Hitachi C 7WDM Safety And Instruction Manual page 7

When blade is binding, or when interrupting a cut for any reason, release the
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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.
When restarting a saw in the workpiece, center the saw blade in the kerf and
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check that the 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.
Support large panels to minimize the risk of blade pinching and kickback.
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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.
Do not use dull or damaged blades. Unsharpened or improperly set blades produce
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narrow kerf causing excessive friction, blade binding and kickback.
Blade depth and bevel adjusting locking levers must be tight and secure before
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making the cut. If blade adjustment shifts while cutting, it may cause binding and
kickback.
Use extra caution when sawing into existing walls or other blind areas. The
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protruding blade may cut objects that can cause kickback.
LOWER GUARD FUNCTION
1. Check lower guard for proper closing before each use. Do not operate the saw if the
lower guard does not move freely and close instantly. Never clamp or tie the lower
guard into the open position. If the saw is accidentally dropped, the lower guard may be
bent. Raise the lower guard with the lower guard lifting lever and make sure it moves freely
and does not touch the blade or any other part, in all angles and depths of cut.
2. 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 build-up of debris.
3. The lower guard shall be retracted manually only for special cuts such as "plunge
cuts" and "compound cuts". Raise the lower guard by the lower guard lifting lever and
as soon as the blade enters the material, the lower guard must be released. For all other
sawing, the lower guard should operate automatically.
4. Always observe that the lower guard is covering the blade before placing the saw
down on bench or fl oor. 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.
OTHERS
1. ALWAYS wear proper apparel. Do not wear loose clothing, gloves, neckties, rings,
bracelets or other jewelry which may get caught in moving parts to lead personal injury.
Wear protective hair covering to contain long hair.
2. ALWAYS wear eye protection. Any power tool can throw foreign objects into eyes and could
cause permanent eye damage. ALWAYS wear Safety Goggles (not glasses) that comply
with ANSI Safety standard Z87.1. Everyday eyeglasses have only impact–resistant lenses.
They ARE NOT safety glasses.
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