Hydraulic System Pressure Test
- Connect a pressure gauge between steering pump and steering gear with valve of gauge toward steering gear side. See Fig 1
.
- Bleed air from system. Open valve. Start engine and let idle. Turn steering wheel lock-to-lock to increase fluid temperature to 122-140°F (50-60°C). Completely close gauge valve for 15 seconds, increase engine speed to 1000-1500 RPM and check gauge reading. See HYDRAULIC SYSTEM FLUID PRESSURE SPECIFICATIONS
table.
NOTE:
Leaving gauge valve closed for more than 15 seconds will increase fluid temperature and could damage oil pump.
- To measure fluid pressure generated at gear housing, first open gauge valve completely, increase engine speed to 1000-1500 RPM and turn steering wheel from lock-to-lock. Do not keep steering wheel fully turned for more than 10 seconds. See HYDRAULIC SYSTEM FLUID PRESSURE SPECIFICATIONS
table.
HYDRAULIC SYSTEM FLUID PRESSURE SPECIFICATIONS
| Application |
Pressure psi (kg/cm2
) |
| B2200 |
1244-1350 (87.5-95) |
| B2600i |
1351-1422 (95-100) |
Courtesy of MAZDA MOTORS CORP.