Service And Repairs - Hitachi WH 14 Manual De Instrucciones

3. Inspecting the carbon brushes (Fig. 10)
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 impact wrench with
a carbon brush which is worn
in excess of the wear limit will
damage the motor.
NOTE: Use HITACHI carbon brush number
indicated in Fig. 10.
4. Replacing carbon brushes
To replace carbon brushes, use a slotted
head screwdriver to disassemble the brush
caps after disassembling the cap covers.
Then remove the carbon brushes together
with the spring.
When assembling, reverse the procedure
for disassembling. In this case assemble
the cap covers after screwing up the brush
caps firmly.

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.
NOTE:
Specifications are subject to change without any obligation on the part of the HITACHI.
(WH14,WH16)
Wear limit
21
0.20" (5mm)
No. of carbon
0.47" (12mm)
brush
(WH22)
Wear limit
43
0.24" (6mm)
No. of carbon
0.67" (17mm)
brush
Fig. 10
English
17