Eaton Fuller Clutch Release Bearing Lubrication - freightliner 108SD 2021 Driver Manual

Clutch
25–00 Safety Precautions
Safety Precautions in this section apply to all
procedures within this group.
DANGER
When working on the vehicle, shut down the en-
gine or motor, set the parking brake, and chock
the tires. Before working under the vehicle, always
place jack stands under the frame rails to ensure
the vehicle cannot drop. Failure to follow these
steps could result in serious personal injury or
death.
25–01 Eaton Fuller Clutch
Release Bearing
Lubrication
If the vehicle is not equipped with a maintenance-
free sealed clutch release bearing, lubricate the bear-
ing 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: 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 two or three specifi-
cation.
3. Wipe the dirt away from the grease fitting. See
Fig. 1. Use a low-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).
NOTICE
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 sleeve bushing contact points.
See Fig. 2.
108SD and 114SD Maintenance Manual, September 2015
05/27/93
NOTE: Some clutch release bearings are equipped with
a lubrication extension that protrudes from the clutch
housing.
Fig. 1, Release Bearing Grease Fitting
11/29/2010
1. Release Bearing
2. Sleeve Bushing Contact Point
3. Yoke Finger Contact Points
Fig. 2, Grease the Contact Points
5. Install the clutch inspection plate.
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