50/60Hz

REX Band Saw

0A
XB125 120A Operation Manual
XB125・120A
・

XB125

XB120A（Chain Vice）（Flat Vice）

Be sure to read this manual
before using the machine.
Be sure to give this Operation Manual
to the user.
To ensure safe and effective use,
read this Operation Manual carefully
before use.
Keep this manual handy so the user
can refer to it when necessary.

Date of Purchase:
Sales Agent:

Year

Month

Thank you very much for purchasing a REX MANTIS Series Band Saw.
The contents of this manual apply to both the XB125 (Chain Vice) and the XB120A(Flat Vice). However, some operations differ and you should therefore refer to thediagram below and follow the instructions acording to the model you purchased.

XB125（Chain Vice）
Chain Vice

XB120A（Flat Vice）
Flat Vice

For the XB125,readthose sections withthis symbol.

For the XB120A, readthose sections withthis symbol.

1. Transportation & Setting up
2. Unlocking the Frame
Setting Up

3. Power Supply
4. Changing the Blade
5. Preliminary Inspection

Before Cutting

1. Adjusting the Cutting Load
2. Clamping the Workpiece

2. Clamping the Workpiece

1. Cutting
2. What to do if the blade slips
Cutting

3. What to do if the motor stops

4. Removing the Workpiece

4. Removing the Workpiece

5. Finishing off

5. Finishing off

・To prevent fire and electric shock or other injury, be sure to observe the Safety Considerations on pages 1 - 2.
・Before use, read all Safety Considerations carefully and follow the instructions given.
・Do not use the machine for purposes other than those noted in this Operation Manual.

CONTENTS
Safety Considerations..............................................................................................
.............................................................
Precautions when using the Mantis 125.............
Names of Parts, Standard Specifications and Standard Accessories........................................................................
Types of Blades (Optional extras)................................................................
Selecting the Cutting Load and Blade
Using the machine ..................................................................................................
Getting Ready
1. Transport and Setting up....................................................................
2. Unlocking the Frame...........................................................................
3. Power Supply........................................................................................
4. Changing the Blade.............................................................................
5. Preliminary Inspection........................................................................
Preparing for Cutting
1. Adjusting the Cutting Load................................................................
2. Clamping the Workpiece...................................................................
Cutting
1. Cutting ..........................................................................................................
2. What to do if the blade slips......................................................................
3. What to do if the motor stops....................................................................
4. Removing the workpiece...........................................................................
5. Finishing off ...................................................................................................
Other Applications
1. Contour Cutting ........................................................................................
Maintenance..................................................
1. Adjusting the angle of the "SELI" head
2. Maintenance of Parts .................................................................................
Servicing and Repair ...........................................................................................
Troubleshooting .....................................................................................................
Definitions of

1
3
4
5
5
5
6
6
7
8
9
10
10
12
12
13
13
14
15
16
17
17
18

！ WARNING and ！ CAUTION

In this operation manual, warnings are divided into ！ WARNING and ！ CAUTION .
！ WARNING : indicates actions which could possibily result in death or severe injury to the user
if the machine is used incorrectly.
！ CAUTION : indicates actions which could possibly result in injury to the user, or physicaldamage, if the machine is used incorrectly.
Even items labelled ！ CAUTIONcould have serious results under certain conditions.
Be sure to observe these warnings carefully as they greatly affect safety.
- If this operation manual is lost or damaged, promptly order a replacement from your distributor or our sales
department.
- Parts and specifications are subject to change without prior notice, due to improvements in quality,
performance or safety standards. In such cases, the contents, photographs, illustrations, etc. in thismanual may be different to the product you have purchased.

Safety Considerations
WARNING(1) Make sure the voltage is correct.
Be sure to use the rated voltage displayed on the label on the unit or in the Operation Manual. Using other voltages
may produce heat, smoke or fire.

(2) Check to make sure the ON/OFF switch is in the "OFF" position before plugging in the unit.
Plugging in the unit with the ON/OFF switch in the "ON" position will cause the unit to begin operating unexpectedly,
possibly resulting in accident or injury. Always check to make sure that the ON/OFF switch is in the "OFF" position
before plugging in the unit.

(3) Be careful of electrical shock.
Do not touch the plug with wet hands.
Do not use the unit in the rain or in other situations in which water may get inside the machine.
Be sure to ground the unit. Failure to do so may result in electric shock.

(4) Check to make sure the workplace is safe.
Do not use this product in the rain or in humid or wet locations, or in any other situation in which water may get
inside the unit. Exposure to humidity may also degrade the motor insulation and lead to electrical shock.
Do not use this product near gasoline, paint thinner or other flammable liquids or gases. Failure to observe thisprecaution may result in fire or explosion.

(5) Use only the recommended accessories and attachments.
Do not use accessories and attachments other than the recommended ones listed in the Operation Manual and
REX catalogues as doing so may result in accident or injury.

(6) In the event of any of the following, turn the ON/OFF switch to the "OFF" position
and unplug the unit.
When the unit is not in use, or when replacing parts, performing repairs, cleaning or inspection.
When changing accessories.
In other potentially dangerous situations (including a power outage)
If the unit is left plugged in, it may operate unexpectedly, leading to accident or injury.

