24
Owner Service
MAN1168 (5/27/2016)
Figure 13
. Slip Clutch Assembly
SLIP CLUTCH ADJUSTMENT
The slip clutch is designed to slip so that the gearbox
and drive are protected if the cutter strikes an obstruc-
tion.
A new slip clutch or one that has been in storage over
the winter may seize. Before operating the cutter, make
sure it will slip by performing the following operation:
Compression Spring Clutch (DSO8.50, DSO10.50 &
DS10.50 Pull-Type & DS10.50 3-Point Mounted
Models)
1.
Turn off tractor engine and remove key.
2.
Remove driveline from tractor PTO.
3.
Loosen six 12 mm cap screws (7) to remove all
tension from compression spring (8).
4.
Hold clutch hub (3) solid and turn shaft to make
sure clutch slips.
5.
If clutch does not slip freely, disassemble and clean
the flange yoke (1), clutch hub (3), drive plate (5),
and thrust plate faces (6).
6.
Reassemble clutch.
7.
Compress each of the six compression springs (8)
by tightening the six cap screws (7) and lock nuts
(10). The compression springs should be
compressed to a height of 1-7/16", not including
washer (9). The minimum spring height is 1.36".
See Figure 13.
8.
If a clutch continues to slip when the springs are
compressed to 1.36", check friction discs (2) for
excessive wear. Discs are 1/8" when new. Replace
discs after 1/16" wear. Minimum disc thickness is
1/16".
1. Flange yoke
2. Friction disc
3. Hub, 1-3/4" 20-spline
4. Drive plate
5. Drive plate - SN
6. Thrust plate
7. 12 mm x 115 mm GR8.8 HHCS
8. Compression spring
9. Flat washer
10. 12 mm x 1.25P hex lock nut
11. 12 mm x 65 mm GR8.8 HHCS
12. 12 mm x 1.75P hex lock nut
1. Flange yoke
2. Friction disc
3. Hub, 1-3/4" 20-spline
4. Drive plate
5. Drive plate
6. 12 mm x 80 mm GR8.8 HHCS
7. Belleville spring
8. 12 mm x 1.75P hex lock nut
9. Lock assembly
