to the vicinity of cover ④.
4) Insert ball bearing ⑧, spacer ⑨, and ball bearing ⑧ to rotor ① in order, and then install thrustcollar ⑥ to rotor ①. Then move ball bearing ⑧ and spacer ⑨ to the thrust collar ⑥ side, andinstall retaining ring ⑩.
5) Install the rotor assembly assembled in step 4) to casing ②.
6) Install cover ④ to casing ②, and evenly tighten cap screws ⑮ in a cross pattern to secure
cover ④ to casing ②.
7) Install seal ring ⑤, bellows ASSY ⑫, and gasket ⑬ to casing ②.
8) Evenly tighten cap screws ⑮ in a cross pattern to secure head ③ to casing ②.
9) Check that rotor ① smoothly rotates.
10) Install grease nipple ⑯ and fill the grease through it. Continue to fill until new grease comesout from the grease outlet. After greasing, attach square head plug ⑰.

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)27A‐3）For simplex, flange connection （ACLF, 80A）
３ １４ １３ １２ ５ １１ １０

２ １７ ８

１６

７

９

４

６

１ １９ ２０

１５Ｇｒｅａｓｅ Ｏｕｔｌｅｔ
１８
Ｉｎｓｐｅｃｔｉｏｎ Ｈｏｌｅ

①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Oil Seal ⑦Ball Bearing ⑧Spacer⑨Retaining Ring ⑩Oil Seal (O-ring) ⑪Sleeve ⑫Bellows ASSY ⑬Gasket ⑭Protect Tube
⑮Cap Screw ⑯Cap Screw ⑰Grease Nipple ⑱Square Head Plug ⑲Rotor Flange ⑳Split Ring

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑫.
1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ⑰ and square head plug ⑱.
3) Move rotor flange ⑲ to the casing ② side and remove split ring ⑳. Then pull out rotor flange ⑲
from rotor ①.
4) Remove cap screws ⑯ and remove head ③ from casing ②.
5) Pull out gasket ⑬, bellows ASSY ⑫, and seal ring ⑤ from casing ②.
6) Remove cap screws ⑮, and then remove cover ④ from casing ②.
7) Pull out the assembly consisting of rotor ①, ball bearings ⑦, spacer ⑧, and retaining ring ⑨(hereinafter called the rotor assembly) from casing ②.
8) Remove retaining ring ⑨ from rotor ①, and then remove ball bearings ⑦ and spacer ⑧.
9) Remove oil seal (O-ring) ⑩ from casing ② and oil seal ⑥ from cover ④.

SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 28
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑫.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, and bellows ASSY ⑫ may be reused by lapping their seal faces in caseof minor damage.
2) Remove sleeve ⑪ before lapping the seal face of rotor ①. As sleeve ⑪ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑪ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seal ⑥, oil seal (O-ring) ⑩, and gasket ⑬ with new ones regardless of theirconditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install oil seal (O-ring) ⑩ to casing ② and oil seal ⑥ to cover ④.
2) Insert ball bearing ⑦, spacer ⑧, and ball bearing ⑦ to rotor ① in order, and then installretaining rings ⑨.
3) Install the rotor assembly assembled in step 2) to casing ②.
4) Install cover ④ to casing ②, and evenly tighten cap screws ⑮ in a cross pattern to secure
cover ④.
5) Install seal ring ⑤, bellows ASSY ⑫, and gasket ⑬ to casing ②.
6) Install head ③ to casing ②, and evenly tighten cap screws ⑯ in a cross pattern to securehead ③.
7) Check that rotor ① smoothly rotates.
8) Insert rotor flange ⑲ into rotor ① and install split ring ⑳. Then move rotor flange ⑲ to thesplit ring ⑳ side.
9) Install grease nipple ⑰ and fill the grease through it. Continue to fill until new grease comes out
from the grease outlet. After greasing, attach square head plug ⑱.

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)29A‐4）For duplex, stationary IP, thread connection （AC, 15A～80A）
An explanation is given below with reference to AC 25A (figure shown below).
Although there are size differences indicated below with asterisks (*), the same workflow isapplied.
* 15A and 20A do not have protect tube ⑬.
* Oil seals ⑥ on the bellows side of 50A, 65A, and 80A are O-rings.
* The length and number of cap screws ⑮ on the rotor side are different from those on thehead side.
１４

１３ １２ １１ ５ １０ ８ １６ ７

９

４

６

１

Ｉｎｔｅｒｎａｌ Ｐｉｐｅ

Ｇｒｅａｓｅ Ｏｕｔｌｅｔ
Ｉｎｓｐｅｃｔｉｏｎ Ｈｏｌｅ
３ １５

２ １７

①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Oil Seal ⑦Ball Bearing ⑧Spacer⑨Retaining Ring ⑩Sleeve ⑪Bellows ASSY ⑫Gasket ⑬Protect Tube ⑭Elbow⑮Cap Screw ⑯Grease Nipple ⑰Square Head Plug

