1200W
184MM (
CIRCULA
LS1375
INSTRUCTION MANUAL
Code: LS1375
Date: 060512
Black
Cyan
Magenta
Yellow
Edition: 03
Op: PW
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Dear Customer
Description of symbols
If you require any help with your product, whether it
is a Warranty claim, spare part or user information,
please phone our Help Line for an immediate response.
Phone 1300 880 001 in Australia or
The rating plate on your tool may show symbols.
These represent important information about the
product or instructions on its use.
Wear hearing protection.
Wear eye protection.
0800 445 721 in New Zealand.
Wear breathing protection.
Introduction
Your new GMC power tool will more than satisfy
your expectations. It has been manufactured under
stringent GMC Quality Standards to meet superior
performance criteria.
Double insulated for additional protection.
Conforms to relevant standards
for electromagnetic compatibility.
You will find your new tool easy and safe to operate,
and, with proper care, it will give you many years
of dependable service.
Specifications
Voltage:
230–240V ~ 50 Hz
1200W
5000 min-1
CAUTION. Carefully read through this entire Instruction
Manual before using your new GMC Power Tool. Take
special care to heed the Cautions and Warnings.
Input power:
No load speed:
Blade diameter:
Blade teeth:
Your GMC power tool has many features that will make
your job faster and easier. Safety, performance, and
dependability have been given top priority in the
development of this tool, making it easy to maintain
and operate.
184mm
24 TCT
Blade arbour:
Blade kerf:
16mm
2.5mm
Environmental protection
Recycle unwanted materials instead
of disposing of them as waste. All tools,
hoses and packaging should be sorted,
taken to the local recycling centre and
disposed of in an environmentally safe way.
Bevel capacity:
Depth of cut at 90°:
Depth of cut at 45°:
Weight:
0° to 45°
65mm
43mm
4.9kg
WARNING
Sound pressure level:
96 dB(A)
It may be more difficult to see the laser line in conditions
of bright sunshine and on certain surfaces.
3
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e. When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of electric shock.
General safety rules
WARNING. Read all instructions. Failure to follow all
instructions listed below may result in electric shock,
fire and/or serious injury. The term “power tool” in all of
the warnings listed below refers to your mains operated
(corded) power tool or battery operated (cordless)
power tool.
3. Personal safety
a. Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a power tool while you are tired or under the
influence of drugs, alcohol or medication. A moment of
inattention while operating power tools may result in
serious personal injury.
Save these instructions
1. Work area
a. Keep work area clean and well lit. Cluttered and dark
areas invite accidents.
b. Use safety equipment. Always wear eye protection.
Safety equipment such as dust mask, non-skid
b. Do not operate power tools in explosive
atmospheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks which
may ignite the dust or fumes.
safety shoes, hard hat, or hearing protection used for
appropriate conditions will reduce personal injuries.
c. Avoid accidental starting. Ensure the switch is in the
off position before plugging in. Carrying power tools with
your finger on the switch or plugging in power tools that
have the switch on invites accidents.
c. Keep children and bystanders away while
operating a power tool. Distractions can cause you to
lose control.
d. Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached to
a rotating part of the power tool may result in personal
injury.
2. Electrical safety
a. Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any adapter
plugs with earthed (grounded) power tools. Unmodified
plugs and matching outlets will reduce risk of electric
shock.
e. Do not overreach. Keep proper footing and balance at
all times. This enables better control of the power tool in
unexpected situations.
b. Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock
if your body is earthed or grounded.
f. Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves away from
moving parts. Loose clothes, jewellery or long hair can be
caught in moving parts.
c. Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of
electric shock.
g. If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used. Use of these devices
can reduce dust related hazards.
d. Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or moving
parts. Damaged or entangled cords increase the risk of
electric shock.
4
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4. Power tool use and care
Additional safety rules for laser lights
a. Do not force the power tool. Use the correct power tool
for your application. The correct power tool will do the job
better and safer at the rate for which it was designed.
The laser light/laser radiation used in the GMC REDEYE®
system is Class 2 with maximum output of 1mW and a
wavelength of 650nm. These lasers do not normally present
an optical hazard, although staring at the beam may cause
flash blindness.
b. Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
WARNING. Do not stare directly at the laser beam.
c. Disconnect the plug from the power source before
making any adjustments, changing accessories, or
storing power tools. Such preventive safety measures
reduce the risk of starting the power tool accidentally.
