Lubrication; Tightening Torque - Hitachi DH 24PE (S) Technical Data And Service Manual

(5) Reassembly of the Gear Cover [104]
After reassembly as shown in Fig. 25, ensure that the Change Lever [107] is adjusted to the "striking only"
position. Engage the claws of the Clutch [122] and the Reciprocating Bearing [123] each other. Align the
wing portion of the Lock Plate [119] horizontally and reinstall the Gear Cover [104] so that the wing portion of
the lock plate is contained in the rail inside of the gear cover. When the second shaft contacts the Pinion
Sleeve [118] inside the gear cover, move the Change Lever [107] to the "rotation and striking" mode and
rotate the grip. Then the second shaft and the Pinion Sleeve [118] are engaged and the end surface of the
Gear Cover [104] contacts that of the Housing [54]. At this time, rotate the grip to check that the rotation of
the Cylinder [111] is transmitted to the armature shaft.
Spring (B) [105]

9-3. Lubrication

Apply special grease (N.P.C FG-6A, Code No. 980927, is recommended.) to the inner and outer circumferences
of the Piston Pin [31], and the Piston [30], O-Ring (A) [29] mounted on the Striker [28], O-Ring (B) [26] mounted
on the Second Hammer [116], the Reciprocating Bearing [123], the Reciprocating Bearing [123] mounting portion
and the Second Pinion [120] mounting portion of the second shaft of the Gear.Shaft Set [117], the O-Ring
(I.D. 10.5) [27A] and the clutch-claw portions of the Cylinder [111], the end surfaces of the Clutch Spring [121],
the inner circumferences of the metal inside the Inner Cover [33], the inner circumference of the Oil Seal [14] and
the flange of the Clutch [122]. Also, without fail, insert 55 g (1.94 oz) of special grease inside the Gear Cover
[104].

9-4. Tightening Torque

Tapping Screws (W/Flange) D4 [58], [68]
Tapping Screws (W/Flange) D5 x 35 [8]
Gear Cover [104]
Rail in gear cover
End surface of gear cover
Move the Change Lever [107]
to the "striking only" (
position.
• • • • • • • • • •
• • • • • • • • • • • •
Move the Piston [30] to
its maximum upper position.
Align the wing portion of the Lock Plate [119]
horizontally.
mark)
Fig. 25
2.0 0.5 N.m (20
2.9 0.5 N.m (30
--- 28 ---
Housing [54]
End surface of
gear cover
Engage the claws of the Clutch [122]
5 kgf cm, 17.4 4.3 in-lbs)
•
5 kgf cm, 26.0 4.3 in-lbs)
•