AIR RIVETERBUILT-IN ON-DEMANDVACUUM SYSTEM

R1A1(A)
CONTENTSIMPORTANT SAFETY
INSTRUCTIONS.................................1
NOMENCLATURE .............................4
TECHNICAL DATA ...........................5
PREPARATION BEFORE USE .......6
OPERATING THE AIR RIVETER....8

MAINTENANCE .................................9TROUBLESHOOTING .....................16
EXPLODED VIEW............................17
PARTS LIST .....................................18
STORAGE .......................................19
ORDERING PARTS .........................19
Professional model of air riveter to install blind rivets.
Thank you very much for purchasing “LOBSTER” air riveter.
To ensure correct operation, please read this instruction manual carefully, and keep it in a safe place
for later reference.
In case you have some trouble and failure, please refer “Troubleshooting” in the Instruction Manual.
Lobtex Co.,Ltd. has the copyright of this manual. It is prohibited to publish, copy or translate to otherlanguage without prior consent.
MANUFACTURER

International Marketing & Sales Division
12-8 Shijo-cho, Higashi-Osaka City
Osaka 579-8053, Japan
Telephone: +81(72)981-7466
Telefacs: +81(72)981-9420
URL http://www.lobtex.co.jp/
PRINTED IN JAPANⱥㄒ㸭(1*/,6+

INSTRUCTION MANUALIMPORTANT SAFETY INSTRUCTIONS‫ ی‬Be sure to read the following Important Safety Instructions carefully and make sure that you
understand them thoroughly before using this tool.

ⱥㄒ㸭(1*/,6+‫ ی‬Always wear eye-protection at all times during use. If this is not observed, the cut mandrels
may eject out when the rivets are cut and cause serious injury.
‫ ی‬This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
‫ی‬The Important Safety Instructions are divided into
WARNING and
The differences between these two levels are described below.

CAUTION .

WARNING : Indicates a potentially hazardous situation which, if not avoided, could result in deathor serious injury to the operator.
CAUTION : Indicates a potentially hazardous situation which, if not avoided, may result inmoderate injury to the operator or physical damage.
Moreover, failure to follow the instructions marked with the
CAUTION symbol or cautions withouta
CAUTION symbol which appear in the text of this manual may also have serious results in somecases. Always be sure to observe the instructions given in the Important Safety Instructions.
Note: Important note about the installation, handling and maintenance of this product.

‫ ی‬After reading this manual, keep it in a safe place where it is easily accessible to all users.

WARNING
1. The air pressure should be kept within the range of 0.5 to 0.6 MPa (5 to 6 kgf/cm2, 71 to 85 psi).
࣭If an air pressure which is greater than this is used, the tool may become damaged, and injury orࠉdamage to property may result.
2. Never look into the nosepiece of the tool, and never point the nosepiece toward other persons.
࣭If the tool is used while the cut mandrels are still inside the tool not being ejected, these mandrels
may be ejected from the tool’s nosepiece during use and cause serious injury.
3. Always attach the tank case unit before use.
࣭If you work without attaching the tank case unit, there is a risk that the mandrel of rivet that has
been cut is not discharged, and will be clogged inside exhaust pipe,causing a fault of the equipment.
Also, these mandrels may be ejected from the tool’s nosepiece during use and cause serious injury.
4. Wear protective glasses during use.
࣭Failure to do so may result in an accident or personal injury in case that a rivet or a piece of
cut-mandrels jumps out toward you.
ࠉ
5. Make sure that the tool and the air source are connected securely.
࣭If the threads of the joints do not match or if the screws are not inserted far enough, the air hose
may become disconnected during use and injury may result.
࣭Use hose bands to securely connect the air hose joint and air hose. If they are not connected
securely enough, the air hose may become disconnected during use and injury may result.
6. Turn off the air supply before disconnecting the tool from the air source.
࣭Compressed air may cause the air hose to whip around, and injury may result.
7. Check that all the tool parts are free from damage before use. Any damaged parts should
be repaired before the tool is used.
࣭If the tool is used while any parts are still damaged, injury may result.
࣭If the tool is damaged by objects being dropped onto it, for instance, the damaged part may break
and accident or injury may result.
࣭Don't pull and drag the tool by the air hose. It may trigger some damages on the tool body,breakage of Rotary Joint or some other defects and lead serious troubles with injuries.
8. If using in elevated locations, use a safety harness, and take care to avoid dropping rivets
or the tool itself.
࣭Accident or injury may result if this practice is not followed.
1

