Hitachi DH 40MR instruction manual How to replase grease, Service and repairs

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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 1.0 oz (30 g) of HITACHI Electric Hammer Grease A (standard accessory, contained in tube) to the crank case.

(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.

Crank Cover

Fig. 21

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.

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