Vane Pump (For 1Gr-Fe) Reassembly

Steering. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Power Assist Systems. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

  1. INSTALL VANE PUMP HOUSING OIL SEAL

  2. INSTALL SHAFT SUB-ASSEMBLY WITH PULLEY

  3. INSTALL FRONT VANE PUMP SIDE PLATE

  4. INSTALL VANE PUMP CAM RING

  5. INSTALL VANE PUMP ROTOR

  6. INSTALL REAR VANE PUMP HOUSING

  7. INSPECT PRELOAD

  8. INSTALL POWER STEERING OIL PRESSURE SWITCH

  9. INSTALL FLOW CONTROL VALVE

  10. INSTALL POWER STEERING SUCTION PORT UNION

Vane Pump (For 1Gr-Fe) -- Reassembly



1. INSTALL VANE PUMP HOUSING OIL SEAL
  1. Coat a new vane pump housing oil seal lip with power steering fluid.



    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Power Assist Systems.Power Steering System.Vane Pump (For 1Gr-Fe)  Reassembly
  1. Using SST and a press, install a new oil seal.

    SST
    09950-60010(09951-00280)
    09950-70010(09951-07100)
    Text in Illustration
    *1
    Oil Seal
    NOTICE:
    Make sure that the oil seal is installed facing in the correct direction.


2. INSTALL SHAFT SUB-ASSEMBLY WITH PULLEY


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Power Assist Systems.Power Steering System.Vane Pump (For 1Gr-Fe)  Reassembly
  1. Coat the busing inner surface of the front vane pump housing with power steering fluid.

    Text in Illustration
    *a
    power steering fluid
  1. Gradually insert the vane pump shaft.

    NOTICE:
    Do not damage the vane pump housing oil seal lip in the front vane pump housing.


3. INSTALL FRONT VANE PUMP SIDE PLATE


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Power Assist Systems.Power Steering System.Vane Pump (For 1Gr-Fe)  Reassembly
  1. Coat a new O-ring with power steering fluid and install it onto the front vane pump housing.



    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Power Assist Systems.Power Steering System.Vane Pump (For 1Gr-Fe)  Reassembly
  1. Coat a new O-ring with power steering fluid and install it onto the side plate.



    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Power Assist Systems.Power Steering System.Vane Pump (For 1Gr-Fe)  Reassembly
  1. Align the dent of the side plate with that of the front vane pump housing and install the side plate.

    NOTICE:
    Make sure that the side plate is installed facing in the correct direction.


4. INSTALL VANE PUMP CAM RING


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Power Assist Systems.Power Steering System.Vane Pump (For 1Gr-Fe)  Reassembly
  1. Align the dent of the cam ring with that of the side plate and install the cam ring with the inscribed mark facing outward.

    Text in Illustration
    *1
    Inscribed Mark


5. INSTALL VANE PUMP ROTOR


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Power Assist Systems.Power Steering System.Vane Pump (For 1Gr-Fe)  Reassembly
  1. Install the vane pump rotor with the inscribed mark facing outward.

    Text in Illustration
    *1
    Inscribed Mark
    *a
    Round End
  1. Coat the 10 vane plates with power steering fluid.

  1. Install the vane pump rotor with the round ends facing outward.



    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Power Assist Systems.Power Steering System.Vane Pump (For 1Gr-Fe)  Reassembly
  1. Using a snap ring expander, install a new snap ring onto the pulley shaft.



6. INSTALL REAR VANE PUMP HOUSING
  1. Coat a new O-ring with power steering fluid and install it onto the vane pump housing rear.

  1. Align the straight pin of the vane pump housing rear with the dent of the cam ring, side plate and front vane pump housing, and install the rear vane pump housing with the 4 bolts.

    Torque:
    22 N*m{224 kgf*cm, 16 ft.*lbf}


7. INSPECT PRELOAD


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Power Assist Systems.Power Steering System.Vane Pump (For 1Gr-Fe)  Reassembly
  1. Check that the pump rotates smoothly without making any abnormal noises.

  1. Provisionally install the service bolt.

    Recommended service bolt:
    Item
    Specified Condition
    Thread Diameter
    10 mm (0.3937 in.)
    Thread Pitch
    1.25 mm (0.0492 in.)
    Bolt Length
    50 mm (1.9685 in.)
  1. Using a torque wrench, check the pump rotating torque.

    Standard rotating torque:
    0.27 N*m (2.8 kgf*cm, 2.4 in.*lbf) or less


8. INSTALL POWER STEERING OIL PRESSURE SWITCH
  1. Coat a new O-ring with power steering fluid and install it onto the power steering oil pressure switch.

  1. Install the power steering oil pressure switch onto the vane pump assembly.

    Torque:
    21 N*m{214 kgf*cm, 15 ft.*lbf}


9. INSTALL FLOW CONTROL VALVE
  1. Coat the compression spring and flow control valve with power steering fluid.



    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Power Assist Systems.Power Steering System.Vane Pump (For 1Gr-Fe)  Reassembly
  1. Install the compression spring and flow control valve.

  1. Coat a new O-ring with power steering fluid and install it onto the pressure port union.

  1. Install the pressure port union.

    Torque:
    69 N*m{704 kgf*cm, 51 ft.*lbf}


10. INSTALL POWER STEERING SUCTION PORT UNION
  1. Coat a new O-ring with power steering fluid, and install it onto the suction port union.

  1. Install the suction port union with the bolt.

    Torque:
    12 N*m{122 kgf*cm, 9 ft.*lbf}