61
Fig. 9.25 Rear wheel hub:
1 - wheel; 2 - hub bolt; 3 - wheel nut; 4 - adjusting nut; 5 -axle shaft mounting bolt ; 6 - lock washer; 7 - lock nut; 8 - thrust washer; 9 - axle shaft; 10 -
center pin; 11 - gasket; 12 - bearing; 13 - hub; 14 - thrust ring; 15 - brake drum; 16 - trigger wheel (for vehicles with ABS); 17 - sensor ABS; 18 - thrust
washer; 19 - collar
10. Install the rear axle shaft or put the front axle hub flange, clean the screwed part of the bolts from sealant
residues, degrease and apply a new layer of UG-6 sealant, tighten the bolts.
When checking the adjustment of bearings for heating, do not use the service brakes, as the hubs can heat up from
the discs and brake drums.
CONTROL SYSTEM
Steering system
CAUTION! When the hydraulic booster fails, the force required to turn the steering wheel increases.
It is forbidden to turn off the ignition and remove the key from the ignition switch when the vehicle is moving. When
the ignition key is removed, the steering shaft is blocked by an anti-theft device and the vehicle becomes uncontrollable.
In case of steering malfunction, further driving or towing the vehicle with the use of a flexible towing coupler is
prohibited. In this case, tow the vehicle with the use of partial loading or breakdown truck.
In order to avoid failure of the power steering pump and overheating of the oil, it is not recommended to hold the
steering wheel in extreme positions for more than 20 seconds.
Steering service includes periodic tightening of the bolts fixing the steering mechanism to the bracket, checking of
the steering rod connections, bipod connection, swivel arm connection, checking the free play of the steering wheel,
adjustment of the steering mechanism, timely filling of the oil in the oil reservoir of the power steering system.
Periodically check the tightness of the rod ends and steering rod locknuts and keep the tapered joints of the links and
pins free of play.
The vehicle is equipped with maintenance-free steering linkage ends. Maintenance-free ends do not require
adjustment or lubrication during operation. If there is a gap in maintenance-free ends, it is necessary to replace them.
Perform the first re-tightening of the steering mechanism after 500 km mileage and subsequently according to the
warranty and service book.
The total clearance must be checked when the engine is running at idle. The condition of the steering mechanism is
considered norm
al and does not require adjustment if the total play of the steering wheel does not exceed 20°, which
corresponds to 74 mm as measured at the wheel rim.
If the total play exceeds the permissible value, it is necessary to determine which node is responsible for the
increased play, for this check the reliability of tightening (see Annex 2) of bolts and nuts fastening the crankcase steering
mechanism, the condition of joints of steering rods, tightening of nuts (bolts) fastening the cardan shaft, gaps in joints and
spline joints of cardan shaft of the steering column, as well as any gaps in the steering mechanism.
If you find a radial play in the joint of the cardan shaft of steering mechanism (axial displacement of the crossarm in
