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Figure 39
1. Adjusting nut
2. Slot
Cooling System
Maintenance
Cleaning the Air Intake
Screen
Before each use remove any build-up of grass, dirt
or other debris from the cylinder and cylinder head
cooling fins, air intake screen on flywheel end, and
carburetor-governor levers and linkage. This will
help insure adequate cooling and correct engine
speed and will reduce the possibility of overheating
and mechanical damage to the engine.
Brake Maintenance
Servicing the Brakes
Before each use, check brakes on both a level
surface and slope.
Always set the parking brake when you stop the
machine or leave it unattended. If the parking
brake does not hold securely, an adjustment is
required.
Checking the Brakes
1. Park the machine on a level surface, disengage
the PTO.
2. Stop the engine, remove the key, and wait for
all moving parts to stop before leaving the
operating position.
3. Feeler gauge
3. Apply the parking brake. The wheels must lock
when you try to push the machine forward.
4. If the wheels do not lock, adjust the brakes.
Refer to Adjusting the Brakes.
5. Release the brake and press upper control bar
very lightly, approximately 1/2 inch (13 mm).
The wheels should rotate freely, if not; refer to
Adjusting the Brakes.
Adjusting the Brakes
The brake lever is on the upper control bar. If
the parking brake does not hold securely, an
adjustment is required.
Note: For the initial adjustment, adjust the wing
nut until it is 1-1/4 inches from the top of the rod
(Figure 40).
1. Park the machine on a level surface, disengage
the PTO, and set the parking brake.
2. Stop the engine, remove the key, and wait for
all moving parts to stop before leaving the
operating position.
3. Check the brake before you adjust it; refer to
Checking the Brakes.
4. Release the parking brake; refer to Releasing
the Parking Brake in Operation, page 13.
5. To adjust the brake remove the hair pin cotter
and washer from the brake lever and trunnion
(Figure 40).
33
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