Maintenance And Inspection - Hitachi DV 20V2 Instruction Manual

MAINTENANCE AND INSPECTION
1. Inspecting the driver bit
Since continued use of a worn driver bit will damage screw heads, replace the driver
bit as soon as excessive wear is noticed.
2. Inspecting the drill bit
Continued use of a worn and/or damaged drill bit will result in reduced drilling efficiency
and may seriously overload the drill motor. Inspect the drill bit frequently and replace
it as necessary.
3. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that they are properly tightened.
Should any of the screws be loose, retighten them immediately. Failure to do so could
result in serious hazard.
4. Inspecting the carbon brushes
For your continued safety and electrical protection, carbon brush inspection and
replacement on this tool should ONLY be performed by an AUTHORIZED HITACHI
POWER TOOL REPAIR SHOP.
5. Maintenance of the motor
The motor unit winding is the very "heart" of the power tool. Exercise due care to ensure
the winding does not become damaged and/or wet with oil or water.
NOTE
Due to HITACHI'S continuing program of research and development, the specifications
herein are subject to change without prior notice.
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