UAZ PICKUP - Page 156

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If the backlash is higher than the permissible level, nd the
unit which is causing the increased play. Therefore the following
should be checked: proper tightening (see Annex 2) of the steering
box bolts, the tie rod joints, tightening of the lower propeller shaft
joints, air gaps in the joints and spline coupling of the steering
column propeller shaft, air gaps in spline coupling of the lower
propeller shaft, and air gaps in the steering mechanism.
Tie rod joints do not require adjustment and lubrication
during vehicle operation. If non-repairable joints have an air
gap, replace them.
If a radial air gap in the propeller joints of the lower steering
shaft or in the joint of the steering shaft is detected, replace the
lower propeller shaft and (or) steering column.
If air gaps in the steering mechanism are detected, adjust the
mechanism at UAZ service station.
Tension of power steering pump drive belt see section “Engine
cooling system”.
Replace the belt if damages or excessive stretch are detected.
Hydraulic power steering oil level check and change (to
avoid pump seizure as a result of under-lling of the necessary
oil volume, this procedure should be caried out by two persons).
To check the oil level in the oil tank 1 (Fig. 9.20), the position
of the front wheels must be straight. The oil level should coincide
with the lter screen in the tank (when the engine is heated, the
oil level can be up to 7 mm higher than the screen). Run the oil
beforehand through the lter with the maximum ltration neness
not more than 40 microns.
Procedure for lling the hydraulic system:
1. Disconnect the drag link from the drop arm and lift the front
wheels with a jack.
2. Open the bleeder valve, located on the cap of the steering
drop arm shaft (unscrew one turn), put the one tube end on the
valve and drop into a small vessel with oil (the tube end should
be dipped into the oil).