Mounting And Dismounting Wheel, Inspection Of Wheel Nut Tightening - PRONAR T663/1 Operator's Manual

SECTION 5
Undo nut (not less than 1/3 rotation) to align the nearest thread groove with
the opening in wheel axle pin. Wheel should rotate without excessive
resistance.
Secure castellated nut with cotter pin and mount the hub cap.
Delicately tap the hub cap with rubber or wooden mallet.
The wheel should turn smoothly without stiffness or detectable resistance not originating from
abrasion of brake shoes in brake drum. Adjustment of bearing slackness may only be
conducted when the trailer is hitched to tractor and the load box is empty.
TIP
If the wheel is dismounted, bearing slackness is easy to check and adjust.
5.2.5 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL NUT
TIGHTENING
Wheel dismounting
Immobilise trailer with parking brake.
Place chocks under the wheel that will not be dismounted.
Ensure that trailer shall not move during wheel dismounting.
Loosen wheel nuts according to sequence given in figure (5.3).
Place lifting jack and lift the trailer.
Dismount wheel.
Wheel mounting
Clean axle pins and nuts of contamination.
Check condition of pins and nuts, if necessary replace them.
The nut must not be excessively tightened. Do not apply excessive
pressure because working conditions of the bearings may deteriorate.
Do not grease thread of nuts and pins.
5.7
Pronar T663/1 T663/1 SILO