Section 6 — Maintenance & adjuStMentS
Hydrostatic Transmission Oil
Checking the Hydrostatic Transmission Oil
The dipstick to check the hydrostatic transmission oil level is
located on the back of the mower on the upper section of the
frame. Refer to the Controls & Features section of this manual.
1. Remove the dipstick and check the level. See Figure 6-2.
Figure 6-2
2. If the level is above the “ADD” level and in the “OK” range, it
is not necessary to add any transmission oil. If the level is at
or below the “ADD” level add transmission oil into the oil fill
port until the level is in the “OK” range. For best results, fill
to the “FULL” mark on the dipstick as opposed to adding a
specific volume of oil. Do NOT overfill.
NOTE : The approved fluid is Cub Cadet Drive System Fluid
Plus. (1 quart — Part No. 737-3120/1 gallon — 737-3121).
3. Reinstall the transmission oil fill plug/dipstick securely into
the oil fill port.
4. Start the engine and allow it to run for a few minutes. Shut
the engine off, then check for leaks and re-check the oil
level in the transmission case.
Changing the Hydrostatic Transmission Oil
CAUTION: Never overfill the transmission case.
Damage or leakage may result if the oil level in the
transmission case is below the “ADD” mark or over
the “FULL” mark of the dipstick.
1. Place the tractor on a level surface and engage the brake pedal
lock. Stop the tractor engine and remove the ignition key.
2. Clean the area around the transmission drain plug to
prevent debris from entering the transmission case.
3. Remove the drain plug and allow the transmission oil to
drain into a clean container having a capacity of more than
six quarts. Reinstall the drain plug. See Figure 6-3.
Figure 6-3
4. Clean around the base of the transmission oil filter and
remove the filter by turning it counterclockwise. Refer to
Figure 6-3.
5. Apply a light coating of clean transmission oil to the gasket
of the new filter. Install the filter by turning it clockwise,
by hand. When the gasket contacts the filter base on the
transmission housing, tighten the filter an additional ⁄-turn.
6. Clean the area around the transmission oil fill plug/dipstick
to prevent debris from entering the transmission case.
7. Remove the oil fill plug/dipstick from the oil fill port and
SLOWLY pour oil into the oil fill port. Fill the transmission
case until the oil level reaches the “FULL” mark on the
dipstick Refer to Figure 6-2.
NOTE : The transmission has a capacity of approximately
5-⁄ quarts.
8. Reinstall the oil fill plug/dipstick securely into the oil fill
port.
9. Start the engine and allow it to run for a few minutes. Shut
the engine off, then check for leaks and re-check the oil
level in the transmission case.
CAUTION: The transmission oil fill plug/dipstick
must be installed securely into the fill port at all
times when the engine is operating.
Hydrostatic Neutral Adjustment
If the tractor creeps forward or rearward when neither the
forward nor reverse pedal is depressed, contact your local
Cub Cadet dealer to have the hydrostatic control rods properly
adjusted.
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