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑪.
1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ⑯ and square head plug ⑰.
3) Remove elbow ⑭ from head ③.
4) Remove the internal pipe.
5) Remove cap screws ⑮ and remove head ③ from casing ②.
6) Pull out gasket ⑫, bellows ASSY ⑪, and seal ring ⑤ from casing ②.
7) Remove cap screws ⑮ on the cover ④ side, and then remove cover ④ from casing ②.
8) Pull out the assembly consisting of rotor ①, ball bearings ⑦, spacer ⑧, and retaining ring ⑨(hereinafter called the rotor assembly) from casing ②.
9) Remove retaining ring ⑨ from rotor ①, and then remove ball bearings ⑦ and spacer ⑧.
10) Remove oil seals ⑥ from casing ② and cover ④.

SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 30
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑪.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, and bellows ASSY ⑪ may be reused by lapping their seal faces in caseof minor damage.
2) Remove sleeve ⑩ before lapping the seal face of rotor ①. As sleeve ⑩ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑩ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seals ⑥ and gasket ⑫ with new ones regardless of their conditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install oil seals ⑥ to casing ② and cover ④.
2) Insert ball bearing ⑦, spacer ⑧, and ball bearing ⑦ to rotor ① in order, and then installretaining rings ⑨.
3) Install the rotor assembly assembled in step 2) to casing ②.
4) Install cover ④ to casing ②, and evenly tighten cap screws ⑮ in a cross pattern to secure
cover ④.
5) Install seal ring ⑤, bellows ASSY ⑪, and gasket ⑫ to casing ②.
6) Install head ③ to casing ②, and evenly tighten cap screws ⑮ in a cross pattern to securehead ③.
7) Check that rotor ① smoothly rotates.
8) Install grease nipple ⑯ and fill the grease through it. Continue to fill until new grease comes out
from the grease outlet. After greasing, attach square head plug ⑰.
9) Install the internal pipe.
10) Wrap seal tape around the taper thread of head ③, and then install elbow ⑭.

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)31A‐5）For duplex, stationary IP, flange connection （ACF, 15A～65A）
An explanation is given below with reference to ACF 25A (figure shown below).
Although there are size differences indicated below with asterisks (*), the same workflow isapplied.
* 15A and 20A do not have protect tube ⑭.
* Oil seals ⑦ on the bellows side of 50A and 65A are O-rings.
１６ １５

１４ １３ １２ ５ １１ ６ １８ ９

８ １０ ４

７

１

Ｉｎｔｅｒｎａｌ Ｐｉｐｅ

Ｉｎｓｐｅｃｔｉｏｎ Ｈｏｌｅ
３ １７

Ｇｒｅａｓｅ Ｏｕｔｌｅｔ
２ １９①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Thrust collar ⑦Oil Seal ⑧Ball Bearing⑨Spacer ⑩Retaining Ring ⑪Sleeve ⑫Bellows ASSY ⑬Gasket ⑭Protect Tube ⑮Lock Nut⑯Elbow ⑰Cap Screw ⑱Grease Nipple ⑲Square Head Plug

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑫.
1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ⑱ and square head plug ⑲.
3) Remove elbow ⑯ from head ③.
4) Remove lock nut ⑮ and the internal pipe.
5) Remove cap screws ⑰ and remove head ③ from casing ②.
6) Pull out gasket ⑬, bellows ASSY ⑫, and seal ring ⑤ from casing ②.
7) Remove cap screws ⑮ on the cover ④ side, and then remove the assembly consisting of rotor①, thrust collar ⑥, ball bearings ⑧, spacer ⑨, and retaining ring ⑩ (hereinafter called the rotor
assembly) from casing ②.
8) Remove retaining ring ⑩ from rotor ①, move ball bearings ⑧ and spacer ⑨ to the flange side,and then remove thrust collar ⑥ from rotor ①.
9) Remove ball bearings ⑧ and spacer ⑨ from rotor ①. Then pull out retaining ring ⑩ and cover ④
from rotor ①.
10) Remove oil seals ⑦ from casing ② and cover ④.

SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 32
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑫.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, and bellows ASSY ⑫ may be reused by lapping their seal faces in caseof minor damage.
2) Remove sleeve ⑪ before lapping the seal face of rotor ①. As sleeve ⑪ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑪ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seals ⑦ and gasket ⑬ with new ones regardless of their conditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install oil seals ⑦ to casing ② and cover ④.
2) Put cover ④ through rotor ① and move the cover to the flange of rotor ①.
3) Put retaining ring ⑩ through rotor ① and move the retaining ring to the vicinity of cover ④.
4) Insert ball bearing ⑧, spacer ⑨, and ball bearing ⑧ to rotor ① in order, and then install thrustcollar ⑥ to rotor ①. Then move ball bearing ⑧ and spacer ⑨ to the thrust collar ⑥ side, andinstall retaining ring ⑩.
5) Install the rotor assembly assembled in step 4) to casing ②.
6) Install cover ④ to casing ②, and evenly tighten cap screws ⑰ in a cross pattern to secure
cover ④ to casing ②.
7) Install seal ring ⑤, bellows ASSY ⑫, and gasket ⑬ to casing ②.
8) Evenly tighten cap screws ⑰ in a cross pattern to secure head ③ to casing ②.
9) Check that rotor ① smoothly rotates.
10) Install grease nipple ⑱ and fill the grease through it. Continue to fill until new grease comesout from the grease outlet. After greasing, attach square head plug ⑲.
11) Screw the internal pipe into the product and secure it with lock nut ⑮.
12) Wrap seal tape around the taper thread of head ③, and then install elbow ⑯.

