Figure 28. PTO Clutch Adjustment
A
B
B
B
A
B
C
Figure 29. Adjust PTO Clutch
28
PTO Clutch Adjustment
Perform the following adjustment if the clutch is slipping
or will not engage, or if a new clutch has been installed.
WARNING
To avoid serious injury, perform adjustments only
with engine stopped, key removed and tractor on
level ground.
MAINTENANCE
Figure 27. Brake Spring Adjustment
A
B
Brake Adjustment
1. Disengage the PTO, stop the engine, block the
wheels, remove the ignition key, and engage the
parking brake.
2. Remove the mower deck (see Mower Deck
Removal).
3. Locate the brake spring (
A
, Figure 27) and
adjustment nut (
B
).
4. With the parking brake engaged, measure the
compressed spring length. The spring should be
2-1/2” (6,4 cm) when compressed.
If the spring is not within this range, turn the
adjustment nut to compress or release the spring.
If this adjustment does not correct a braking problem,
see your dealer.
3. Insert a .012”-.015” (2,5-4,0 mm) feeler gauge (
C
)
through each window, positioning the gauge between
the rotor face and the armature face as shown in
Figure 29.
4. Alternately tighten the adjustment nuts 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 seconds after the electric
PTO switch is turned off.
7. Mower blades and mower drive belt should come to a
complete stop within five seconds after electric PTO
switch is turned off. See CHECK MOWER BLADE
STOPPING TIME section.
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. Note the position of the 3 adjustment windows (
A
,
Figure 28 and 29) in the side of the brake plate and
the nylock adjustment nuts (
B
).
Not
for
Reproduction
