Power Steering Gear: Replacement

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

IF NECESSARY, REPLACE OIL SEAL AND BEARING
1. Using SST, press out the bearing and oil seal from the control valve housing.
  SST 09950-60010 (09951-00250), 09950-70010 (09951-07100)
  
  Fig 1: Pressing Out Bearing And Oil Seal From Control Valve Housing Using SST
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Coat a new oil seal lip with power steering fluid.
3. Using SST, press in the oil seal.
  SST 09950-60010 (09951-00180, 09951-00330, 09952-06010), 09950-70010 (09951-07150)
  
  Fig 2: Pressing In Oil Seal Using SST
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: Make sure that the oil seal is installed facing in the correct direction.
4. Coat a new bearing with molybdenum disulfide lithium base grease.
5. Using SST, press in the bearing.
  SST 09950-60100 (09951-00350), 09950-70010 (09951-07150)
  
  Fig 3: Pressing In Bearing Using SST
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
IF NECESSARY, REPLACE OIL SEAL
1. Using SST, remove the oil seal from the bushing.
  SST 09612-24014 (09613-22011)
  
  Fig 4: Removing Oil Seal From Bushing Using SST
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: Be careful not to damage the bushing.
  
  HINT:
  
  As shown in Fig 4, from the opposite side of SST confirm that its claws are firmly caught on the oil seal.
2. Coat a new oil seal lip with power steering fluid.
3. Using SST, press in the oil seal.
  SST 09950-60010 (09951-00210, 09951-00340, 09952-06010), 09950-70010 (09951-07100)
  
  Fig 5: Pressing In Oil Seal Using SST
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: Make sure that the oil seal is installed facing in the correct direction.
IF NECESSARY, REPLACE 2 UNION SEATS
1. Using a screw extractor, remove the union seat from the control valve housing.
  
  Fig 6: Removing Union Seat From Control Valve Housing Using Screw Extractor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Using a plastic hammer and an extension bar, lightly tap in a new union seat.
3. Employ the same manner described above to the other side.
  
  Fig 7: Tapping In New Union Seat Using Plastic Hammer & Extension Bar
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
IF NECESSARY, REPLACE TEFLON RING AND O-RING
1. Using a screwdriver, remove the teflon ring and O-ring from the steering rack.
  
  Fig 8: Removing Teflon Ring And O-Ring From Steering Rack
  Courtesy 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.
  
  Fig 9: Expanding New Teflon Ring With Fingers
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Coat the teflon ring with power steering fluid.
5. Install the teflon ring to the steering rack and settle it down with your fingers.
  
  Fig 10: Installing Teflon Ring To Steering Rack And Settle It Down With Fingers
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
IF NECESSARY, REPLACE 4 TEFLON RINGS
1. Using a screwdriver, remove the 4 teflon rings from the control valve assembly.
  
  Fig 11: Removing Teflon Rings From Control Valve Assembly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  Tape the screwdriver tip before use.
  
  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.
  SST 09631-20081
  
  Fig 12: Sliding Tapered End Of SST Over Teflon Rings
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: Be careful not to damage the teflon rings.