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7 Transmission Repair
7D Hydro-Gear 0750 / 0800
Installation
1. Install the input shaft pulley, lock washer, and nut.
Torque to 80–100 in-lbs.
2. Install the transaxle case vent hose.
3. Install the left and right mounting straps on the front
of the transaxle case.
4. Place transaxle on a floor jack and position under the
tractor. Raise the transaxle up into the tractor while
guiding the mounting straps and vent hose into posi-
tion.
5. Install the axle mounting bolts to frame.
6. Install the hydro drive belt on the input pulley. Check
the belt routing through the pivot plate idlers.
7. Install the hydro belt guide/bolt through the left
mounting bracket and frame. Adjust the double nut
on the guide/bolt so the belt cannot be removed from
the pulley.
8. Install the following components using standard
torque values:
• Right transaxle mounting strap
• Brake rod and cotter key
• Hydro control rod
• Hydro fan
• Fuel tank
•Rear fender
• Operator's seat wiring harness
9. Lower tractor to ground and run to purge air from
pump. (See Sec. 2 Purging Air from Transaxle)
Recheck oil level after shutdown.
NOTE: Oil level should be checked from the vent hose
opening with the plastic fitting removed from the case.
Oil level should be 1" to 1-1/4" below the top of the vent
hole threads.
Figure D–48. Install Transaxle Mounting Bolts
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