Hydraulic Accumulator Test
Discharge hydraulic accumulator by pumping brake pedal at least 20 times with engine off. With 0-1000 psi pressure gauge installed in place of pressure switch, start engine. See HYDRAULIC ACCUMULATOR PRESSURE SPECIFICATIONS table. If pressure does not immediately rise to specification, hydraulic accumulator is faulty and should be replaced. See HYDRAULIC BRAKE ACCUMULATOR under REMOVAL & INSTALLATION.
HYDRAULIC ACCUMULATOR PRESSURE SPECIFICATIONS
| Ambient Air Temperature °F (°C) | psi (kg/cm2 ) |
|---|---|
| 50 (10) | 141-363 (9.9-25.5) |
| 68 (20) | 145-377 (10.2-26.5) |
| 86 (30) | 149-402 (10.5-28.2) |