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)33

A‐6）For duplex, stationary IP, flange connection （ACF, 80A）
１６ １５

３

１４ １３ １２ ５ １１ １０ ２ １９

８

７

９

４

６

１ ２１ ２２

Ｉｎｔｅｒｎａｌ Ｐｉｐｅ

１８
Ｉｎｓｐｅｃｔｉｏｎ Ｈｏｌｅ２０

１７
Ｇｒｅａｓｅ Ｏｕｔｌｅｔ①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Oil Seal ⑦Ball Bearing ⑧Spacer⑨Retaining Ring ⑩Oil Seal (O-ring) ⑪Sleeve ⑫Bellows ASSY ⑬Gasket ⑭Protect Tube
⑮Lock Nut ⑯Elbow ⑰Cap Screw ⑱Cap Screw ⑲Grease Nipple ⑳Square Head Plug
㉑Rotor Flange ㉒Split Ring

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑫.

1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ⑲ and square head plug ⑳.
3) Move rotor flange ㉑ to the casing ② side and remove split ring㉒. Then pull out rotor flange ㉑
from rotor ①.
4) Remove elbow ⑯ from head ③.
5) Remove lock nut ⑮ and the internal pipe.
6) Remove cap screws ⑱ and remove head ③ from casing ②.
7) Pull out gasket ⑬, bellows ASSY ⑫, and seal ring ⑤ from casing ②.
8) Remove cap screws ⑰, and then remove cover ④ from casing ②.
9) Pull out the assembly consisting of rotor ①, ball bearings ⑦, spacer ⑧, and retaining ring ⑨(hereinafter called the rotor assembly) from casing ②.
10) Remove retaining ring ⑨ from rotor ①, and then remove ball bearings ⑦ and spacer ⑧.
11) Remove oil seal (O-ring) ⑩ from casing ② and oil seal ⑥ from cover ④.

SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 34
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, and bellows ASSY ⑫.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, and bellows ASSY ⑫ may be reused by lapping their seal faces in caseof minor damage.
2) Remove sleeve ⑪ before lapping the seal face of rotor ①. As sleeve ⑪ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑪ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seal ⑥, oil seal (O-ring) ⑩, and gasket ⑬ with new ones regardless of theirconditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install oil seal (O-ring) ⑩ to casing ② and oil seal ⑥ to cover ④.
2) Insert ball bearing ⑦, spacer ⑧, and ball bearing ⑦ to rotor ① in order, and then installretaining rings ⑨.
3) Install the rotor assembly assembled in step 2) to casing ②.
4) Install cover ④ to casing ②, and evenly tighten cap screws ⑰ in a cross pattern to secure
cover ④.
5) Install seal ring ⑤, bellows ASSY ⑫, and gasket ⑬ to casing ②.
6) Install head ③ to casing ②, and evenly tighten cap screws ⑱ in a cross pattern to securehead ③.
7) Check that rotor ① smoothly rotates.
8) Insert rotor flange ㉑ into rotor ① and install split ring ㉒. Then move rotor flange ㉑ to thesplit ring ㉒ side.
9) Install grease nipple ⑲ and fill the grease through it. Continue to fill until new grease comes out
from the grease outlet. After greasing, attach square head plug ⑳.
10) Screw the internal pipe into the product and secure it with lock nut ⑮.
11) Wrap seal tape around the taper thread of head ③, and then install elbow ⑯.

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)35A‐7）For duplex, rotational IP, thread connection （ACW-1/ACW-2 , 25A～40A）
An explanation is given below with reference to ACW-2 (figure shown below).
* The work procedure for ACW-1 is different from that for ACW-2 as described in paragraph (●).

