Clutch Lubrication Requirements For UltraShift Plus Transmission

Unlike the Eaton UltraShift automated transmission, the Eaton UltraShift Plus transmission does not require greasing during vehicle servicing.

Figure one

The UltraShift Plus transmission has grease zerk locations for lubricating the clutch release bearing and the cross-shaft bushing of the ECA motor, in addition to the clutch release bearing and the bushing for the shaft of the ECA motor.

Over lubricating these components can contribute to a slipping clutch by getting too much grease into the clutch environment.

Figure two

The heavy-duty ECA clutch housing has two grease fittings on the lower right side of the clutch housing. The upper grease zerk is marked “CS” for the upper cross-shaft assembly, while the lower grease zerk is marked “RB” for the clutch release bearing. (See Figure 1.)

The cross-shaft zerk applies grease to the upper cross-shaft assembly. Apply grease through the zerk until grease purges from the weep hole in the upper cross-shaft boss. (See Figure 2.)

Figure three

The release bearing zerk applies grease to the clutch release bearing. Apply grease through the zerk until grease purges from the side of the release bearing facing the transmission. (See Figure 3.)

Note: Open the inspection cover so you can observe the purging of the grease from the release bearing and the cross-shaft weep hole during the greasing procedure.

Failure to follow proper clutch lube intervals can result in clutch failure.