Service Manual

400XT Series Tractor Service Manual 3 - 1
HYDRO-GEAR TRANSAXLE
Hydro-Gear Hydrostatic Transaxle
Internal Service
Internal service information is contained in the Hydro-
Gear Transaxle Service Manual, Form #492-0682.
Under warranty, internal service work should not be
performed unless authorized by your Distributor
Service Manager or the Toro Company.
Fluid Change
The Hydro-Gear transaxle is factory filled, sealed, and
does not require oil changes. However in the event of
oil contamination or degradation, oil replacement may
correct certain performance problems.
Transaxle Removal
1. Disconnect the negative battery cable from the
battery.
2. Raise the rear of the tractor and remove the right
and left rear tires. Support the rear frame, just in
front of the transaxle. Remove the center access
plate, fender, seat, and gas tank. Refer to the
“Chassis” section on page 2 - 15 and page 2 - 16.
Remove the center plate between the seat and
the hood stand (Figure 117).
Figure 117
MVC-061F
3. Disconnect the free wheeling valve I rod and the
vent hose clamp (Figure 118).
Figure 118
MVC-060F
4. Remove the cotter pin located on the crown nut for
adjusting the brakes. Remove the crown nut,
brake bracket, brake arm spring and brake rod
(Figure 119).
Figure 119
MVC-063F