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Vane Pump: Reassembly

NOTE: When installing parts, coat the parts indicated by arrows with power steering fluid (POWER STEERING FLUID  ).
  1. INSTALL VANE PUMP HOUSING OIL SEAL 
    1. Coat a new vane pump housing oil seal lip with power steering fluid.
    2. Using SST and a press, install the vane pump housing oil seal until it is flush with the vane pump front housing end surface.

      SST 09950-60010 (09951-00280), 09950-70010 (09951-07100) 

      NOTE: Make sure that the oil seal is installed facing in the correct direction as shown in the illustration.
      Fig 1: Installing Vane Pump Housing Oil Seal
      G04978692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL VANE PUMP SHAFT WITH PULLEY 
    1. Coat the inside surface of the bushing in the vane pump front housing with power steering fluid.
    2. Gradually insert the vane pump shaft with pulley.
      NOTE: Do not damage the oil seal lip in the front housing.

      HINT:

      Wrap protective tape around the spline of the vane pump shaft with pulley in order to prevent damage to the oil seal.

      Fig 2: Inserting Vane Pump Shaft With Pulley In Vane Pump Front Housing
      G04978693Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL VANE PUMP FRONT SIDE PLATE 
    1. Coat a new O-ring with power steering fluid and install it into the vane pump front housing.
      Fig 3: Locating O-Ring
      G04978694Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Coat a new O-ring with power steering fluid and install it onto the vane pump front side plate.
      Fig 4: Locating O-Ring On Vane Pump Front Side Plate
      G04978695Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Align the notch of the vane pump front side plate with that of the vane pump front housing, and install the vane pump front side plate.
      NOTE: Make sure that the vane pump front side plate is installed facing in the correct direction.
      Fig 5: Aligning Notch Of Vane Pump Front Side Plate With That Of Vane Pump Front Housing
      G04978743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSTALL VANE PUMP CAM RING 
    1. Align the notch of the cam ring with that of the vane pump front side plate, and install the vane pump cam ring with the inscribed mark facing upward.
      NOTE: Make sure that the vane pump cam ring is installed facing in the correct direction.
      Fig 6: Aligning Notch Of Cam Ring With That Of Vane Pump Front Side Plate
      G04978697Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSTALL VANE PUMP ROTOR 
    1. Install the vane pump rotor.

      HINT:

      Vane pump rotor can be installed in both directions.

    2. Coat the 10 vane pump plates with power steering fluid.
      Fig 7: Identifying Vane Pump Rotor
      G04978698Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the vane pump plates with the round end facing outward.
      NOTE: Make sure that the vane pump plates are installed facing in the correct direction.
      Fig 8: Installing Vane Pump Plates
      G04978699Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSTALL VANE PUMP SHAFT SNAP RING 
    1. Using a screwdriver and a snap ring expander, install a new vane pump shaft snap ring onto the vane pump shaft with pulley.
      NOTE: Make sure that the vane pump shaft snap ring is securely installed in the vane pump shaft groove.
      Fig 9: Installing Vane Pump Shaft Snap Ring
      G04978700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSTALL VANE PUMP REAR HOUSING 
    1. Coat a new O-ring with power steering fluid and install it onto the vane pump rear housing.
      Fig 10: Identifying O-Ring On Pump Rear Housing
      G04978701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Align the straight pin of the vane pump rear housing with the notches of the vane pump cam ring, vane pump front side plate, and vane pump front housing.
      Fig 11: Aligning Straight Pin Of Vane Pump Rear Housing With Notches Of Vane Pump Cam Ring
      G04978702Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the vane pump rear housing with the 4 bolts.

      Torque: 22 N*m (224 kgf*cm, 16 ft.*lbf) 

  8. INSPECT TOTAL PRELOAD ( INSPECTION   ) 
    Fig 12: Locating Vane Pump Rear Housing Bolts
    G04978676Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. INSTALL FLOW CONTROL VALVE ASSEMBLY 
    1. Coat the flow control valve assembly with power steering fluid.
    2. Install the flow control valve compression spring and the flow control valve assembly to the vane pump front housing.
    3. Coat a new O-ring with power steering fluid and install it onto the pressure port union.
    4. Install the pressure port union to the vane pump front housing.

      Torque: 69 N*m (704 kgf*cm, 51 ft.*lbf) 

      Fig 13: Identifying Flow Control Valve Assembly
      G04978675Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. INSTALL POWER STEERING FLUID PRESSURE SWITCH 
    1. Coat the new O-ring attached to the new power steering fluid pressure switch with power steering fluid.
    2. Install the power steering fluid pressure switch to the vane pump assembly.

      Torque: 21 N*m (214 kgf*cm, 16 ft.*lbf) 

      NOTE: Do not use a power steering fluid pressure switch that has been subjected an impact; for example, due to it having been dropped.
  11. INSTALL POWER STEERING SUCTION PORT UNION 
    1. Coat a new O-ring with power steering fluid and install it to the power steering suction port union.
      Fig 14: Locating Power Steering Fluid Pressure Switch
      G04978674Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the power steering suction port union to the vane pump assembly with the bolt.

      Torque: 12 N*m (122 kgf*cm, 9 ft.*lbf) 

      Fig 15: Identifying Power Steering Suction Port Union Bolt
      G04978720Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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