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5. How to replase grease
This machine is full air-tight construction to protect against dust and to prevent lubricant
leakage. Therefore, the machine can be used without lubrication for long periods. Replace
the grease as described below.
Grease replacement period
After purchase, replace grease after every 6 months of usage. Ask for grease replacement
at the nearest HITACHI Authorized Service Center. Proceed for replacement of grease.
Grease replenishment
CAUTION: Before replenishing the grease, turn the power off and pull out the power
plug.
(1) Remove the crank cover and wipe off the grease
inside.
(2) Apply 0.7 oz (20 g) of HITACHI Electric Hammer
Grease A (standard accessory, contained in
tube) to the crank case.
As the tube contains 1 oz (30 g) of grease,
supply 2/3 of the contained grease.
(3) After replenishing the grease, install the crank
cover securely.
NOTE: The HITACHI Electric Hammer Grease
A is of the lower viscosity type. When
the supplied grease tube is consumed,
purchase from a HITACHI Autorized
Service Center.
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.
16
Crank cover
Fig. 16
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