CAUTIONⱥㄒ㸭(1*/,6+

1. Before starting maintenance or disassembling the unit to replace parts, be sure to stop
air supply.
࣭Performing maintenance or disassembly with air supplied may cause a part to jump out, oil tosquirt out, or the unit to perform unexpected behavior, and may result in an accident or personal
injury.
2. Tighten the Bleed Plug firmly before use.
࣭If the Bleed Plug is loose or coming off during use, oil may squirt out resulting in an accident or
personal injury.
3. Do not operate the tool with the Frame Head removed.
࣭Items such as fingers may become caught in the mechanism.
4. Do not bring your face close to the exhaust ports.
࣭Pressurized air containing fine particles is discharged from the exhaust ports during use. Keepeyes away from this area.
5. Avoid skin contact with substances such as hydraulic oil, lubricating oil and grease.
࣭Such substances may cause inflammation of the skin. If they come into contact with your skin,wash the affected area thoroughly.
6. The parts to be used must be those supplied from us or recommended by us.
Select and attach parts applicable to your rivet.
࣭Otherwise the unit may not produce maximum performance and may sometimes malfunction
resulting in an accident or personal injury.
7. Make sure that the workplace is safe, clean and organized.
࣭Accidents can easily occur in untidy workplaces.
࣭If the cutmandrels are allowed to fall onto the floor, you may slip on them, and injury may result.
8. Avoid uncomfortable postures while working.
࣭You may fall down and injury may result.
9. Keep people who are not involved in work away from the workplace.
࣭Accidents or injury may result.
10. Maintain the tool with proper care.
࣭Refer to the Instruction Manual for details on replacing parts and attachments, otherwise injury may
occur.
11. Keep the handgrip always dry and clean, and avoid adhesion of oil and grease.
࣭Otherwise the grip may slip from your hand resulting in falling of the unit.
12. Do not leave the floor littered with cut mandrels.
࣭Cut mandrels are dangerous because their ends are sharp. Stepping on them is also dangerous
easily causing a slip and fall accident.
13. Use the tool carefully and concentrate on correct operation at all times.
࣭Use the tool with proper care, paying full attention to methods of handling and operation andࠉsurrounding conditions. Accidents and injury may result if this practice is not followed.
࣭Use common sense at all times, otherwise accidents or injury may result.
࣭When you are tired, do not use the tool, otherwise accidents or injury may result.
14. Ask Lobtex to carry out any repair work required.
࣭Repair work should only be carried out by a qualified technician. Please contact your nearestࠉ
ࠉ“LOBSTER” distributor, representative, or direct to Lobtex Co., Ltd., Osaka. If the tool is repairedby someone without the necessary qualifications and experience, the tool may not perform to
optimum standards, and accidents or injury may result.
15. Do not attempt to modify the tool.
࣭Unauthorized modifications may cause malfunctions which can lead to accidents or injury.
16. Only for EU countries, do not dispose of electric tools together with household wastematerial !
࣭In observance of European Directive 2002/96/EC on waste electrical and electronic equipment
and its implementation in accordance with national law, electric tools that have reached the endof their life must be collected separately and returned to an environmentally compatible recycling
facility.
17. Important information and clue about the use are listed in main body label. When
contents cannot read by contamination or by the damage of the label, please ordera new label and put it.
࣭The new label could be ordered from us(Lobtex)via distributor.
2

CAUTION
18. The production date of this product is shown brevity code below the tools.(on page5)(Example) year: 2 0 1 4 month: 8 ЍN YЎЎ
How to check manufactured dateYNⱥㄒ㸭(1*/,6+

A year/month of manufacture
An English character

$
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19. This product is a tool for exclusive use of the professional business. When you are
the one who uses this tools for the first time, please receive an instruction from theone who have already used this tools before, also please read the Instruction Manual
carefully and understand the content.
࣭Wear protective goggles or safety glasses.
࣭When this product is damaged, please do not use.
20. This product is an exclusive tool for Blind Rivet fastening two boards by riveting.
We do not design, manufacture or sell intending to other applications.
21. For the maintenance of the main body, for every 30,000 installation of the fastener orin one year.
22. Only qualified and trained operators should install, adjust or use the assembly power
tool for non-threaded mechanical fasteners.
23. Slips, trips and falls are major causes of workplace injury. Be aware of slippery surfaces
caused by use of the tool and also of trip hazards caused by the air line or hydraulichose.
24. Proceed with care in unfamiliar surroundings. There can be hidden hazards, such as
electricity or other utility lines.
࣭You may fall down and injury may result.
25. This assembly power tool is not intended for use in potentially explosive atmospheres.
26. This assembly power tool is not insulated against contact with electric power.
27. Ensure that there are no electrical cables, gas pipes, etc.,which can cause a hazard if
damaged by use of the tool.
28. If you experience numbness, tingling, pain or whitening of the skin in your fingers or
hands, stop using the assembly power tool, tell your employer and consult a physician.
29. Air under pressure can cause severe injury.
࣭Always shut off air supply, drain hose of air pressure and disconnect tool from air supply when
not in use, before changing accessories or when making repairs.
࣭Never direct air at yourself or anyone else.
30. Always check for damaged or loose hoses and fittings.
࣭Whipping hoses can cause severe injury.
31. Handle this product in a careful manner.
࣭Rough handling may cause an accident and failure of the tool. Do not throw, drop, nor give
shock to this product.
32. Do not carry nor trail this product by pulling a joint hose.
࣭It may cause a damage to the hose, a failure and an abnormal action of this product.
Then, an accident and injury may result.
33. The regular preventative maintenance shall be carried out, for instance after a specilfied
time of operation, a specified number of cycles/operations or a stated number of times
per year.
34. When you handle hydraulic oil or grease, obtain the Safety Data Sheet (SDS) from the
supplier, and follow the described instructions.
35. When disposing this tool, please follow the regulations and the rules of the country andautonomous community.
3

