34
Changing Hydro Transmission Oil Filter
The hydro transmission oil filter should be changed
after the first 25 of tractor operation, and after every
100 hours operation.
• Stop the tractor engine and lower the mower
deck or any other hydraulically lifted implement
to the ground.
• Slide the seat fully forward; then tilt seat forward.
• Through the access hole in the rear fender,
clean the area around the hydro transmission
oil filter to prevent debris from entering the
hydraulic system. Refer to Figure 39.
• Stuff shop rags underneath the hydro transmis-
sion filter to absorb any lost oil when the filter is
removed. Refer to Figure 39.
Figure 39
• Apply a light coating of clean transmission oil to
the gasket of the new hydro transmission filter.
• Remove the old hydrostatic filter by turning it
counterclockwise, and immediately replace with
the new filter. Turn the filter clockwise by hand
until the gasket contacts the filter base; then
tighten the filter an additional 1/2 to 3/4 turn.
• Clean any residual oil from the top of the
transmission.
Changing Hydraulic System Filter
The hydro transmission oil filter should be changed
after the first 25 of tractor operation, and after every
200 hours operation.
• Stop the tractor engine and lower the mower
deck or any other hydraulically lifted implement
to the ground. NOTE: To improve access to the
hydraulic system filter, the mower deck may be
removed from the tractor.
• Clean the area around the hydraulic system oil
filter to prevent debris from entering the trans-
mission housing.
• Position a suitable container below the hydrau-
lic system filter. Refer to Figure 40
NOTE (25 Hour Break-In Filter Change Only): A
large volume of oil may drain from the transmission
when changing the hydraulic system oil filter. If
collected in a clean container and kept free of
debris, this oil may be reused in the transmission/
hydraulic system.
Figure 40
• Apply a light coating of clean transmission oil to
the gasket of the new hydraulic system filter.
NOTE: If performing the 25 hour break-in filter
change, install the new filter as quickly as possible
to minimize the amount of oil that drains from the
transmission.
• Remove the old hydraulic system filter by turn-
ing it counterclockwise.
• When performing the 200 hour filter change,
clean the oil filter base.
• Install the new filter. Turn the filter clockwise,
by hand, until the gasket contacts the filter base
on the transmission housing; then tighten the
filter an additional 1/2 to 3/4 turn.
• Clean the area around the transmission oil fill
plug to prevent debris from entering the
transmission (Refer to Figure 38) and remove
the plug.
• Following the instructions previously provided
in CHECKING TRANSMISSION/HYDRAULIC
SYSTEM OIL LEVEL, refill the transmission
with the clean salvaged oil or with new hydrau-
lic oil.
Seat Removed
for Clarity
HYDRO
TRANSMISSION
FILTER
ACCESS HOLE
IN FENDER
TRANSMISSION
DRAIN PLUG
HYDRAULIC SYSTEM
OIL FILTER
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