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without grease replenishment for an extended
period of time. However, perform the grease
replacement to extend the service life. Replace the
grease as described below.
(1) Grease Replacement Period
Inspect the grease amount according to the timing
replacement period of the carbon brush. (See item
3 in the section MAINTENANCE AND
INSPECTION.)
Ask for grease replacement at the nearest
authorized Hitachi Service Center.
In the case that you are forced to change the grease
by yourself, please follow the following points.
(2) How to replace grease
CAUTION:
Before replacing the grease, turn the power off
and pull out the plug from the receptacle.
1 Disassenble the crank cover and thorougly wipe
off the old grease inside.
2 Supply 0.9 oz (27 g) (the standard volume to cover
the connecting rod) of Hitachi Electric Hammer
Grease A in the crank case.
3 After replacing the grease, reassemples the crank
cover securely. At this time, do not damage or lose
the oil seal.
10
Crank cover
Fig. 11
NOTE:
The Hitachi Electric Hammer Grease A is of the low
viscosity type. When the grease is consumed,
purchase from the authorized Hitachi Service
Center.
Do not excessively supply the designated amount
of grease. Otherwise, the tool should not operate
accurately.
6.
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.
7.
Service parts list
A:
Item No.
B:
Code No.
C:
No. Used
D:
Remarks
CAUTION:
●
Repair, modification 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.
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