located in front of the engine and under the operator’s
platform. Fig. 4-6
Check oil level in hydraulic system after every 50 hours
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 to the right 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
Mini 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. Do not refuel in enclosed trailer or other
enclosed areas. Clean up any fuel spills. 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.
4-9
302638 Rev 1/05
Figure 4-7
Cooling fan
Heat
exchanger
Engine
Figure 4-8
Fuel tank
Figure 4-9A
Fuel filter
Kawasaki engine
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