Maintenance and servicing
12.7
Screw connections
Check bolts and nuts for the first time after five hours of operation and then
tighten them regularly (every 50 hours of operation).
All torques M
A
are standard values for metric standard threads according to DIN.
Friction coefficient 0.14 - new bolts - unlubricated. The values were
recommended as guide values by different bolt manufacturers. We cannot
assume liability for use.
Self-locking nuts must be replaced after each dismantling.
12.8
Fuse replacement
The machine is protected by a fuse. The fuse slot
on the
WR 870 Battery
is located on the handle in
the switch housing.
60 Ampere fuse
Fig. 26 - Fuse
Thread
3.6
5.6
6.8
8.8
10.9
12.9
M6
3.43
4.51
8.73
10.3
14.71
17.65
M8
8.24
10.79
21.57
25.50
35.30
42.17
M10
16.67
21.57
42.17
50.01
70.61
85.32
M12
28.44
38.25
73.55
87.28
122.58
147.10
M14
45.11
60.80
116.70
135.27
194.17
235.36
M16
69.63
93.16
178.46
210.84
299.10
357.94
M18
95.13
127.40
245.17
289.30
411.88
490.34
M20
135.33
180.44
348.14
411.88
576.50
669.26
M22
162.40
245.17
470.72
558.98
784.45
941.44
Page
41
of
59
After each use, connect the WR 870 Battery to the charger
