Service Manual

XL HYDROSTATIC TRANSAXLES
3 - 20 XL Lawn Tractor Service Manual
7. Install the left rear tire only and lower the unit until
the tire just touches the ground. Install the battery
and the battery tray and reconnect the battery
cables (Figure 135).
Figure 135
MVC-001A
NOTE: When installing a new transaxle in the
machine, or if any work was performed internally on the
transaxle, make sure the system is purged prior to
doing any neutral adjustment. Refer to “Purging
Procedures” on page 3 - 3.
8. Check the neutral adjustment. If adjustment is
needed, follow the “Neutral Adjustment - HXL
Hydro - 2001 and Later” on page 3 - 20.
9. Reinstall the right tire.
10. Install mower deck (refer to the "Mower" section
on page 6 - 1).
11. Operate the tractor and make sure all safety
features are working.
Neutral Adjustment - HXL Hydro -
2001 and Later
Before making a neutral adjustment, the transaxle
must be warmed up for at least 10 minutes. Steps to
perform neutral adjustment:
1. Jack-up and support the right rear end of the
tractor, allowing enough clearance to remove the
right rear tire. Make sure the left rear tire stays on
the ground (Figure 136).
Figure 136
2001-020
2. Locate the adjusting puck and loosen the Allen
head bolt. If difficult to loosen, heat the aluminum
case near the bolt with a propane torch (Figure
137).
3. Start the engine and run at full throttle.
4. Rotate the adjusting puck in both directions and
watch the axle direction. You want to adjust the
puck so it is set at the midpoint between forward
and reverse axle rotation. Make sure the axle is
not moving (Figure 137).
Figure 137
2001-023
(A) Adjusting Puck
A