Examination
To check the operation of the pressure regulator, press and quickly release the brake pedal (the vehicle must be on wheels). The assistant at this time should monitor the pressure regulator (2). If the control lever (1) does not move, the regulator is defective and must be replaced (3 - spring; 4 - nut; 5 - roller).
Adjustment
1. If necessary, add fluid or bleed the brake system.
2. Raise and support the rear of the vehicle so that the rear suspension is completely unloaded.
3. Move the lever towards the rear of the vehicle until it stops and loosen the spring fastening nut.
4. Install the roller so that the spring is not stretched and at the same time does not sag. Then tighten the nut to 25 Nm (2.5 kgf·m).
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