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Power Steering Gear: Replacement

NOTE: When using a vise, do not overtighten it.
  1. REPLACE LOWER BEARING OF CONTROL VALVE SHAFT 
    1. Using a brass bar and a hammer, tap out the lower bearing from the rack housing.
      2. Fig 1: Tapping Out Lower Bearing From Rack Housing Using Brass Bar & A Hammer
      G02854772Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Coat a new bearing with molybdenum disulfide lithium base grease.
    3. Install the bearing into the rack housing.
  2. REPLACE OIL SEAL OF RACK HOUSING FOR CONTROL VALVE SHAFT ASSEMBLY SIDE 
    1. Using SST, press out the oil seal.
      Fig 2: Pressing Out Oil Seal Using SST
      G02854773Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. SST 09950-60010 (09951-00260), 09950-70010 (09951-07360)
      NOTE: Be careful not to damage the rack housing.
    2. Coat a new oil seal lip with power steering fluid.
    3. Using SST, press in the oil seal.
      Fig 3: Pressing In Oil Seal Using SST
      G02854774Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. SST 09950-60010 (09951-00230, 09951-00400, 09952-06010), 09950-70010 (09951-07360)
      NOTE:
      • Make sure to install the oil seal facing in the correct direction.
      • Take care that the oil seal does not get reversed as you install it.
  3. REPLACE BUSHING AND LOWER OIL SEAL OF CONTROL VALVE ASSEMBLY 
    1. Using SST, remove the bushing from the rack housing.
      Fig 4: Removing Bushing From Rack Housing Using SST
      G02854775Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. SST 09612-24014 (09613-22011)
      NOTE: Be careful not to damage the rack housing.
      • Separate the SST as shown in the illustration to use it.
      • As shown in the illustration, from the opposite side of SST confirm that its claw is firmly caught on the bushing.
    2. Using a screwdriver and a hammer, tap out the oil seal from the rack housing.
      Fig 5: Tapping Out Oil Seal From Rack Housing Using Screwdriver & A Hammer
      G02854776Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: To prevent rack housing damage, wind vinyl tape on the screwdriver.
    3. Coat a new oil seal lip with power steering fluid.
    4. Using SST, press in the oil seal.
      Fig 6: Pressing In Oil Seal Using SST
      G02854777Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      1. SST 09950-60010 (09951-00230, 09951-00340, 09952-06010), 09950-70010 (09951-07150)
      Make sure to install the oil seal facing in the correct direction.
    5. Coat a new bushing with molybdenum disulfide lithium base grease.
    6. Using SST, press in the bushing.
      Fig 7: Press In Bushing Using SST
      G02854778Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. SST 09950-60010 (09951-00280, 09951-00350, 09952-06010), 09950-70010 (09951-07150)
  4. REPLACE TEFLON RING AND O-RING OF STEERING RACK 
    1. Using a screwdriver, remove the teflon ring and O-ring from the steering rack.
      Fig 8: Removing Teflon Ring & O-Ring From Steering Rack Using Screwdriver
      G02854779Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: Be careful not to damage the groove for the teflon ring.
    2. Coat a new O-ring with power steering fluid and install it to the steering rack.
    3. Expand a new teflon ring with your fingers.
      NOTE: Be careful not to overexpand the teflon ring.
    4. Coat the teflon ring with power steering fluid.
      Fig 9: Coating Teflon Ring With Power Steering Fluid
      G02854780Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Install the teflon ring to the steering rack and settle it down with your fingers.
      Fig 10: Installing Teflon Ring To Steering Rack
      G02854781Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Carefully slide the tapered end of SST over the ring to seat it.
        Fig 11: Sliding Tapered End Using SST
        G02854782Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. SST 09630-24014 (09631-24031)
      NOTE: Be careful not to damage the ring.
  5. REPLACE TEFLON RINGS OF CONTROL VALVE ASSEMBLY 
    1. Using a screwdriver, remove the 4 teflon rings from the control valve assembly.
      Fig 12: Removing Teflon Rings From Control Valve Assembly Using Screwdriver
      G02854783Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: Be careful not to damage the grooves for the teflon rings.
    2. Expand 4 new teflon rings with your fingers.
      NOTE: Be careful not to overexpand the teflon ring.
    3. Coat the teflon rings with power steering fluid.
    4. Install the teflon rings to the control valve assembly and settle them down with your fingers.
    5. Carefully slide the tapered end of SST over the teflon rings until they fit to the control valve assembly.
      Fig 13: Sliding Tapered End Over Teflon Rings
      G02854784Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. SST 09631-20081
      NOTE: Be careful not to damage the teflon rings.
  6. REPLACE UNION SEATS 
    1. Using a screw extractor, remove the 2 union seats.
      Fig 14: Removing Union Seats Using Screw Extractor
      G02854785Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using an extension bar and a hammer, tap in 2 new union seats.
      Fig 15: Tapping Union Seats Using Expansion Bar & A Hammer
      G02854786Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: Before installing the union seat, remove dust sticking to the rack housing.
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