P 1
5
/ 1
7
R
epair
Crank housing cover
Barrel complete
Crank housing
Gear housing
Motor housing
15
19
63
Fasten the specific bolts and screws to the appropriated torques. (Fig.34)
Item No.
Fastening torque
Q’ty
Description
15
1
3 - 3.5 N.m
M5x25 Hex socket head bolt
19
4
30 - 40 N.m
M8x35 Hex socket head bolt
63
6
4.0- 4.5 N.m
M6x40 H. S. button head screw
Fig. 34
[4] MAINTENANCE PROGRAM
[3] DISASSEMBLY/ASSEMBLY
[3]-8 Fastening torque
When replacing carbon brush, it is recommended to replace the following parts at the same time for longer service life
of the machine. (Fig. 35)
Be sure to apply the appropriate greases to the specific portions. Refer to Figs. 4, 5 and 6.
1
21
23
Flat washer 39
Chuck cover
Barrel complete
Tool holder
Impact bolt
25
Item No.
Item No.
Descriptions
Descriptions
26
27
33
38
40
30
Striker
Shoulder sleeve
Piston
1
21
23
25
26
Tool holder cap
Rubber ring 39
O ring 35.5 on Tool holder
X ring 21 on Impact bolt
Fluoride ring 28 on Impact bolt
27
30
33
38
40
O ring 23 on Impact bolt
Rubber ring 24
O ring 31.5 on Striker
O ring 31.5 on Piston
O ring 35 on Piston
Fig. 35