Ｓｅａｌ Ｋｉｔ ｆｏｒ Ｉｎｔｅｒｎａｌ Ｐｉｐｅ
１８ １６ １５ ２０ １４ １３ １９ ３ １２ １１ ５ １０ ８ ２３ ７

９

４

６

１

１７
Ｉｎｔｅｒｎａｌ Ｐｉｐｅ

２１

Ｇｒｅａｓｅ Ｏｕｔｌｅｔ

Ｉｎｓｐｅｃｔｉｏｎ Ｈｏｌｅ
２２

２ ２４

①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Oil Seal ⑦Ball Bearing ⑧Spacer⑨Retaining Ring ⑩Sleeve ⑪Bellows ASSY ⑫Gasket ⑬Seat Ring ⑭Rotor Ring ⑮Spring⑯Washer ⑰Nut ⑱Washer ⑲O-ring ⑳O-ring ㉑Elbow ㉒Cap Screw ㉓Grease Nipple㉔Square Head Plug

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, bellows ASSY ⑪, seat ring ⑬, and rotor ring ⑭.
1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ㉓ and square head plug ㉔.
3) Remove elbow ㉑ from head ③.
4) Remove the seal kit for internal pipe (⑭ to ⑱ and ⑳) in the reverse order of installation, andthen remove the internal pipe.
* The installation procedure is described in "5-2) Internal pipe installation".
5) Remove cap screws ㉒ and remove head ③ from casing ②.
6) Pull out gasket ⑫, bellows ASSY ⑪, and seal ring ⑤ from casing ②.
7) Remove cap screws ㉒ on the cover ④ side, and then remove cover ④ from casing ②.
8) Pull out the assembly consisting of rotor ①, ball bearings ⑦, spacer ⑧, and retaining ring ⑨(hereinafter called the rotor assembly) from casing ②.
9) Remove retaining ring ⑨ from rotor ①, and then remove ball bearings ⑦ and spacer ⑧.
10) Remove oil seals ⑥ from casing ② and cover ④.
11) Remove seat ring ⑬ and O-ring ⑲ from head ③.

（●）For ACW-1 whose internal pipe is secured to a roll, the internal pipe comes off from theproduct when the product is removed from the roll. Thus, steps 3) and 4) are not required.

SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 36
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, bellows ASSY ⑪, seat ring ⑬, and rotor ring ⑭.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, bellows ASSY ⑪, seat ring ⑬, and rotor ring ⑭ may be reused bylapping their seal faces in case of minor damage.
2) Remove sleeve ⑩ before lapping the seal face of rotor ①. As sleeve ⑩ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑩ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seals ⑥, gasket ⑫, and O-rings ⑲ and ⑳ with new ones regardless of theirconditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install O-ring ⑲ and seat ring ⑬ to head ③.
2) Install oil seals ⑥ to casing ② and cover ④.
3) Insert ball bearing ⑦, spacer ⑧, and ball bearing ⑦ to rotor ① in order, and then installretaining rings ⑨.
4) Install the rotor assembly assembled in step 2) to casing ②.
5) Install cover ④ to casing ②, and evenly tighten cap screws ㉒ in a cross pattern to secure
cover ④.
6) Install seal ring ⑤, bellows ASSY ⑪, and gasket ⑫ to casing ②.
7) Install head ③ to casing ②, and evenly tighten cap screws ㉒ in a cross pattern to securehead ③.
8) Insert the internal pipe and install the seal kit for internal pipe (⑭ to ⑱ and ⑳).
* The installation procedure is described in "5-2) Internal pipe installation".
9) Check that rotor ① smoothly rotates.
10) Install grease nipple ㉓ and fill the grease through it. Continue to fill until new grease comesout from the grease outlet. After greasing, attach square head plug ㉔.
11) Wrap seal tape around the taper thread of head ③, and then install elbow ㉑.

（●）For ACW-1, secure the internal pipe in a roll, and then install the product to the roll.
After installing the product to the roll, perform steps 8) and 11).

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)37A‐8）For duplex, rotational IP, thread connection （ACW-1/ACW-2 , 50A～80A）
An explanation is given below with reference to ACW-2 65A (figure shown below).
* The work procedure for ACW-1 is different from that for ACW-2 as described in paragraph (●).
* The length and number of cap screws ㉕ on the rotor side are different from those on the headside.
* If the internal pipe is 25A, use a "split pin" instead of washer ⑳ to prevent looseness of nut ⑲.
２６

２３ ２１ １５ ３ １４ １３ １２ ５ １１ １０ ２ ２７ ８

７

９

４

６

１

Ｉｎｔｅｒｎａｌ Ｐｉｐｅ２４ １９ ２０ １８ １７ １６ ２２ ２５

２８

Ｓｅａｌ Ｋｉｔ ｆｏｒ Ｉｎｔｅｒｎａｌ Ｐｉｐｅ

Ｉｎｓｐｅｃｔｉｏｎ ＨｏｌｅＧｒｅａｓｅ Ｏｕｔｌｅｔ①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Oil Seal ⑦Ball Bearing ⑧Spacer⑨Retaining Ring ⑩Oil Seal (O-ring) ⑪Sleeve ⑫Bellows ASSY ⑬Gasket ⑭Protect Tube
⑮Seat Ring ⑯Rotor Ring ⑰Spring ⑱Washer ⑲Nut ⑳Washer ㉑O-ring ㉒O-ring㉓Gasket ㉔Elbow ㉕Cap Screw ㉖Cap Screw ㉗Grease Nipple ㉘Square Head Plug

