How To Use The Demolition Hammer; How To Replace Grease - Hitachi H 45MA Instruction Manual And Safety Instructions

HOW TO USE THE DEMOLITION HAMMER

1. After placing the tip of the tool in the base
hole, switch ON.
2. By utilizing the empty weight of the machine
and by firmly holding the hammer with
both hands, one can effectively control the
subsequent recoil motion.
Proceed at a moderate work-rate, the use
of too much force will impair efficiency.
CAUTION: After long time of use, the front cover becomes hot.
Therefore, be careful not to burn your hands.
GREASE REPLACEMENT
This machine is of full air-tight construction to protect against dust and to prevent lubricant
leakage. This machine can be used without grease supplement for an extended period of
time. However, perform the grease replacement to maintain 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) Remove the crank cover and wipe off the
old grease inside.
(2) Supply 1 oz (30g) (the standard volume to
cover the connecting rod) of Hitachi Electric
Hammer Grease A to the crank case.
(3) After replacing the grease, install the crank
cover securely.
NOTE:
The Hitachi Electric Hammer Grease A is of
the low viscosity type. When the grease is
consumed, purchase from an authorized
Hitachi Service Center.
Do not excessively supply the designated
amount of grease. Otherwise, the tool
should not operate accurately.
English
Fig. 6
Crank Cover
Fig. 7
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