Brake Pressure Regulator Adjustment: VANAGON
- Regulator is mounted on right rear frame. Raise and support vehicle. Connect two 1500 psi gauges, one to left front caliper, and other to left rear wheel cylinder. Bleed gauges, and depress brake pedal several times.
- Remove regulator attaching nuts. Remove regulator from mounting studs. Depress brake pedal until front gauge reads indicated pressure for first reading in Brake Pressure Chart.
- Maintain pressure, and tilt front of regulator down at a 30° angle. Increase pedal pressure until front gauge reads indicated pressure for second reading. Record rear gauge reading.NOTE: Do not damage brake lines when tilting regulator.
- If pressures are as specified in Brake Pressure Chart, return and secure regulator to proper position. Remove gauges, and bleed hydraulic system. If pressures are not as specified, replace regulator.
BRAKE PRESSURE CHART
| Application | Front Gauge psi (kg/cm2 ) | Rear Gauge psi (kg/cm2 ) | |
|---|---|---|---|
| Rabbit Pickup | |||
| 1st Reading | 725 (51) | 536-594 (38-42) | |
| 2nd Reading | 1450 (102) | 826-899 (58-63) | |
| Quantum | |||
| 1st Reading | 725 (51) | 457-566 (32-40) | |
| 2nd Reading | 1450 (102) | 725-914 (51-64) | |
| Vanagon | |||
| 1st Reading | 725 (51) | 725 (51) | |
| 2nd Reading | 1450 (102) | 798-943 (56-66) | |
| All Other Models | |||
| 1st Reading | 725 (51) | 449-507 (32-36) | |
| 2nd Reading | 1450 (102) | 768-826 (54-58) | |