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•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 should be removed from the tractor.
•The hydraulic system oil filter is remotely mounted in the vertical position between the tractor frame rails. See Figure 44.
•Clean the area around the oil filter to prevent debris from entering the system.
•Position a suitable container below the hydrau- lic system filter. See Figure 44.
NOTE (25 Hour
HYDRAULIC SYSTEM
OIL FILTER
TRANSMISSION
DRAIN PLUG
Figure 44
•Apply a light coating of clean transmission oil to the gasket of the new hydraulic system filter.
NOTE: If performing the 25 hour
•From beneath the tractor frame, remove the old hydraulic system filter by turning it counter- clockwise.
•When performing the 200 hour filter change, clean the oil filter adapter.
•Install the new filter. Turn the filter clockwise, by hand, until the gasket contacts the surface of the filter adapter; then tighten the filter an additional 1/2 to 3/4 turn.
•Clean the area around the transmission fill plug to prevent debris from entering the transmis- sion (Refer to Figure 42) 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.
•Reinsert the oil fill plug into the transmission 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.
CHANGING THE HYDRO TRANSMISSION AND HYDRAULIC SYSTEM OIL
Change the hydrostatic transmission/hydraulic system oil after every 200 hours of operation. The dry capacity of the transmission/hydraulic system is approximately 20 quarts.
Change the transmission/hydraulic system oil as follows:
•Operate the tractor for a short period to warm the oil to the normal operating temperature. Place the tractor on a level surface and engage the parking brake.
•Stop the tractor engine and lower the mower deck or any other hydraulically lifted implement to the ground. NOTE: To improve access to the drain plug and hydraulic system filter, the mower deck should be removed from the tractor.
•Clean the area around the transmission drain plug and the oil fill plug to prevent debris from entering the transmission. Refer to Figure 42 and Figure 44.
•Place a suitable container(s) beneath the front of the transmission housing.
•Remove the oil fill plug to help vent the trans- mission, then remove the drain plug and allow the transmission oil to drain into the con- tainer(s). Reinstall the drain plug after draining the oil. Refer to Figure 42 and Figure 44.
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