Noblelift FE4P50N, Operation And Maintenance Manual

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(3) Wheel hub
Wheel Hub is fitted on kunckle by taper bearing, wheel is fitted on wheel hub by wheel rim,
there is oil seal inside of bearing to keep lubricate greese in cavity of wheel hub and kunckle.
There is nut to adjust bearing for elasticity.
3.4 Gist for adjustment and maintenance
(1) See figure 2-38, lubricate inner cavity of wheel hub, inside or outside bearing and cover
of wheel hub, meanwhile, lubricate oil seal
(2) Fit bearing outer ring on wheel hub and fit wheel hub on kunckle shaft.
(3) Fit washer and tighten castle nut, its tightening torque is 206-235N.m(21-24kgm),then
loose castle nut, tightening nut again, at this time, the torque is 9.8N.m(1kgm)
(4) Tap wheel hub gently by wood hammer and rotate wheel hub 3-4 circle to ensure there is
no loose of wheel hub.
(5) Tighten castle nut and make slot aim at split pin hole of kunckle
(6) Tap wheel hub gently by wood hammer again, rotate wheel hub 3-4 circle by hand to
ensure rotation stability, and measure rotation torque to ensure it between
2.94-7.8N
．
m(0.3-0.8kgm)
(7)
；
If rotation torque is more than standard value, you can untread 1
／
6 circle and then
measure rotation torque again.
(8) After rotation torque is regulated at its standard value, lock castle nut by split pin
figure 2-38 Adjustment for pretightening force
3.5 Inspection after rebuilding of steering system
(1) Run steering wheel right and left to its end to check if its running is uniformity and
stability
(2) Check up laying out of hydraulic pipeline and direction changing for mislaying
Jack rear wheel up, running steering wheel right and left slowly, repeating several times, exhaust
air out of hydraulic pipeline and oil cylinder
infuse lubricate grease