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36
CHANGING HYDROSTATIC TRANSMISSION
AND HYDRAULIC SYSTEM OIL FILTERS
NOTE: Except for the initial break-in period oil filter
change, the hydrostatic transmission and hydraulic
system oil filters should be changed along with the
hydrostatic transmission/hydraulic system oil after
every 200 hours of operation.
Initial Break-In Period Filter Change
During the initial hours of tractor operation, contam-
inants caused by the normal break-in of internal
transmission and hydraulic system components will
collect in the oil filters. Because of this, the filters
should be changed after the first 25 hours of opera-
tion.
Hydro Pump Filter — Part No. 723-3014
Hydraulic System Filter — Part No. 723-0405
NOTE: A large volume of oil may drain from the
transmission while performing the 25 hour change
of the oil filters. If collected in a clean container
and kept free of debris, this oil may be reused in
the transmission/ hydraulic system.
Perform the INITIAL change of the transmission
and hydraulic system oil filters as follows:
• Remove any belly mounted attachments.
• Clean the areas around the hydrostatic trans-
mission and hydraulic system oil filters. Refer to
Figure 43.
• Position a CLEAN, suitable container below the
hydrostatic transmission filter. See Figure 43.
• Apply a light coating of clean transmission oil to
the gasket of the new hydrostatic 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 on the
transmission housing; then tighten the filter an
additional 1/2 to 3/4 turn.
• Position the collection container below the
hydraulic system filter. See Figure 43.
• Apply a light coating of clean transmission oil to
the gasket of the new hydraulic system filter.
• Remove the old hydraulic system filter by turn-
ing it counterclockwise, and immediately re-
place with the new filter. Turn the filter clock-
wise, 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/dipstick to prevent debris from entering the
transmission (Refer to Figure 42) and remove
the plug.
• Following the instructions previously provided
in CHANGING TRANSMISSION/HYDRAULIC
SYSTEM OIL, refill the transmission with the
clean salvaged oil or with new hydraulic oil.
• Reinsert the oil fill plug/dipstick into the trans-
mission housing and turn clockwise until tight.
• Start the engine and allow it to run for a few
minutes. Shut the engine off, then check for
leaks and recheck the oil level in the transmis-
sion housing.
NOTE: If a front end loader and backhoe are in-
stalled on the tractor after the first 25 hours of
operation, it is recommended that the filters again
be changed after the first 25 hours of operation with
these attachments installed.
Regularly Scheduled Oil Filter Changes
Change the hydrostatic transmission and hydraulic
system oil filters along with the hydrostatic trans-
mission/hydraulic system oil after every 200 hours
of operation. Refer to the previous sub-section
CHANGING TRANSMISSION/ HYDRAULIC SYS-
TEM OIL and follow the instructions for changing
the oil and filters.