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Service & Maintenance 33
MAN0506 (Rev. 9/5/2008)
NOTE: The shaft is heavy. Grasp the clutch firmly
with both hands and slide off the input shaft.
Rebuilding Friction Pack
Disassembly
1. Position clutch and universal joint assembly on a
bench so that end is accessible.
2. Remove the long bolts on the outside of the
housing that hold the friction pack together.
3. Remove the plate(s) and all internal components.
Leave the yoke/hub intact.
4. Discard friction discs.
5. If rebuilding the overrunning clutch, refer to
Rebuilding Overrunning Clutch, page 33,
beginning with Step 2.
Inspection
1. Inspect the steel and iron parts for wear, warping,
or cracks, and replace if necessary.
2. Inspect the yoke/hub for looseness. If there is more
than.03 end play, replace.
3. Clean any rust or dust from the plate surfaces with
a wire brush or steel wool.
Assembly
1. Place one new friction disc, then separator plate,
then second friction disc into housing.
2. Add the pressure plate so that the flat surface rests
on the friction disc. NOTE: The tangs on the plate
must fall into the reliefs in the housing.
3. Add the disc spring so that its inside diameter
contacts the fins of the pressure plate.
4. Assemble the compression plate and all the long
bolts. Make sure all nuts rest in their pockets.
5. Tighten all long bolts to 30 lbs-ft.
Rebuilding Overrunning Clutch
Disassembly
1. Remove the four bolts that secure the friction pack.
Remove the friction pack.
2. Using screwdriver and pliers, remove the retaining
ring that holds the overrunning clutch together.
3. Slide the collar and washer off the clutch hub,
noting the orientation of the collar for reinsertion.
4. Remove and discard the keys and leaf springs.
Inspection
1. Inspect the steel parts for wear and replace if
necessary.
2. Inspect the yoke/hub for looseness. If there is more
than .03 end play, replace.
3. Using screwdriver, scrape any hardened grease
from the overrunning key pockets.
Assembly
1. Using a multi-purpose high-temperature EP grease
or equivalent lithium grease, inject one grease gun
pump into each key pocket. Evenly wipe two more
pumps over the overrunning surface.
2. Press a new leaf spring into each pocket. The ends
should touch the bottom of the pockets.
Figure 39. Weasler Modular Friction Clutch (24K)
3. Add new keys. With one hand, hold the two keys in
the pockets.
4. Slide the collar onto the hub, orienting collar
correctly.
5. Add washer.
6. Install retaining ring.
7. Make sure clutch spins freely and only in correct
direction.
8. Reassemble friction pack.
MOUNTING CLUTCH TO SHREDDER
1. Mount and bolt the clutch hub onto the shredder
input shaft. Make sure shaft and clutch grooves
line up.
2. Re-install any shielding that was moved or
removed.
3. Run the clutch before using. Refer to Breaking In
the Clutch (Run In), page 32.