|
|
Check the high-tensile bolts. The high-tensile
bolts must meet these requirements:
|
|
Material |
Size |
Lubrication |
|
High-tensile bolt (hexagonal) |
10.9 |
M20 |
|
|
Washer |
C 45 |
HV 21 |
MoS2 |
|
High-tensile nut (hexagonal) |
10 |
M20 |
MoS2 |
─ The high-tensile bolts and mounting plate with high-tensile nuts may only be installed with tightening torque a maximum of two times. If they are installed more than twice with tightening torque, the high-tensile bolts as well as the mounting plates with the high-tensile nuts must be scrapped.
Should it be necessary to loosen the high-tensile bolts during installation, the same high-tensile bolts can be reused a maximum of one more time, otherwise the lubrication will no longer be sufficient!
The high-tensile nuts and washers must be galvanised and lubricated with MoS2.
─ High-tensile bolts which have been installed on a crane for a lengthier period may not be used again.
|
End carriages |
Type and size |
Number |
Tightening torque |
|
160 |
High-tensile bolts |
6 |
450 Nm |
|
200 |
High-tensile bolts |
8 |
450 Nm |
|
280 |
High-tensile bolts |
12 |
450 Nm |
|
350 |
High-tensile bolts |
12 |
450 Nm |
|
420 |
High-tensile bolts |
16 |
450 Nm |
|
|
|
Threaded bracket |
Type and size |
Number |
Tightening torque |
|
M8 |
Rib nut M8 |
2x |
25 Nm |
|
M10 |
Rib nut M10 |
2x |
50 Nm |
|
M12 |
Rib nut M12 |
2x |
75 Nm |
|
|
─ 4x per pipe clamp
─ 15 Nm
|
|
─ 4x per pipe clamp
─ 15 Nm
