Power Steering Gear: Replacement

If necessary, replace oil seal and bearing :
1. Using SST, press out the oil seal and bearing from the control valve housing.
  
  Fig 1: Pressing Oil Seal Out
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. SST 09950-60010 (09951-00260), 09950-70010 (09951-07150)
2. Coat a new oil seal lip with power steering fluid.
3. Using SST, press in the oil seal.
  1. SST 09950-60010 (09951-00180, 09951-00330, 09952-06010), 09950-70010 (09951-07150)
4. Coat a new bearing with molybdenum disulfide lithium base grease.
5. Using SST, press in the bearing.
  1. SST 09950-60010 (09951-00330), 09950-70010 (09951-07150)
    
    Fig 3: Pressing Oil Bearing In
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Inspect bushing :
1. Check the inside of the bushing of the cylinder end stopper for cracks.
  
  Fig 4: Inspecting Bushing
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If faulty, replace the bushing.
2. Apply molybdenum disulfide lithium base grease to the inside of the bushing.
If necessary, replace bushing :
1. Using a screwdriver, remove the bushing from the cylinder end stopper.
  
  Fig 5: Removing Bushing
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: Be careful not to damage the cylinder end stopper.
2. Coat the inside of a new bushing with molybdenum disulfide lithium base grease.
3. Install the bushing.
If necessary, replace union seats :
1. Using a screw extractor, remove the 2 union seats from the control valve housing.
  
  Fig 6: Removing Union Seats
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Using a plastic hammer and sliding handle, lightly tap in 2 new seats.
If necessary, replace oil seal :
1. Using SST, press out the oil seal from the bearing guide nut.
  1. SST 09950-60010 (09951-00320), 09950-70010 (09951-07100)
    
    Fig 8: Pressing Oil Seal Out
    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.
  1. SST 09950-60010 (09951-00280, 09951-00360, 09952-06010), 09950-70010 (09951-07100)
    
    Fig 9: Pressing Oil Seal In
    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.
  CAUTION: Be careful not to damage the groove for the ring.
  
  Fig 10: Removing "O" Ring From Teflon Ring
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Coat a new "O" ring with power steering fluid and install it.
3. Expand a new teflon ring with your fingers.
4. Coat the ring with power steering fluid.
5. Install the ring to the rack, and settle it down with your fingers.
  
  Fig 12: Settling Teflon Ring
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If necessary, replace teflon rings :
1. Using a screwdriver, remove the 4 teflon rings from the control valve assembly.
  
  Fig 13: Removing Teflon Rings
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: Be careful not to damage the grooves for the teflon ring.
2. Expand 4 new teflon rings with your fingers.
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 then fits to the control valve assembly.
  1. SST 09631-20081
    
    Fig 14: Identifying & Installing SST 09631-20081 Over Teflon Rings
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002