Gearbox Lubrication
For gearbox, use a high quality gear oil with a viscosity index of 80W or 90W and an API service rating of
Driveline Lubrication
1.Lubricate the driveline slip joint every eight operating hours. Failure to maintain proper lubrication could result in damage to
2.Lower cutter to ground, disconnect driveline from tractor PTO shaft, and slide halves apart but do not disconnect from each other.
3.Apply a bead of grease completely around male half where it meets female half. Slide drive halves over each other several times to distribute grease.
SLIP CLUTCH ADJUSTMENT
The slip clutch is designed to slip so that the gearbox and driveline are protected if the cutter strikes an obstruction.
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:
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 the compression springs (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 (4), 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
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.
1.Flange yoke
2.Friction disc
3.Hub,
4.Drive plate
5.Drive plate
6.Thrust plate
7.12 mm x 115 mm GR8.8 HHCS
8.Compression spring
9.Flat washer
10.12 mm x 1.25P Nylok lock nut
11.12 mm x 65 mm GR8.8 HHCS
12.12 mm x 1.5P Nylok lock nut
Figure 12. Slip Clutch Assembly
18 Owner Service | MAN0680 (11/30/2007) |
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