Hitachi DH 50MB, Технические данные и руководство по обслуживанию

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9-2. Reassembly
Perform reassembly in the reverse order of disassembly while observing the given precautions and taking care of
the following points.
(1) Lubrication
Apply special grease (for hammer and hammer drill) to the following portions.
Inner circumference of the Connecting Rod Ass'y [76]
Two O-Rings [73] attached to the Striker [72] and Piston [75]
Inner lip portion of the Oil Seals [10] and [92]
Fill 30 g of special grease in the Cylinder Case [58] and 75 g of special grease in the Crank Case [35] of the
connecting rod side. Apply power tool grease No. 29 to the Needle Bearing [49] and armature pinion. Fill 40 g
of power tool grease No. 29 in the gear section of the gear cover and the crank case, and 20 g between the
slip clutch (washer (A) side) and the crank case.
(2) Oil seal and others
Handle with care not to damage the Rubber Seal [34] in the Crank Case [35], two O-Rings [73] in the Piston
[75] and Striker [72], O-Ring [53] in the Second Hammer [54], O-Ring (D) [62] in the Cylinder Case [58], O-
Ring [9] in the Front Cover [8], O-Ring [83] in the Lever Shaft [84], Oil Seal [10] in the Front Cover [8] and Oil
Seal [92] in the Gear Cover [50].