A hazard may exist if you deliberately stare into the beam.
Please observe all safety rules as follows:
• The laser shall be used and maintained in accordance
with the manufacturer’s instructions.
d. Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained
users.
• Never aim the beam at any person or an object other
than the workpiece.
• The laser beam shall not be deliberately aimed at
personnel and shall be prevented from being directed
towards the eye of a person for longer than 0.25s.
e. Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and
any other condition that may affect the power tools
operation. If damaged, have the power tool repaired
before use. Many accidents are caused by poorly
maintained power tools.
• Always ensure the laser beam is aimed at a sturdy
workpiece without reflective surfaces, i.e. wood or rough
coated surfaces are acceptable. Bright shiny reflective
sheet steel or the like is not suitable for laser use as
the reflective surface could direct the beam back at the
operator.
f. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges are less
likely to bind and are easier to control.
• Do not change the laser light assembly with a different
type. Repairs must only be carried out by the laser
manufacturer or an authorised agent.
g. Use the power tool, accessories and tool bits etc.,
in accordance with these instructions and in the
manner intended for the particular type of power
tool, taking into account the working conditions and
the work to be performed. Use of the power tool for
operations different from those intended could result in a
hazardous situation.
5. Service
a. Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the power tool is maintained.
CAUTION. Use of controls or adjustments or performance
of procedures other than those specified herein may result
in hazardous radiation exposure.
5
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• When the blade is pinched or bound tightly by the kerf
closing down, the blade stalls and the motor reaction
drives the unit rapidly back toward the operator;
Additional safety rules for circular saws
DANGER
a. Keep hands away from cutting area and the blade. Keep
your second hand on auxiliary handle, or motor housing.
If both hands are holding the saw, they cannot be cut by
the blade.
• If the blade becomes twisted or misaligned in the cut, the
teeth at the back edge of the blade can dig into the top
surface of the wood causing the blade to climb out of the
kerf and jump back toward the operator.
b. Do not reach underneath the workpiece. The guard
cannot protect you from the blade below the workpiece.
Kickback is the result of saw misuse and/or incorrect
operating procedures or conditions and can be avoided by
taking proper precautions as given below.
c. Adjust the cutting depth to the thickness of the workpiece.
Less than a full tooth of the blade teeth should be visible
below the workpiece.
a. Maintain a firm grip with both hands on the saw and
position your arms to resist kickback forces. Position your
body to either side of the blade, but not in line with the
blade. Kickback could cause the saw to jump backwards,
but kickback forces can be controlled by the operator, if
proper precautions are taken.
d. Never hold piece being cut in your hands or across
your leg. Secure the workpiece to a stable platform. It is
important to support the work properly to minimize body
exposure, blade binding, or loss of control.
e. Hold power tool by insulated gripping surfaces when
performing an operation where the cutting tool may
contact hidden wiring or its own cord. Contact with a “live”
wire will also make exposed metal parts of the power tool
“live” and shock the operator.
b. When blade is binding, or when interrupting a cut for any
reason, release the trigger and hold the saw motionless
in the material until the blade comes to a complete
stop. Never attempt to remove the saw from the work
or pull the saw backward while the blade is in motion
or kickback may occur. Investigate and take corrective
actions to eliminate the cause of blade binding.
f. When ripping always use a rip fence or straight edge
guide. This improves the accuracy of cut and reduces the
chance of blade binding.
c. When restarting a saw in the workpiece, centre the
saw blade in the kerf and check that saw teeth are not
engaged into the material. If saw blade is binding, it may
walk up or kickback from the workpiece as the saw is
restarted.
g. Always use blades with correct size and shape (diamond
versus round) of arbour holes. Blades that do not match
the mounting hardware of the saw will run eccentrically,
causing loss of control.
d. Support large panels to minimise the risk of blade
pinching and kickback. Large panels tend to sag under
their own weight. Supports must be placed under the
panel on both sides, near the line of cut and near the
edge of the panel.
h. Never use damaged or incorrect blade washers or bolt.
The blade washers and bolt were specially designed
for your saw, for optimum performance and safety of
operation.
Causes and operator prevention of kickback:
• Kickback is a sudden reaction to a pinched, bound or
misaligned saw blade, causing an uncontrolled saw to lift
up and out of the workpiece toward the operator;
e. Do not use dull or damaged blades. Unsharpened or
improperly set blades produce narrow kerf causing
excessive friction, blade binding and kickback.
