Adjustment Of Wheel Axle Bearings Looseness - PRONAR T683 Operator's Manual

Pronar T683
Check condition of hub cover, if necessary replace with new cover. Inspection of bearing
looseness may only be conducted, when the trailer is hitched to a tractor, and the load box is
empty.

5.2.4 ADJUSTMENT OF WHEEL AXLE BEARINGS LOOSENESS

Preparation procedures
Prepare tractor and trailer for adjustment procedures according with
description provided in section 5.2.3.
Adjustment of road wheel axle bearings
Take off hub cover (1) - figure (5.2).
Take out split cotter pin (3) securing castellated nut (2).
Tighten castellated nut in order to eliminate looseness.
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 with
insignificant resistance.
Secure castellated nut with cotter pin and mount hub cap.
Delicately tap hub cap 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 looseness may only be
conducted, when the trailer is hitched to a tractor, and the load box is empty.
TIP
If the wheel is dismounted, bearing looseness is easy to check and adjust.
Wheel should rotate with insignificant resistance.
Nut may not be excessively tightened. Do not apply excessive
pressure with regard for deterioration of bearing working conditions.
5.6
SECTION 5