(7) Turn the unit off in the event of any abnormality.
Turn off the unit immediately if it seems to be operating strangely or vibrates, or if you detect an unusual noise or odor.
Use the table in the "Troubleshooting" section of this manual to determine the cause of the problem and then takethe appropriate action. Continuing to use the unit when it is operating abnormally may result in heat, smoke or fire
and may lead to accident or injury.
In the event that the unit heats up or produces smoke, do not attempt to disassemble it yourself. Have it inspected
and repaired by an authorized repair technician.

(8) Maintain safety by keeping the workplace neat and clean.
Make every effort to keep the workbench and work area neat and clean, and make sure the area is well lit.
A messy work areaand workbench may lead to accidents.

(9) Keep unauthorized personnel away from the work area.
Do not allow unauthorized personnel to touch the unit or cord, or operate the machine.
Make sure only authorized work personnel are allowed to enter the work area. Be particularly careful of children
entering the area during work operations. Failure to observe these precautions may result in injury.

(10) Use the tool properly.
Do not use this tool for anything other than its intended purpose. Using it for other purposes, or for jobs that exceed
its capacity , may result in damage to the tool and/or accident or injury.
Do not use the tool for operations beyond its capacity that may cause the motor to lock. This may result in smoke or fire.

(11) Wear proper clothing.
Do not wear neckties, clothing with open sleeves, baggy clothing or necklaces or other accessories when operating the unit.
Fasten all buttons, zip fasteners etc. on your clothing before beginning any operation. Failure to observe theseprecautions may result in clothing getting caught in the unit's moving parts, resulting in accident and serious injury.
When working outdoors, the use of rubber gloves and slip-proof footwear is recommended.
Wearing slippery gloves and footwear may result in injury.
Put long hair inside a cap or hair cover. Do not wear a muffler, etc. during work operations. Long hair, mufflers andthe like may get caught in the unit's moving parts, leading to accident and serious injury
Depending on the work environment, it may also be necessary to wear a safety helmet and work boots.

-1-

Safety Considerations
WARNING(12) Work in a safe place and in a stable position.
Always keep both feet firmly on the ground and be sure to maintain a proper balance while working.
Failure to do so may result in falling over and injuring yourself.

(13) Be sure to remove wrenches and other tools.
Before turning on the unit, check to make sure that all tools used for inspection and adjustment have been removed.
Operating the unit with tools still attached may result in accident or injury.

(14) Exercise proper caution during use.
Operate the unit carefully and pay careful attention to handling methods, operating methods, your surroundings
and so on. Failure to exercise proper caution during operation may result in accident or injury.
Do not operate the unit if you are tired, if you are sick and taking medications, if you have consumed alcoholic
beverages, or if for any other reason you are unable to concentrate on operating the unit properly.
Failure to observe this precaution may result in accident or injury.

(15) Treat the cord with respect.
Never carry the unit by its cord or pull on the cord to remove it from the outlet.
Keep the cord away from hot items, oil and grease, blades and sharp corners.
Plug in the cord at an appropriate location, making sure that the cord will not be stepped on, will not becomecaught on anything, and will not be subjected to excessive force and damaged.
Failure to observe these precautions may cause electric shock or short-circuit resulting in fire.

(16) Maintain the unit with care on a regular basis.
When replacing accessories and parts, do so in accordance with the instructions in the Operation Manual.
Inspect the power cord and plug regularly.
In the event of damage, request repair from your dealer or a REX sales office.
Failure to observe this precaution may cause electric shock or short-circuit resulting in fire.
When using an extension cord, inspect it regularly and replace it in the event of damage.
When using the unit outdoors, use an extension cord designed for outdoor use.
Failure to observe this precaution may cause electric shock or short-circuit resulting in fire.
Keep the handles clean and dry, and do not get oil or grease on them, as this may cause it to slip, resulting in injury.

(17) Inspect the unit to make sure none of the parts is damaged.
Prior to use, inspect the unit carefully to make sure that protective covers and other parts are not damaged, andcheck to make sure that it operates properly and performs the prescribed functions.
Check for proper positioning and tightening of moving parts, the presence of damaged parts, correct installation,
and all other points that may affect operation.
Do not use the unit if the cord or plug is damaged. Failure to observe this precaution may cause electric shock or
short-circuit resulting in fire.
Do not use the unit if it cannot be turned on and off using the ON/OFF switch.
Follow the instructions in the Operation Manual for repair or replacement of damaged protective covers or otherparts.
If such operations are not specified in the Operation Manual, ask your dealer or a REX sales office to repair or
replace the affected parts.

(18) Store the unit properly when not in use.
This product should be stored in a dry place that can be locked and is out of the reach of children.

(19) Always have the unit disassembled and repaired at an authorized service center.
REX products are designed to meet applicable safety standards. Do not attempt to modify the machine yourself.
Always have the unit repaired by your dealer or a REX sales office.
If this product is repaired by a person who does not have the proper knowledge or technical skill to do so,
the product may not operate properly, or accident or injury may result.

