REX MANTIS 125 User manual

REX Band Saw
XB125・120A
・Operation Manual
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: Year Month
Sales Agent:
50/60Hz
XB125
(ChainVice)XB120A
(FlatVice)
0A

XB125(Chain Vice)XB120A(Flat Vice)
Setting Up Before Cutting Cutting
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 the
diagram below and follow the instructions acording to the model you purchased.
Chain Vice Flat Vice
For the XB125,read
those sections with
this symbol.
For the XB120A, read
those sections with
this symbol.
1.Transportation & Setting up
2.Unlocking the Frame
3.Power Supply
4.Changing the Blade
5.Preliminary Inspection
1.Adjusting the Cutting Load
1.Cutting
3.What to do if the motor stops
2.
What to do if the blade slips
2.Clamping the Workpiece 2.Clamping the Workpiece
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.
Safety Considerations
...............................................................
........... 1
Precautions when using the Mantis 125
...............................................
3
Names of Parts, Standard Specifi cations and Standard Accessories .... 4
Types of Blades (Optional extras) ........................................................ 5
Selecting the Cutting Load and Blade ................................................. 5
...............................................................................
5
Getting Ready
1. Transport and Setting up ........................................................ 6
2. Unlocking the Frame
.............................................................
6
3. Power Supply
...............................................................
..........
7
4. Changing the Blade
...............................................................
8
5. Preliminary Inspection
...........................................................
9
Preparing for Cutting
1. Adjusting the Cutting Load .................................................... 10
2. Clamping theWorkpiece
.......................................................
10
...............................................................
.........................
12
....................................................... 12
......................................................
13
............................................................ 13
..............................................................................
14
...............................................................
.......... 15
......................................
16
...................................................................
17
.............................................................................. 17
................................................................................... 18
CONTENTS
Definitions of WARNING and CAUTION
In this OperationManual, warnings are divided intoWARNING and CAUTION.
WARNING: indicates actions that could possibly result in death or severe injury to the user if the machine is used incorrectly.
CAUTION: indicates actions that could possibly result in injury to the user, or physical damage to property or to the machine or if
the machine is used incorrectly.
Even items described as CAUTION could 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 our sales office or distributor.
・Due to improvements in quality, performance or safety regulations, parts and specifications are subject to change without prior
notice. In such cases, the contents, photographs, illustrations etc. in this manual may differ from the product you have purchased.
Using the machine
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

(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 this precaution
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 take the
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 these precautions
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 and the 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.
Safety Considerations
- 1 -

(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 become caught 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, and check 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 other parts. 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.
Safety Considerations
- 2 -

(1) Keep away from the blade when it is rotating.
E ven after the unit has been turned off, the blade will continue to turn due to inertia. N E V E R T OU C H T H E B L A D E OR M OV I N G
PARTS WHILE THEY ARE IN MOTION. You may get caught inthemechanism, resultinginaccidentor 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 touch them 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 operati on.
(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 the frame 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 result in 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 "OF F" 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 to vibrate
or place excessive stress on the blade, resulting in breakage.
W hen 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.
Pr ecautions
- 3 -

-4-
Model
Vice type
Cutting
capacity
Power
Motor
Pully rotation
Unit size (mm)
Weight
Standard accessories
Single‑phasealternatingcurrent220V(50/60Hz)
Split‑phaseinductionmotor200W(Output)
70rpm(50Hz),84rpm(60Hz)
780(l)×340(w)×335(h)mm
Bladeforhigh‑speedbandsaw(14‑tooth;ProductNo.475312):1
Table 1
XB125 (
Chain Vice)
XB120A (
Flat Vice)
Pipes
45°
XB125
ChainVice
φ125mm □100mm
φ60mm
XB120A
FlatVice
φ120mm □105mm
φ60mm
φ50mm □50mm
Hexwrench(5mm):1 Socketwrench(17mm):1
Hexwrench(10mm)×:1
33kg 35kg
Plate A
Plate B
Vice Knob
Handle Frame cover
Cover lock Rear handle
Chain handle
Caster
Chain lock knob
Switch Reset button (overload protection)
Base
INTERIOR OF
FRAME COVER
Tension lever
Guide roller
"SELI" head
Blade
Motor
Frame lock knob
REAR
Load adjustment knob
・Standard Specifications and Standard Accessories
Fig. 1
Names of Parts, Standard Specifications and Standard Accessories
・Names of Parts
Round bar
(Soft steel bar)

