Tuff Torq K92 - PTO Drive Train (Mid and Rear PTO) Removal and Installation

Tuff Torq K92 Hydrostatic Transaxle
Installing:
1. If replaced, install new needle bearing (F) from inside
case with bearing identification marks toward the inside of
the case. Push bearing tight against shoulder in bore.
(Fig. 20)
2. Install new seal (E) with the open, spring side
towards the inside of the case. (Fig. 20)
3. Push seal against shoulder in bore.
4. Install mid-mount PTO gear (K) so side with the
longer center hub is towards bearing. (Fig. 20)
5. Clean mating surfaces of rear cover and case. Be
sure threaded holes are clean and two O-rings are
in position in rear cover.
6. Apply petroleum jelly to seal on shaft of PTO clutch
as-sembly.
7. Apply a bead of silicon sealant to cover mating surface.
IMPORTANT: Avoid damage! Be sure rear cover is
aligned with transaxle case and installed within 4 mm
(1/8 in.) of case before tightening cap screws. Major
damage can occur to cover and/or case if cover is not
installed properly before tightening cap screws.
8. Install transaxle drain plug. Refill transaxle with ap-
proximately 9.0L (9.5 qt) using ATF Type F as
required) to crosshatched area of dipstick.
Rear Cover Cap Screw Torque Specifications:
• Used Transaxle Case . . . . . . . . . . . . . . . 25 N•m (18 lb-ft)
• New Transaxle Case. . . . . . . . . . . . . . . . 30 N•m (22 lb-ft)
• Internal Cap Screws. . . . . . . . . . . . . . . . 27 N•m (20 lb-ft)
PTO Drive Train (Mid and Rear PTO)
Remov-al and Installation
NOTE: Approximate capacity of hydrostatic power train
is 7.5L (7.9 qt) for 2WD and 7.8L (8.2 qt) for 4WD and
9.0L (9.5 qt) for 4WD w/rear PTO.
Removing:
CAUTION: Avoid Injury! Allow transaxle to cool before
drain-ing fluid. Hot fluid can cause serious burns.
1. Remove plug to drain oil from transaxle (AA). (Fig. 21)
Fig. 21, PTO Drive Train (Mid and Rear PTO) Removal
NOTE: Remove necessary rear PTO components
before rear transaxle cover removal. (See “Rear PTO
Removal and Instal-lation” on page 14.)
2. Remove rear PTO (AD). (See “Rear PTO
Removal and Installation” on page 14.)
3. Remove (9) cap screws (AC) to remove rear cover (AB).
(Fig. 21)
4. Remove PTO clutch assembly (A). (Fig. 22)
IMPORTANT: Avoid damage! When removing snap ring
(B), be sure not to lose needle bearing (C) or washers (D).
5. Remove PTO idler gear assembly (U). (Fig. 22)
6. Remove snap ring (L), spline collar (K), and remove mid-
mount and rear-mount PTO gear assembly (I). (Fig. 22)
7. Left axle must be removed to remove PTO output
shaft assembly (R), (Fig. 20). Inspect ball bearings
and needle bearings for smooth rotation.
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