-2-

Precautions
WARNING(1) Keep away from the blade when it is rotating.
Even after the unit has been turned off, the blade will continue to turn due to inertia. NEVER TOUCH THE BLADE OR
MOVING PARTS WHILE THEY ARE IN MOTION. You may get caught in the mechanism, resulting in accident or serious injury.

(2) Do not wear gloves while operating the unit.
If gloves are worn during the cutting operation, they may become caught in the moving parts, leading to accident
or injury. Avoid wearing gloves while operating the unit.

(3) Do not touch the workpiece or blade with bare hands immediately after it has been cut.
Immediately after the cutting process, the workpiece and blade will be very hot. You may be burned if you touchthem with bare hands.

(4) Turn off the unit immediately in the event of an abnormality.
Turn off the unit immediately and unplug it if it starts acting strangely, or if you notice any other abnormality during operation.

(5) Make sure the frame cover is in place.
To ensure safety during the cutting operation, always make sure the frame cover is in place when cutting. If theframe cover is not in place, you may get caught in the blade or rotating parts, leading to accident or serious injury.

(6) Install the unit on level ground and in a stable position.
Avoid installing the unit on an incline. Always install it on level ground. Failure to observe this precaution may resultin the unit toppling during operation, resulting in accident or injury.
Be particularly careful of the unit toppling over when performing contour cutting.
Check to make sure the frame will not topple forward.

(7) Check to make sure the unit is turned OFF before changing the blade or clamping the workpiece.
Particularly when changing the blade, set the ON/OFF switch to the "OFF" position and unplug the unit before changing the blade.

(8) Make sure the frame does not drop down unexpectedly.
Make sure the frame does not drop down unexpectedly, as this may damage the blade.

(9) Do not subject the unit to violent shocks.
This product contains precision parts that may be damaged if the unit is dropped, hit or otherwise subjected to shock.
Be particularly careful not to drop the unit during transport. This may result in damage to the machine or injury
if it should land on your foot, etc.

(10) Make sure that the voltage is correct.
Be sure to use a power supply with the proper voltage shown on the label. Using a power supply of a different
voltage may not only damage the motor but could also lead to injury.

(11) Clamp the workpiece securely.
If the workpiece is not fastened securely in place, it may move during the cutting process. This may cause the tool tovibrate or place excessive stress on the blade, resulting in breakage.
When cutting several workplaces at the same time, check to make sure that none of them move before beginning the cutting process.

(12) Use a blade of the recommended type that matches the material to be cut.
Select a blade that is appropriate for the material to be cut.
Use only the recommended blades.

(13) Use a cutting load setting that matches the workpiece.
Do not use a load setting that is too high or press the frame against the workpiece while cutting.
This may cause slanted cutting or result in blade chipping / breakage, or the motor locking or the like.

(14) Make sure the blade is attached securely.
If the blade is not attached securely, it may come off during the cutting operation, resulting in accident or injury.

(15) Wipe off any oil from the blade or workpiece before cutting.
Before shipment from the factory, blades are coated with oil to prevent rust. Be sure to wipe away the oil before
attaching blades. Failure to do so may cause the blade to slip or come loose.
If there is any oil on the workpiece, be sure to wipe it off as well.
Do not apply cutting oil or the like to the blade during use.

-3-

Names of Parts, Specifications, Standard Accessories
・Names of Parts

Tension lever
Guide roller

Handle"SELI" head

Frame cover
Rear handle

Cover lock
Chain handle

Blade
Caster

Chain lock knob
Switch

INTERIOR OF
FRAME COVER

Base
Reset button (overload protection)

XB125 (Chain Vice)

Motor

REAR
Plate A
Plate B
Vice Knob
Frame lock knob
Load adjustment knob

XB120A (Flat Vice)

Fig. 1

・Standard Specifications and Standard Accessories
Model

XB125

XB120A

Vice type

Chain Vice

Flat Vice

Cutting
capacity

Pipes
Round bar

(Soft steel bar)

φ125mm□100mm

φ120mm

φ60mm

φ60mm

45°

φ50mm

Power

Single-phase alternating current 220V （50/60Hz）

Motor

Split-phase induction motor 200W （Output）

Pully rotation

70 rpm （50Hz）, 84 rpm （60Hz）

Unit size (mm)

780(L) × 340(W) × 335(H) mm

Weight□105mm

33kg

□50mm

35kg

Blade for high-speed band saw （14-tooth; Product No.475312）: 1
Standard accessories
Hex key wrench (5mm）: 1

Socket wrench (17mm）: 1
Hex key wrench (5mm）: 1
Table 1- 4 -Types of Blades (Optional extras)
Be sure to use only recommended blades.
Suitable for cutting
StainlessSteel(teeth / inch) Steel pipe
steel pipe
No. of teeth

Material

Code no.