Be sure to use only recommended blades.
Code no. Material
No. of teeth
Suitable for cutting No. of
blades
included
(teeth /
inch)
Steel pipe Stainless
steel pipe Steel Conduit
475302
Alloy
14
≧
15A
-
Wall thickness
≧6 mm
-
10
475303 18
≧
6A
-
Wall thickness
≧4 mm
Thick steel
475312
High-speed
(Bimetal)
steel
14
≧
15A
Wall thickness
≧4 mm
Wall thickness
≧6 mm
-
5
475313 18
≧
6A
Wall thickness
≧2 mm
Wall thickness
≧4 mm
Thick steel
475314 24 -
Wall thickness
≦2 mm
Wall thickness
≦ 2 mm
Thin steel
Types of Blades (Optional extras)
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.
Material Diameter
/ Wall
thickness
Alloy High-speed steel
14-tooth 18-tooth 14-tooth 18-tooth 24-tooth
Steel pipe
≦1"
LLLL
1 /" ~ 2"
MMMM
2 /" ~ 4"
HHHH
Conduit
Thick steel
MM
Thin steel
LLL
Steel (round
bar / section
steel)
≧1.9mm
LL
2 ~ 3.4mm
MM
3.5 ~ 4.9mm
MM
≧5mm
HH
Stainless
steel
≧1.2mm
LL
1.3 ~ 2mm
LL
2.1 ~ 3.9mm
MM
≧4mm
H
Resin pipe LL LL LL LL
Cast-iron pipe H H
Selecting the Cutting Load and Blade
LL = ultra-light load L = light load M = medium load H = heavy load
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.
.
- 5 -
Table 2
Table 3
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.
14
12

Getting r eady
Caster
Handle
Handle Rear handle
Fig. 2
Fig. 3
Frame lock knob
Turn
clockwise or
counterclockwise
Fig. 4
ەFrame lock status
Frame lock knob
Collar
Check to make sure knob is tightly
against collar with no gaps Fig. 5
1. Transport and Installation (Figs. 2 & 3)
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.
WARNING
Transport
(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)
(2) When moving the unit by carrying it, lift it from both the
front and rear handles. DO NOT TR Y TO LIFT IT BY
YOURSELF. The unit should always be carried by two or
more people. (Fig. 3)
Setting up
(1) Place the unit on level ground.
Place the unit on level ground and in a stable position. If it is
placed on an incline, it may topple during operation, resulting
in accident or injury.
CAUTION
(1) Pull the frame lock knob on the bottom left hand side of
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 is
unlocked.When transporting the unit, use the same process in
reverse to lock the frame prior to transport.
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.
WARNING
2. Unlocking the Frame (Figs. 4 & 5)
- 6 -
90r

Getting r eady
NEVER GROUND THE UNIT BY CONNECTING IT T O A
GAS PIPE. This may result in an explosion.
WARNING
Use a 220 V AC power supply. Also check the following:
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.
Grounding
Be sure to ground the unit prior to use.
To ensure safety, be sure to ground the unit even if the power
supply is equipped with a leakage breaker.
3. Power Supply (Fig. 6)
Before grounding, check the plug to make
sure there are no abnormalities. Use a tester, insulation resistance
tester or the like to check for current between the plug and
the metal part of the unit base.
Always follow local laws and regulations relating to earth leakage
breakers and grounding.
When using an extension cord
W hen the power outlet is at a distance and an extension cord must be
used, use one of suffcient thickness that i s as short as possi ble.
If the power supply is not equipped with a leakage breaker, be
sure to use a 3-wire cabtyre cable with one ground wire that can
be grounded.
Be sure to use an extension cord that is not damaged.
WARNING
- 7 -
Fig. 6Fig. 6
Earth
Pins Plug

・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.
WARNING
4. 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.
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.
Removing the frame cover
(1) Open the frame and release the two cover
locks 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)
W hen removing the f rame cover, make sure the blade does not pop out unexpectedly which could result i n acci dent or injury.
T his is parti cularly li k el y to happen when repl aci ng broken blades, so remove the f rame cover sl owl y and caref ully.
WARNING
(3) Remove
from "SELI"
Removing the blade (Fig. 10)
(1) Turn the pulley tension lever on the handle side anti-clockwise
to release the blade tension.
(2) Remove the blade from the pulley.
(3) Remove the blade from the "SELI."
Getting r eady
Cover lock
Fig. 7 Fig. 9 Fig. 8
Fig. 10
Hook
Frame cover
(1) Release tension lever
(2) Remove
from pulley
- 8 -

