Maintenance
29
PTO
(Power T
ake Off) Clutch
and Brake
Service Interval/Specification
Check PTO clutch and brake after every 100
operating hours or yearly, whichever occurs first. If
attachment drive slippage or slow stopping is noticed
adjust clutch and brake.
Adjusting PTO Clutch and Brake
1. Disengage the power take off (PTO), set the
parking brake, and turn the ignition key to
“OFF” to stop the engine. Remove the key.
2. Remove the belt cover.
3. To adjust clutch, remove hairpin cotter and
thread trunnion onto rod one turn at a time until
there is moderate resistance as the clutch
engages and clutch slippage is eliminated
(Fig. 31).
4. To adjust brake, engage PTO clutch and loosen
(2) adjustment nuts (Fig. 31).
5. Place a 0.012 (0.3 mm) feeler gauge between
brake pad and clutch pulley. Holding brake pad
against feeler gauge tighten adjusting nuts
(Fig. 31).
6. Disengage PTO and check if brake pad engages
properly to provide braking of PTO pulley.
7. Install the belt cover.
3
4
5
m–3444
6
2
1
Figure 31
1. Hairpin
cotter
2. Trunnion
3.
Brake pad
4. Pulley
5.
0.012 (0.3mm) feeler
gauge
6.
Adjustment nut
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