Clutch Assembly Adjustment MPK Resetting Procedure in Vehicle

Reset the clutch if one or more of the following conditions occurs:

1. Hold the clutch pedal in the disengaged position.




Important: The wear indicating tab should move with finger pressure. Do not force the tab to the "NEW" position.

2. Move the clutch wear tab to the NEW position. If the clutch wear tab does not move to the NEW position with finger pressure.
3. Release the clutch pedal.
4. The solo wear indicating tab is now reset.




Important: It will be necessary to rotate the flywheel in order to gain access to all 4 clutch pressure plate shipping bolts.

5. Install 4 3/8" x 16x1-1/4" UNC hex head bolts -- the same bolts used to cage the pressure plate when the clutch was shipped. Use the inspection window in the transmission bell housing in order to gain access to the pressure plate. Turn the 4 bolts, until the pressure plate is fully retracted.

Specification
0.062 gap under each tamper proof plate spacer bolt with the pedal pushed to the floor.




6. Remove all 4 bolts. Ensure that there is no gap between the plate spacer roll pin and the tamper proof plate spacer bolt when the clutch pedal is in the up position.



7. Depress the clutch pedal (compressing clutch brake) 5 or more times in order for the Solo to automatically reposition the bearing.

Clutch Assembly Adjustment MPK ResettingProcedure Out of Vehicle

Important: Use this procedure if transmission and clutch were removed without following correct Removal Procedure.

1. Support the clutch in an arbor press with the bearing facing down.

Allowing an additional 25.4 mm (1 in) space for the bearing to move down, and allow access to install the four shipping bolts.




2. Center the ram and press downward on the retainer until it comes to a stop. Lock the ram in position.

Important: Do not apply excess force on the retainer because the Solo's internal stops can deform the clutch's stamped cover. Eaton recommends using a manually operated arbor press, not a hydraulic press, to avoid distortion of the clutch' stamped cover.




3. Remove the 4 shipping bolts if they have been installed.



4. Raise the ram approximately 2.54 mm (1 in).
5. Press down on the retainer until it comes to a stop.

Lock the ram in this position.

Important: Do not apply excess force on the retainer because the Solo's internal stops can deform the clutch's stamped cover. Eaton recommends using a manually operated arbor press, not a hydraulic press, to avoid distortion of the clutch's stamped cover.

6. Use finger pressure to slide the clutch wear tab to the left until it is at the NEW position and hold it in this position with a magnet.
7. Locate 4 3/8 in x 16 x 1 1/4 in UNC, hex head machine screws. Install them into the 4 cover holes and turn them finger tight.




Important: You may need to temporarily install slightly longer bolts to allow access of the 1 1/4 in shipping bolts.

8. Progressively tighten the four shipping bolts in a crisscross pattern until the face of the pressure plate is (0.525 in) below the mounting surface.

Important: This important step will reset the pressure plate spacers and allow the clutch to release after reinstallation.

9. Install the clutch.

Clutch Assembly Adjustment Lubrication

Some models are supplied with a sealed release bearing. These are not equipped with a lube fitting and requires no additional grease for the life of the clutch.

The release bearing has been greased. If the vehicle is in regular service, grease the clutch every 10,000 hours or once per month. If the vehicle is in severe service, grease the clutch every 250 hours or once per month. Only high temperature greases should be used. Chassis lube or all purpose lubricants are not recommended.

1. Apply grease until the grease purges from the bearing housing onto the clutch brake and input shaft. Use a lithium soap base E.P. grease having a minimum +325°F operating range with N.L.G.I. Grade 1 or 2 specs.




Important: The clutch brake facing is designed to work best when it is coated with grease.

2. Manually apply lube to the transmission side of the clutch brake and on the input shaft between the brake and the bearing in order to lube the bushing inside the sleeve.



3. Apply a small amount of grease between the bearing wear pads and the clutch release fork. Repeat this at normal intervals.