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STEERING
•
PUMP SERVICE DIAGNOSIS (CONT'D)
CONDITION
P O S S I B L E C A U S E
C O R R E C T I O N
LOW PUMP PRESSURE
(1) Flow control valve stuck or inoperative.
(2) Pump pressure plate not seating (flat) against
cam ring.
(3) Extreme wear of cam ring.
(4) Scored pressure plate, thrust plate, or rotor.
(5) Vanes not installed properly.
(6) Vanes sticking in rotor slots.
(7) Cracked or broken thrust or pressure plate.
(1) Remove burrs or dirt. Replace valve if
damaged.
(2) Disassemble pump and correct.
(3) Replace parts. Flush system.
(4) Replace parts. Flush system.
(5) Install properly.
(6) Freeup by removing burrs, varnish, or dirt.
(7) Replace part.
J8919-70
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