of operation or weekly, whichever occurs first. Check more
often if system appears to be leaking or otherwise
malfunctioning.
Fluid level should be 1” from top of reservoir. Use only
SAE 10W40 SG, SF/CC, CD service motor oil.
Change hydraulic system filter element (Fig. 4-6) after
first 50 hours of tractor operation, then replace filter and oil
in reservoir every 500 hours thereafter. When changing
hydraulic oil use 1/2 unit (approximately 3.5 oz.) of Lubrizol
additive (Hustler P/N 027912). This additive, available
from your Hustler dealer, will increase the performance life
of the hydraulic system components.
The system filter is located directly in front of the
hydraulic reservoir. A standard oil filter wrench is used to
change filter, threads are right handed. Use a Hustler
approved filter element only.
IMPORTANT:
Prefill the filter element with clean oil,
before installing, to prevent drawing air into the system
pump.
1. Fill the filter element with clean system oil. Smear a
light coating of oil on upper surface of rubber seal.
2. Install the filter element on base. Tighten the oil filter
by hand until the filter seal makes contact with the
filter head, then tighten an additional 3/4 turn with a an
oil filter wrench. — DO NOT OVERTIGHTEN.
3. Start tractor engine and let run at approximately 2/3
throttle for a few minutes to work any trapped air out
of the system before engaging the steering control
lever.
4. Stop the engine and check the filter and connections
for leaks.
5. Check the hydraulic reservoir for specified oil level.
Add clean oil as necessary.
Clean or replace hydraulic reservoir cap annually. Cap
may be cleaned by dipping in or flushing with cleaning
solvent. Follow manufacturer’s instructions and warnings
for application of solvent type selected.
NOTE:
The hydraulic pumps are equipped with bypass
valves. For more information refer to Operation section,
Moving tractor with stalled engine.
A hydraulic oil heat exchanger is installed on the Super
Z. This heat exchanger is designed to keep hydraulic system
oil temperature lower in hot operating conditions or heavy
continuous operating conditions.
This hydraulic heat exchanger is located above the
engine. Air is drawn across the cooling fins by an electric
fan located above the heat exchanger. Fig. 4-7
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 fuel tanks are located in the tractor’s fenders. (Fig.
4-8) 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. 4-9) is installed in the fuel line
between fuel tanks and engine fuel pump on the front side of
the engine. Replace filter annually or after every 500 hours
of operation, whichever occurs first.
4-5
350157 Rev 11/02
Figure 4-7
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Engine
Figure 4-8
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Figure 4-9
Fuel filter