Maintenance
71
Pos : 25.13 /Ü berschrif ten/Ü berschrif ten 2/ A-E/ Anzugs drehmoment e über I nnensechs kant @ 45\ mod_1277106415765_78. doc @ 411230
10.4
Tightening Torques (Countersunk Screws)
Pos : 25.14 / BA/ Wart ung/Drehmomente / Anzugs moment e/Dr ehmoment e über Innens ec hs kant @ 45\ mod_1277106232328_78.doc @ 411205
The tightening torque M
A
is stated in Nm
(unless otherwise indicated).
A = Thread size
(The stability class can be seen on the head of the
screw.)
A
Ø
5.6
8.8
10.9
12.9
MA (Nm)
M 4
2.5
3.5
4.1
M 5
4.7
7
8
M 6
8
12
15
M 8
20
29
35
M 10
23
39
58
67
M 12
34
68
100
116
M 14
108
160
188
M 16
168
248
292
M 20
340
488
568
A
BM 400 0234
NOTE
The table above applies only to countersunk screws with hexagonal socket heads and metric
threading that are tightened by the hexagonal socket head.
Pos : 25.15 /Ü berschrif ten/Ü berschrif ten 3/ A-E/ Abweic hendes Drehmoment @ 0\ mod_1196950054171_78. doc @ 15312
10.4.1
Deviating Torque
Pos : 25.16 / BA/ Wart ung/Selbstf ahr er/Gr undmasc hine/ Abweic hendes Drehmoment Eas yCut @ 3\mod_1204885737515_78.doc @ 73465
Screws / nuts
MA [Nm]
Nut for cutting disc flange
850
Nut for shear protection (rotary hub)
300
Bearing housing for cutting disc
50
Bearing housing for blade drum
50
Pos : 25.17 / BA/ Wart ung/Mutt ern und Sc hrauben (50h) anzi ehen @ 0\ mod_1196949864530_78. doc @ 15293
Note
Regularly check that nuts and bolts are tightly in place (approx. every 50 hours) and tighten
them if necessary.
Pos : 25.18 / BA/-----Seit enumbruc h------ @ 0\ mod_1196175311226_0. doc @ 4165