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Relief Pressure Test
- Close gauge shutoff valve completely 3 times. Record highest
pressure attained each time.
- If recorded pressures are within specifications and range of
readings are within 50 psi (3.5 kg/cm2
), pump is working
properly. See POWER
STEERING PUMP PRESSURE TEST SPECIFICATIONS
table. If
recorded pressures are above specification and are not within 50 psi
(3 kg/cm2
) of each other, replace pump. If pressures are
within 50 psi (3 kg/cm2
) of each other, but below
specifications, replace pump. See POWER STEERING PUMP R & I.
- Open gauge shutoff valve. Turn steering wheel from stop to stop,
recording highest pressures at each extreme position. Replace steering
gear if pressures at each stop are not the same, there is an internal
leak within steering gear.
- Shut off engine and remove test gauge. Ensure "O" ring at end of
high pressure fitting (if equipped) is replaced before connecting
fitting to power steering pump. Connect pressure hoses and make any
needed repairs.