Clutch Release Bearing Lubrication
Lubricate the release bearing as follows:
- With the vehicle parked on a level surface, apply the parking brakes and chock the rear tires.
- Remove the clutch inspection plate.
- Wipe away any dirt from the grease fitting. See Fig.. Using a pressure-type
grease gun equipped with the recommended grease, lubricate the bearing
until excess grease purges from the rear of the release bearing (toward
the transmission).
Note: Some clutch release bearings are equipped with a lubrication extension that extends outside of the clutch housing. It is not necessary to remove the clutch inspection plate when the lubrication extension is used.
Fig. 1, Release Bearing Grease Fitting
- Wipe off excess grease and apply it to both the yoke finger
and sleeve bushing contact points. See Fig..
-
Sleeve Bushing Contact Point
-
Yoke Finger Contact Points
Fig. 2, Grease Contact Points
-
- Install the clutch inspection plate.
Note: For lubricating the release bearing, Eaton Fuller recommends a lithium-base grease that can operate up to at least 325°F (163·C) and meets the NLGI Grade 2 or 3 specification.
Meritor recommends a lithium-base high-temperature grease that meets the NLGI Grade 3 specification.
Notice: Do not over-lubricate the clutch release bearing. Over-lubrication could contaminate the clutch internally, causing clutch slippage and premature failure. Do not use chassis grease or multipurpose lubricants.