NOMENCLATUREⱥㄒ㸭(1*/,6+

Tank Joint

Frame Head ‘CJM’

Bleed Plug

Nosepiece

Tank Case Unit

Trigger

Vacuum Button

Grip CoverCylinder Cap

Rotary Joint(Screw size: Parallel pipe thread G1/4)

Cylinder Cup

FRAME HEAD INTERNAL PARTS
O-ring S10

O-ring P9

Jaw Case ‘CJM’
Jaw Pusher

chamferedO-ring P6

Guide Tube ‘SUS’

Jaw Pusher Spring

Ultra Jaws ‘M’
Nosepiece

Frame Head ‘CJM’

Jaw Case Head

4

TECHNICAL DATA
Model No.

R1A1㸦$㸧

Weightkg (lbs)

1.1 (2.43)

Operating air pressure

0.5 ~ 0.6 MPa (5 ~ 6 kgf/cm2, 71 ~ 85 psi.)ⱥㄒ㸭(1*/,6+

Dimensions (LengthHeightWidth) mm

297265106

Air consumption per minute

L (cu.ft.)

68 (2.4) (on the occasion of vacuum is working.)

Tool stroke

mm (inch)

19 (3/4)

Traction power at 0.59 MPakN (kgf)

9.0 (917)

Applicable rivets(rivet diameters)

ȭmm
ȭinch

2.4, 3.2, 4.0, 4.8
3/32, 1/8, 5/32, 3/16

Temperature4Υto 35ΥRelative humidity

80%RH max. (No condensation)

Pressure level (Lpa)

73 dB

Operating environmentSound
VibrationLess than equal to 2.5m/sec2

Emission value

Air intake (Rotary joint)

Size of screw G1/4 (PF1/4)

Note ‫ە‬Product specifications and design are subject to change for improvement without notice.
‫ە‬Weight and dimensions given are standard values. Actual products may differ slightly fromthe values given.
‫ە‬The warning lavel is located on the side of the main unic Cylinder Cup.
‫ە‬The production date of this product is indicated on the top surface of Cylinder Cap with brevity
code. Please refer to the page 3 how to read its brevity code.
‫ە‬The serial number of this product is indicated on the top surface of Cylinder Cap with numbers.


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

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ȭ

ȭ






AF 22mm(Display example)
NY1234
Serial number
The date of manufacture

Warning Label
ȭ

Note

Air consumption calculation method
Use the following calculation method to obtain the required air consumption, and select thecompressor accordingly.

5

Air consumption per minuteRequired air consumption
Make sure that this corresponds to the compressor discharge capacity (per minute).

PREPARATION BEFORE USE
1

Set the Tank Case Unit to the Tank Joint.

ⱥㄒ㸭(1*/,6+

WARNING‫ ە‬Always attach the tank case unit before use.
If you work without attaching the tank case unit, there is a risk that the mandrel of rivet that has been
cut is not discharged, and will be clogged inside exhaust pipe, causing a fault of the equipment.
Also, these mandrels may be ejected from the tool’s nosepiece during use and cause serious injury.

Push to fit the Tank Case Unit to the Tank Joint as shown in the figure, and turn the Tank Case
Unit to the right until it is firmly fixed.
Tank Joint

Tank Case Unit

ղ

Vacuum Buttonձ
Exhaust Port

Note ‫ ە‬When you turn the Vacuum Button ON, air comes out of the Exhaust Port on the side of theTank Case Unit.
‫ە‬The Exhaust Port can face to any of the 4 directions, so change the direction as your preference.

2

Set up the compressor, and be sure to install an air filter, air regulator and air lubricator(3-device set) between the compressor and the tool.
Air regulator

Rotary Joint
Spool Cap

Air filter

Air lubricator

Note ‫ ە‬Adjust the drip-feed amount of the air lubricator to the minimum setting.
‫ ە‬If moisture enters inside of the unit, it may freeze in cold temperature or accelerate degradationof O-rings and packings, resulting in malfunction of the unit. To avoid that, use an air dryer asnecessary in addition to an air filter, regulator and an air lubricator (3-device set).
‫ ە‬If you attach the Rotary Joint to the opposite side, remove the Spool Cap and exchange thepositions.
6

3

Use the air regulator to adjust the operating air pressure to 0.5 ~ 0.6MPa (5 ~ 6kgf/cm2,
71 ~ 87psi).