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, bellows ASSY ⑫, seat ring ⑮, and rotor ring ⑯.
1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ㉗ and square head plug ㉘.
3) Remove cap screws ㉖, and then remove gasket ㉓ and elbow ㉔ from head ③.
4) Remove the seal kit for internal pipe (⑯ to ⑳ and ㉒) in the reverse order of installation, andthen remove the internal pipe.
* The installation procedure is described in "5-2) Internal pipe installation".
5) Remove cap screws ㉕ and remove head ③ from casing ②.
6) Pull out gasket ⑬, bellows ASSY ⑫, and seal ring ⑤ from casing ②.
7) Remove cap screws ㉕ on the cover ④ side, and then remove cover ④ from casing ②.
8) Pull out the assembly consisting of rotor ①, ball bearings ⑦, spacer ⑧, and retaining ring ⑨(hereinafter called the rotor assembly) from casing ②.
9) Remove retaining ring ⑨ from rotor ①, and then remove ball bearings ⑦ and spacer ⑧.
10) Remove oil seal (O-ring) ⑩ from casing ② and oil seal ⑥ from cover ④.
11) Remove seat ring ⑮ and O-ring ㉑ from head ③.
（●）For ACW-1 whose internal pipe is secured to a roll, the internal pipe comes off from theproduct when the product is removed from the roll. Thus, steps 3) and 4) are not required.

SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 38
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, bellows ASSY ⑫, seat ring ⑮, and rotor ring ⑯.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, bellows ASSY ⑫, seat ring ⑮, and rotor ring ⑯ may be reused bylapping their seal faces in case of minor damage.
2) Remove sleeve ⑪ before lapping the seal face of rotor ①. As sleeve ⑪ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑪ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seal ⑥, gasket ⑬, O-rings ⑲ and ⑳, and gasket ㉓ with new ones regardless of
their conditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install O-ring ⑲ and seat ring ⑮ to head ③.
2) Install oil seal (O-ring) ⑩ to casing ② and oil seal ⑥ to cover ④.
3) Insert ball bearing ⑦, spacer ⑧, and ball bearing ⑦ to rotor ① in order, and then installretaining rings ⑨.
4) Install the rotor assembly assembled in step 2) to casing ②.
5) Install cover ④ to casing ②, and evenly tighten cap screws ㉕ in a cross pattern to secure
cover ④.
6) Install seal ring ⑤, bellows ASSY ⑫, and gasket ⑬ to casing ②.
7) Install head ③ to casing ②, and evenly tighten cap screws ㉕ in a cross pattern to securehead ③.
8) Insert the internal pipe and install the seal kit for internal pipe (⑯ to ⑳ and ㉒).
* The installation procedure is described in "5-2) Internal pipe installation".
9) Check that rotor ① smoothly rotates.
10) Install grease nipple ㉗ and fill the grease through it. Continue to fill until new grease comesout from the grease outlet. After greasing, attach square head plug ㉘.
11) Install gasket ㉓ to head ③, and evenly tighten cap screws ㉖ in a cross pattern to secure
elbow ㉔.
（●）For ACW-1, secure the internal pipe in a roll, and then install the product to the roll.
After installing the product to the roll, perform steps 8) and 11).

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)39A‐9）For duplex, rotational IP, flange connection （ACFW-1/ACFW-2 , 25A～40A）
An explanation is given below with reference to ACFW-2 (figure shown below).
* The work procedure for ACFW-1 is different from that for ACFW-2 as described in paragraph (●).
Ｓｅａｌ Ｋｉｔ ｆｏｒ Ｉｎｔｅｒｎａｌ Ｐｉｐｅ
１９ １７ １６ ２１ １５ ２０ １４ ３ １３ １２ ５ １１ ６ ２４ ９

８ １０ ７１

１８Ｉｎｔｅｒｎａｌ Ｐｉｐｅ

２２

Ｇｒｅａｓｅ Ｏｕｔｌｅｔ

Ｉｎｓｐｅｃｔｉｏｎ Ｈｏｌｅ２３

２ ２５ ４①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Thrust Collar ⑦Oil Seal ⑧Ball Bearing⑨Spacer ⑩Retaining Ring ⑪Sleeve ⑫Bellows ASSY ⑬Gasket ⑭Seat Ring ⑮Rotor Ring
⑯Spring ⑰Washer ⑱Nut ⑲Washer ⑳O-ring ㉑O-ring ㉒Elbow ㉓Cap Screw㉔Grease Nipple ㉕Square Head Plug