Conduit

14

≧ 15A

-

Wall thickness≧ 6 mm-475303

18

≧

6A

-

Wall thickness≧ 4 mmThick steel

47531214≧ 15A

Wall thickness Wall thickness≧ 4 mm≧ 6 mm

-

18

≧

6A

Wall thickness Wall thickness≧ 2 mm≧ 4 mmThick steel-

Wall thickness Wall thickness≦ 2 mm≦ 2 mmThin steel

475302Alloy

High-speed
steel(Bimetal)

47531324475314

No. ofbladesincluded
105

Table 2

Selecting the Cutting Load and Blade
Use the table below to select the blade and cutting load that are appropriate for the type,
diameter, wall thickness etc. of the material to be cut.
Alloy
18-toothHigh-speed steel
18-tooth
24-toothMaterial

Diameter/ Wall thickness

L

L

L

L

Steel pipe

≦ 1"
1¼" - 2"

M

M

M

M

2½" - 4"H

H

Stainlesssteel

Schedule 40
Thin wall stainlesssteel (SU pipe)

14-toothH

H

8A - 25A

L

L

32A - 50AM

M

65A - 100A

H

H
LL

13Su - 50Su
LL

60Su - 125Su

Resin pipe(Vinyl chloride pipe/Polyethylene pipe)
Thick steel
ConduitThin steel

LL

Cast-iron pipe

H

Steel
(Thickness)

Sectionsteel
Round bar

14-tooth

LL

LL

LL

LL

M

M

L

L

L

H
LL

≧ 1.9mm
2 - 3.4mm

MM

3.5 - 49mm

M

M

≧ 5mm

H

≧ 15mmM

16 - 60mm

H

H
M

M

M

H

LL = ultra-light load L = light load M = medium load H = heavy load

Table 3

Notes:
・The figures in the table are examples only. Select the blade and cutting load to match the actual material to be cut.
・When selecting the proper number of teeth in the blade, use the following guideline: thickness of material = 2 teeth.
・Depending on their composition or hardness, some materials are not applicable to the above table.

Use・Cutting various mild steel materials such as a steel pipes, steel bars, etc.

Note: Do not use to cut hard materials such as quenched steel etc. or the blade will become extremely worn.

・Cutting stainless steel and resin pipes.

Note: Do not use heat-sensitive plastic materials. The heat generated when cutting may melt such materials,
which may clog the blade and cause the motor to burn.

-5-

Getting ready1. Transport and Installation (Figs. 2 & 3)
HandleWARNING
Be particularly careful not to drop the unit during transport.
This may result in damage to the machine or injury if it should
land on your foot, etc.

Transcport(1) The frame is locked before the product is packed. Hold up
the handle. The casters will contact the ground, allowing
you to roll the unit along the ground. (Fig. 2)
CasterFig. 2(2) When moving the unit by carrying it, lift it from both thefront and rear handles. DO NOT TRY TO LIFT IT BY YOUR
SELF. The unit should always be carried by two or more
people. (Fig. 3)

Rear handle

HandleSetting up(1) Place the unit on level ground.

CAUTION
Place the unit on level ground and in a stable position. If it isplaced on an incline, it may topple during operation, resulting
in accident or injury.

Fig. 3

2. Unlocking the Frame (Figs. 4 & 5)
(1) Pull the frame lock knob on the bottom left hand sideof the motor and, at the same time, turn it 90°either
clockwise or counterclockwise. (Fig. 4)(2) When the frame lock knob is protruding, the frame isunlocked. When transporting the unit, use the sameprocess in reverse to lock the frame prior to transport.

Turn 90°
clockwise orcounterclockwise

Frame lock knob
Fig. 4● Frame lock status
Frame lock knob
CollarWARNING
Frame Lock Precautions (Fig. 5)
When the frame is locked, check to make sure that the frame
lock knob is tightly against the end of the collar. If there is a
gap and the lock pin is not completely inserted into the hole,the unit may become unlocked during transport, resulting in
accident or injury.

-6-

Check to make sure knob is tightly
against collar with no gaps

Fig. 5

Getting ready
3. Power Supply (Fig. 6)
Use a 220V AC power supply. Also check the following:

Pins

Plug

Leakage breaker
To prevent electric shock, check to make sure that the power
supply connected to the unit is equipped with a leakage
breaker as specified by local regulations governing standards
for electrical equipment, workers safety, etc.

Earth

GroundingFig. 6

Be sure to ground the unit prior to use.
To ensure safety, be sure to ground the unit even if thepower supply is equipped with a leakage breaker.

WARNING
NEVER GROUND THE UNIT BY CONNECTING IT TO A GAS PIPE.
This may result in an explosion.

Before grounding, check the plug to make sure there are noabnormalities. Use a tester, insulation resistance tester or the
like to check for current between the plug and the metal partof the unit base.
Always follow local laws and regulations relating to earth
leakage breakers and grounding.

When using an extension cord
When the power outlet is at distance and an extension cord
must be used, use one of sufficient thickness that is as short
as possible.
If the power supply is not equipped with a leakage breaker,
be sure to use a 3-wire cabtyre cable with one ground wirethat can be grounded.

WARNINGBe sure to use an extension cord that is not damaged.

-7-

Getting ready4. Changing the Blade (Figs. 7 ~ 12)
Check to make sure the blade matches the material to be cut (see Page 5). If it does not, replace the blade.

WARNING・Be sure to unplug the unit from the power supply before changing the blade. If the unit is left plugged in,it may start up unexpectedly, leading to injury.
・Do not touch the blade directly with bare hands. This may result in injury. When changing the blade,wear gloves and protective goggles.

