Ma in t e n an c e | Ove r vi e w of s cre w t i gh t eni n g to r q u e s
89
ONLY FOR TWIN-FALL CHAIN
HOISTS
BOTTOM BLOCK
Size
Type, size and
length
Number
Tightening
torque
GM2 Fillister-head screw with
self-locking nut M6x30
2x 10 Nm
GM4 Fillister-head screw with
self-locking nut M8x35
2x 25 Nm
GM6 Fillister-head screw with
self-locking nut M10x45
2x 36 Nm
GM8 Fillister-head screw with
self-locking nut M12x75
2x 49 Nm
ONLY FOR SINGLE-FALL CHAIN
HOISTS
HOOK ASSEMBLY
Size
Type, size and
length
Number
Tightening
torque
GM2 Fillister-head screw with
self-locking nut M6x25
2x 10 Nm
GM4 Fillister-head screw with
self-locking nut M6x25
2x 10 Nm
GM6 Fillister-head screw with
self-locking nut M6x45
2x 12 Nm
GM8 Fillister-head screw with
self-locking nut M8x50
2x 30 Nm
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