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F.
Perform the following safety check:
i.
Start the engine from the operator's
position.
ii.
Make sure that the blades do not
engage when the PTO switch is in
the O
disengaged.
Note:
disengage, install the shim, and refer
to
Troubleshooting (page
iii.
Engage and disengage the PTO
switch 10 consecutive times to
ensure that the clutch is functioning
properly.
Note:
properly, refer to
(page
Checking the Wheel-Lug
Nuts
Service Interval: After the first 100 hours—Check the
wheel-lug nuts.
Check and torque the wheel-lug nuts to 115 to 142
N∙m (85 to 105 ft-lb).
position and the clutch is
FF
If the clutch does not
56).
If the clutch does not engage
Troubleshooting
56).
Cooling System
Maintenance
Cleaning the Air-Intake
Screen
Service Interval: Before each use or daily
Before each use, remove any buildup of grass, dirt,
or other debris from the cylinder and cylinder-head
cooling fins, air-intake screen on the flywheel end,
and the carburetor-governor levers and linkage. This
helps ensure adequate cooling of the engine and the
correct engine speed, and it reduces the possibility of
overheating or mechanical damage to the engine.
Cleaning the Cooling
System
Service Interval: Every 400 hours—Check and
clean the engine cooling fins and
shrouds (more often in dirty or dusty
conditions).
1.
Park the machine on a level surface, disengage
the PTO, and engage the parking brake.
2.
Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3.
Remove the air-intake screen and fan housing.
4.
Clean the debris and grass from the engine
parts.
5.
Install the air-intake screen and the fan housing.
1. Guard and engine
air-intake screen
2. Fan housing
42
Figure 63
3. Engine-oil cooler
g403578
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