102
Maintenance
Screw connections
Retighten screws
All screws have to be retightened:
•
after the first few operating hours
•
depending on the frequency of use
•
but at least once a season
Tightening torques in ge-
neral
Tighten all threaded connections in accordance with the information in
the table. If different tightening torques are necessary, they are speci-
fied in the chapter »Maintenance«. The minimum quality of the bolts
is 8.8.
Tightening torques in Nm
Screw size
Quality of the screws
„8.8“
„10.9“
„12.9“
M6
9.9
14
17
M8
24
34
41
M10
48
68
81
M12
85
120
145
M16
210
290
350
M20
425
610
710
M24
730
1050
1220