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f. Blade depth and bevel adjusting locking levers must be
tight and secure before making cut. If blade adjustment
shifts while cutting, it may cause binding and kickback.
Contents of carton
The GMC LS1375 Circular Saw is supplied with the
following accessories as standard:
g. Use extra caution when making a “plunge cut” into
existing walls or other blind areas. The protruding blade
may cut objects that can cause kickback.
• Blade (fitted)
• Blade key
• Parallel fence
The protruding blade may cut objects that can
cause kickback.
Unpacking
a. Check lower guard for proper closing before each use.
Do not operate the saw if lower guard does not move
freely and close instantly. Never clamp or tie the lower
guard into the open position. If saw is accidentally
dropped, lower guard may be bent. Raise the lower guard
with the retracting handle and make sure it moves freely
and does not touch the blade or any other part, in all
angles and depths of cut.
Due to modern mass production techniques, it is unlikely
that your GMC Power Tool is faulty or that a part is missing.
If you find anything wrong, do not operate the tool until the
parts have been replaced or the fault has been rectified.
Failure to do so could result in serious personal injury.
Assembly
The GMC circular saw is packed, fully assembled except for
the parallel fence.
b. Check the operation of the lower guard spring. If the
guard and the spring are not operating properly, they
must be serviced before use. Lower guard may operate
sluggishly due to damaged parts, gummy deposits, or a
build-up of debris.
c. Lower guard should be retracted manually only for
special cuts such as “plunge cuts” and “compound cuts.”
Raise lower guard by retracting handle and as soon
as blade enters the material, the lower guard must be
released. For all other sawing, the lower guard should
operate automatically.
d. Always observe that the lower guard is covering the
blade before placing saw down on bench or floor. An
unprotected, coasting blade will cause the saw to walk
backwards, cutting whatever is in its path. Be aware
of the time it takes for the blade to stop after switch is
released.
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Know your product
1. Laser light assembly
2. Laser light on/off button
3. Laser light aperture
4. Trigger switch
23
4
5
6
19
7
5. Lock-off button
6. Motor housing
7. Main handle
8. Front handle
9. Bevel adjustment knob
10. Bevel scale
11. Parallel fence locking knob
12. Parallel fence
2
8
1
13. Blade guard lever
14. Lower blade guard
15. Base plate
16. Upper blade guard
17. Dust extraction port
18. Depth locking lever
19. Depth of cut indicator
17
16
3
20. Spindle lock button
13
21. Blade
22. Blade key storage area
23. Blade key
10
22
24. Blade guide notches
11
9
15
21
20
24
12
14
8
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You have purchased a 1200 Watt circular saw with the GMC
REDEYE® laser line cutting system.
Allowing more depth will increase the chance of kickback
and result in a rough cut.
Adjusting the bevel angle
Please refer to the safety instructions given earlier in this
manual for important instructions regarding the use of
the laser.
CAUTION. Always ensure that the saw is switched off
and unplugged from the power supply before making any
adjustments.
The saw is capable of ripping and cross cutting hardwoods,
softwoods and man made boards quickly, accurately and
safely.
1. The saw can be adjusted to cut at any angle between
0° and 45°.
2. Loosen the bevel adjustment
knob (9) located at the front of
the base plate.
By loosening the bevel adjustment knob (9), the body and
the blade of the saw can be tilted to any angle up to 45° for
making angle cuts. Please note that the maximum depth of
cut is reduced when cutting at an angle.
3. Tilt the body of the saw until
the required angle is reached
using the bevel scale (10) as
a guide.
A fixed upper blade guard (16) encloses the upper part of
the blade. As the saw advances through the workpiece, the
pivoting lower blade guard (14) is pushed back by the edge
of the wood to expose only that part of the blade which is
needed. When the blade clears the work, the spring loaded
lower blade guard snaps back to completely enclose the
blade.
4. Tighten the bevel adjustment
knob (9) to secure the base plate.
Note. Always make a trial cut in a scrap piece of material
along a guideline to determine how much you should offset
the blade from the guideline to make an accurate cut.
Adjusting the cutting depth
Switching on and off
1. Connect the plug to the power supply.
CAUTION. Always ensure that the saw is switched off
and unplugged from the power supply before making any
adjustments.
2. Depress the lock-off button
(5) and squeeze the trigger
switch (4).
