Checking Pump Pressure
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- Close valve (A) and open valve (B). See Fig 1.
- Start engine. Ensure correct hydraulic fluid level in tank.
- Heat hydraulic fluid to approximately 122° F (50° C) by moving steering wheel at increased engine speed.
- Close valve (B) for a maximum 10 seconds and read off pressure. If pressure exceeds 1595 psi (110-120 bar) by more than 10 percent replace vane pump. If pressure is 10 percent less than 1595 psi 1595 psi (110-120 bar), check ribbed V-belt tension. If tension is OK, replace vane pump.
- Connect pressure line after removing special tool. Tighten to specification. See TORQUE SPECIFICATIONS .
- Bleed hydraulic system. See BLEEDING POWER STEERING SYSTEM under LUBRICATION.