WARNINGⱥㄒ㸭(1*/,6+‫ە‬The air pressure should be kept within the range of 0.5 to 0.6 MPa (5 to 6 kgf/cm2, 71 to 87 psi).
If an air pressure which is greater than this is used, the tool may become damaged, and injury or
damage to property may result.

Note ‫ە‬If the diameter of your stainless rivet (NST, NSS) is 4.8mm(3/16"), set the air pressure toࠉ0.54 ~ 0.6 MPa (5.5 ~ 6.0 kgf/cm2, 78 ~ 87 psi).
‫ە‬If the air pressure is too high, damage to parts may occur. If the pressure is too low, somesize of the rivet may not be correctly installed (cut).

4

Replace the nosepiece and guide tube as indicated below to conform to the size of therivet being used.

Note ‫ە‬Refer to “Jaw maintenance” on page 9 for details on replacing the guide tube.
Rivet diameter

Mandrel (shaft)
Body (flange)

Rivet Dia.

Nosepiece

2.4 mm (3/32”)

2.4

3.2 mm (1/8”)

3.2

4.0 mm (5/32”)

4.0

4.8 mm (3/16”)

4.8

Guide Tube
Guide Tube 'SUS'(silver)chamfered
A Guide Tube is notnecessary for 4.0mm
and 4.8mm rivets.
Be sure to remove the
Guide Tube before use.

Note ‫ە‬Shaded areas indicate parts which are installed in the tool as standard accessories.
‫ە‬Conform the size to be used, and replace the nose piece with the corresponding one.
If you use the Nosepiece improperly, cut mandrels may not be ejected normally after fixing
and may clog inside or come up to the surface. That may also badly affect finishing of rivets.
To avoid that, be sure to use an appropriate Nosepiece.
‫ە‬Applicable rivet size is marked on the hexagon part of Nosepiece.
‫ە‬A Guide Tube is not necessary for 4.0mm and 4.8mm rivets. Be sure to remove the Guide
Tube before use.

7

OPERATING THE AIR RIVETER
Select a suitable size of rivet for the workpiece to be riveted.

2

Replace the nosepiece with one which matches the size of the rivet to be used.
(Refer to item 4 in “Preparation Before Use” on page 7.)3

Drill a hole of appropriate size (0.1 to 0.2mm larger than the diameterof the rivet) into the workpiece.

㸦1㸧Make sure that the Tank Case Unit is set, and press the Vacuum
Button fully from the "ON" marking side to start vacuuming.
㸦2㸧Insert the mandrel of rivet into the end of riveter.
Note ‫ ە‬Some rivets have mandrels with sharp ends. Be careful not to injure yourfingers on these ends.
‫ ە‬If the button is not fully pressed, vacuuming power will be lower.

4

5

After inserting the mandrel (shaft) of the rivet into the nosepiece,
insert the head of the rivet into the hole.

Lightly fit the end of riveting tool to the base material. Make sure that
there is no space in the base material and other things, and thenactivate the trigger.
Note ‫ ە‬At the time and during activation of the trigger, a small amount of air
may leak from the trigger portion. This is not a malfunction.

6

7

The rivet will be installed into the workpiece.

the trigger. The cut mandrel (shaft) will then be drawn into the tank case
8 Releaseunit.
WARNING‫ ە‬Always attach the tank case unit before use.
There is a risk that the spent mandrel will be clogged inside, causing a fault of the equipment.

Note ‫ ە‬Make sure that the cut mandrel has been completely removed before proceeding to
the next riveting.

When the tank is about half full with cut mandrels, remove theTank Case Unit by turning it to the left after stopping vacuum
function, and discard the cut mandrels collected inside.
Note ‫ ە‬If the tank becomes over half full, cut mandrels may be
obstructed by those inside the tank and may not normally becollected, causing them to be left in the ejection pathway.
That will result in clogging of cut mandrels and air leakage
from the Nosepiece making the unit to be unusable.

Tank Case Unit

9ձղ

Note 㸺Operating temperature㸼The ambient temperature for working is within the range of 4~35Υ
(39.2~95°F). Although condensation may occur on the lower part of Grip Cover depending on
the number of rivets used, and the usage environment, that does not indicate a defect.
Wipe off around the part before using the unit.
8ⱥㄒ㸭(1*/,6+1

MAINTENANCE
After long periods of use, debris from cut mandrels and other foreign materials tend to build up in various
parts of the tool, and the hydraulic oil level also drops, both of which can lead to operating problems.
The tool should be cleaned periodically.
Note ‫ە‬In case you have some trouble and failure, please refer “Troubleshooting” in the Instruction Manual.

ⱥㄒ㸭(1*/,6+

 Jaw maintenanceAlso refer to this section when replacing parts.

Note ‫ە‬If debris builds up, the jaws will not move smoothly and normal operation will not be possible.
‫ە‬The jaws should be cleaned on average once every 3,000 riveting operations.

