Hitachi DH 40MR, Техническое и сервисное руководство

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(7) Oil seal and others
Take care not to scratch or cut Oil Seal (A) [52] and Oil Seal (B) [48] of the Cylinder Crank Case [49], Oil Seal
[10] and O-ring (1AS-60) [9] of the Front Cover [8], O-ring (C) [18] of the Second Hammer [19], Rubber Seal
[41] of the Crank Cover [39] and the O-ring [30] of the Piston [32] and the Striker [29].
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.
9-4. Tightening Torque
Front cover mounting bolts ............................................................................... 13.7 N
•
m (140 kgf
•
cm)
(Hex. socket head bolt M6 x 25)
Tapping screw D5 ............................................................................................. 2.94 0.49 N
•
m (30 5 kgf
•
cm)
Hex. socket head bolt M6 x 45 ......................................................................... 9.8 N
•
m (100 kgf
•
cm)
Hex. socket head bolt M6 x 22
Tail cover mounting bolt ................................................................................... 4.41 0.49 N
•
m (45 5 kgf
•
cm)
(Hex. socket head bolt M5 x 10)
Crank cover mounting bolt ............................................................................... 4.41 0.49 N
•
m (45 5 kgf
•
cm)
Lever shaft mounting bolt
(Hex. socket head bolt M4 x 12)
Tapping screw (W/Flange) D4 .......................................................................... 1.96 0.49 N•m (20 5 kgf•cm)
Handle mounting bolt ....................................................................................... 4.41 0.49 N•m (45 5 kgf•cm)
(Hex. socket head bolt (W/Flange) M5x14)
+0.98
0
+10
0
+1.96
0
+20
0