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, bellows ASSY ⑫, seat ring ⑭, and rotor ring ⑮.
1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ㉔ and square head plug ㉕.
3) Remove elbow ㉒ from head ③.
4) Remove the seal kit for internal pipe (⑮ to ⑲ and ㉑) in the reverse order of installation, andthen remove the internal pipe.
* The installation procedure is described in "5-2) Internal pipe installation".
5) Remove cap screws ㉓ and remove head ③ from casing ②.
6) Pull out gasket ⑬, bellows ASSY ⑫, and seal ring ⑤ from casing ②.
7) Remove cap screws ㉓ on the cover ④ side, and then remove the assembly consisting of rotor①, thrust collar ⑥, ball bearings ⑧, spacer ⑨, and retaining ring ⑩ (hereinafter called the rotor
assembly) from casing ②.
8) Remove retaining ring ⑩ from rotor ①, move ball bearings ⑧ and spacer ⑨ to the flange side,and then remove thrust collar ⑥ from rotor ①.
9) Remove ball bearings ⑧ and spacer ⑨ from rotor ①. Then pull out retaining ring ⑩ and cover ④
from rotor ①.
10) Remove oil seals ⑦ from casing ② and cover ④.
11) Remove seat ring ⑭ and O-ring ⑳ from head ③.
（●）For ACFW-1 whose internal pipe is secured to a roll, the internal pipe comes off from theproduct when the product is removed from the roll. Thus, steps 3) and 4) are not required.
SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 40
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, bellows ASSY ⑫, seat ring ⑭, and rotor ring ⑮.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, bellows ASSY ⑫, seat ring ⑭, and rotor ring ⑮ may be reused bylapping their seal faces in case of minor damage.
2) Remove sleeve ⑪ before lapping the seal face of rotor ①. As sleeve ⑪ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑪ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seals ⑦, gasket ⑬, and O-rings ⑳ and ㉑ with new ones regardless of theirconditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install O-ring ⑳ and seat ring ⑭ to head ③.
2) Install oil seals ⑦ to casing ② and cover ④.
3) Put cover ④ through rotor ① and move the cover to the flange of rotor ①.
4) Put retaining ring ⑩ through rotor ① and move the retaining ring to the vicinity of cover ④.
5) Insert ball bearing ⑧, spacer ⑨, and ball bearing ⑧ to rotor ① in order, and then install thrustcollar ⑥ to rotor ①. Then move ball bearing ⑧ and spacer ⑨ to the thrust collar ⑥ side, andinstall retaining ring ⑩.
6) Install the rotor assembly assembled in step 5) to casing ②.
7) Install cover ④ to casing ②, and evenly tighten cap screws ㉓ in a cross pattern to secure
cover ④.
8) Install seal ring ⑤, bellows ASSY ⑫, and gasket ⑬ to casing ②.
9) Install head ③ to casing ②, and evenly tighten cap screws ㉓ in a cross pattern to securehead ③.
10) Insert the internal pipe and install the seal kit for internal pipe (⑮ to ⑲ and ㉑).
* The installation procedure is described in "5-2) Internal pipe installation".
11) Check that rotor ① smoothly rotates.
12) Install grease nipple ㉔ and fill the grease through it. Continue to fill until new grease comesout from the grease outlet. After greasing, attach square head plug ㉕.
13) Wrap seal tape around the taper thread of head ③, and then install elbow ㉒.
（●）For ACFW-1, secure the internal pipe in a roll, and then install the product to the roll.
After installing the product to the roll, perform steps 10) and 13).

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)41

A‐10）For duplex, rotational IP, flange connection （ACFW-1/ACFW-2 , 50A～65A）
An explanation is given below with reference to ACFW-2 (figure shown below).
* The work procedure for ACFW-1 is different from that for ACFW-2 as described in paragraph (●).
* If the internal pipe is 25A, use a “split pin” instead of washer ㉑ to prevent looseness of nut ⑳.
２７

２４ ２２ １６ ３ １５ １４ １３ ５ １２ １１ ６ ２８ ９

２

８ １０ ４

７

１

Ｉｎｔｅｒｎａｌ Ｐｉｐｅ

２５ ２０ ２１ １９ １８ １７ ２３ ２６２９Ｓｅａｌ Ｋｉｔ ｆｏｒ Ｉｎｔｅｒｎａｌ Ｐｉｐｅ

Ｉｎｓｐｅｃｔｉｏｎ ＨｏｌｅＧｒｅａｓｅ Ｏｕｔｌｅｔ①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Thrust Collar ⑦Oil Seal ⑧Ball Bearing⑨Spacer ⑩Retaining Ring ⑪Oil Seal (O-ring) ⑫Sleeve ⑬Bellows ASSY ⑭Gasket⑮Protect Tube ⑯Seat Ring ⑰Rotor Ring ⑱Spring ⑲Washer ⑳Nut ㉑Washer ㉒O-ring㉓O-ring ㉔Gasket ㉕Elbow ㉖Cap Screw ㉗Cap Screw ㉘Grease Nipple㉙Square Head Plug

