Section of the steering gear housing
1 – Bipod shaft adjusting screw plate; 2 – adjusting screw of the bipod shaft; 3 – adjusting screw nut; 4 – oil filler plug; 5 – mechanism housing cover; 6 - worm; 7 – steering gear housing; 8 – bipod; 9 – nut for fastening the bipod to the shaft; 10 – spring washer for bipod mounting nut; 11 – knuckle shaft seal; 12 – bronze sleeve of the bipod shaft; 13 – bipod shaft; 14 – roller of the bipod shaft; 15 – worm shaft; 16 – upper ball bearing; 17 – lower ball bearing; 18 – adjusting shims; 19 – lower worm bearing cover; 20 – roller axis; 21 – needle bearing; 22 – worm shaft seal
1. Set the front wheels to the straight-ahead position and, by turning the steering wheel in both directions, check whether the distance between the end of the crankcase 7 changes (see fig. Section of steering gear housing) steering gear and the shaft end. A change in distance is an indication of clearance in the worm bearings.
2. To adjust the clearance in the worm bearings, turn the steering wheel to the left by 1–1.5 turns, unscrew the lower cover mounting bolts 19 and drain the oil from the steering gear housing.
3. Remove the bottom cover, remove one of the adjusting shims 18 or replace it with a thinner one.
Attention! Adjusting shims are supplied as spare parts with a thickness of 0.10 and 0.15 mm.
4. Having secured the lower cover, check again for axial movement of the worm in the bearings. If there is no movement, pour 0.215 l of TAD-17i transmission oil into the steering gear housing.
5. Check the steering wheel turning force by placing the front wheels on a smooth tile. It should not exceed 245 N (25 kgf).