1. Ensure that the saw is facing away from you.
2. Loosen the depth locking lever
(18).
3. The blade will take
approximately 2 seconds to
reach full speed.
3. Hold the base plate flat against
the edge of the workpiece and
lift the body of the saw until
the blade is at the right depth.
Use the depth of cut indicator
(19) to determine the cutting
depth.
Note. When you release the
trigger, the machine turns off
and the lock-off button re-engages to prevent accidental
operation.
CAUTION. Allow the blade to come to a complete standstill
before setting the saw down.
4. Tighten the depth locking lever (18).
Note. Always use the correct blade depth setting. The
correct blade depth setting for all cuts should not be more
than (6.35mm) 1/4” below the material being cut.
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Making a cut
Making a pocket cut
1. Mark the line of cut on the workpiece and align the blade
guide as follows:
1. Adjust the depth of cut as required.
2. Adjust the bevel setting to 0°.
a. Cutting at 90°
b. Cutting at 45°
3. Raise the lower blade guard
lever (13) to expose the saw
blade, firmly rest the front
of the base flat against the
workpiece with the rear handle
raised so the blade does not
touch the workpiece.
4. With the blade just clearing
the workpiece, start the motor by depressing the lock-off
button (5) and squeezing the trigger switch (4).
2. Rest the front edge of the
base on the workpiece. Start
the motor and let the blade
reach full speed
5. Always let the blade reach full speed (approximately 2
seconds) before you begin to cut into the workpiece.
6. Slowly lower the saw into the workpiece, using the front
of the base resting on the workpiece as a hinge point.
(approximately 2 seconds).
WARNING. As soon as the blade starts cutting the material,
release the lower blade guard
lever.
3. Slowly push the saw forward
using both hands.
Note. When making a cut always
7. Once the base plate (15) is
flat against the workpiece,
proceed cutting in a forward
direction to the
use steady, even pressure. Forcing the saw causes rough
cuts and could shorten the life of the saw or cause kickback.
Allow the blade and the saw to do the work.
4. After completing your cut, release the switch (4) and
allow the blade to come to a complete stop. Do not
remove the saw from the workpiece while the blade is
moving.
end of the cut.
8. After completing your cut,
release the trigger switch
and allow the blade to come
Note. Since blade thickness varies, always make a trial cut
in scrap material along the guideline to check the accuracy
of the blade guide notches.
to a complete stop. Do not remove the saw from the
workpiece while the blade is moving.
Note. If the corners of your pocket cut are not completely
cut through, use a jigsaw or hand saw to finish the corners.
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Only turn laser beam on when
tool is on workpiece.
Using the parallel fence
The parallel fence (12) allows you to make parallel cuts
in a sheet of wood, all at the same width.
1. Mark the line of the cut on the
workpiece.
CAUTION. Always ensure that the saw is switched off
and unplugged from the power supply before making
any adjustments.
2. Adjust the depth of cut and
bevel angle as required.
3. Rest the front edge of the
base on the workpiece.
1. Loosen the parallel fence locking knob (11)
4. Switch on the laser beam using the laser light on/off
button (2).
5. Align the beam with the line on
the workpiece.
6. Start the motor by depressing
the lock-off button (5) and
squeezing the trigger switch (4).
7. Always let the blade reach
full speed (approximately 2
seconds) before you begin to
cut into the workpiece.
2. Slide the parallel fence (12) through the slots in the base
plate (15).
3. Adjust the parallel fence to the required width and secure
it in position with the parallel fence locking knob (11).
8. Slowly push the saw forward using both hands, keeping
the red laser light beam on the line of cut.
4. Ensure that the parallel fence rests against the wood
along its entire length to give a consistent parallel cut.
Using the REDEYE® system
9. After completing your cut, release the trigger switch
and allow the blade to come to a complete stop. Do not
remove the saw from the workpiece while the blade is
moving.
WARNING. Do not stare directly at the laser beam.
10. Switch off the laser beam on completion of the cut.
Never aim the beam at any person or an object other than
the workpiece.
Do not deliberately aim the beam at personnel and ensure
that it is not directed towards the eye of a person for longer
than 0.25s.
Always ensure the laser beam is aimed at a sturdy
workpiece without reflective surfaces. i.e. wood or rough
coated surfaces are acceptable. Bright shiny reflective sheet
steel or the like is not suitable for laser use as the reflective
surface could direct the beam back at the operator.