(1)(2)
(3)
(4)
(5)
(6)
Be sure to inspect the unit with the frame cover attached. If the
blade should come loose during inspection, it may fly out and
strike you in the face or otherwise lead to accident or injury.
WARNING
Attaching the blade (Fig. 11)
・A ttach the blade, using steps ( 1) through (5) in Fig. 10.
T hen turn the tension lever clockwise (6) to apply tension
to the blade.
Fig. 13
Fig. 12
Fig. 11
Checking the blade attachment (Fig. 12)
・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 pulleyA (on the wheel side) slowly anti-
clockwise 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.
(1) Insert the power plug into the outlet.
(2) With the frame open, set the ON/OFF switch on the right front
section of the base to the "ON" position.
(3) Check the following:
・Make sure there is no abnormal noise coming from the
motor or moving parts.
・Make sure the blade does not become misaligned or come
loose.
・Lower the frame and make sure the switch moves to the
"OFF" position.
(4) When all of the above have been checked, remove the plug
from the outlet.
5. Preliminary Inspection (Fig. 13)
Getting r eady
Make sure blade
does not run up on
pulley flange
Make sure blade is
inserted all the way to
the rear of the "SELI"
bearings
Turn the pulley by hand
and make sure the blade
is stable
(1) Connect to
power outlet
(2) Switch ON
- 9 -

1. Adjusting the Cutting Load (Fig. 14)
Referring to the table on Page 5, adjust the cutting load to match
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.
Note: The frame stopper may be disengaged, so lower the
frame carefully.
is not fastened securely in place, cutting will be unstable,
resulting in damage to the machine or in accident or injury..
CAUTION
1. Preparing for Cutting (Fig.14)
2. Clamping theWorkpiece (Figs. 15 - 22)
(1) Lift
(2) Pull load
adjustment knob
while turning it
LL = Ultra-light load
L = Light load
M = Medium load
H = Heavy load
Fig. 14
Fig. 15
Fig. 16
Fig. 17
Chain handle
(1) Chain lock knob
(2)
(4)
(5)
(3) Place workpiece
Chain handle
Chain lock knob
Pr eparing for Cutting
- 10 -
XB125 Chain Vice (Figs. 15〜17)
(1) Turn the chain lock knob anti-clockwise and release the
chain lock (Fig. 15)
(2) Unhook the chain handle and place at the rear of the vice.
(Fig. 15)
(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 hook to
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)
ChainVice
Make sure the workpiece is clamped securely. If the workpiece

Preparing for Cutting
Fig.18
Fig. 19
XB120A Flat Vice (Figs.18‑22)
How 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.
Right angle cuts (90°)
Place the workpiece in the vice carefully
aligning it with Plate A. (Fig.19)
Note: Position the workpiece so that there is no abrupt change in the
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 not be straight
or the motor may lock.
Push in the vice knob and move Plate B up against the
workpiece.(Fig. 19)
Turn the vice knob clockwise and fix the workpiece securely
in position.
Note: Make sure the workpiece is flush with the base of the vice or
the cut will not be straight.
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)
Fasten the workpiece in the same way as making 90°
cuts.
Fig. 22
Fig. 21
Correct orientation for clamping workpieces
Fig. 20
Set the desired
angle on the scale
- 11 -
Vice knob
Plate B
Plate A
Turn to
release the lock
Place the workpiece firmly against Plate A
Lock
Move Plate B firmly
against the
workpiece
Socket wrench
(standard accessory)
Locking bolts
FlatVice

(1) Insert the plug into the outlet. (Fig 23)
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 wi th the swi tch in the " ON" position, the unit wi ll operate
unexpectedly, possibly resulting in accident or injury.
Do not wear gloves whi le operating the unit. T hey may become
caught in the moving parts, leading to accident or injury.
CAUTION
1. Cutting (Figs. 23 - 25)
Cutting
(2) Hold the handle and lift the frame to its highest point and
release the stopper. (Fig. 23)
I mmediately after being cut, the workpi ece and blade will be very
hot. Y ou may be burned if you touch them with bare hands.
CAUTION
(4) W hen the blade has reached the proper speed of rotation, sl owly
place the blade agai nst the top of the workpiece. ( F i g. 25)
Notes:
・Do not place the blade against the top of the workpiece and
then 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.
(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)
(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)
2. If the Blade Slips While Cutting
・If there is oil, grease or similar on the workpiece or the
machine parts (blade, pulley or bearings), the blade and
pulley may slip during the cutting process and the pulley
may begin simply idling. If this happens, immediately turn
the ON/OFF switch to the "OFF" position and remove the
plug from the outlet.Then use a rag to wipe the oil from the
workpiece 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.
(1)
Insert plug
(2) Release stopper
Fig. 23
Fig. 24
Fig. 25
(3) Set ON/OFF switch to "ON" position
(4) Lower frame
(5) Machine
stops automatically
when cutting is complete
- 12 -

