Part 2

20. REMOVE OVERDRIVE PLANETARY GEAR UNIT WITH OVERDRIVE DIRECT CLUTCH AND ONE-WAY CLUTCH




a. Remove the overdrive planetary gear with the over drive direct clutch and one-way clutch from the transmission case.




b. Remove the race and assembled bearing and race.




c. Remove the bearing and race.




d. Remove the overdrive planetary ring gear from the transmission case.




21. CHECK PISTON STROKE OF OVERDRIVE BRAKE
a. Place SST and a dial indicator onto the overdrive brake piston as shown in the figure.
SST 09350 - 30020 (09350 - 06120)




b. Measure the stroke applying and releasing the compressed air (4 - 8 kg/sq.cm, 57 - 114 psi or 392 - 785 kPa) as shown in the figure.

Piston stroke:
7M-GE 1.40 - 1.70 mm (0.0551 - 0.0669 in.)
7M-GTE 1.75 - 2.05 mm (0.0689 - 0.0807 in.)

If the values are nonstandard, inspect the discs.

22. REMOVE FLANGES, PLATES AND DISCS OF OVERDRIVE BRAKE




a. Remove the snap ring.




b. Remove the flanges, plates and discs as a set.

7M-GE: Two flanges, three plates and four discs
7M-GTE: Two flanges, four plates and five discs

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 two races.




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.

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. Remove the parking lock rod from the manual valve lever.




c. Remove the spring, parking lock pawl and 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 0.74-2.24 mm (0.0291 - 0.0882 in.)
7M-GTE 0.94-2.51 mm (0.0370 - 0.0988 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 SST, remove the snap ring.
SST 09350 - 30020 (09350 - 07060)




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




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




37. CHECK FIRST AND REVERSE BRAKE PISTON MOVING
Make sure the first and reverse brake piston moves smoothly when applying and releasing the compressed air into the transmission case.

38. 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 by 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.

39. 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.




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