Woods Equipment HC54, HC48, HC72, HC60 manual Owner Service, Blade Sharpening, Slip Clutch Adjustment

3.Align crossbar (8) with blade access hole in cutter frame. Apply a liberal coating of Never Seez® or equivalent to blade pin and crossbar hole. Make sure blade offset is away from cutter. Push blade pin through crossbar.

4.Insert lock washer (15) and nut (14) through blade access hole in the cutter frame. Install on blade pin

(12)and tighten to 450 lbs-ft using a 1-11/16" socket.

Blade Sharpening

NOTICE

Closely inspect blades for cracks or nicks, replace damaged blades in sets.

When sharpening blades, grind the same amount on each blade to maintain balance. Replace blades in pairs. Unbalanced blades will cause excessive vibration, which can damage gearbox bearings. Vibration may also cause struc- tural cracks to cutter.

1.Sharpen both blades at the same time to maintain balance. Follow original sharpening pattern.

2.Do not sharpen blade to a razor edge—leave at least a 1/16" blunt edge.

3.Do not sharpen back side of blade.

Figure 13. Blade Sharpening

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.Loosen nuts on springs until the springs can rotate freely, yet remain secure on the bolts.

3.Mark outer plates of slip-disc clutch as shown in Figure 14.

4.Securely attach implement to the tractor and start the tractor.

5.Engage PTO for several seconds then quickly disengage it.

6.Turn tractor off and remove key.

7.The friction lining plates should have "slipped". Check the marks placed on the outer plates of the slip-disc clutch in step 3 to make sure this is the case.

8.If clutch does not slip, check assembly for oil, grease and debris. Clean if necessary.

9.Reassemble clutch and tighten bolts no more than 1/8 of a turn at a time until desired setting of 1.26" is reached as shown in Figure 14.

10.If excessive slippage continues, check lining plates for excessive wear. They are 1/8" thick when new and should be replaced after 1/32" of wear to ensure proper operation.

Figure 14. Slip Clutch Assembly

20 Owner Service MAN0670 (11/16/2007)