Note: To secure the shock absorber and its parts in a vice, use special jaws 67.7824.9513-001.
Having pulled the shock absorber rod out to the stop, unscrew the nut 29 (fig. 4-18) of the reservoir with the A.57034/R key, remove the working cylinder 21 from the reservoir together with the rod and compression valve 2. Release the reservoir from the vice and drain the liquid from it.
Using key 67.7824.9513-005, remove guide 23 of the rod from the working cylinder. Remove rod 20 from the cylinder together with piston 10 and drain the fluid. Carefully, using a special mandrel, knock out housing 2 of the compression valve together with the parts from the cylinder.
Place the rod assembly with the piston in the jaws, clamp it in a vice and unscrew the nut 8 of the recoil valve. Remove the piston 10 with the valves (bypass and recoil), guide bushing 23 of the rod, seal 26 of the rod, collar 25 of the seal and other parts.
Note: For the front suspension shock absorber, to facilitate inspection of the surface of the rod covered by the casing, it is recommended to press the casing off the rod.
Disassemble the compression valve by removing the sleeve 6 and then sequentially removing the spring 5, plate 7 and valve discs 4 and 3 from the housing 2.
Assembling the shock absorber carry out the disassembly in the reverse order, taking into account the following:
- after assembling the compression valve, make sure that there is free movement of the plate 7 and the valve discs;
- press clip 6 onto body 2 using a special mandrel;
- press the compression valve into the cylinder using mandrel 67.7824.9513-004;
- to facilitate assembly of parts located on the rod, use guide 67.7824.9513-003;
- the throttle disc 15 of the front shock absorber has two grooves along the outer diameter, and the throttle disc of the rear shock absorber has three;
- tighten the rebound valve nut to a torque of 11.76-15.68 N·m (1.2-1.6 kgf·m);
- tighten the reservoir nut with wrench 67.7824.9513-002 to a torque of 68.6-88.2 N·m (7-9 kgf·m).