125816 5-1 REV B
ENGINE MAINTENANCE
General Engine Maintenance
Detailed instructions and recommendations for break-in
and regular maintenance are specified in the Engine Owner’s
Manual. Please refer to this manual for engine servicing,
lubricating oil levels with quality and viscosity
recommendations, bolt torques, etc. The engine warranty is
backed by the engine manufacturer. Special attention should
be paid to applicable data which will not be duplicated here.
Engine Oil and Filter
Check engine oil daily and after every 4 hours of operation.
The machine must be sitting level when checking oil. Refer to
engine manual and maintenance schedule for oil
recommendation and capacities. Hustler
®
Motor Oil is
recommended.
Change the engine oil and filter after the first 5 hours of
operation and per the engine manufacturer’s
recommendations after that. If mower is being operated in
extremely dirty conditions, then it is recommended oil be
changed more frequently.
IMPORTANT: After the new oil filter has been installed,
clean up any oil which may have spilled onto the engine plate,
engine exhaust system, and muffler guard.
Vanguard, Vanguard EFI (without Oil Guard™ option) &
Kawasaki engines — Draining the engine oil:
1. Locate the oil drain valve on the engine. Figure 5-1 and
Figure 5-2
2. Position a suitable oil drain container under the
machine below the oil drain valve.
3. Twist the valve counterclockwise to open the valve.
Allow 10 minutes for engine oil to adequately drain.
4. After the oil is drained, close the valve by turning it
clockwise.
5. Once the valve is closed, clean up any spilled oil.
IMPORTANT: All oil drips or spills must be cleaned off
of the engine plate, engine exhaust system, and muffler
guard before operating the machine.
Vanguard EFI Engine with Oil Guard™ — Draining the
engine oil:
1. Locate the oil drain valve on the bottom of the oil tank.
Figure 5-3
2. Locate the oil drain hose that was supplied with the
machine. Be sure to clean and clear it of debris that
might block the flow of the engine oil.
3. Attach one end of the hose onto the oil drain valve
nipple. Make sure the hose is pushed all the way onto
the valve. Figure 5-3
4. Position the loose end of the hose through the opening
in the engine plate, so that it can drain into a suitable
oil drain container.
IMPORTANT: Make sure the oil does not come in
contact with the belts or clutch.
5. Position a suitable oil drain container under the
machine below the end of the hose.
Allow the engine to cool before changing the
engine oil. If the engine has been running, use
caution when changing the engine oil as it will be
very hot. You should wear the appropriate
protective gear to avoid being burned or exposed
to engine oil.
Vanguard engine (non EFI) shown
A. Oil drain valve
Figure 5-1
Kawasaki engine shown
A. Oil drain valve
Figure 5-2
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