ENCLOSURE GP-SOUND SUPPRESSION 3997556 - Caterpillar

A torque wrench with a 8S2243 Retainer Nut or 5P1668 Nut can also be used to measure the force needed to engage the clutch. Install the torque wrench and nut to the engagement shaft on the end opposite to the lever. The minimum and maximum torques needed to engage the clutch are given in the Chart B.
3. Keep the angle between the clutch lever and the spring scale at 90°. Pull the spring scale in the direction shown in the illustration until the clutch engages. Make a record of the amount of force needed to engage the clutch. Check the chart for the correct amount of force needed to engage the specific clutch.4. If the amount of force needed to engage the clutch is not correct, remove the inspection cover. See Illustration 1. Turn the clutch until the lock pin can be seen through the inspection opening. Release the push-type lock pin and turn the adjustment ring clockwise as seen from the rear of the clutch to increase the force needed or counterclockwise to decrease the force needed to engage the clutch.5. Check the amount of force needed to engage the clutch again. Adjust the adjustment ring until the force is correct. After each adjustment check the lock pin to make sure it is in a notch.
Illustration 1. Location of parts in FPTO.6. The initial adjustment must be checked frequently to prevent slippage during the break-in until the clutch disc has a good seat.7. The new adjustment specifications take the place of the former specifications that are on the clutch identification plates and those given in the Service Manual. If the specification on the clutch identification plate is different from the new specification, change it to the new specification. When more force than the maximum force is needed to engage the clutch, failures of FPTO components can result. Always be sure the FPTO has the correct lubrication before any adjustment is made.B) Adjustment of the Vessel FPTO Engagement Linkage Travel: The engagement linkage used on the vessel to connect the FPTO engagement lever to the deck top handle must have enough travel so the FPTO can be fully engaged and disengaged. Boat manufacturers usually give enough linkage travel so it is necessary during FPTO installation to be sure the correct connection is made between the vessel's linkage and the FPTO lever. Not enough linkage travel for engagement can cause clutch slippage. Not enough linkage travel for disengagement can cause excessive (too much) collar wear and sliding sleeve failures.
The deck top engagement handle must not have any bolts, stops, or hooks that hold the lever in the engaged position. During engagement, the FPTO linkage must seek (find) its own position. If the lever is held in the engaged position, it will load the collar and cause collar and sliding sleeve failures.
C) Adjustment of Main Tapered Roller Bearings: The main tapered roller bearings must be adjusted to the correct FPTO end play to get good bearing life. The 5N1729