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, bellows ASSY ⑬, seat ring ⑯, and rotor ring ⑰.
1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ㉘ and square head plug ㉙.
3) Remove cap screws ㉗, and then remove gasket ㉔ and elbow ㉕ from head ③.
4) Remove the seal kit for internal pipe (⑰ to ㉑ and ㉓) in the reverse order of installation, andthen remove the internal pipe.
* The installation procedure is described in "5-2) Internal pipe installation".
5) Remove cap screws ㉖ and remove head ③ from casing ②.
6) Pull out gasket ⑭, bellows ASSY ⑬, and seal ring ⑤ from casing ②.
7) Remove cap screws ㉖ on the cover ④ side, and then remove the assembly consisting of rotor①, thrust collar ⑥, ball bearings ⑧, spacer ⑨, and retaining ring ⑩ (hereinafter called the rotor
assembly) from casing ②.
8) Remove retaining ring ⑩ from rotor ①, move ball bearings ⑧ and spacer ⑨ to the flange side,and then remove thrust collar ⑥ from rotor ①.
9) Remove ball bearings ⑧ and spacer ⑨ from rotor ①. Then pull out retaining ring ⑩ and cover ④
from rotor ①.
10) Remove oil seal (O-ring) ⑪ from casing ② and oil seal ⑦ from cover ④.
11) Remove seat ring ⑯ and O-ring ㉒ from head ③.
（●）For ACFW-1 whose internal pipe is secured to a roll, the internal pipe comes off from theproduct when the product is removed from the roll. Thus, steps 3) and 4) are not required.
SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 42
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, bellows ASSY ⑬, seat ring ⑯, and rotor ring ⑰.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, bellows ASSY ⑬, seat ring ⑯, and rotor ring ⑰ may be reused bylapping their seal faces in case of minor damage.
2) Remove sleeve ⑫ before lapping the seal face of rotor ①. As sleeve ⑫ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑫ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seal ⑦, oil seal (O-ring) ⑪, gaskets ⑭ and ㉔, and O-rings ㉒ and ㉓ with newones regardless of their conditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install O-ring ㉒ and seat ring ⑯ to head ③.
2) Install oil seal (O-ring) ⑪ to casing ② and oil seal ⑦ to cover ④.
3) Put cover ④ through rotor ① and move the cover to the flange of rotor ①.
4) Put retaining ring ⑩ through rotor ① and move the retaining ring to the vicinity of cover ④.
5) Insert ball bearing ⑧, spacer ⑨, and ball bearing ⑧ to rotor ① in order, and then install thrustcollar ⑥ to rotor ①. Then move ball bearing ⑧ and spacer ⑨ to the thrust collar ⑥ side, andinstall retaining ring ⑩.
6) Install the rotor assembly assembled in step 5) to casing ②.
7) Install cover ④ to casing ②, and evenly tighten cap screws ㉖ in a cross pattern to secure
cover ④.
8) Install seal ring ⑤, bellows ASSY ⑬, and gasket ⑭ to casing ②.
9) Install head ③ to casing ②, and evenly tighten cap screws ㉖ in a cross pattern to securehead ③.
10) Insert the internal pipe and install the seal kit for internal pipe (⑰ to ㉑ and ㉓).
* The installation procedure is described in "5-2) Internal pipe installation".
11) Check that rotor ① smoothly rotates.
12) Install grease nipple ㉘ and fill the grease through it. Continue to fill until new grease comesout from the grease outlet. After greasing, attach square head plug ㉙.
13) Install gasket ㉔ to head ③, and evenly tighten cap screws ㉗ in a cross pattern to secure
elbow ㉕.
（●）For ACFW-1, secure the internal pipe in a roll, and then install the product to the roll.
After installing the product to the roll, perform steps 10) and 13).

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)43

A‐11）For duplex, rotational IP, flange connection （ACFW-1/ACFW-2 , 80A）
An explanation is given below with reference to ACFW-2 (figure shown below).
* The work procedure for ACFW-1 is different from that for ACFW-2 as described in paragraph (●).
２７

２４

２３ ２１ １５ ３ １４ １３ １２ ５ １１ １０ ２ ２８ ８

７

９

４

６

１ ３０
３１

Ｉｎｔｅｒｎａｌ Ｐｉｐｅ１９ ２０ １８ １７ １６ ２２Ｓｅａｌ Ｋｉｔ ｆｏｒ Ｉｎｔｅｒｎａｌ Ｐｉｐｅ２６２９Ｉｎｓｐｅｃｔｉｏｎ Ｈｏｌｅ

２５
Ｇｒｅａｓｅ Ｏｕｔｌｅｔ①Rotor ②Casing ③Head ④Cover ⑤Seal Ring ⑥Oil Seal ⑦Ball Bearing ⑧Spacer⑨Retaining Ring ⑩Oil Seal (O-ring) ⑪Sleeve ⑫Bellows ASSY ⑬Gasket ⑭Protect Tube
⑮Seat Ring ⑯Rotor Ring ⑰Spring ⑱Washer ⑲Nut ⑳Washer ㉑O-ring ㉒O-ring㉓Gasket ㉔Elbow ㉕Cap Screw ㉖Cap Screw ㉗Cap Screw ㉘Grease Nipple㉙Square Head Plug ㉚Rotor Flange ㉛Split Ring