When attaching new blades(1) To prevent the blade from slipping, wipe away all rustproofing oil from the blade before attaching the blade.
Also wipe away any oil sticking to the pulley and bearings.
(2) New blades tend to be chipped easily or make slanted cuts, so be sure to perform trial cutting.
Trial cutting: set the load to Light (L) and make one or two cuts in a gas pipe measuring 50A or larger.

Frame cover

Removing the frame cover(1) Open the frame and release the two coverlocks on the bottom of the frame. (Fig. 7)(2) Hold the frame cover and slide it upward
to remove. (Fig. 8)
Note : There is a hook on the top of the frame cover.
Slide it upwards to unhook it. (Fig. 9)
Hook

Cover lockFig. 7

Fig. 9Fig. 8WARNING
When removing the frame cover, make sure the blade does not pop out unexpectedly which could result in accident or injury.
This is particularly likely to happen when replacing broken blades, so remove the frame cover slowly and carefully.

Removing the blade (Fig. 10)

Fig. 10(1) Release tension lever(1) Turn the pulley tension lever on the handle sideanti-clockwise to release the blade tension.

(2) Remove
from pulley(2) Remove the blade from the pulley.
(3) Remove the blade from the "SELI."(3) Remove
from "SELI"-8-

Getting readyAttaching the blade (Fig. 11)(4)・Attach the blade, using steps (1) through (5) in Fig. 10.
Then turn the tension lever clockwise (6) to apply tension
to the blade.
(3)

(6)

(5)

(2)

Checking the blade attachment (Fig. 12)(1)

Fig. 11Make sure blade
does not run up on
pulley flange

・Check to make sure the blade is properly attached.
・Make sure the "SELI" bearings are inserted all the way.
・Make sure the blade has not climbed up on the pulley
flange.
・By hand, turn pulley A (on the wheel side) slowly anticlockwise and check to make sure the blade does not
become misaligned or come loose.
・When blade attachment is complete, be sure to replace
the frame cover.

Make sure blade isinserted all the way tothe rear of the "SELI"
bearings

Turn the pulley by handand make sure the blade
is stable
Fig. 12

5. Preliminary Inspection (Fig. 13)(1) Insert the power plug into the outlet.
(2) With the frame open, set the ON/OFF switch on theright front section of the base to the "ON" position.
(3) Check the following :・Make sure there is no abnormal noise coming fromthe motor or moving parts.
・Make sure the blade does not become misaligned orcome loose.
・Lower the frame and make sure the switch moves tothe "OFF" position.
(4) When all of the above have been checked, remove theplug from the outlet.

(1) Connect topower outlet

WARNINGBe sure to inspect the unit with the frame cover attached. If theblade should come loose during inspection, it may fly out andstrike you in the face or otherwise lead to accident or injury.

-9-(2) Switch ON
Fig. 13

Preparing for Cutting
1. Preparing for Cutting (Fig.14)
1. Adjusting the Cutting Load (Fig. 14)
Referring to the table on Page 5, adjust the cutting load tomatch the material being cut.
(1) Lift up the frame to its highest point.
(2) Pull the load adjustment knob while turning it, and set
it to a load setting that matches the material to be cut.
(3) Slowly lower the frame.

(1) Lift(2) Pull load
adjustment knob
while turning it

Note : The frame stopper may be disengaged, so lower
the frame carefully.
LL = Ultra-light load
L = Light load
M = Medium load
H = Heavy load

Fig. 14

2. Clamping the Workpiece (Figs. 15 - 22)(2)

Chain Vice

XB125 Chain Vice

(Figs. 15〜17）

Chain handle(1) Turn the chain lock knob anti-clockwise and release thechain lock (Fig. 15)(2) Unhook the chain handle and place at the rear of thevice. (Fig. 15)(1) Chain lock knob

Fig. 15(4)(3) Place the workpiece in the V-shaped groove on the vice.
(Fig. 16)
Note: For longer workpieces place one end on a support.

(4) Pull the chain handle back over the workpiece and hookto the base of the vice (Fig. 16)
Note: If you cannot pull the chain out properly, turn the chain
lock knob anti-clockwise to release the lock.

(5) Turn the chain lock knob clockwise to tighten the chain(Fig. 17)

Chain handle(3) Place workpiece

Fig. 16(5)

CAUTION
Make sure the workpiece is clamped securely. If the workpieceis not fastened securely in place, cutting will be unstable,
resulting in damage to the machine or in accident or injury.

- 10 -

Chain lock knob

Fig. 17

Preparing for Cutting
Flat Vice

XB120A Flat Vice (Figs.18 - 22）

Plate A
Plate BHow to move Plate B（Fig.18）
Turn the vice knob anti-clockwise to release the lock.
Move the vice knob back and forth and you can quickly
move Plate B.

Vice knob

Turn torelease the lockRight angle cuts (90°)
Place the workpiece in the vice carefully aligning it with
Plate A.（Fig.19）

Fig.18

Note: Position the workpiece so that there is no abrupt change inthe thickness of the material being cut.（Fig. 20）
If there is a sudden change in the thickness of the material
while cutting, the blade may be damaged, the cut may notPlace the workpiece firmly against Plate A

be straight or the motor may lock.

