the clutch bearing housing and the transmission input
shaft. Use a pressure-type grease gun equipped with
high-temperature grease only, and lubricate until
grease flows from the release bearing housing. De-
press the clutch pedal a couple of times before start-
ing the engine.
25–04 Meritor Clutch Release
Bearing Lubrication
The standard clutch release bearing is sealed, and
does not require lubrication. If the vehicle is
equipped with an optional clutch release bearing with
a grease fitting, lubricate the bearing as follows:
1. Park the vehicle on a level surface. Apply the
parking brakes, and chock the rear tires.
2. Remove the clutch inspection plate.
NOTE: Some clutch release bearings are
equipped with a lubrication extension that ex-
tends outside of the clutch housing. It is not
necessary to remove the clutch inspection plate
when the lubrication extension is used.
NOTE: For lubrication of the release bearing,
Meritor recommends a lithium-base high-
temperature grease that meets the NLGI grade
three specification.
3. Wipe any dirt away from the grease fitting. See
Fig. 1. Use a pressure-type grease gun
equipped with the recommended grease, and
lubricate the bearing until excess grease purges
from the rear of the release bearing (toward the
transmission).
CAUTION
Do not over-lubricate the clutch release bearing.
Over-lubrication could contaminate the clutch in-
ternally, causing clutch slippage and premature
failure. Do not use chassis grease or multipurpose
lubricants.
4. Wipe off excess grease and apply it to both the
yoke-finger and the sleeve-bushing contact
points. See Fig. 2.
5. Install the clutch inspection plate.
6. Remove the chocks.
f250048a
1
2
10/19/93
1. Clutch Release Cross-Shaft
2. Grease Fitting
Fig. 3, Cross-Shaft Grease Fitting, Left-Side
f260146a
05/27/93
Fig. 4, Cross-Shaft Grease Fitting, Right-Side
Clutch25
Century Class Trucks Maintenance Manual, April 200525/2
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