Page 2817 of 3051
NLMT0055
SMT648D
Transaxle CaseNLMT0055S011. Remove reverse switch, PNP switch, drain plug, and filler plug
from transaxle case.
SMT644D
2. Remove snap rings from reverse idler shaft.
3. Remove side cover and rear cover from case.
4. Remove O-ring and mainshaft bearing adjusting shim.
SMT645D
5. Remove reverse idler gear shaft.
a. Attach bolt (M6) to thread of reverse idler gear shaft end.
b. Pull out the attached bolt, and remove reverse idler gear shaft
from case.
6. Remove reverse idler gear, thrust washer (front, rear), and
bearing from case.
SMT646D
7. Remove snap ring of mainshaft bearing from case.
SMT647D
8. Remove check plugs, springs, and check balls from case.
DISASSEMBLYRS5F70A
Transaxle Case
MT-28
Page 2818 of 3051
SMT649D
9. Remove mounting bolts.
10. Remove input shaft rear bearing adjusting shim from transaxle
case.
SMT650D
11. Remove oil gutter from case.
SMT651DB
12. Remove differential side bearing outer race and adjusting shim
from case.
SMT653DB
13. Remove differential oil seal from case.
SMT839DB
14. Remove welch plugs from case.
DISASSEMBLYRS5F70A
Transaxle Case (Cont’d)
MT-29
Page 2819 of 3051
SMT654D
Clutch HousingNLMT0055S021. Remove transaxle case from clutch housing.
2. Remove magnet from housing.
3. Remove check plugs, check springs, check pins, and check
balls from housing.
SMT656DC
4. Remove 3rd & 4th bracket retaining pin.
SMT655D
5. Remove 3rd & 4th shift fork stopper ring.
6. Remove 3rd & 4th fork rod.
7. Remove 3rd & 4th shift fork and bracket.
SMT658D
8. Remove interlock plunger and check ball.
9. Remove 5th & reverse bracket stopper ring.
SMT657DC
10. Remove retaining pin from 5th & reverse shift fork and reverse
switch bracket.
11. Remove 5th & reverse fork rod.
12. Remove interlock pin from 5th & reverse fork rod.
13. Remove reverse switch bracket and 5th & reverse bracket.
DISASSEMBLYRS5F70A
Clutch Housing
MT-30
Page 2820 of 3051
SMT659DC
14. Remove check ball from housing.
15. Remove retaining pin for 1st & 2nd shift fork and bracket.
16. Remove 1st & 2nd fork rod.
17. Remove 5th & reverse and 1st & 2nd shift forks, and 1st & 2nd
bracket.
SMT660D
18. Remove both input shaft and mainshaft assemblies from hous-
ing.
SMT661D
19. Remove final drive assembly from housing.
20. Remove oil pocket from housing.
SMT662D
21. Remove mainshaft bearing retainer from housing.
22. Cut off oil channel using a cutter as shown in the figure.
SMT663DB
23. Remove mainshaft front bearing from housing.
DISASSEMBLYRS5F70A
Clutch Housing (Cont’d)
MT-31
Page 2821 of 3051
SMT664D
24. Using a magnet or other suitable tool, remove retaining pin
from selector shaft.
SMT665DB
25. Remove selector shaft and plug, then remove selector.
SMT666DA
26. Remove reamer bolt, then remove select check leaf spring,
return spring, steel ball, reverse gate, selector arm, bearing,
and bushing.
CAUTION:
Be careful not to lose the steel ball.
SMT667DB
27. Remove retaining pin and plug from striking lever.
28. Remove striking rod, then striking lever from housing.
SMT668D
29. Using a flat-head screwdriver or other suitable tool, remove
dust seal, input shaft oil seal, and striking rod oil seal from
housing.
CAUTION:
When removing dust and oil seals, be careful not to damage
mounting surfaces of dust seal and oil seal.
DISASSEMBLYRS5F70A
Clutch Housing (Cont’d)
MT-32
Page 2822 of 3051
SMT669DB
30. Remove differential oil seal from housing.
SMT670DB
31. Remove differential side outer race from housing.
DISASSEMBLYRS5F70A
Clutch Housing (Cont’d)
MT-33
Page 2823 of 3051
SMT759D
Input Shaft and Gears
DISASSEMBLYNLMT00561. Before disassembly, measure the end plays of 3rd and 4th
input gears.
Gear end play:
Refer to SDS, MT-89.
+If end play is not within specification, disassemble and check
the parts.
SMT671D
2. Remove oil channel from input shaft rear bearing.
SMT672DB
3. Press out input shaft rear bearing.
SMT673D
4. Remove C-ring holder.
5. Remove 5th gear rear C-ring.
SMT674DB
6. Remove 5th input gear from input shaft.
7. Remove 5th gear front C-ring.
REPAIR FOR COMPONENT PARTSRS5F70A
Input Shaft and Gears
MT-34
Page 2824 of 3051
SMT675DB
8. Remove 4th input gear, baulk ring, 4th gear needle bearing,
and 4th gear C-ring from input shaft.
9. Press out both 3rd & 4th synchronizer hub assembly and 3rd
input gear from input shaft.
10. Remove 3rd gear needle bearing.
SMT676DB
11. Press out input shaft front bearing from input shaft.
SMT693D
INSPECTIONNLMT0057Input Shaft and GearsNLMT0057S01+Check shaft for cracks, wear or bending.
+Check gears for excessive wear, chips or cracks.
SMT637A
SynchronizersNLMT0057S02+Check spline area of coupling sleeves, hubs and gears for
wear or cracks.
+Check baulk rings for cracks or deformation.
+Check insert springs for wear or deformation.
SMT867D
+If any crack, damage, or excessive wear is found on cam face
of baulk ring or working face of insert, replace it.
REPAIR FOR COMPONENT PARTSRS5F70A
Input Shaft and Gears (Cont’d)
MT-35