Lada Niva, Руководство по обслуживанию

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Lada Niva Manual - Maintenance Page 15
1. Make sure that the bearings of the front wheel hubs are adjusted properly and the tyre
inflation pressure is normal.
2. Turning the steering wheel in either direction, check for knocking in the joints, steering
mechanism and connections. Check and tighten, if necessary, the fastenings of the pitman
arm, steering gear case, brackets of the idler arm and steering shaft.
3. Rocking the steering wheel hand-feel the steering rod ball joints for play.
4. Make sure the ball supports and the joints of the front suspension wishbones are in
serviceable condition.
5. Eliminate the faults detected and check steering wheel play. If steering wheel play exceeds
the permissible value, check and adjust the following clearances in the steering mechanism:
Clearance in the worm bearings that is found by axial movement of the
steering shaft while turning the steering wheel leftward and rightward
through a small angle; eliminate the clearance by decreasing the number
of shims 3 (Fig. 50) placed between the case and the thrust bearing
cover until the shaft rotates easily without axial displacement;
Roller-to-worm backlash which is found by rocking the pitman arm
head, with the rods disconnected, with the car wheels in the straight
ahead (neutral) position; eliminate backlash by turning in screw 1,
with nut 2 loosened and the pitman arm in the neutral position;
adjustment over, tighten nut 2; there should be no backlash between the roller and worm when
the steering wheel is turned through 30" to the right or to the left from the neutral position.
Front Wheel Hub Bearings
Fig. 51. Front Wheel:
1 - brake disc; 2 - hub; 3 - outer roller bearing; 4 - outer seal protective ring; 5 - outer seal; 6 -
tapered bushing; 7 - hub nut; 8 - hub cap; 9 - propeller shaft drive end; 10 - outer seal demounting ring; 11 - inner
roller bearing; 12 - inner seel demounting ring; 13 - inner seal; 14 - inner real protective ring; 15 - steering knuckle;
Fig 50. Adjusting clearances in
steering mechanisms.
1- screw, 2-
nut, 3- shims