< Disassembly >Carefully disassemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces of rotor ①, seal ring ⑤, bellows ASSY ⑫, seat ring ⑮, and rotor ring ⑯.
1) Disconnect all pipes, etc. connected to the product.
2) Remove grease nipple ㉘ and square head plug ㉙.
3) Move rotor flange ㉚ to the casing ② side and remove split ring ㉛.Then pull out rotor flange ㉚
from rotor ①.
4) Remove cap screws ㉗, and then remove gasket ㉓ and elbow ㉔ from head ③.
5) Remove the seal kit for internal pipe (⑯ to ⑳ and ㉒) in the reverse order of installation, andthen remove the internal pipe.
* The installation procedure is described in "5-2) Internal pipe installation".
6) Remove cap screws ㉖ and remove head ③ from casing ②.
7) Pull out gasket ⑬, bellows ASSY ⑫, and seal ring ⑤ from casing ②.
8) Remove cap screws ㉕, and then remove cover ④ from casing ②.
9) Pull out the assembly consisting of rotor ①, ball bearings ⑦, spacer ⑧, and retaining ring ⑨(hereinafter called the rotor assembly) from casing ②.
10) Remove retaining ring ⑨ from rotor ①, and then remove ball bearings ⑦ and spacer ⑧.
11) Remove oil seal (O-ring) ⑩ from casing ② and oil seal ⑥ from cover ④.
12) Remove seat ring ⑮ and O-ring ㉑ from head ③.

（●）For ACFW-1 whose internal pipe is secured to a roll, the internal pipe comes off from theproduct when the product is removed from the roll. Thus, steps 4) and 5) are not required.
SHOWA GIKEN INDUSTRIAL CO., LTD

https://www.sgk-p.co.jp

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan 44
Phone : +81-48-728-9460
Fax. : +81-48-728-9461

< Inspection >Clean each part and check for damage. In particular, check the degree of wear and damage on theseal faces of rotor ①, seal ring ⑤, bellows ASSY ⑫, seat ring ⑮, and rotor ring ⑯.

< Repair and parts replacement >1) Rotor ①, seal ring ⑤, bellows ASSY ⑫, seat ring ⑮, and rotor ring ⑯ may be reused bylapping their seal faces in case of minor damage.
2) Remove sleeve ⑪ before lapping the seal face of rotor ①. As sleeve ⑪ is deformed whenremoved, it cannot be reused. After lapping the seal face, prepare a new sleeve ⑪ and pressfit it in rotor ① so that no eccentricity exists.
3) Replace oil seal ⑥, oil seal (O-ring) ⑩, gaskets ⑬ and ㉓, and O-rings ㉑ and ㉒ with newones regardless of their conditions.
4) If repair or reuse of parts is impossible, replace them with our new genuine parts.
Contact our sales representative to request genuine parts.

< Assembly >Assemble the product in the reverse order of disassembly.
Carefully assemble the product so that each part is not damaged. In particular, be careful not todamage the seal faces. If dust adheres to the seal face, wipe it off with thinner.
1) Install O-ring ㉑ and seat ring ⑮ to head ③.
2) Install oil seal (O-ring) ⑩ to casing ② and oil seal ⑥ to cover ④.
3) Insert ball bearing ⑦, spacer ⑧, and ball bearing ⑦ to rotor ① in order, and then installretaining rings ⑨.
4) Install the rotor assembly assembled in step 3) to casing ②.
5) Install cover ④ to casing ②, and evenly tighten cap screw ㉕ in a cross pattern to secure
cover ④.
6) Install seal ring ⑤, bellows ASSY ⑫, and gasket ⑬ to casing ②.
7) Install head ③ to casing ②, and evenly tighten cap screws ㉖ in a cross pattern to securehead ③.
8) Insert the internal pipe and install the seal kit for internal pipe (⑯ to ⑳ and ㉒).
* The installation procedure is described in "5-2) Internal pipe installation".
9) Check that rotor ① smoothly rotates.
10) Insert rotor flange ㉚ into rotor ① and install split ring ㉛. Then move rotor flange ㉚ to thesplit ring ㉛ side.
11) Install grease nipple ㉘ and fill the grease through it. Continue to fill until new grease comesout from the grease outlet. After greasing, attach square head plug ㉙.
12) Install gasket ㉓ to head ③, and evenly tighten cap screws ㉗ in a cross pattern to secure
elbow ㉔.
（●）For ACFW-1, secure the internal pipe in a roll, and then install the product to the roll.
After installing the product to the roll, perform steps 8) and 12).

Phone : +81-3-3598-1400 (Export Department) Phone : +81-3-3598-1400 (Tokyo Office)Phone : +81-6-6371-8341 (Osaka Office)Phone : +81-52-938-8825 (Nagoya Office)45