The hydraulically actuated service brake system with diagonally split "X" circuits controls the pressure in two circuits:
1st: front right front and left rear wheels;
2nd: rear right rear and left front wheels.
- Connect two pressure gauges to the front right and rear left bleeder nipples.
- Bleed the brake system.
- Press the brake pedal until the specified pressure is created in the front brake mechanisms. Check the pressure in the rear brake mechanisms.
- If the values are incorrect, adjust the pressure regulator.
- To detect possible asymmetry, check the second circuit of the brake system.
- Remove the pressure gauges.
- Bleed the brake system.
Fig. 12.28. Adjusting the position of the pressure regulator: 1 - Pre-adjustment feeler gauge; 2 - preliminary adjustment nut; 3 - lock nut
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