SERVICE SPECIFICATIONS

AT-54
A46DE AUTOMATIC TRANSMISSION - NO. 1 BRAKE (A46DE)
AT4705
AT4886
AT4706
Printed
Number
AT6243
AT4979
(c) Remove the piston return spring.
6. REMOVE NO. 1 BRAKE PISTON
(a) Hold the No. 1 brake piston with hand, apply
compressed air to the center support to remove
the No. 1 brake piston.
(b) Remove the two O-rings from the piston.
7. REMOVE OIL SEAL RINGS
Remove the three oil seal rings.
NO. 1 BRAKE INSPECTION
1. INSPECT DISC, PLATE AND FLANGE
Check to see if the sliding surface of the disc, plate
and flange are worn or burnt. If necessary, replace
them.
HINT:
If the lining of the disc is peeling off or discolored,
or even if parts of the printed numbers are
defaced, replace disc.
Before assembling new disc, soak it in ATF for at
least fifteen minutes.
2. CHECK CENTER SUPPORT BUSHING
Using a dial indicator, measure the inside diameter of
the center support bushing.
Maximum inside diameter:
36.46 mm (1.4354 in.)
If the inside diameter is greater than the maximum,
replace the center support.