Removal and installation of the automatic hub lock is described below. It should be noted that the functioning and wear of the mechanisms in question can only be checked in a car repair shop.
1. Set the transfer case gear selector lever to the "2H" position
2. Move the vehicle about a meter forward and backward to release the hub lock.
3. Further disassembly is carried out in accordance with the illustration. Remove the six bolts and remove the cover and hub housing.
4. Remove the retaining ring
5. Remove the compensation washers and the drive shaft coupling.
6. If there is a suspicion that the hub lock is faulty, it must be taken to a car repair shop for repair.
Note: With the hub lock removed, the wheel bearing tightness can be checked. See description below.
The hub lock is installed as follows:
1. Insert the inner cam and spring.
2. Direct the spring on the cam with the groove towards the steering knuckle.
3. Ensure that the cam is fully seated against the lock washer. A hammer can be used, but care must be taken not to damage the cam teeth.
4. To achieve the clearance specified below, the shaft must be completely pulled out of the hub.
5. Check that the gauge is fully seated against the lock washer. To do this, put the KM-747 gauge on the shaft
6. As shown in the illustration, install the KM-748 tool on the shaft and pull it out completely.
7. Measure the clearance between the installed stop and the groove for the snap ring in the drive shaft. The gap should be 0 - 0.1 mm. The gap can be adjusted by installing compensation washers with a thickness of 0.1 mm.
8. After measuring, remove the gauge. The inner cam remains intact.
9. Lubricate the drive shaft, clutch teeth, housing and hub cover with special grease "HD2" (94 171 686).
10. Eight grams of grease are introduced into the hub body, five grams into the cover. Do not add excess lubricant under any circumstances, as this may interfere with the normal operation of the clutch.
11. Install the coupling.
12. The notch in the spacer ring must be aligned with the tooth on the inner cam. Align the teeth of the clutch and the inner cam by turning the drive shaft. Assembly is carried out in accordance with the illustration.
13. Install the selected compensation washers onto the end of the drive shaft.
15. Insert a new retaining ring into the groove.
16. Make sure the snap ring fits securely in the groove as the hub assembly is under significant load.
17. In auto repair shops, the tool shown in the illustration is used for this purpose.
18. Lubricate the contact areas of the hub body and cover with sealant.
19. Rotate the body (easy turning means correct choice of compensation washers).
20. Put the lid on.
21. Tighten the mounting bolts to a torque of 60 Nm.
[Article posted on an online resource: www.opelbook.ru]
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