114674_0512 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 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.
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: All oil drips or spills must be cleaned off of
the exhaust system before operating the machine.
Draining the engine oil:
1. Locate the oil drain valve on the engine. Figure 5-1
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.
4. Position the loose end of the hose out to the side of the
mower so that it can drain into a suitable oil drain
container.
5. With the hose in position, twist the valve
counterclockwise and pull out to open the valve. Allow
10 minutes for engine oil to adequately drain.
6. After oil is drained, close the valve by pushing in on the
valve body and twisting it clockwise.
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. Re-install the dust cap on the oil drain valve nipple.
9. 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. Figure 5-2
Carbon canister
Some Hustler
®
TrimStar mowers will have a carbon canister
incorporated into the fuel system. Figure 5-3
These canisters should be replaced every 5 years or if they
become damaged.
Fuel evaporation system filter
All domestic Hustler
®
TrimStar mowers, manufactured after
January 1, 2011, have a fuel evaporation system filter. Non-
domestic Hustler
®
TrimStar mowers (units with a CE or EX
extension after the model number) manufactured between serial
number 11010000 and 12010641, have a fuel evaporation sys-
tem filter. Non-domestic TrimStar mowers (units with a CE or
EX extension after the model number) manufactured after serial
number 12010641 do not have a fuel evaporation system filter.
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
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