Part 2

23. CHECK PISTON ROD STROKE OF SECOND COAST BRAKE





a. Place a mark on the second coast brake piston rod as shown in the figure.





b. Using SST, measure the stroke applying the compressed air (4 - 8 kg/sq.cm, 57 - 114 psi or 392 - 785 kPa) as shown in the figure.
SST 09240-00020

Piston rod stroke: 1.5 - 3.0 mm (0.059 - 0.118 in.)

If the values are nonstandard, inspect the brake band.

24. REMOVE SECOND COAST BRAKE COVER. PISTON ASSEMBLY AND SPRING





a. Using SST, remove the snap ring.
SST 09350-30020 (09350-07060)





b. Applying compressed air to the oil hole, remove the second coast brake cover, piston assembly and spring.
c. Remove the two O-rings from the cover.

25. REMOVE OVERDRIVE SUPPORT ASSEMBLY





a. Remove the bearing and race.





b. Remove the two bolts holding the overdrive support assembly to the case.





c. Using SST, remove the snap ring.
SST 09350-30020 (09350-07060)




d. Using SST, remove the overdrive support assembly.
SST 09350-30020 (09350-07020)





e. Remove the race.

26. REMOVE DIRECT CLUTCH WITH FORWARD CLUTCH





a. Remove the direct clutch with forward clutch from the case.





b. Remove the two bearings and race.

27. REMOVE SECOND COAST BRAKE BAND





a. Remove the E-ring from the pin.
b. Remove the pin from the brake band.





c. Remove the second coast brake band from the case. For the method of inspection, refer to Second Coast Brake.

28. REMOVE FRONT PLANETARY GEAR UNIT





a. Remove the race.





b. Remove the front planetary ring gear from the case.





c. Remove the bearing and race.





d. Remove the race.





e. With wooden blocks under the output shaft, stand the transmission on the output shaft.





f. Using SST, remove the snap ring.
SST 09350-30020 (09350-07070)





g. Remove the front planetary gear from the case.





h. Remove the bearing and race from the front planetary gear.





29. REMOVE PLANETARY SUN GEAR WITH NO.1 ONE-WAY CLUTCH





30. CHECK PACK CLEARANCE OF SECOND BRAKE
Using a thickness gauge, measure the clearance between the snap ring and flange as shown in the figure.

Clearance: 0.62-1.98 mm (0.0244 - 0.0780 in.)

If the values are nonstandard, inspect the discs.

31. REMOVE FLANGE, PLATES AND DISCS OF SECOND BRAKE





a. Remove the snap ring.





b. Remove the flange, five plates and five discs as a set.

32. REMOVE PARKING LOCK ROD AND PAWL





a. Remove the parking lock paw bracket.





b. Disconnect the parking lock rod from the manual valve lever.





c. Remove the spring, parking lock pawl and shaft.
d. Remove the E-ring from the shaft.





33. CHECK PACK CLEARANCE OF FIRST AND REVERSE BRAKE
Using a thickness gauge, measure the clearance between the plate and second brake drum as shown in the figure.

Clearance:
7M-GE 0.60 -1.12 mm (0.0236 - 0.0441 in.)
7M-GTE 0.70 -1.22 mm (0.0276 - 0.0480 in.)

If the values are nonstandard, inspect the discs.





34. REMOVE SECOND BRAKE PISTON SLEEVE

35. REMOVE REAR PLANETARY GEAR UNIT WITH SECOND BRAKE DRUM, FIRST AND REVERSE BRAKE PACK AND OUTPUT SHAFT





a. Using two screwdrivers, remove the snap ring.





b. Remove the rear
planetary gear, second brake drum, first and reverse brake pack and output shaft as an assembly.





c. Remove the assembled thrust bearing and race from the case.





d. Remove the second brake drum assembly.





e. Remove the flange, plates and discs of the first and reverse brake.

7M-GE: One flange, six plates and six discs
7M-GTE: One flange, seven plates and seven discs

For the method of inspection, refer to First And Reverse Brake.





36. REMOVE LEAF SPRING





37. REMOVE BRAKE DRUM GASKET
Using a screwdriver, remove the gasket.





38. CHECK FIRST AND REVERSE BRAKE PISTONS MOVING
Make sure the first and reverse brake pistons move smoothly when applying and releasing the compressed air into the transmission case.

39. REMOVE COMPONENTS OF FIRST AND REVERSE BRAKE PISTON





a. Set SST on the spring retainer, and compress the return spring.
SST 09350-30020 (09350-07050)
b. Remove the snap ring with snap ring pliers.
c. Remove the piston return spring.





d. Hold No.2 first and reverse brake piston with hand, apply compressed air to transmission case to remove No.2 first and reverse brake piston.
e. Remove No.2 first and reverse brake piston. If the piston does not pop out with compressed air, lift the piston out with needle-nose pliers.
f. Remove the O-ring from No.2 piston.





g. Insert SST behind the reaction sleeve and gradually lift it out of the transmission case.
SST 09350-30020 (09350-07080)
h. Remove the O-ring from the reaction sleeve.





i. Insert SST behind No.1 brake piston and gradually lift it out of the transmission case.
SST 09350-30020 (09350-07090)
j. Remove the two O-rings from No.1 piston.

40. REMOVE MANUAL VALVE LEVER, SHAFT AND OIL SEALS





a. Using a chisel, cut off the spacer and remove it from the shaft.





b. Using a pin punch, drive out the pin.
c. Pull the manual valve lever shaft out through the case and remove the lever.





d. Using a screwdriver, remove the two oil seals.