Purging Air From Transaxle; Steering Gear Adjustment - Simplicity LTH series Service Manual

4 Adjustments
Purging Transaxle / Steering Adjustment

PURGING AIR FROM TRANSAXLE

Air may become trapped in the inlet hydraulic filter or
closed loop passages of the hydro transaxle during
assembly or shipment of the tractor. It is very important
for proper operation to release any trapped air that may
cause damage to the internal transaxle parts.
1. Park the tractor on a flat, level surface.
2. Place the hydro release lever (A, Figure 14) in the
"PUSH" position by pulling rearward on the lever. The
lever is located under the rear left-hand corner of the
frame.
3. Start the tractor engine and run at a low idle.
4. Move the ground speed control lever from the neutral
position to the full forward position for five seconds.
Move lever to the full reverse position for five sec-
onds. Repeat this procedure three times in forward
and reverse direction.
5. Return the control lever to the neutral gate.
6. Place the hydro release lever (A) in the "DRIVE" posi-
tion by pushing lever fully forward.
7. Drive the tractor at least five feet in the forward and
reverse directions with full throttle and full ground
speed. Repeat this procedure three times in the for-
ward and reverse directions.
8. Check oil level (if applicable)
Repeat the above steps if tractor has noisy or erratic
operation, lack of performance after transmission warm-
up, or oil leakage from the transaxle vent tube.

STEERING GEAR ADJUSTMENT

If there is excessive back-lash in the steering system, the
steering gear can be adjusted to the steering shaft gear
for better engagement. Refer to Figure 15. Loosen two
capscrews (A) and adjust bracket so that gear teeth are
more closely meshed. Retighten nuts after adjustment.
Release Lever
Figure 14. Release Lever
Figure 15. Steering Gear Adjustment
A. Capscrews
4 - 12
A