Move Plate B firmly
against theworkpiece

Correct orientation for clamping workpieces

Fig. 20

Push in the vice knob and move Plate B up against theworkpiece.（Fig. 19）
Turn the vice knob clockwise and fix the workpiece
securely in position.

Lock

Note: Make sure the workpiece is flush with the base of thevice or the cut will not be straight.

Fig. 19

Socket wrench（standard accessory）
Locking bolts

Cutting at an angle (0〜45°）
Loosen the 2 bolts on Plate A with the socket wrench
supplied with the machine. (Fig. 21)
Set Plate A at the desired angle on the scale and tighten
the bolts firmly. (Fig. 22)

Fig. 21

Fasten the workpiece in the same way as making 90° cuts.

Set the desired
angle on the scaleFig. 22- 11 -

Cutting
1. Cutting (Figs. 23 - 25)(1) Insert the plug into the outlet. (Fig 23)

CAUTION
Always check to make sure that the ON / OFF switch is in the"OFF" position before plugging in the unit. If the unit is plugged
in with the switch in the "ON" position, the unit will operate
unexpectedly, possibly resulting in accident or injury.
Do not wear gloves while operating the unit. They may becomecaught in the moving parts, leading to accident or injury.

(2) Release stopper(1)Insert plug(2) Hold the handle and lift the frame to its highest point
and release the stopper. (Fig. 23)
Fig. 23(3) Set the ON/OFF switch on the front right section of
the base to the "ON" position. The blade will start turning.
(Fig. 24)

(4) When the blade has reached the proper speed of rotation,
slowly place the blade against the top of the workpiece.
(Fig. 25)

(3) Set ON/OFF switch to "ON" position

Notes:
・Do not place the blade against the top of the workpiece andthen set the ON/OFF switch to the "ON" position. This may
damage the blade or result in slanted cutting.
・Do not lower the blade on the workpiece too suddenly. This
may damage the blade or result in slanted cutting.

Fig. 24(4) Lower frame(5) From this point on, the unit will cut automatically.
When cutting is complete, the switch will shift to the"OFF" position and the motor will stop. (Fig. 25)

CAUTION
Immediately after being cut, the workpiece and blade will be very
hot. You may be burned if you touch them with bare hands.

(5) Machinestops automaticallywhen cutting is complete

2. If the Blade Slips While Cutting
・If there is oil, grease or similar on the workpiece or themachine parts (blade, pulley or bearings), the blade andpulley may slip during the cutting process and the pulley
may begin simply idling. If this happens, immediately turnthe ON/OFF switch to the "OFF" position and remove theplug from the outlet. Then use a rag to wipe the oil from theworkpiece and machine parts.
Note: Continuing to operate the unit after the blade has slipped
may burn out the rubber ring on the pulley or damage the pulley.

- 12 -

Fig. 25

Cutting
3. What to do if the motor stops (Fig.26)
・If an excessive load is applied during cutting or if theblade gets caught in the workpiece and locks, the overload
protection unit will be activated and the motor will stop.
If the overload protection unit has been activated, reset theunit as follows:(1) Set the ON/OFF switch to the "OFF" position.
(2) Eliminate the cause.
(3) Press the RESET button below the ON/OFF switch (Fig. 26).

Overload
protection unit RESET button

Note: If the motor has overheated, it may not be possible to reset
the unit immediately. In such a case, wait a few minutes and thenpress the RESET button again.

Fig. 26

Handle4. Removing the Workpiece (Figs.27 - 29)
Chain Vice

(1) Lift
frame
XB125 Chain Vice
(Fig. 27, Fig. 28)

Chain lock knob

(1) Hold the handle and lift the frame to its highest point. Check tomake sure the frame has been stopped by the stopper (Fig. 27).
(2) Turn the chain lock knob counter-clockwise to unlock the
chain (Fig. 27).
(3) Unhook the chain handle hook from the base (Fig. 28).
(4) The chain will be coiled automatically by the autocoil
mechanism (Fig. 28).
(5) Remove the workpiece (Fig. 28).

(2) Unlock

Fig. 27(5) Remove workpiece(4)(3) Remove
from hook

Fig. 28

Remove workpiece
Flat Vice

XB120A Flat Vice
(Fig. 27, Fig. 29)

・Hold the handle and raise the frame to its highest point,
making sure the stopper is engaged (Fig. 27).
・Turn the vice knob anti-clockwise and release the lock (Fig. 29).
・Pull the vice knob and remove the workpiece (Fig. 29).

Pull out vice knob

Unlock- 13 -

Fig. 29

Cutting
5. Finishing the Cutting Process (Figs.30 & 31)
Chain Vice

Chain lock knob

XB125 Chain Vice (Fig30)(1) Hook the chain handle hook onto the base and gently
turn the chain lock knob clockwise to lock the chain.
Turn gently to lock
Flat Vice

XB120A Flat Vice（Fig.31）

Fig.30Push Plate B
up against Plate A(1) Push in the vice knob until Plate B comes into contact
with Plate A, and then lightly turn the knob clockwise
to fix the plate in place.