CAUTION

DISASSEMBLY‫ە‬Before starting maintenance or disassembling the unit to replace parts, be sure to stop
air supply.
Performing maintenance or disassembly with air supplied may cause a part to jump out, oil to squirt
out, or the unit to perform unexpected behavior, and may result in an accident or personal injury.
‫ە‬Do not operate the tool with the Frame Head ‘CJM’ removed.
Items such as fingers may become caught in the mechanism.

1

Turn off the air supply.

2

Remove the Frame Head ‘CJM’using
a wrench or spanner (AF22 mm).
Loosen and remove the Jaw Case Headand Jaw Case ‘CJM’ using spanners(AF14 mm and AF15 mm) or other tools.
The following parts will be removed.

3

࣭Ultra Jaws ‘M’࣭Jaw Pusher(With two O-ring P6)
࣭Jaw Case ‘CJM’(With O-ring S10)
࣭Guide Tube ‘SUS’
࣭Jaw Pusher SpringO-ring S10
Jaw Pusher

CLEANING
RE-ASSEMBLY

O-ring P9

chamfered

Frame Head ‘CJM’

Ultra Jaws ‘M’
Jaw Case Head

Wash and clean the parts using a brushand kerosene or such other things.

Assemble the parts in reverse order of disassembly and fully
Jaw Case Headtighten the Jaw Case Head.
(Cross section)
In the end, attach the Frame Head‘CJM’.
Note ‫ە‬Apply LOBSTER lubricant oil JO-50 (separately sold: ISO VG150
containing molybdenum disulfide) to the back of Jaws or theinside of Jaw Case Head.
Apply jaw lube‫ە‬Assembling the Guide Tube will be smoother if you turn and(lubricating oil)insert the Guide Tube.
‫ە‬Be sure to assemble all of the parts and fasten the fasteningࠉsections firmly.
‫ە‬Jaw Case Head, Ultra Jaws ‘M’, Jaw Pusher, O-ring,
Jaw Case ‘CJM’, Guide Tube, and Jaw Pusher Spring
Label of reminder toare consumable items. Replace them on a regular base.
securely tighten‫ە‬Please check periodically whether there is any slack of the
Frame Head 'CJM' during work. If you work after the Frame
Head 'CJM' is loosened , damage to the parts may occur.
‫ە‬R1A1 is installed highly durable Ultra Jaws ‘M’.
ࠉBe sure to specify Ultra jaws ‘M’ as replacement parts for this model.

59

Jaw Case ‘CJM’

O-ring P6 Guide Tube ‘SUS’ Jaw Pusher Spring

Nosepiece4

Jaw Case Head
(AF 14mm)
Jaw Case ‘CJM’
Frame Head ‘CJM’(AF 15mm)

 Replacement of the Nosepiece
Note ‫ە‬If the Nosepiece is damaged, replace it with a new one.
‫ە‬If you change the rivet size, replace with an applicable Nosepiece.

CAUTIONⱥㄒ㸭(1*/,6+‫ە‬Before starting maintenance or disassembling the unit to replace parts, be sure to stop air
supply.
Performing maintenance or disassembly with air supplied may cause a part to jump out, oil to squirt
out, or the unit to perform unexpected behavior, and may result in an accident or personal injury.

DISASSEMBLY

Frame Head ‘CJM’(AF 22mm)

Turn off air supply.

2

Remove the Nosepiece from the Frame
Head ‘CJM’ using a wrench or spanner.

RE-ASSEMBLY

Nosepiece(AF 10mm)

1

3

Firmly set a Nosepiece applicable to the rivet size to the Frame Head ‘CJM’.

Note ‫ە‬Please check periodically whether there is any slack of a nosepiece during work.
‫ە‬If you work after the nosepiece is loosened, damage to the parts may occur.

 Replacement of the Tank Case Sponge
Note ‫ە‬If power of vacuuming rivets becomes lower or the tank case sponge is damaged, replace witha new tank case sponge.

CAUTION

DISASSEMBLY‫ە‬Before starting maintenance or disassembling the unit to replace parts, be sure to stop air supply.
Performing maintenance or disassembly with air supplied may cause a part to jump out, oil to squirt
out, or the unit to perform unexpected behavior, and may result in an accident or personal injury.

1Turn off air supply.

2

Remove the Tank Case Unit by turning it in a counterclockwise direction.

3

Remove the Tank Case Sponge in the direction of the arrow.
Tank Case Unitձ

Cross-section viewof Tank Case Unit
Tank Case Sponge

RE-ASSEMBLY

ղ4Assemble the tank case sponge and Tank Case Unit in reverse order of disassembly.

Note ‫ە‬Tank case sponge is a consumable item. Replace it on a regular base.
10

CAUTION

8

ⱥㄒ㸭(1*/,6+‫ە‬Avoid skin contact with substances such as hydraulic oil, lubricating oil and grease.
Such substances may cause inflammation of the skin. If they come into contact with your skin,wash the affected area thoroughly.
‫ە‬Maintain the tool with due care.
Refer to the Instruction Manual for details on replacing parts and attachments, otherwise injury may
occur.

