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Simplicity/
Adjustments
CONTENT OF SECTION
This section of the manual contains adjustment
procedures for the tractor, mower and engine. A
simplified wiring diagram of the tractor (figure 44)
is provided as an aid in locating electrical
problems.
WARNING
To avoid serious injury, perform adjust¬
ment procedures on the tractor only when
the engine is stopped. Always remove the ig¬
nition key before beginning the adjustment
procedures to prevent accidental starting of
the engine.
CLUTCH-BRAKE ADJUSTMENT
Correct adjustment of the clutch and brake
mechanisms is vital to smooth machine motion
and tractor braking. These adjustments also affect
operation of the parking brake. The total adjust¬
ment procedure consists of three adjustments.
These adjustments should be performed in the
following order:
•
Brake rod adjustment
•
Clutch rod adjustment
•
Clutch rod tension adjustment
Brake Rod Adjustment
1. With the tractor on a level surface, place the
transmission in gear and release the parking
brake. Grasp the brake rod (item A, figure 30)
and push it firmly forward to seat the brake
band on the drum.
2.
Measure the' gap between the locking nuts
(items B and C) and the spring (item D) on the
brake rod. The gap should measure between
7/16 and 9/16 inch (11 to 14 mm).
3.
If the gap is not between 7/16 and 9/16 inch,
loosen the locking nuts (items B and C) on the
end of the brake rod. Turn the nuts closer to or
away from the spring to achieve the correct
measurement.
4.
Hold locking nut (item C) with a wrench while
tightening the other locking nut (item B) to it
when the correct measurement is reached.
Clutch Rod Adjustment
1.
Make sure that the clutch-brake pedal re¬
mains released throughout the adjustment
procedure.
2.
Firmly press the clutch idler pulley (item A,
figure 31) against the drive belt (item B) to take
all slack out of the drive belt.
3.
Measure the gap between the adjusting nuts
(items A and B, figure 32) and the rod guide
(item C)., The gap should be between 7/16 and
9/16 inch (11 to 14 mm) with the idler belt
pressed firmly on the belt. If it is not, adjust as
follows.
4.
Loosen locking nut A from locking nut B. Turn
locking nut B forward or back until the gap
measurement is 7/16 to 9/16 inch. When the
correct measurement is reached, hold locking
nut B with a wrench while tightening locking
nut A to it. Tighten locking nuts together, mak¬
ing sure locking nut B does not move.
33
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