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(5) Lubrication
Apply Hitachi Motor Grease No. 29 to the following places:
Apply 30 g (1 oz) to the gears in the Gear Cover
[100]
and the Crank Case
[94]
, and coat grease on the
Needle Bearing (M661)
[99]
(motor ass'y), Steel Ball D7.0
[17]
, pinion of armature ass'y.
Apply special grease (grease for electric impact drill) to the following places:
Apply 30 g (1 oz) to the Connecting Rod
[45]
in the crank case.
Apply 10 g (0.3 oz) to the inside of the Cylinder Case
[9]
.
Coat grease on the inside diameter of the Connecting Rod
[45]
of the piston ass'y, O-ring (C) of the Second
Hammer
[23]
, O-ring (I.D 19.2)
[32]
, sliding portion of the Second Hammer
[23]
, Damper
[25]
, Damper (C)
[29]
, O-ring
[62]
, inside and outside diameters of the Bevel Gear
[41]
, inside diameter of the Clutch
[40]
,
inside diameter of Slide Sleeve (A)
[34]
, inside diameter of Slide Sleeve (B)
[33]
, inside lip portion of Oil Seal
(B)
[75]
and inside lip portion of the Oil Seal
[11]
.
(6) Oil seal and others
Be careful not to scratch the following parts:
Oil Seal
[11]
and O-ring
[10]
of the Cylinder Case
[9]
Oil Seal (B)
[75]
and O-ring (S-32)
[96]
of the Crank Case
[94]
O-ring (C) of the Second Hammer
[23]
O-ring (I.D 19.2)
[32]
of the Piston
[44]
and the Striker
[31]
O-ring
[62]
of the Lever Shaft
[61]
O-ring (S-48)
[91]
of the Crank Case Cover
[90]
9-3. Screw Locking Agent TB1401
Apply screw locking agent TB1401 to all hex. socket head bolts M4, M5 and M6.
Note: Be sure to apply screw locking agent ThreeBond TB1401 to the threads during reassembly, as the
bolts loosened with vibration may cause damage to the tool body.
