Maintenance And Inspection - Hitachi SP 18VA Instruction Manual

MAINTENANCE AND INSPECTION

WARNING
Be sure to switch power OFF and disconnect the plug from the receptacle during maintenance and
inspection.
1. Inspecting the screws
Regularly inspect all screws and ensure that they are properly tightened. Should any of the screws be loosened,
retighten them immediately.
WARNING
Using this electronic sander polisher with loosened screws is extremely dangerous.
2. Inspecting the carbon brushes (Fig. 9)
The motor employs carbon brushes which are consumable parts.
Replace the carbon brush with a new one when it becomes worn
to its wear limit. Always keep carbon brushes clean and ensure that
they slide freely within the brush holders.
CAUTION
Using this electronic sander polisher with a carbon brush
which is worn in excess of the wear limit will damage the
motor.
NOTE
Use HITACHI carbon brush No. indicated in Fig. 9.
○ Replacing carbon brushes:
Remove the brush caps (Fig. 1) with a slotted screwdriver. The carbon brushes can then be easily removed.
3. Cleaning lock pin section
If the lock pin section becomes dirty, clean it at once.
4. Service and repairs
All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To
assure that only authorized replacement parts will be used, all service and repairs must be performed by a HITACHI
AUTHORIZED SERVICE CENTER, ONLY.
5. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
CAUTION
Repair, modifi cation and inspection of Hitachi Power Tools must be carried out by a Hitachi Authorized
Service Center.
This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when
requesting repair or other maintenance.
In the operation and maintenance of power tools, the safety regulations and standards prescribed in each
country must be observed.
MODIFICATIONS
Hitachi Power Tools are constantly being improved and modified to incorporate the latest technological
advancements.
Accordingly, some parts (i.e. code numbers and/or design) may be changed without prior notice.
English
Wear limit
43
No. of carbon
Fig. 9
13