Maintenance And Inspection - Hitachi C 12LSH Safety Instructions And Instruction Manual

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CAUTION:

MAINTENANCE AND INSPECTION

WARNING:
1. Inspecting the saw blade
Always replace the saw blade immediately upon the first sign of deterioration or damage.
A damaged saw blade can cause personal injury and a worn saw blade can cause
ineffective operation and possible overload to the motor.
CAUTION:
2. Inspecting the carbon brushes (Fig. 53 and Fig. 54)
The carbon brushes in the motor are expendable parts.
If the carbon brushes become excessively worn, motor trouble might occur.
Therefore, inspect the carbon brushes periodically and replace them when they have
become worn to the wear limit line as shown in Fig. 53.
Also, keep the carbon brushes clean so that they will slide smoothly within the brush
holders.
The carbon brushes can easily be removed after removal of the brush caps (see Fig. 54)
with a slotted (minus) screwdriver.
Wear limit line
38
1/4" (6 mm)
11/16" (17 mm)
Fig. 53
3. About Handling the Motor (see Fig. 1)
Winding of the motor is said to be the heart of this tool. Exercise utmost caution not to
damage the winding by exposing it to wash oil or water.
NOTE:
Accumulation of dust and the like inside the motor can result in a malfunction.
After using the motor for 50 hours or so, carry out no-load running, and blow
in the dry air from a wind hole at the motor's rear. Such action is effective to
discharge dust and the like.
40
Never attempt to install saw blades larger than 12" (305 mm) in
diameter.
Always install saw blades that are 12" (305 mm) in diameter or less.
To avoid an accident or personal injury, always confirm that the
trigger switch is turned OFF and the power plug has been
disconnected from the receptacle before performing any maintenance
or inspection of this tool.
Never use a dull saw blade. When a saw blade is dull, its resistance
to the hand pressure applied by the tool handle tends to increase,
making it unsafe to operate the power tool.
No. 38 indicates the last
two numbers of carbon
brush Code No.
Brush cap
Groove for driver
Fig. 54