11
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6. Mount the new saw blade onto the spindle and against
the inner flange.
Changing the blade
CAUTION. Always ensure that the saw is switched off
and unplugged from the power supply before making
any adjustments.
7. Replace the outer flange and
tighten the blade bolt.
WARNING. The direction in
1. Remove blade key (23) from
storage area (22). Place saw
on its side on a flat surface.
which the blade rotates has to be
the same as the direction of the
arrow marked on the housing.
2. Rotate the saw blade by hand
whilst depressing button (20)
until the blade locks.
Ensure that button (20) is
released. Before using the saw
again, check that the safety devices are in good
working order.
3. Whilst depressing button
(20), turn the blade bolt anti-
clockwise using blade key (23).
IMPORTANT. After replacing the saw blade, make sure that
the saw blade runs freely by turning the blade by hand.
8. Plug the machine into a power socket and run the saw
under no load to check that it runs smoothly before using
it to cut any material.
9. Place blade key (23) back in
storage area (22).
Maintenance
WARNING. Always ensure
that the tool is switched off and
the plug is removed from the
power point before making any
adjustments or maintenance
procedures.
4. Remove the outer blade flange and the blade bolt.
5. Raise the lower blade guard
(14) using lever (13). Remove
the saw blade from the inner
flange and pull out the blade.
Note. Clean the saw blade
flanges thoroughly before
mounting the new saw blade.
Wipe a drop of oil onto the inner
and outer flange where they will
touch the blade.
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CAUTION. Do not use cleaning agents to clean the
plastic parts of the tool. A mild detergent on a damp cloth
is recommended. Water must never come into contact
with the tool.
Cleaning
1. Keep the tool’s air vents unclogged and clean at all times.
2. Remove dust and dirt regularly. Cleaning is best done
with a rag.
General inspection
3. Re-lubricate all moving parts at regular intervals.
Regularly check that all the fixing screws are tight. They
may vibrate loose over time.
4. If the body of the saw needs cleaning, wipe it with a soft
damp cloth. A mild detergent can be used but nothing like
alcohol, petrol or other cleaning agent.
Power cord maintenance
5. Never use caustic agents to clean plastic parts.
If the supply cord needs replacing, the task must be carried
out by the manufacturer, the manufacturer’s agent, or an
authorised service centre in order to avoid a safety hazard.
Troubleshooting
Trouble
Problem
Suggested remedy
Saw will not start
Power cord not plugged in
Ensure that the cord is connected to the power supply
Check the power supply
Power fault, fuse or circuit breaker
tripped
Cord damaged
Burned out switch
Faulty motor
Use authorised service centre to repair or replace
Use authorised service centre to repair or replace
Use authorised service centre to repair or replace the
motor
Blade does not reach Extension cord too long or undersized Use extension cord heavy enough to carry the current
full speed
Tool is overheating
Turn off the tool and let it cool down to room temperature.
Inspect and clean the ventilation slots
Poor cutting
Accessory blunted
Replace with new circular saw blade
Vibration or abnormal Loose parts
noise
Check to see that all knobs and levers are securely
tightened including bevel adjustment knob, depth locking
lever and parallel fence locking knob
Blade vibrating
Ensure that the blade nut is securely tightened
Use authorised service centre to repair or replace
Moving parts excessively worn
13
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Carefully read the entire Instruction Manual
before using this product.
Before returning this product for a Warranty Claim or any other reason
Please Call 1300 880 001 (Australia) or 0800 445 721 (New Zealand)
When you make your call, please have the following information at hand:
GMC Product Type
GMC Product Code
A GMC Service Engineer will take your call and, in most cases, will be able to solve your problem over the phone.
You are welcome to use this phone-in service to make suggestions or give comments about any GMC product.
With continuing product development changes may have occurred which render the product received slightly
different to that shown in this instruction manual.
The manufacturer reserves the right to change specifications without notice.
Note: Specifications may differ from country to country.
Helpline 1300 880 001 (Australia) or 0800 445 721 (New Zealand)
and enter your receipt details.
The GMC 777 Helpline operates from 7am to 7pm, 7 days a week (EST).
This allows you to contact GMC directly with any queries
and technical questions you have regarding products.
Save this Manual for future reference
GMC Head Office:
45-55 South Centre Road, Melbourne Airport, Victoria, Australia 3045
Telephone (03) 8346 1100 Fax (03) 8346 1200
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