MTD 700 Series Professional Shop Manual page 71

FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
Differential and axle assembly
12d. Problems in any of these areas mean the differential assembly should be replaced.
12e. If this is a warranty-related autopsy, identify the root cause of the problem. If it is not something that was
done wrong at the factory, the problem is not warrantable.
NOTE: MTD does not have a part number for water, and it is not installed at the factory.
www.mymowerparts.com
Shims
Figure 5.66
Figure 5.67
Auto-Drive CVT Drive System
9. Lift the axle and differential housing out of the tran-
saxle. See Figure 5.66.
10. Note the positions of the shim washers.
11. Slip the seals, bearings, and washers off of the differ-
ential and axle assembly. See Figure 5.67.
NOTE: When correctly installed, the seals fit on the axle
shaft with the lips facing out. Their primary purpose
is to exclude dirt and moisture. Grease does not
tend to migrate past the axle seals.
NOTE: If the transaxle is to be re-built, replace the bear-
ings and seals with new ones.
12. Inspect the differential and axle assembly.
12a. Look for damaged ring gear teeth.
12b. With the ring gear held still, turning one axle
should cause the other axle to rotate smoothly
in the opposite direction.
12c. Look for rust or excessive wear on the bearing
contact surfaces.
65