Turn gently
to lock・Clean away any chips that have been produced during cutting.
Note : When cladding tubes, etc. have been cut, resin chips
or the like may stick to the pulley inside the frame andcause the blade to slip. Be sure to wipe away thesechips, etc.

- 14 -

Fig.31Other Uses
1. Contour Cutting (Figs. 32 - 34)
This tool can be used for contour cutting. Use the following
procedure to perform contour cutting, while observing thewarnings noted below.

Pull stopper pin andsimultaneously turn 90°

WARNING・Always perform contour cutting on level ground and in astable position. If contour cutting is done with the machine
tilted or in an unstable position, the frame may topple
during operation, resulting in accident or injury.
・Do not wear gloves while operating the unit. They may
become caught in the moving parts, leading to accident
or injury.
・Do not perform contour cutting on round workpieces.
The workpiece may turn during the cutting operation,
resulting in accident or injury.
・When performing contour cutting, make sure theworkpiece is supported securely with both ends of theworkpiece at least 10cm from the blade. If the workpieceis too close, it may get caught in the blade, resulting in
accident or injury.
(1) Pull the stopper pin ring to the left of the motor, while
simultaneously grasping the handle and lifting the frame
so it is vertical. (Figs. 32 & 33)(2) Set the ON/OFF switch to the "ON" position. The blade
will start rotating.
(3) Place the workpiece on a contour table and cut it slowly.
(Fig. 34)

Fig. 32

Stopper pin

Fig. 33

Notes:
・Cut particularly slowly when cutting inward or downward.
・When cutting downward, press the blade against theworkpiece with less force and make sure your body does
not lunge forward.
(4) When cutting is complete, immediately turn the ON/OFF
switch to the "OFF" position. If you are not going to continue
to use the unit, remove the power plug from the outlet asa fail-safe procedure.
(5) Pull the stopper pin, while simultaneously grasping thehandle and lowering the frame. This will return the unit to
the normal cutting position.
Notes:
・The blade is for straight line cutting only. It cannot be used
for curved cutting. Forcing the blade to cut in a curve
may chip it or make it able to cut only in a curve.
・Blades used for contour cutting tend to become able to cut
only in a curve. To perform normal cutting, replace the bladewith a new one.

- 15 -

Contour table
Workpiece

Fig. 34

Maintenance
WARNING・ Before inspecting the unit or carrying out maintenance work, be sure to set the ON/OFF switch to the "OFF"position, and remove the plug from the outlet. If the unit is left plugged in during inspections or maintenance,
it may start up unexpectedly, leading to injury.
・ If a problem is discovered during inspection or maintenance, check the Troubleshooting table and take theappropriate action. Continued use of the unit without correcting the problem may result in heat, smoke orfire, leading to accident or injury.

1. Adjusting the "SELI" head angle (Fig. 35)
In the event of vertical slanted cuts, the problem can be corrected by adjusting the angle ofthe "SELI" heads. Be sure to adjust both "SELI" in the same manner.
Before adjusting the "SELI" heads:
Diagonal cutting may be due to one of the causes listed below. Before adjusting the "SELI" heads,
check them and correct if necessary. (It may not be necessary to adjust the "SELI" heads.)
・ Worn blade and wear caused byblade misalignment
・ Workpiece moved during cutting

Replace blade

・ Cutting load is not adjusted properly

Adjust load to match workpiece・ Number of blade teeth does notmatch material being cut

Use a blade with a number of teeth
that matches the material being cut.

・ "SELI" bearings are worn

Replace bearings

Clamp workpiece properly(1) Remove the blade, using the procedure on Page 8.
(2) Loosen the "SELI" head fastening bolt and turn the head tomatch the slanted cut.
・ There is a reference line on the side of the "SELI" head.
Using this line as a reference, adjust the position of the"SELI" head.
・ When the "SELI" head is moved in the direction of thewhite arrow (Fig. 35), the pipe will be cut in the directionof the white arrow.
・ When the "SELI" head is moved in the direction of theblack arrow (Fig. 35), the pipe will be cut in the directionof the black arrow.
Note: In the case of a 100A pipe, moving the "SELI" head
0.5 mm from the reference line will adjust the slanted cut
approximately 1 mm. However, this is ultimately only a general
guide and will change depending on various conditions, so be
sure to conduct a test cut after adjustment.
(4) Fasten the "SELI" head fastening bolt securely.
(5) Replace the blade, using the procedure described on Page 9.
Note : When the blade has been replaced, move the adjusted"SELI" head back to the reference position before cutting.

- 16 -

Reference line
"SELI" lock bolt
Fig. 35

Maintenance
2. Maintenance of Parts (Fig. 36)
・Check the blade.

Replace blade

・Check to make sure the blade is not chipped orotherwise damaged. If it is, replace it.
・If the blade becomes worn, replace it as soon as
possible. Continued use of a worn blade may resultin slanted cutting.

・Check all bolts.
・ Make sure all bolts are fastened tightly. Tighten any
that need it.
Inspect the "SELI"・Check the power cord and plug.
・Check the power cord and plug for damage.
If the cord is damaged, replace it.

