Rhino Mounts TW144 manual Slip Clutch, Seasonal Clutch Maintenance

MAINTENANCE

MAINTENANCE

SLIP CLUTCH

A slip clutch is incorporated in the PTO driveline. It is designed to slip, absorb the shock load, and protect the driveline.

After the first hour of operation, the slip clutch should be checked for overheating. After this first check, the slip clutch should be checked weekly or anytime there is overheating. To adjust the slip clutch, tighten the spring bolts to 1-9/16” length. Any increase or decrease in this tightness will change the torque rating and could cause premature failure.

The slip clutch should be checked periodically and adjusted to compensate for wear. The lining plates are 1/8” thick when new. Replace after 1/16” wear. If the mower has been idle for an extended period of time, or in wet weather, before operating check to be sure the friction lining plates are not frozen or rusted together. Should this freezing occur refer to the procedure described in the “Seasonal Clutch Maintenance” section on the next page.

There are two friction lining plates in the slip clutch. These should be checked weekly for oil or grease, wear, and moisture which could cause corrosion on the drive plates.

SEASONAL CLUTCH MAINTENANCE

It is important that the clutches slip when an obstacle or load heavier than the clutch setting is encountered. Before using the cutter each season, use the following procedure to make sure the clutch will slip and give the overload protection required.

1.Loosen nuts (Figure Mnt-0007)on springs until the springs can freely rotate, yet remain secure on bolts.

2.Attach mower to tractor and start the tractor. Set the engine speed at 1200 RPM.

3.Engage the PTO (approximately one second) and then quickly disengage it. The friction lining plates should break loose.

4.Turn tractor off and tighten the nuts on the springs to their original position of 1-9/16” compressed spring length.

TW144 01/11 Maintenance Section 5-16

©2011 Alamo Group