GSIC - Global Service Information Center

# OVERDRIVE BRAKE > INSPECTION

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1. INSPECT PISTON OPERATION OF OVERDRIVE BRAKE

1. Place the overdrive support assembly onto the direct clutch assembly.

1. Apply compressed air (392 kPa (4 kgf/cm2, 57 psi)) into the oil passage, and check that the overdrive brake piston moves smoothly.

2. INSPECT OVERDRIVE BRAKE RETURN SPRING

1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

   Standard free length:
     17.03 mm (0.671 in.)
   If the length is not as specified, replace the spring.

3. INSPECT OVERDRIVE BRAKE CLUTCH DISC

1. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or burnt, 2) the lining of a disc is peeled off or discolored, or 3) grooves or printed numbers have even a little bit of damage.

   NOTICE:
     Before assembling new discs, soak them in ATF for at least 15 minutes.

4. INSPECT PISTON OPERATION OF OVERDRIVE BRAKE

1. Place the overdrive support assembly onto the direct clutch assembly.

1. Apply compressed air (392 kPa (4 kgf/cm2, 57 psi)) into the oil passage as shown, and check that the overdrive brake piston moves smoothly.