SERVICE SPECIFICATIONS

Center Support
Non reusable part
A46DF AUTOMATIC TRANSMISSION - NO. 2 BRAKE (A46DF)
No. 2 Brake Piston
AT4887
AT4775
O-Ring
NO. 2 BRAKE
COMPONENTS
Piston Return Spring
Snap Ring
Disc
Plate
NO. 2 BRAKE DISASSEMBLY
Snap Ring
Flange
AT-57
AT4897
1. REMOVE PLANETARY SUN GEAR AND NO. 1 ONE-
WAY CLUTCH
2. CHECK PISTON STROKE OF NO. 2 BRAKE
Using a dial indicator, measure the No. 2 brake piston
stroke applying and releasing the compressed air
392-785 kPa (4 - 8 kgf/cm2 , 57 - 114 psi), as shown.
Piston stroke:
1.01 - 2.25 mm (0.0398 - 0.0886 in.)
If the values are nonstandard, inspect the discs.
3. REMOVE FLANGE
(a) Using a screwdriver, remove the snap ring.