With ABS
- Connect the gauge set. See Fig 1.
- Bleed the brake system. See BLEEDING BRAKE SYSTEM .
- Press brake pedal until first brake pressure specification is within specified range. See PROPORTIONING VALVE TEST SPECIFICATIONS . Press brake pedal until second brake pressure specification is within specified range. If pressures are not as specified, replace the brake pressure differential valve.
PROPORTIONING VALVE TEST SPECIFICATIONS
| Application | Outlet Pressure - psi (kPa) | |
|---|---|---|
| First Pressure | ||
| Front | 427 (2942) | |
| Rear | 384-469 (2648-3236) | |
| Second Pressure | ||
| Front | 853 (5886) | |
| Rear | 498-611 (3432-4217) | |