REAR SWING FLAIL
OPERATOR’S MANUAL
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PTO SLIP CLUTCH / DRIVE SHAFT
•
New slip clutches
(1)
, or any slip
clutch
(1)
not used for 30 days should
complete the run-in procedure:
◦
Disengage the PTO power and
turn off the tractor.
◦
Loosen the six nuts
(2)
(evenly and
on opposite sides) until loose,
then tighten them one full turn.
◦
Start the tractor and engage the
PTO power; run for several seconds or until the slip clutch
(1)
visible
smokes, then disengage the PTO power and shut off the tractor.
◦
Tighten the six nuts
(2)
(evenly and on opposite sides) a half turn at a
time until the six springs
(3)
measure 1.1” (26mm) using a vernier scale.
-
NOTE:
Measure as accurately as possible - a dimensional difference
of 1/64” (0.4mm) can result in a 15% variance in torque. Over
tightening can cause the slip clutch
(1)
to fail and slip.
•
When rebuilding slip clutches
(1)
, follow the below listed procedure:
◦
Disconnect and remove the PTO drive shaft from the slip clutch
(1)
.
◦
Loosen the six nuts
(2)
(evenly and on opposite sides) until loose.
Remove them with the bolts, washers, springs, and pressure plate.
◦
Seperate the hub, yoke, and friction discs. Discard all old
friction discs.
◦
Inspect the steel components for wear or warpage and replace
as needed.
◦
Inspect the bronze bushing for wear or warpage.
-
NOTE:
This is not a servicable part - the entire hub must be replaced.
◦
Clean rust and debris from the plate surfaces with a wire brush or
steel wool.
◦
Place one new friction disc on the yoke plate. Assemble the bronze
bushing / hub into the yoke plate. Add the other new friction disc.
◦
Add the pressure plate, and line up the holes in the yoke to the
pressure plate.
-
NOTE:
Double check the friction discs are seated correctly.
◦
Assemble the bolts, washers, springs, nuts, and optional stops in their
original postions.
◦
Complete the run-in procedure as described above.
(1)
(3)
(2)
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