AUTOMATIC TRANSMISSION(4AT) > AT Main Case

INSPECTION

1. HIGH CLUTCH AND REVERSE CLUTCH

Check the following items.

• Drive plate facing for wear or damage

• Driven plate for discoloration (burned color)

• Snap ring wear and spring retainer deformation

• Wear and damage of the lip seal and D-ring

• Piston and piston check ball operation

• Adjust the total end play.

2. PLANETARY GEAR AND LOW CLUTCH

Check the following items.

• Drive plate facing for wear or damage

• Driven plate for discoloration (burned color)

• Snap ring wear and spring retainer deformation

• Wear and damage of the lip seal and D-ring

• Measure the total end play and adjust it to be within specifications.

3. 2-4 BRAKE

Check the following items.

• Drive plate facing for wear or damage

• Driven plate for discoloration (burned color)

• Snap ring wear, leaf spring setting and breakage, and spring retainer deformation

• Wear and damage of the lip seal and D-ring

• Measure the total end play and adjust it to be within specifications.

4. ONE-WAY CLUTCH

• Check that the snap ring is not damaged and the seal ring is not deformed.

• Measure the total end play and adjust it to be within specifications.

5. LOW & REVERSE BRAKE

Check the following:

• Drive plate facing for wear or damage

• Driven plate for discoloration (burned color)

• Snap ring wear, leaf spring setting and breakage, and spring retainer deformation

• Lip seal wear and damage