Makita HM1304 Technical Information page 11

R
epair
< 13 > Fastening torque for bolts and screws
When assembling, fasten the bolts and screws with the following fastening torque.
3
The parts in
crank housing
Bearing box
Crank shaft
49
Hex socket head bolt M8x30
3
Hex socket head bolt M10x40
30
Hex socket head bolt M6x22
44
49 Hex socket head bolt M6x18
53
Crank cap
Hex socket head bolt M6x50
61
Hex socket head bolt M6x45
75
Hex socket head bolt M6x50
86
Hex socket head bolt M6x40
105
< 14 > it is recommended to replace the following parts with the fresh ones, when you replace the carbon brushes
normally worn out. See Fig. 42.
26
Striker
30
44
Needle bearing
1715
Fig. 41
6 pcs.
4 pcs.
4 pcs.
1 pc.
1 pc.
4 pcs.
4 pcs.
2 pcs.
2 pcs.
Tool guide Seal holder
7
22
19
Piston
Fig. 42
75
30
86
53
29 - 39 N.m (300 - 400kgf.cm)
49 - 59 N.m (500 - 600kgf.cm)
13 - 16 N.m (130 - 160kgf.cm)
13 - 16 N.m (130 - 160kgf.cm)
10 - 15 N.m (100 - 150kgf.cm)
3.9 - 5.9 N.m (40 - 60kgf.cm)
13 - 16 N.m (130 - 160kgf.cm)
3.9 - 5.9 N.m (40 - 60kgf.cm)
3.9 - 5.9 N.m (40 - 60kgf.cm)
15
7
O Ring 24 for tool guide
15 X Ring 30 for seal holder
O Ring 47 for piston
19
22 O Ring 44 for piston
26 O Ring 44 for striker
86
105
61
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