32
P.T.O. MAINTENANCE
CAUTION
Before servicing or making adjustments to the
machine, stop engine and remove key from the
switch.
ADJUSTING P.T.O. BELT (Fig. 48-49)
Re-tension P.T.O. belt (Fig. 49) initially after the first 10
hours of operation, thereafter, check condition and
tension of belt every 100 hours. It is recommended that
belt be replaced after every 1500 hours of operation.
1. Remove (2) screws securing P.T.O. belt cover to
adapter plate and (1) screw securing belt cover to tab
on spring anchor. Remove cover.
Figure 48
1. P.T.O. Belt Cover
2. Adapter Plate
2
1
2. Loosen (3) flange screws and flange nuts securing
adapter plate to clutch plate.
3. Insert end of 1/2 drive, 20" long, torque wrench into
square hole in clutch plate. With wrench handle parallel
to ground, pull wrench upward until 180 ft-lbs. of
torque is applied to tension belt.
4. Tighten flange screws and flange nuts locking
adjustment.
5. Reinstall P.T.O. belt cover with screws previously
removed.
Figure 49
1. P.T.O. Belt 2. Adapter Plate 3. Square hole
2
1
3
ADJUSTING CLUTCH (Fig. 50)
The P.T.O. clutch is adjustable to ensure proper
engagement and blade braking. Check clutch
adjustment initially after the first 10 hours of operation,
thereafter, check every 200 hours.
1. To adjust clutch, tighten or loosen locknuts on
flange studs.
2. Check adjustment by inserting feeler gauge thru
slots next to flange studs.
3. The proper disengaged clearance between the
clutch plates is .011 - .021 inches. It will be necessary
to check this clearance at each of the three slots to
ensure the plates are parallel to each other.
Figure 50
1. Clutch
2. Flange studs
1
2
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