OVERDRIVE BRAKE (for 1KD-FTV) DISASSEMBLY

INSPECT PISTON OPERATION OF OVERDRIVE BRAKE
1. Place the overdrive support sub-assembly onto the direct clutch assembly.
2. Apply compressed air (392 kPa, 4.0 kgf/cm², 57 psi) into the oil passage, and check that the overdrive brake piston moves smoothly.
REMOVE OVERDRIVE BRAKE RETURN SPRING SUB-ASSEMBLY
1. Place SST on the spring retainer, and compress the overdrive brake return spring sub-assembly with a press.
  
  SST
  
  09350-30020 ( 09350-07030 )
2. Remove the snap ring with a screwdriver.
3. Remove the overdrive brake return spring sub-assembly.
INSPECT OVERDRIVE BRAKE RETURN SPRING SUB-ASSEMBLY
1. Measure the free length of the spring together with the spring seat.
  
  Standard free length
  
  17.03 mm (0.6705 in.)
  
  If the free length is shorter than the standard free length, replace the overdrive brake return spring sub-assembly.
REMOVE OVERDRIVE BRAKE PISTON
1. Place the overdrive support sub-assembly onto the direct clutch assembly.
2. Hold the overdrive brake piston so that it does not slant, and apply compressed air (392 kPa, 4 kgf/cm², 57 psi) into the passage to remove the overdrive brake piston.
3. Remove the overdrive brake piston.
4. Remove the 2 O-rings.
REMOVE OVERDRIVE CLUTCH DRUM OIL SEAL RING
1. Remove the 2 overdrive clutch drum oil seal rings.
2. Remove the clutch drum thrust washer from overdrive support sub-aseembly.
INSPECT OVERDRIVE BRAKE CLUTCH DISC
1. Check if the sliding surface of the disc, the plate and the flange are worn or burnt. If necessary, replace them.
  Tech Tips
  
  If the lining of the disc is peeled off or discolored, or even if only a part of the printed numbers is corroded, replace all discs.
  
  Before assembling new discs, soak them in ATF for at least 15 minutes.