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Figure 64
1. Adjusting nut
2. Slot
2. Check adjustment by inserting a feeler gauge
through the slots next to the studs (Figure 64).
3. The proper disengaged clearance between the
clutch plates is 0.012-0.024 inch (0.30-0.60
mm). It will be necessary to check this
clearance at each of the three slots to ensure
the plates are parallel to each other.
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 Brake
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
3. Feeler gauge
brake does not hold securely, an adjustment is
required.
Checking the Parking Brake
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. Apply the parking brake. Setting the parking
brake should take a reasonable amount of
force. If the parking brake does not hold
securely, an adjustment is required. Refer to
Adjusting the Parking Brake.
Note: When the brake is engaged, the brake
handle should be in the 1 o'clock position.
Adjusting the Brakes
The brake lever is on the upper control bar. If
the parking brake does not hold securely, an
adjustment is required.
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 23.
5. Loosen the top and bottom jam nuts
(Figure 65).
6. To adjust the brake, remove the hair pin cotter
and clevis pin from the lower brake lever
(Figure 65).
7. Rotate the brake rod in the yokes. To tighten
the brake, lengthen the rod between the yokes.
To loosen the brake, shorten the rod between
the yokes (Figure 65).
Note: The brake rod should be threaded into
both yokes the same distance.
8. Secure the yoke to lower brake lever with the
hair pin cotter and clevis pin (Figure 65).
9. Tighten the top and bottom jam nuts
(Figure 65).
10. Check the brake operation again; refer to
Checking the Brake.
51
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