MTD 700 Series Professional Shop Manual page 77

FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
28. Check the input shaft back-lash:
28a. Engage forward gear, hold the brake spline and rotate the input shaft. The top edge of the input shaft
should rotate between 0.006"-0.014" (0.15-0.36mm).
28b. Engage reverse gear, hold the brake spline and rotate the input shaft. The top edge of the input shaft
should rotate between 0.006"-0.014" (0.15-0.36mm).
29. Remove the top of the housing, and adjust the bevel shaft gear shims as necessary, then re-check.
NOTE: The back-lash in the input shaft is a function of the amount of play between the pinion gear and the
bevel gear it is driving. Shimming a bevel gear to run nearer the pinion shaft will reduce the back-lash.
Removing shims to allow more space between the pinon and bevel gears will increase the amount of
back-lash.
30. Install, or add Durina
www.mymowerparts.com
Figure 5.80
Figure 5.81
TM grease to a total of 20 fl.oz. (0.59 liters) in the housing.
Auto-Drive CVT Drive System
20f. Carefully place the assembly into the housing
for a dry fit. See Figure 5.80.
21. Press the differential and the reverse gears as close
together as they will go while remaining properly
seated in the housing.
22. Confirm that there is at least 0.030" (0.762mm)
between the rivet heads on the differential and the
back side of the reverse gear. See Figure 5.81.
23. Collective axle end play (the amount one axle shaft
moves when the opposite axle is pushed) should be
between 0.010"-0.080" (0.25-2.0mm).
24. Adjust the shims as necessary to achieve these two
conditions.
25. Install the shift fork.
26. Install the top of the transaxle housing, and tighten
the perimeter screws finger-tight.
27. Spin-test the transaxle in forward, neutral, and
reverse.
71