User Guide

from open flame or spark if there is fuel in the
tank. Read and observe safety precautions at
front of this manual.
The fuel tanks are located in the tractor’s fenders. (Fig.
4-7) Total capacity for the fuel tanks is 12 U.S. gallon (45.4
liter)
Use regular unleaded gasoline with an octane rating of 87
or higher.
The fuel filter (Fig. 4-8) is installed in the fuel line
between fuel tanks and engine fuel pump. Replace filter
annually or after every 500 hours of operation, whichever
occurs first.
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 each fuel tank (Fig. 4-
9). Close these valves to prevent fuel flow to the engine
when servicing the fuel system or when transporting the unit
on a trailer or truck.
Engine oil and filter
Check engine oil daily and after every 4 hours of
operation. Crankcase dipstick and oil filler tube are located
at the right front of the engine (Fig. 4-1). Tractor must be
setting level when checking oil. Refer to engine manual and
maintenance schedule for oil recommendation and
capacities.
Change the engine oil and filter after the first 5 hours of
operation, per the engine manufacturer’s recommendations
after that. If tractor is being operated in extremely dirty
conditions, then it is recommended oil be changed more
frequently.
The oil drain and oil filter are located at the rear of the
engine. Fig. 4-10
Engine air filter
Perform engine air filter maintenance per the Service
Interval chart on page 4-2.
A specially designed dry filter is standard equipment on
the Hustler ATZ tractors and supplies clean combustion air
to the engine. Fig. 4-11
Recommended service procedure
Many engine failures can be attributed to improper air
cleaner servicing. Ingested dust and dirt will cause cylinder,
piston and bearing damage in a few hours. “Dusted”
engines will result from:
1. Overservicing the air filter element.
2. Improper installation.
3. Damaged filter, seals or canister.
4. Incorrect air filter element size.
5. Use of poorly designed aftermarket air filter elements.
Air cleaner servicing is an inexpensive maintenance
check that can prevent costly non-warrantable premature
engine damage.
Figure 4-9
Fuel shut-off valve
4-6
397463 1/20/05
Figure 4-10
Engine oil
drain plug
Engine oil filter
Figure 4-11
Pre-cleaner
Canister
Figure 4-12
Indicator
Reset
button