Apply grease to the O-Ring and rod of Air Piston Unit and to the inside of Cylinder
Cup using brush.
Apply grease
Apply grease
Air Piston Unit
Cylinder Cup

Note ‫ە‬Before assembling, be sure to apply lubricant such as grease to each sliding section.
‫ە‬Recommended grease is GreaseJUDGH 1~2.

9

Air Piston Unit

Push and insert the Air Piston Unit into the oil supply
port and manually perform a piston motion for several
times. Wipe off hydraulic oil spilling out of the oil
supply port.

Oil supply port

RE-ASSEMBLY

the Cylinder Cup on the Air Piston Unit, and
10 Attachkeeping pressing it down tighten the 4 hex socket

O-ringscrews.

Cylinder Cup

O-ring SS9.5

Hex key wrench(AF 4mm)Hex socket screw(x4)

Note ‫ە‬Assemble in reverse order of disassembly.
‫ە‬Make sure the O-ring SS9.5 is surely set in the counterbore.

assembled Frame Head with Frame A, turn the unit
11 Afteras the Bleed Plug (hex socket bolt) comes to the upper side.

Bleed Plug

Then, loosen it using a hex key wrench (AF 4mm) in order tolet excessive hydraulic oil and air (bubble) out.
After making sure that hydraulic oil no longer comes out,tighten the Bleed Plug again.

Hex key
wrench(AF 4mm)

Note ‫ە‬Note that hydraulic oil may squirt out when you loosen theࠉBleed Plug.
‫ە‬The work should be done by necessity after feeding hydraulicoil. Otherwise there may be detrimental to the tool in loading
rivet or breakage of Frame.

12 Wipe off hydraulic oil adhering to the main body or spilling out before use.
Note ‫ە‬During disassembly/assembly, be careful to prevent cutting dusts of metal andother objects from getting into the hydraulic oil and Air Cylinder.

12 Cleaning and Oil Supply of Air Valve
Note ‫ە‬If the Air Valve is clogged with cut swarf, it has adverse influence on smooth operation anddurability.

CAUTIONⱥㄒ㸭(1*/,6+‫ ە‬Before starting maintenance or disassembling the unit to replace parts, be sure to stop air
supply.
Performing maintenance or disassembly with air supplied may cause a part to jump out, oil to squirt
out, or the unit to perform unexpected behavior, and may result in an accident or personal injury.
‫ ە‬Avoid skin contact with substances such as hydraulic oil, lubricating oil and grease.
Such substances may cause inflammation of the skin. If they come into contact with your skin, wash
the affected area thoroughly.

1Turn off the air supply.

2

Remove cross recessed pan head screws (2 pieces) and tapping screws (3 pieces)on the side of the Grip Cover by using a Phillips screwdriver.

3

Remove the Grip Cover, Trigger, Switch, and Silencer Sponge in this sequence.
SwitchDISASSEMBLY

Grip CoverTapping screw(x3)

Trigger

Cross recessed panhead screw(x2)

SilencerSpongeWhile moving the Urethane Tube forward by pushing it with a finger, remove the Air
Valve Head Lock Plate by using pliers, etc.
Note ‫ە‬Also, if the Air Valve Head Lock Plate is mounted in the direction opposite to that in the
figure below, push the tube to move it aside in the same manner, and remove the plateby using pliers, etc.
Urethane Tubeձ
Air Valve Head Lock Plate
ղ
Plier

4

Air Valve HeadLock Plate

5

Remove the Air Valve Head, and pass a wire that has been bent like a hookthrough the exhaust port to raise the Air Valve to remove it.

Note ‫ە‬When removing the Air Valve, be careful not to damage the O-ring with the wire.
Air Valve Head

Air Valve
Exhaust port

RE-ASSEMBLY

Wire

13

6

Apply grease to the O-ring of
the Air Valve.

Apply grease

Note ‫ە‬Recommended grease is Grease grade 1~2.

Air Valve

7

Attach the Air Valve and the Air Valve Head, and mount the Air Valve HeadLock Plate to the body by pinching it with pliers, etc.

Note ‫ە‬Push the Air Valve Head securely to the end.
‫ە‬When mounting the Air Valve Head Lock Plate, move the Urethane Tube aside bypushing it with a finger.

RE-ASSEMBLY

Plier

8

ⱥㄒ㸭(1*/,6+

Air Valve HeadLock Plate

Mount the parts to the frame by following the procedure of 3 in reverse, and tighten the
cross recessed pan head screws and the tapping screws by using a Phillips screwdriver.

