English
7 1⁄4” Circular Saw
Operator’s Manual
GCS100
3. Check the operation and condition 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 buildup
of debris.
4. Lower guard should be retracted manually only for special cuts such as “Pocket Cuts” and “Compound Cuts.”
raise lower guard by retracting Lever. As soon as blade enters the material, lower guard must be released.
for all
other sawing, the lower guard should operate automatically.
5. 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.
6. nEVEr hold piece being cut in your hands or across your leg
. It is important to support the work properly to minimize body
exposure, blade binding, or loss of control.
7. Hold 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 tool “live” and shock the operator.
8. When ripping always use a rip fence or straight edge guide.
This improves the accuracy of cut and reduces the chance for blade binding.
9. Always use blades with correct size and shape (diamond vs. round) arbor holes.
Blades that do not match the mounting
hardware of the saw will run eccentrically, causing loss of control.
10. never use damaged or incorrect blade washers or bolts.
The blade washers and bolt were specially designed for your saw, for
optimum performance and safety of operation.
11. 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 work piece toward the operator.
• 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.
• 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.
• Kickback is the result of tool misuse and/or incorrect operating procedures of conditions and can be avoided by taking proper precautions as
given below:
12. Maintain a firm grip on the saw and position your body and arm in a way that allows you to resist KiCKBACK
forces.
KICKBACK forces can be controlled by the operator, if proper precautions are taken.
13. 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.
14. When restarting a saw in the work piece, center the saw blade in the kerf and check that teeth are not engaged
into the material.
If saw blade is binding, it may walk up or KICKBACK from the work piece as the saw is restarted.
15. Support large panels to minimize 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.
16. Do not use dull or damaged blade.
unsharpened or improperly set blades produce narrow kerf causing excessive friction, blade binding,
and KICKBACK.
17. Blade depth and bevel adjusting locking levers must be tight and secure before making cut.
If blade adjustment shifts
while cutting, it will cause binding and KICKBACK.
18. Use extra caution when making a “Pocket Cut” into existing walls or other blind areas.
The protruding blade may cut
objects that can cause KICKBACK.