Power Steering Vane Pump: Disassembly

FIX VANE PUMP ASSEMBLY
Using SST, hold the vane assembly in a vise.

SST 09630-00014 (09631-00132)

Fig 1: Fixing Vane Pump Assembly In A Vise
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
MEASURE PS VANE PUMP ROTATING TORQUE
1. Check that the pump rotates smoothly without abnormal noise.
2. Temporarily install the bolt to the shaft.
3. Using a torque wrench, check the pump rotating torque.
Rotating torque:

0.3 N.m (2.8 kgf.cm, 2.4 in.lbf) or less
REMOVE SUCTION PORT UNION
1. Remove the bolt.
2. Remove the O-ring from the union.
REMOVE PRESSURE PORT UNION, FLOW CONTROL VALVE AND SPRING
Remove the O-ring from the union.
REMOVE REAR HOUSING
1. Loosen the 4 bolts.
2. Remove the vane pump assembly from the SST.
3. Remove the 4 bolts and rear housing.
4. Remove the gasket from the housing.
REMOVE CAM RING, 10 VANE PLATES AND VANE PUMP ROTOR
Using a screwdriver, remove the snap ring from the vane pump shaft.

Fig 3: Removing Snap Ring from Vane Pump Shaft
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE: Be careful not to drop the plate.
REMOVE SIDE PLATE
REMOVE VANE PUMP SHAFT WITH PUMP PULLEY