Power Steering Vane Pump: Disassembly

NOTE: When using a vise, do not overtighten it.

MEASURE PS VANE PUMP ROTATING TORQUE
1. Check that the pump rotates smoothly without abnormal noise.
2. Using a torque wrench, check the pump rotating torque.
  Rotating torque:
  
  0.25 N.m (2.5 kgf.cm, 2.2 in.lbf) or less
Fig 1: Measuring Vane Pump Rotating Torque
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE VANE PUMP PULLEY
Using SST, stop the pulley rotating and remove the pulley set nut.

SST 09960-10010 (09962-01000, 09963-01000)
REMOVE OIL RESERVOIR
1. Remove the 3 bolts and oil reservoir.
2. Remove the O-ring from the oil reservoir.
REMOVE PRESSURE PORT UNION, FLOW CONTROL VALVE AND SPRING
1. Remove the pressure port union, flow control valve and spring.
2. Remove the O-ring from the pressure port union.
REMOVE REAR HOUSING
1. Remove the 2 bolts and rear housing.
2. Remove the 2 O-rings from the rear housing.
REMOVE WAVE WASHER
REMOVE SIDE PLATE
REMOVE CAM RING, 10 VANE PLATES AND VANE PUMP ROTOR
NOTE: Be careful not to drop the vane plate.
REMOVE 2 STRAIGHT PINS
Remove the 2 straight pins from the front housing.
REMOVE VANE PUMP SHAFT WITH BEARING
1. Using snap ring pliers, remove the snap ring from the front housing.
2. To prevent oil seal lip damage, wind vinyl tape on the serrated part of the vane pump shaft.
3. Press out the vane pump shaft with the bearing.
NOTE: Be careful not to damage the oil seal lip.

Fig 3: Removing Vane Pump Shaft With Bearing
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002