Fig. 29
XB125 Chain Vice
(Fig. 27, Fig. 28)
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).
Remove workpiece
Unlock
Pull out vice knob
FlatVice
Cutting
3. What to do if the motor stops (Fig.26)
・If an excessive load is applied during cutting or if the
blade 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 the
unit 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).
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 then
press the RESET button again.
4. Removing theWorkpiece (Figs.27 - 29)
(1) H old the handle and lift the frame to i ts highest point. C heck to
make 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).
Overload
protection unit RESET button Fig. 26
Fig. 27
Fig. 28
Handle
(1) Lift
frame
Chain lock knob
(2) Unlock
(5) Remove workpiece
(4)
(3) Remove
from hook
- 13 -
ChainVice

- 14 -
Cutting
Fig.31
Fig.30
XB125 Chain Vice (Fig30)
XB120A Flat Vice(Fig.31)
(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
Push Plate B
up against Plate A
FlatVice
5. Finishing the Cutting Process (Figs.30 & 31)
(1) Hook the chain handle hook onto the base and gently turn
the chain lock knob clockwise to lock the chain.
C lean 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 and cause the blade
to slip. Be sure to wipe away these chips, etc.
・
Chain lock knob
Turn gently to lock
ChainVice

・Always perform contour cutting on level ground and in a
stableposition.If contourcuttingis donewith themachine
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. T hey 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 the
workpiece is supported securely with both ends of the
workpiece at least 10cm from the blade. If the workpiece
is too close, it may get caught in the blade, resulting in
accident or injury.
WARNING
1. Contour Cutting (Figs. 32 - 34)
Other Uses
This tool can be used for contour cutting. Use the following
procedure to perform contour cutting, while observing the
warnings noted below.
(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) Pl ace the workpiece on a contour table and cut it
slowly. (Fig. 34)
Notes:
・Cut particularly slowly when cutting inward or downward.
・When cutting downward, press the blade against the
workpiece 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 as a
fail-safe procedure.
(5) Pull the stopper pin, while simultaneously grasping the
handle 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 blade
with a new one.
Pull stopper pin and
simultaneously turn 90°
Fig. 32
Fig. 33
Fig. 34
Stopper pin
Contour table
Workpiece
- 15 -

(1) Remove the blade, using the procedure on Page 8.
(2) Loosen the "SELI" head fastening bolt and turn the head to
match the slanted cut.
兟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.
兟When the "SELI" head is moved in the direction of the
white arrow (Fig. 35), the pipe will be cut in the direction
of the white arrow.
兟When the "SELI" head is moved in the direction of the
black arrow (Fig. 35), the pipe will be cut in the direction
of the black arrow.
Note: In the case of a 100 A 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.
兟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.
兟If a problem is discovered during inspection or maintenance, check the Troubleshooting table and take the
appropriate action. Continued use of the unit without correcting the problem may result in heat, smoke or fire,
leading to accident or injury.
WARNING
1. Adjusting the "SELI" head angle (Fig. 35)
Maintenance
In the event of vertical slanted cuts, the problem can be corrected by adjusting the angle of the
"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.)
兟Worn blade and wear caused by
blade misalignment
Replace blade
兟Workpiece moved during cutting Clamp workpiece properly
兟Cutting load is not adjusted properly Adjust load to match workpiece
兟Number of blade teeth does not
match material being cut
Use a blade with a number of teeth
that matches the material being cut.
兟"SELI" bearings are worn Replace bearings
Reference line
"SELI" lock bolt Fig. 35
- 16 -

・Check the blade.
・Check to make sure the blade is not chipped or
otherwise damaged. If it is, replace it.
・I f the blade becomes worn, replace i t as soon as
possi bl e. C ontinued use of a worn blade may result
in slanted cutting.
・Check all bolts.
・Make sure all bolts are fastened tightly. Tighten any
that need it.
・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 are
adjusted properly.
・Check to see if the "SELI" head bearings are worn.
If they are, replace them.
・Keep the unit clean.
・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.
2. Maintenance of Parts (Fig. 36)
Maintenance
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 .
Servicing & r epair
Replace blade
Inspect the "SELI"
Inspect power cord and plug
・Inspect all bolts
・Clean Fig. 36
- 17 -
This manual suits for next models
1
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