117373 5-1 REV A
ENGINE MAINTENANCE
General Engine Maintenance
Detailed instructions and recommendations for break-in and
regular maintenance are specified in the Engine Owner’s Man-
ual. 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 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.
Mower must be on a level surface when checking oil. Refer to
engine manual and maintenance schedule for oil recommenda-
tion and capacities.
Change the engine oil and filter after the first 5 hours of oper-
ation and then per the engine manufacturer’s recommendations
after that. If mower is being operated in extremely dirty condi-
tions, 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,
muffler, and heat shield.
Draining the engine oil :
1. Locate the oil drain valve on the lower right side of the
engine.
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. Figure 5-1
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.
4. Position the loose end of the hose forward and down in
front of the right side transmission so that it can drain
into a suitable oil drain container.
5. With the hose in position, use a 10 mm wrench or socket
and open the valve approximately 4 turns in the
counterclockwise direction. Allow 10 minutes for engine
oil to adequately drain.
6. After oil is drained, close the valve by turning it in the
clockwise direction until it is fully closed.
7. Once the valve is closed, carefully remove the oil drain
hose and clean up any spilled oil.
IMPORTANT: All oil drips or spills must be cleaned off
of the exhaust system before operating the machine.
8. Clean the oil drain hose and store it appropriately. Figure
5-1
Engine Air Filter
Perform engine air filter maintenance per the engine’s
owner’s manual.
Fuel evaporation system filter
All Hustler
®
Raptor mowers have a fuel evaporation system
filter. This filter must be checked and replaced every 100 hours
or annually whichever comes first. Figure 5-2
WARNING
If the engine has been running and is up to operating tem-
perature, allow the engine to cool before changing the oil.
Engine and engine oil will be very hot, so be very careful
when changing oil and wear the appropriate protective
gear to avoid being burned or exposed to engine oil.
Figure 5-1
Figure 5-2
Oil drain hose
Oil drain valve
Fuel evaporation
system filter
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