Manitowoc Grove GMK6300L-1

Maintenance work on the superstructure
8.8 Slewing bearing
13.02.2018
Maintenance manual 3 302 719 en 8 - 61
GMK6300L-1
8.8.4 Measuring tilting play
Reducing the
interval
• When after several years of intensive crane operation, half of the value for
the maximum permissible tilting play is reached, then you must reduce
the maintenance interval.
• Measure the tilting play from then on every three months (M 3).
Spare parts and
tool
s
– Dial gauge (precision 0.01 mm (0.00039 in)) with tripod.
– Measurement report from when the truck crane was put into operation;
à Delivery receipt.
Prerequisites – The slewing bearing must have been previously checked for tightness;
à Checking the screws, p. 8 - 53.
– The truck crane must be rigged with an outrigger span of at least
8.70 x 5.
00 m (28.5 x 16.4 ft) and must be level;
à Manual de instrucciones.
– The counterweight combination 35.5 t (78,200 lbs) must be rigged
according to the
lifting capacity table and equipment on the truck crane.
– The lattice extension must be removed.
– The auxiliary hoist must be removed.
– The main boom must be telescoped to 0-0-1-0-0-0.
– The current load must not exceed 1 t (2,200 lbs)
– if ne
cessary unreeve
the hook block.
Type The truck crane GMK6300L-1 is equipped with a slewing bearing of the
bearing type: RDV, three rows.
s
M 6
Type of slewing bearing GROVE part number
Roller slewing bearing
Bearing type: RDV, three rows
03295952
Model plate: Inside the inner ring.