・Inspect the "SELI" heads.
・Check to make sure that both "SELI" heads areadjusted properly.
・Check to see if the "SELI" head bearings are worn.
If they are, replace them.

Inspect power cord and plug・Inspect all bolts
・Clean・Keep the unit clean.

Fig. 36

・Using a cloth or rag, periodically wipe away any chips,
dust and so on from the frame and pulley sections.
Note : Be careful not to get the motor wet.

Servicing & Repair
This unit is a precision instrument. If it fails to function properly do not try to repair it yourself. Contact your local
REX dealer, sales office or distributor.
If you have questions or need parts or other supplies, feel free to contact REX Industries Co., Ltd.

- 17 -

Troubleshooting
WARNING・If the problem you have and the appropriate remedy are not shown in the table below, do not attempt todisassemble or repair the unit yourself.
・ If the problem and remedy are not shown in the table, or if the table indicates that you should have the unit
repaired or serviced, consult your dealer or REX.
・ If this product is repaired by someone who does not have the proper knowledge or technical skill to do so, theproduct may not operate properly, or an accident or injury may occur. In the event of a problem, always checkthe table before contacting REX Industries or your dealer.

Problem

Cause

RemedyAdjust the cutting load to matchthe material being cut. (Page 5)
Blade is not installed correctly. Place blade firmly on the"SELI" heads, guide roller andpulley.
Blade is lowered too suddenly. Move blade down gently.
Blade was being used
Replace blade.
improperly or is worn.
Number of blade teeth does Use a blade that matches the
not match material being cut. material being cut.
"SELI" head bearings are
Replace bearings (have the unit
worn.
repaired or serviced).
Workpiece moved during
Make sure workpiece is
cutting.
fastened securely in the Vshaped groove.
Workpiece is not clamped
Clamp oblong workpieces
properly.
so their height is as low as
possible.
Tension lever is not set
Set tension lever firmly to theproperly.
"LOCKED" side.
Blade is not one of theUse blades of therecommended type.
recommended type.
Cutting takes a long time
Cutting load is set too light.
Set the load to match thematerial being cut (Page 5).
Number of blade teeth does Replace blade with one thatnot match material being cut. matches the material being
cut (Page 5).
Blade is worn.
Replace blade.
Saw vibrates during cutting Tension lever is not set to the Set tensionlever to "LOCKED""LOCKED" side.
side.
Workpiece is not clamped
Clamp workpiece securely.
securely.
Blade is chipped or cracked. Replace blade.
Table 4

Saw cuts at an angle.

Cutting load is not adjusted
properly.

- 18 -

Troubleshooting
Problem

Cause

RemedyBlade slips or comes loose Blade is not installed properly . Install blade properly on"SELI" heads, guide rollers andpulley.
There is oil on blade.

Wipe away oil from blade andreinstall.

There is oil on workpiece.

Wipe away oil from workpiece.

There is oil on pulleys,
guide rollers or "SELI" headbearings.

Wipe away oil.

Tension lever is not set firmly
in place.

Turn tension lever to proper
position.

Rubber ring on pulley is worn. Replace rubber ring on pulley.
(Have unit repaired orserviced.)
There is resin or chips sticking Wipe rubber ring with a rag.
to rubber ring on pulley.
Motor does not work

Motor stops when cutting

Overload protection unit has
been activated.

Use the procedure on Page 12
to reset.

Power plug has come out ofelectric outlet.

Insert plug into outlet.

There is a short in the power
cord.

Have unit repaired or serviced.

Switch is faulty.

Have unit repaired or serviced.

Motor is faulty.

Have unit repaired or serviced.

Overload protection unit has
been activated.

Use the procedure on Page 12
to reset.

Line voltage is too low.

Reconnect to a 220V power
supply.

Blade does not match material Replace blade with one thatmatches the material being cut.
being cut.
(Page 5)
Cutting load is not adjusted
properly.

Adjust the cutting load to matchthe material being cut. (Page 5)

Workpiece moved during
cutting.

Make sure workpiece isfastened securely in the Vshaped groove.

Table 5

- 19 -

Warranty and Liability
1. Should the machine happen to break down for no apparent reason despite normal andcorrect use, repairs and service parts shall be provided free of charge as outlined below.
Guarantee period, repairing dates, procedures and methods for providing repairs and service
parts shall be decided in consultation with the customer and distributor.
Repairs and service parts may be charged.
Repairs may be charged even under the following circumstances:- if the machine has not been used according to the instructions in the Operation Manual.
- if it has been used for anything other than its intended purpose.
- if it has not been repaired according to the Operation Manual or if it has been remodeled.
- if blades or consumables need replacing.
- if the machine has been handled in an inappropriate way.
2. REX will accept no responsibility under the following circumstances:- fire, damage from flood, earthquakes, lightning or other natural disasters.
- malfunction or accident resulting from pollution or abnormal voltage.
- when the machine has not been operated according to the Operation Manual.
- when the machine has been used incorrectly, repaired or remodelled inappropriately.
3. Any costs incurred by the manufacturer shall not exceed the purchase price of the machine.

Specifications, colour, etc. may be changed without prior notification.

5V120-E5
XB125/120A

2004R0200