Assembling the inner cross head beam on the main girder

 

 

Inner connection console

*    Note the letter position marker A or B and find the cross head beam for the inner connection console.

*    Lay the cross head beam on the inner connection console.

 

 

 

Clamp brace

 

Mounting plate

 

 

Only for cranes of size 280 and 350

 

*    Do not move, dismantle or damage the clamp braces in the cross head beam.

 

*    Place the mounting plate in the cross head beam and hold it so the hole pattern properly overlaps.

 

 

High-tensile bolt with washer

 

*    Place the washers on the high-tensile bolts with the bevel (chamfered edge) to the head of the screw.

*    Insert the high-tensile bolts and washers from the outside into the screw holes and screw on so they are somewhat loose.

 

 

 

Central high-tensile bolt

Remaining high-tensile bolts

 

─     Only tighten high-tensile bolts with the appropriate torque wrench.

─     Do not use an impact wrench.

─     Do not tighten high-tensile bolts using turn-of-nut tightening.

*    Tighten the central high-tensile bolts on both sides (left and right on the cross head beam). Use a torque wrench to 300 Nm.

*    Next, tighten the remaining high-tensile bolts, alternating between left and right. Use a torque wrench to 300 Nm.

*    Then tighten all high-tensile bolts in the same sequence. Use a torque wrench to 450 Nm.

 

 

Note

 

Mark the high-tensile bolts with a permanent marker with a continuous line from the bolt head over the washer to the plate. This serves as proof that all high-tensile bolts have been tightened with tightening torque.

 

 

Sealing the access portal

Access portal

 

 

Cap

*    Seal the access portal with a cap.