Vane Pump: Disassembly

FIX VANE PUMP ASSEMBLY
1. Using SST, hold the vane pump in a vise.
  SST 09630-00014 (09631-00132)
  
  Fig 1: Holding Vane Pump In Vise Using SST
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK 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, measure the pump rotating torque.
  Standard rotating torque:
  
  0.3 N*m (2.8 kgf*cm, 2.4 in.*lbf) or less
  
  Fig 2: Checking Tightening Torque Using Wrench
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE POWER STEERING SUCTION PORT UNION
1. Remove the bolt.
2. Remove the O-ring from the union.
REMOVE FLOW CONTROL VALVE
1. Using a 27 mm socket wrench, remove the pressure port union from the front housing.
2. Using a screwdriver, remove the O-ring from the pressure port union.
3. Remove the flow control valve from the housing front.
4. Remove the compression spring from the front housing.
  
  Fig 3: Identifying Flow Control Valve
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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
1. Using a screwdriver, remove the snap ring from the vane pump shaft.
  NOTE: Be careful not to drop the plate.
REMOVE SIDE PLATE
REMOVE VANE PUMP SHAFT WITH PUMP PULLEY

Fig 4: Removing Snap Ring From Vane Pump Shaft Using Screwdriver
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002