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108604 10/08 12-13
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 - 1 turn with 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.
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. 7".
Never force anything into the heat exhanger fins which may bend or distort them. For cleaning, use
compressed air or pressurized water only.
FIG. 6 FIG. 7
HYDRAULIC RESERVOIR
HYDRAULIC FILTER
COOLING FAN
ENGINE
HEAT
EXCHANGER