Installing the slewing gear unit on the jib arm

Only with sizes 273, 323, 355, 406, 457

 

This section only applies for pillars with a diameter of 273, 323, 355, 406 or 457. The jib bracket has an angled lower edge, onto which the slewing gear unit is installed.

The figure shows the installation of a slewing gear unit with a slewing drive. The installation of a slewing gear unit without a slewing drive is, essentially, no different.

 

Upper fillister-head screws (2x)	Side fillister-head screws (4x)
Slewing gear unit	Jib bracket

    Lift the slewing gear unit under the jib bracket.

    Screw the slewing gear unit in place using fillister-head screws and washers.

Size	Upper fillister-head screws (2x)	Tightening torque for the upper fillister-head screws	Side fillister-head screws (4x)	Tightening torque for the side fillister-head screws
273	M12x30	85 Nm	M10x30	49 Nm
323 - 457	M16x40	200 Nm	M12x30	85 Nm

 

Only with sizes 558, 660, 762

 

This section only applies for pillars with a diameter of 558, 660 or 762. The jib bracket has a straight lower edge, onto which the slewing gear unit is installed.

The figure shows the installation of a slewing gear unit with a slewing drive. The installation of a slewing gear unit without a slewing drive is, essentially, no different.

 

Lock nut	Supporting roll axle
Fillister-head screw with washer	Hexagonal nut with washer

    Lift the slewing gear unit under the jib bracket.

    Front: screw the slewing gear unit in place using fillister-head screws and washers.

    Rear: screw the axle for the supporting rolls in place: put the washer on, screw on the hexagonal nut, screw on the lock nut.

Size	Fillister-head screws (front)	Tightening torque for the fillister-head screws (front)	Hexagonal nut (rear)	Tightening torque of hexagonal nut (rear)
558	M24x50	215 Nm	M30	500 Nm
660	M24x50	215 Nm	M30	500 Nm
762	M27x70	370 Nm	M36	870 Nm