Hustler Turf Z4 - Manual (Page 27)

9-4 602223_0609
Engine oil and filter
Check engine oil daily and after every 4 hours of operation.
Tractor must be setting level when checking oil. Refer to
engine manual and maintenance schedule for oil
recommendation and capacities. Figure 9-4
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.
Engine air filter
Perform engine air filter maintenance per the Service Interval
chart shown elsewhere in this manual.
A specially designed dry filter is standard equipment on these
tractors and supplies clean combustion air to the engine. Figure
9-5.
These units are equipped with a safety filter. The filter
element slides over the safety filter. Figure 9-6
NOTE: The safety filter does not require servicing unless it
becomes contaminated with dirt or moisture.
Recommended service procedure
1. Release clamps and remove element. Clean the canister
with a damp cloth.
2. Before installing a new element, inspect it by placing a
bright light inside and rotate the element slowly, looking
for any holes or tears in the paper. Also check gaskets for
cuts or tears. Do not attempt to use a damaged element
which will allow abrasive particles to enter the engine.
3. Reinstall the dust cup. Make sure it seals all the way
around the air cleaner body, then tighten the clamps.
4. Check all fittings and clamps periodically for tightness
and inspect hoses for holes or cracks.
5. Periodically check the intake hose for signs of ingested
dust. Locate and repair the source of ingested dirt.
6. Never operate a machine without an air filter installed.
Overservicing
Overservicing occurs when an air filter element is removed
for cleaning or replacement before it is necessary. Each time the
filter is removed a small amount of dirt and dust could fall in the
intake system. This accumulated dirt can cause a dusted engine.
It only takes a few grams of ingested dirt over the normal
Figure 9-3
Figure 9-4
Fuel shutoff valve
(shown in closed position)
Left fuel tank
Right fuel tank
Engine oil fill
& dipstick
Oil filter
Oil drain
Figure 9-5
Figure 9-6
Air cleaner
Safety filter