Note ‫ە‬Attach the Grip Cover with the Silencer Sponge around the body.
Exhaust port
Silencer Sponge

Grip Cover
SwitchTrigger
SilencerSpongeSilencer Sponge
Tapping screw(x3)

Cross recessed panhead screw(x2)

6 Cleaning the Mandrel Shutter section
Note ‫ە‬If the Mandrel Shutter is clogged with cut swarf, the mandrel cannot be discharged.

CAUTION

DISASSEMBLY‫ ە‬Before starting maintenance or disassembling the unit to replace parts, be sure to stop air
supply.
Performing maintenance or disassembly with air supplied may cause a part to jump out, oil to squirt
out, or the unit to perform unexpected behavior, and may result in an accident or personal injury.
‫ ە‬Avoid skin contact with substances such as hydraulic oil, lubricating oil and grease.
Such substances may cause inflammation of the skin. If they come into contact with your skin, wash
the affected area thoroughly.

1Turn off the air supply.

2

Remove the Tank Case Unit by turning it ina counterclockwise direction.

ձղ
14

DISASSEMBLY
CLEANING

ⱥㄒ㸭(1*/,6+3

Remove two hex socket bolts in the Tank Joint by usinga hex key wrench (AF 2.5mm).

4

Remove the Tank Joint, Outer shaft of frame cap, Helical torsion spring of shutter,
Shutter Unit, Shutter Lever in this sequence.
Shutter Unit

Frame Cap ‘A’

Outer shaft of frame cap

Hex key wrench(AF 2.5mm)
Helical Torsion Spring of Shutter

Tank Joint

5

Clean each part using a wast cloth and brush.

6

Apply grease to sliding part of Frame
Cap ‘A’.

Note ‫ ە‬Recommended grease isGrease grade 1~2.
‫ە‬Apply one drop of grease.
ࠉIf applied ample amounts,
ࠉ it may cause swarf to beࠉ clogged to the Mandrel Shutter.

7

RE-ASSEMBLY

Shutter Lever

Hex socket bolt
(x2)

Apply grease

Frame Cap ‘A’(Sectional View)
Frame Cap ‘A’

Attach the parts to the Frame Cap ‘A’ by following the sequence of 4 in reverse.

Note ‫ە‬With the Ball Chain attached to the Shutter Lever, push the Shutter Lever into themounting hole.
Shutter Lever
Ball Chain
Shutter Unit
Helical torsion springof shutter
Shutter Lever
Frame Cap ‘A’
Outer shaft of frame cap

Tank Joint
Shutter Body

Frame Cap ‘A’

8Note ‫ە‬Attach the Shutter Unit andthe Helical torsion spring of
shutter to the Frame Cap ‘A’
as shown left.

Tighten two hex socket bolts in the Tank Joint

Note ‫ە‬Make sure to push down the Shutter Lever and check whether it will come back tooriginal position.
Hex socket bolt(x2)
Hex key wrench(AF 2.5mm)
15Shutter Lever
Tank JointTROUBLESHOOTING

TroubleCauseⱥㄒ㸭(1*/,6+

If a problem occurs, check the followings. If the problem persists after checking the items in the tablebelow, contact your nearest “LOBSTER” dealer or direct to us.
In making any enquiries about this product or requests for repair work, first check the troubleshooting items below, and then make a note of the model number, the usage conditions and thetrouble symptoms in as much detail as possible. If you can provide this kind of information, it
will contribute to reducing the amount of time required for delivery or repairs to be completed.
Countermeasure

1 Wrong type of Nosepiece or Guide
Tube.

Replace with the correct part whichmatches the rivet size.
(Refer to pages 7 and 10.)2 Nosepiece or Frame Head ‘CJM’ is
Use a spanner or similar to tighten
securely.
loose.
3 Jaw Case is incorrectly assembled. Check the assembly procedure of parts
inside the Jaw Case. (Refer to page 9.)
4 Contact surface between Jaws and Clean the Jaws and the inside of Jaw
Jaw Case ‘Head’ are not smooth.
Case Head, and apply “LOBSTER” brand(friction).
lubricant oil to the back of Jaws.
(Refer to page 9.)
5 The inside of the Cylinder Cup is dirty Clean inside the Cylinder Cup, and apply
so that the Air Piston cannot return to grease inside the cylinder and to theits proper position.
O-ring. (Refer to pages 11 and 12.)
6 Oil filling was not performed correctly, Loosen the Bleed Plug to allow theso that there is excess hydraulic oil
excess hydraulic oil to drain out. (Refer toinside the tool.
pages 11 and 12.)7 Mandrels clog up the Jaw Pusher or Eliminate the mandrels clogging in the
Jaw Case or the Guide Tube.
the Guide Tube.
(Refer to page 9.)
1 The rivet length is not correct for the Use rivet which match the workpiece
Number of triggers
thickness.
workpiece thickness.
operations increases
2 Compressor air pressure is incorrect. Check the air pressure.
before riveting iscomplete.
Check the assembly procedure of parts
3 Jaw Case is incorrectly assembled.
Rivet can not be
inside the Jaw Case. (Refer to page 9.)pulled.
Replace the Jaws. (Refer to page 9.)
4 Jaws are worn.
Add hydraulic oil. (Refer to pages 11
5 Insufficient hydraulic oil, causing ashorter stroke.
and 12.)
1 Insufficient and excess pressure of Adjust to obtain an appropriate pressure of
Piston does not
supplied air.
supplied air. (Refer to page 6.)
operate, or returns
very slowly, or
2 Malfunction of Air Piston due to dirt or Clean inside the Cylinder Cup andoperation is notoil shortage inside the Cylinder Cup. apply grease to the inner surface andsmooth.
the O-ring. (Refer to pages 11 and 12.)Press the Vacuum Button fully from the
1 The Vacuum Button is not fully
The suction powerpressed.
"ON" side.
is weak and the cut
2 Too many cut mandrels in the tank. Remove the Tank Case Unit andmandrels (shafts)
discard the cut mandrels.
cannot be drawnࠉout.
3 Cut mandrels clog in the Guide Tube. Remove the Guide Tube and discard
the cut mandrels. (Refer to page 9.)
4 The Tank Case Sponge is clogging. Clean or replace the Tank Case Sponge.
(Refer to page 10.)5 The Guide Tube is not applicable to Replace with a Guide Tube applicable tothe size of rivet used.
the rivet used. Remove the Guide Tubeif your rivet size is ȭ4.0 orȭ4.8.
(Refer to pages 7 and 9.)

