Slip Clutch Specifications; Driveline Protection - Priefert FMX Operator's Manual

Section 1: Set-Up Requirements
CAUTION
If the safety chains are not correctly fitted this will result in
excessive tension causing the safety hook to open on the protection
side. when this occurs it is necessary to replace the damaged hook with
an original one.
This chain must be attached to the inner driveline shield and to the
implement to restrict shield rotation.
Measurements:
Note: Do not use the driveline as a support or running board. Do not
use the anti-rotation chain to support or transport the driveline when it is
detached from the tractor. Use the storage bracket on the machine.

Slip Clutch Specifications

Slip (Friction) clutches have adjustable torque settings.
setting varies with the different compression of each spring. All springs
should have an equal amount of compression (a sliding caliper or
measuring tape will aid in setup and adjustments). Your slip clutch
comes factory preset to the correct torque setting.
CAUTION
Slip clutches may become hot. Do Not Touch! Keep the slip
clutch area clear of any material that may catch fire!
Important: Do not over-tighten the compression bolts as this may
impair performance or cause premature wearing of the slip clutch!
Before first use or after a long storage, loosen set screw on
•
pressure nut.
Back off pressure nut to free clutch plates.
•
Tighten pressure nut until the clutch plates are snug.
•
Tighten pressure nut another 1/4 turn.
•
Run the driveline at a low idle to slip the clutch until it starts to
•
smoke. This will remove the dirt, corrosion and surface gloss from
the clutch plate faces.
Tighten the pressure nut another 1/2 turn to set the clutch plate
•
pressure.
Tighten the set screw in the pressure nut to lock it in place. Normally
•
the clutch will slip at a 20% higher torque after the "run-in" than before.
Check the temperature of the clutch after running for 20 minutes
•
and after every 8 hours of operation.
If the clutch is hot to the touch or smokes reset the pressure nut or
•
the clutch plates will burn up and fail.
Tighten the pressure nut in 1/4 turn increments and try during
•
operation.
The clutch should be set so it does not slip during normal
•
operation. It should slip when the unit is overloaded from heavy
cutting or when striking an obstruction. If it is set for too high
torque to slip, components will fail.
Driveline Protection on RMS Model
For RMS models with PTO drivelines that have shear bolt protection;
ensure that you also secure the driveline using the snap ring that is
included after securing the driveline to the gearbox. Failure to do so may
The torque
result in serious injury or death. To remove or replace the snap ring use
snap ring pliers. If the snap ring is bent or cracked do not attempt to
operate the driveline. Immediately take the implement out of operation
until the snap ring is replaced.
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