6. Start the engine and let it operate at idle speed
for 3 minutes.
7. Stop the engine and make sure that there is no
oil leakage from the oil filter.
Note: If the there is oil leakage, tighten the oil
filter again.
8. Fill the oil tank with more engine oil to replace
the engine oil that the new oil filter has absorbed.
To clean the air filter
The engine will not run satisfactorily with a dirty air
filter. Clean the air filter more frequently in dusty
conditions.
To clean the air screen
Note: The air screen must be kept free of dirt to
prevent engine damage caused by overheating.
• Clean the air screen with a wire brush or
compressed air to remove dirt.
To do maintenance on the engine cooling
system
Note: A blocked grass screen, dirty or full cooling
fins, and/or removed blower housing, and so on, can
make the engine too hot and cause engine damage.
• Make sure that the grass screen, the cooling fins,
and other external surfaces of the engine are
clean at all times.
• After each interval of 100 hours of operation
(more often in extremely dusty and dirty
conditions), remove the blower housing and
other parts of the engine cooling system.
Clean the cooling fins and external surfaces as
necessary. Make sure that the engine cooling
system parts are installed correctly.
To replace the spark plugs
The spark plug type and clearance (gap setting) are
shown in
Technical data on page 40
.
• Replace the spark plugs at the start of each
cutting season or after each interval of 100 hours
of operation.
To replace the in-line fuel filter
Note:
Replace the in-line fuel filter every year at
minimum.
Replace the in-line filter if it becomes clogged and
stops the flow of fuel to the carburetor.
1. Let the engine cool.
2. Remove the in-line fuel filter (B) and seal the fuel
line sections with plugs.
3. Put the new in-line fuel filter in position in the fuel
line with the arrow pointing to the carburetor.
4. Make sure that there are no fuel line leaks and
that the clamps (A) are in the correct position.
5. If you spill, immediately clean the product.
To remove the air from the
transmission
CAUTION: Do not engage or
disengage freewheel lever when the
engine is in operation.
To keep high performance, remove the air in the
transmission before you operate the product for the
first time.
If you replace the transmission, remove the air in the
new transmission before you operate the product.
1. Park the product on a level surface that is clear
and open.
2. Stop the engine and engage the parking brake.
3. Put the freewheel control in the disengaged
position. Refer to
Transportation on page 38
.
4. Start the engine. When the engine has started,
move the throttle control to the slow position and
disengage the parking brake.
5. Do the steps that follow 3 times.
Note:
During this procedure, there can be
movement of the drive wheels.
a) Push the forward drive pedal to the full
forward position and keep it pushed down for
5 seconds before you release it.
b) Push the reverse drive pedal to the full
reverse position and keep it pushed down for
5 seconds before you release it.
6. Stop the engine and engage the parking brake.
7. Put the freewheel control in the engaged
position. Refer to
Transportation on page 38
.
8. Sit in the seat and start the engine. When the
engine has started, move the throttle control to
the half speed position.
9. Disengage the parking brake.
10. Operate the product forward for approximately 5
ft (1.5 m) then rearward for 5 ft (1.5 m). Do this
procedure 3 times.
2010 - 003 - 10.04.2023
33
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