Mounting And Dismounting The Wheel, Inspection Of Wheel Tightening - PRONAR PT512 Operator's Manual

CHAPTER 5
Unscrew nut (not less than 1/3 rotation) to cover the nearest thread groove
with alignment to opening in wheel stub axle. Wheel should rotate without
excessive resistance.
Secure castellated nut with a cotter pin and mount hub cover.
Delicately tap the hub with rubber or wooden hammer.
The wheel should turn smoothly without stiffness or detectable resistance not originating from
abrasion of brake shoes in brake drum. Adjustment of bearing play may only be conducted,
when the trailer is hitched to a tractor, and the loading case is empty.
TIP
If the wheel is dismounted, bearing play is easier to check and adjust.
5.2.5 MOUNTING AND DISMOUNTING THE WHEEL, INSPECTION OF WHEEL
TIGHTENING
Dismounting the wheel
Immobilize the trailer with the parking brake.
Place chocks under wheel that will not be dismounted.
Ensure that the trailer is properly secured and shall not move during wheel
dismounting.
Loosen wheel nuts according to sequence given in figure (5.3).
Place lifting jack and lift the trailer – figure (5.1).
Dismount the wheel.
Mounting the wheel
Remove dirt from axle pins and nuts.
Wheel should rotate with insignificant resistance. Do not apply
excessive pressure with regard for deterioration of bearing working
conditions.
5.7
Pronar PT512