User Guide

7. Remove the fill plug from the transmission and fill
with new, clean 20W50 engine oil. It will require
approximately 2 - 2.46 quarts of oil to fill the
transmission. Re-install the fill plug. Fig. 4-4
WARNING: Do not overfill. If you overfill the
unit while it is “cold”, it may overflow as it
reaches normal operating temperatures. The oil
level should be to the bottom of the fill plug.
Fig. 4-4
8. Start the unit and drive it forward and rearward 5
times approximately 10 - 20 feet each time.
If it feels smooth then the unit is ready to operate.
If either side moves slower than the other or sluggish
then the system will need to be purged. Follow steps
9 through 12 until the air is purged from the system.
9. Raise and block the tractor up so the drive wheels are
off the floor.
10. With the park brake lever in the bypass valve position
and the engine running at 1/2 throttle, rotate the H-bar
slowly forward and rearward 5 to 6 times to allow air
to be purged from the system. As this occurs, the oil
level will drop.
11. With the park brake lever in the drive position and the
engine running, rotate the H-bar slowly forward and
rearward 5 - 6 times. Stop engine and place H-bar in
the neutral position. Lower the tractor and check the
oil level. Add oil as required.
12. Start the unit and drive it forward and rearward 5
times approximately 10 - 20 feet each time.
If it feels smooth then the unit is ready to operate.
If either side moves slower than the other or sluggish
then the system will need to be purged again. Follow
steps 9 through 12
NOTE: The C-IZT integrated pump/motor transmissions
are equipped with bypass valves. For more information
refer to Operation section, Moving tractor with stalled
engine.
WARNING: When washing the mower, direct
spray away (especially if using a power washer)
from the Hydro-Gear C-IZT transmission’s seals
to prevent water intrusion and to ensure
component performance.
Fuel system
WARNING: Observe usual fuel handling
precautions; do not smoke while refueling, do
not fill tank with engine running or while engine
is hot; allow engine to cool before storing
machine inside a building, keep fuel away from
open flame or spark and store machine away
from open flame or spark if there is fuel in the
tank. Read and observe safety precautions at
front of this manual.
The 5.0 U.S. gallon (18.9 liter) fuel tank is located
behind the engine. Fig. 4-5
Use regular unleaded gasoline with an octane rating of 87
or higher.
The fuel filter is installed in the fuel line between fuel
tank and engine fuel pump. Replace filter annually or after
every 500 hours of operation, whichever occurs first. Fig. 4-
6
When replacing the fuel filter, check the fuel line hoses
and fuel shut-off valve grommet for any cracks or leaks.
Replace as needed.
A fuel shut-off valve is located on the underneath side of
the fuel tank. Close this valve to prevent fuel flow to the
engine.
104893 10/05
4-4
Figure 4-6
Fuel
filter
Figure 4-5
Fuel
tank
Figure 4-4
Fill plug