Danger of fatal injury!
The crane and the load can fall if the end carriages are not correctly screwed onto the main girders. Prepare and screw in the screws carefully!
The upper end carriage, inner cross head beam and outer cross head beam are bolted together with the high-tensile bolts.
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Danger of fatal injury! The crane and the load can fall if the end carriages are not correctly screwed onto the main girders. Prepare and screw in the screws carefully! |
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Residual paint |
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Joint face | |
Thoroughly clean the joint
faces on the entire surface. There should not be any rust, dirt, paint or
similar impurities on them.
Check the high-tensile bolts. The high-tensile bolts must
meet these requirements:
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Material |
Size |
Lubrication |
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High-tensile bolt (hexagonal) |
10.9 |
M20 |
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Washer |
C 45 |
HV 21 |
MoS2 |
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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.
