Fig. 6-22. Pressure regulator drive parts: 1 - pressure regulator; 2 - axis of the regulator drive lever; 3 - mudguard cap; 4 - locking plate; 5 - bolt with spring washer; 6 - rear axle beam; 7 - connecting rod of pressure regulator drive lever with rear axle bracket; 8 - nut of bolt 11; 9 - plastic sleeve; 10 - spacer sleeve; 11 - traction control bolt; 12 - pressure regulator drive lever; 13 - drive lever support sleeve; 14 - support sleeve bracket; 15 - washer, 16 - spring washer;. 17 - nut, 18 - support sleeve collar; 19 - bolt for fastening the clip to the bracket
Disconnect the muffler suspension parts from the body and move the pipeline with the mufflers to the side.
After unscrewing the bolts securing the regulator to the bracket and the bracket to the body, remove the regulator bracket, and then, lowering the regulator down, disconnect the pipes from it.
Remove the regulator and disconnect the drive lever from it. Plug the inlet and outlet openings of the pressure regulator and pipelines.
Install the pressure regulator in the reverse order of removal. Before tightening the regulator mounting bolts, install the 67.7820.9519 tool (see fig. 6-7). Direct the rod of the device upwards until it stops against the body. This sets the distance to 150±5 mm (see "Adjusting the position of the pressure regulator") between the end of lever 2 and the body side member
Lift the protective cap 3 (Fig. 6-22) and, turning the regulator on the mounting bolts, ensure that the end of the lever is in light contact with the regulator piston.
Holding the regulator in this position, tighten its mounting bolts to the limit, then coat the axle 2 and the protruding part of the piston with a layer of DT-1 or Ditor grease. Install the rubber cap 3 in place, putting 5-6 g of the same grease into it.
Remove the 67.7820.9519 tool and connect the end of the lever to the rod 7, having first coated the bushings of the hinge joint of the rod with the lever with DT-1 or Ditor grease.
Attach the exhaust system pipes to the body.
Bleed the brakes to remove air from the rear brake system.