The rivet does not
go in, or the cut
mandrel does notcome out after
riveting.

16ⱥㄒ㸭(1*/,6+

STORAGE‫ە‬Store in a place which is well-ventilated and free from excessive dust and humidity, and where there
is no danger that the tool will fall.
‫ە‬If not using the tool for an extended period of time, carry out a maintenance inspection before storing
it away. (Refer to “Maintenance” on pages 9 ~ 15.)
‫ە‬To increase the working life of the tool, it is recommended that you give it periodic overhauls.
ࠉContact the place of purchase or your nearest “LOBSTER” dealer for any overhauls and repair workࠉrequired. (A charge will be made for this service.)
HYDRAULIC OIL REQUIREMENTS
Use only clean hydraulic oil, as the viscosity of the oil used will affect tool performance.
“LOBSTER” brand Hydraulic Oil is supplied in a plastic filler bottle with the tool, and can also be obtained
from your “LOBSTER” dealer or agent in your town. If this is not possible, a good quality mineral oil withthe following properties should also be used.
Viscosity ISOࠉࠉ: VG46
Viscosity Indexࠉࠉ: 113
Viscosity at 40 Υࠉ: 46 c.s.t.
Viscosity at 100 Υࠉ: 7.06 c.s.t.
Flash Pointࠉࠉࠉ: 228

RECOMMENDED OILS are:Shell Tellus No. 46
Esso Teresso No. 46
Mobil D.T.E. 25 Oil (Medium)

ORDERING PARTS
Indicate the tool model, part name, code no. and quantity as shown below when ordering.
ModelPart Name

Code No.

Qty.

R1A1

Ultra Jaws (pair) ‘M’

10281

1

R1A1

Frame Head ‘CJM’

64055

1

Note ‫ە‬When parts are modified for improvement, the older parts are kept in stock for a period of five
years.

19

LOBSTER WARRANTS THAT GOODS COVERED BY THISMANUAL WILL CONFORM TO APPLICABLE SPECIFICATIONSAND DRAWINGS AND THAT SUCH GOODS WILL BE
MANUFACTURED AND INSPECTED ACCORDING TO GENERALLYACCEPTED PRACTICES OF COMPANIES MANUFACTURING
INDUSTRIAL TOOLS. THERE ARE NO WARRANTIES WHICH
EXTEND BEYOND THE FOREGOING.
THE LIABILITY OF LOBSTER ON PARTS FOUND TO BE
DEFECTIVE IS LIMITED TO RE-WORK OR THE REPLACEMENTOF SUCH GOODS AND IN NO CASE TO EXCEED THE INVOICEVALUE OF THE SAID GOODS. UNDER NO CIRCUMSTANCESWILL LOBSTER BE LIABLE FOR DAMAGES OR COSTSINCURRED BY THE BUYER OR SUBSEQUENT USER IN REPAIRING OR REPLACING DEFECTIVE GOODS.
ROUTINE MAINTENANCE AND REPAIR OF LOBSTER RIVETTOOLS CAN BE PERFORMED BY AN AVERAGE MECHANIC.
HOWEVER, IF YOU HAVE A LOBSTER RIVET TOOL THAT IS IN
NEED OF MAJOR REPAIR WE RECOMMEND THAT IT BE SENTDIRECTLY TO US POSTAGE PAID FOR SERVICE AT A
REASONABLE CHARGES.

MANUFACTUREROSAKA, JAPANⱥㄒ㸭(1*/,6+

WARRANTY & SERVICEMEMO͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐͐
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