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37
WARNING
To avoid serious injury, perform adjustments
only with engine stopped, key removed and
rider on level ground.
A
B
B
B
Figure 36. PTO Clutch Adjustment
A. Adjustment Window (Qty. 3, one shown)
B. Adjustment Nut
B
A
C
Figure 37. Adjust PTO Clutch
A. Window
B. Adjustment Nut
C. .016”-.018” (0,40-0,45mm) Feeler Gauge
PTO Clutch Adjustment
Check the PTO clutch adjustment after every 100
hours of operation. Also perform the following
procedure if the clutch is slipping or will not engage, or
if a new clutch has been installed.
1. Remove key from ignition switch and disconnect
spark plug wires to prevent the possibility of
accidental starting while the PTO is being
adjusted.
2. See Figure 38. Note the position of the 3
adjustment windows (A) in the side of the brake
plate and the nylock adjustment nuts (B).
3. Insert a .016”-.018” (0,40-0,45mm) feeler gauge
(C) through each window, positioning the gauge
between the rotor face and the armature face as
shown in Figure 36.
4. Alternately tighten the adjustment nuts (B, Figure
38) until the rotor face and armature face just
contacts the gauge.
5. Check the windows for an equal amount of tension
when the gauge is inserted and removed, and
make any necessary adjustments by tightening or
loosening the adjustment nuts.
NOTE: The actual air gap between the rotor and
armature may vary even after performing the
adjustment procedure. This is due to dimensional
variations on component parts, and is an acceptable
condition.
6. Check the mower blade stopping time. The
mower blades and mower drive belt should come
to a complete stop within five (5) seconds after the
electric PTO switch is turned off.
Blade Brake Check
Mower blades and mower drive belt should come to
a complete stop within five (5) seconds after electric
PTO switch is turned off.
1. With parking brake engaged, PTO disengaged and
an operator in the seat, start the engine engine.
2. Have an assistant observe the mower drive belt
through the opening between the frame and top of
mower deck. Engage the PTO and wait several
seconds. Disengage the PTO and check the
amount of time it takes for the mower drive belt to
stop.
3. If the mower drive belt does not stop within five (5)
seconds, perform the PTO Clutch Adjustment. If
the belt still does not stop within five (5) seconds,
see your dealer.
Troubleshooting, Adjustments, & Service
Not for
Reproduction