Maintenance And Inspection - Hitachi C 10FC2 Instruction Manual And Safety Instructions

MAINTENANCE AND INSPECTION

WARNING:
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.
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:
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.
2. Inspecting the carbon brushes (Fig. 35 and Fig. 36)
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. Check the carbon brushes after
the first 50 hours of use for a new machine or after a new set of carbon brush have been installed. After
the first check, examine them after each about 10 hours of use until such time that replacement is
necessary.
When the carbon on either brush is worn to 3/16" (5 mm) in length or if either spring or shunt wire is
burned or damaged in any way, replace both carbon brushes (see Fig. 35). If the carbon brushes are
found serviceable after removing, reinstall them in the same position as before removed.
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. 36) with a slotted
(minus) screwdriver.
43/64" (17mm)
3. Inspecting the mounting screws
Regularly inspect each component of the power tool for looseness.
Re-tighten mounting screws on any loose part.
WARNING:
To prevent personal injury, never operate the power tool if any components are loose.
4. Inspecting the blade guard for proper operation
Before each use of the tool, test the blade guard (see Fig. 11) to assure that they are in good condition
and that they move smoothly.
Never use the tool unless the blade guard operate properly and unless they are in good mechanical
condition.
Wear Limit Line
3/16" (5 mm)
Fig. 35
Brush Cap
Motor Housing
Fig. 36
English
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