Hitachi H 60MA Repair Manual page 4

1-1-3. Screw locking agent TB1401
Apply screw locking agent TB1401 to all hex. socket hd. bolts M5 and M6. (As the hex. socket hd. bolts for
M8 that secure the front cover and the hex. socket hd. bolts (w/flange) for M8 that secure the cylinder case
are special bolts, they cannot be re-used if removed. Use fresh service parts only.)
Caution: If bolts are loosened by vibration, it could cause damage to the hammer body. Ensure
without fail that screw locking agent is applied to threaded portions prior to reassembly.
1-1-4. Tightening torque
(1) Hex. socket hd. bolts M5
(2) Attached bolts of handle
(Hex. socket hd. bolts M5 x 12)
(3) Hex. socket hd. bolts M6
(4) Tapping screws D4
(5) Tapping screws D5
(6) Attached bolts of front cover
(Hex. socket hd. bolts M8 x 25)
(7) Attached bolts of cylinder case
(Hex. socket hd. bolts (w/flange) M8 x 35)
1-1-5. Internal wiring
• Wiring diagram of Model H 60MA (products without control circuit ass'y)
(1) For products with noise suppressor
A
Stator
Connector
Armature
Stator
+ 1.96 + 20
7.84 000.49 N m (80 5
•
0 0
+ 1.96 + 20
4.90 000.49 N m (50 5
•
0 0
+ 1.96
9.80 N m (100
000.49
•
0
+ +
1.96 N m (20
- 0.49 • - 5
+ +
2.94 N m (30
- 0.49 - 5
•
+
39.2 N m (400
- 0.98 •
+ 1.96
19.6 000.49 N m (200
•
0
SW
Connector
Noise
suppressor
Pillar terminal
Fig. 6
--- 4 ---
+ 17.4
kgf f cm, 69.4 334.3 in-lbs)
•
0
+ 17.4
kgf cm, 43.4 334.3 in-lbs)
•
0
+ 20 + 17.4
kgf cm, 86.8 in-lbs)
5 334.3
•
0 0
+
kgf cm, 17.4 in-lbs)
• - 4.3
+
kgf f cm, 26.0 in-lbs)
- 4.3
•
+ +
kgf f cm, 347.2 in-lbs)
- 10 • - 8.7
+ 20 + 17.4
5 kgf f cm, 173.6 334.3 in-lbs)
•
0 0
Brown
Plug
Blue