Engine Air Filter - HUSTLER 3500 Owner's Manual

certain period of time is required before the engine oil
completely flows down from the oil filler to the
crankcase.
4. Check the oil level, accounting for the higher oil level
due to the oil filter oil capacity.
Engine oil filler
Dipstick
Figure 4-13
Engine oil
fill cap
Figure 4-14

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 4-16 Change the filter whenever the Air Cleaner
Restriction Warning Light comes on. Figure 3-1
These units are equipped with a safety filter. The filter
element slides over the safety filter. NOTE: For maximum
engine protection and air cleaner service life, install a new
inner safety element every third primary element change or
after every 1000 hours of operation, whichever comes first.
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.
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. Install the new element and 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 service life of an engine to cause a dusted engine.
Do not clean element, replace with a new element only.
Cleaning used air filter elements, through improper cleaning
procedures, can get dust on the inside of the filter causing dirt
ingestion and engine failure.
4-8
Engine oil
drain
Figure 4-15
Clean the
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