- disconnect the wires from the battery terminals;
- remove the battery and pallet;
- remove the master brake cylinder as described above;
Pic. 9.28. Removing the steering wheel shaft: 1 - bolt
- unscrew bolt 1 (pic. 9.28) steering wheel shaft universal joint;
- remove the driveshaft steering (see section «Steering»), by removing the protective latch;
- disconnect the cable from the clutch pedal and remove it from the bulkhead;
- disconnect the vacuum hose;
Pic. 9.30. Removing the pedal assembly: 1 - nuts; 2 - pedal bracket; 3 - bolt; 4 - latches; 5 - axis; 6 - pin connector
- unscrew bolt 3 (see fig. 9.30);
- remove axle 5;
- disconnect a contact socket 6 of the switch of a signal of braking;
- having removed the latches 4, remove the bracket 2 of the pedal and move it aside;
Pic. 9.29. Removing the vacuum hose: 1 - vacuum hose; 2 - vacuum booster
Pic. 9.31. Removing the clamps of the vacuum booster studs: 1 - clamps
- remove the vacuum booster 2 through the engine compartment (pic. 9.29), having previously removed the clamps 1 from the studs of the amplifier (pic. 9.31);
- remove the gasket.
Install the vacuum brake booster in the following order:
- install a new gasket;
- replace axle 5 (see fig. 9.30) and lubricate it;
Pic. 9.27. Installation of the master brake cylinder: 1 - a rod of a vacuum brake booster; 2 - main brake cylinder; A = (22, 3±0,1) mm
- check if the vacuum booster rod moves freely. Check that distance A (see fig. 9.27) between the head of the pusher rod of the vacuum booster and the mating surface of the main brake cylinder during installation was (22,3±0,1) mm. Otherwise, check the condition of the brake pedal;
- carry out subsequent installation in the reverse order of removal, while the tightening torques of the bolt 1 (see fig. 9.28) — 25 Nm, bolts 3 (see fig. 9.30) - 8 Nm, nuts 1 - 20 Nm.