4-5-6 Clutch Backing Plate Retaining Ring Measurement

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Fig 1: Measuring 4-5-6 Clutch Backing Plate Retaining Ring

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedures Install the clutch assembly into a hole in the workbench Zero out the dial indicator on the DT 47868-1 pack travel weight. Special Tools DT 47868-1 Pack Travel Weight GE 8001 Dial Indicator Set GE 26900-13 Magnetic Base For equivalent regional tools, refer to Special Tools .
1	4-5-6 Clutch Apply Passage TIP: While using one finger to block the top passage hole on the turbine shaft, apply compressed air to the opposite top passage hole, and observe the dial indicator measurement. Refer to Clutch Backing Plate Retaining Ring Specifications (6L90) , Clutch Backing Plate Retaining Ring Specifications (6L80) to determine the correct retainer.

Callout

Component Name

Preliminary Procedures

Install the clutch assembly into a hole in the workbench
Zero out the dial indicator on the DT 47868-1 pack travel weight.

Special Tools

DT 47868-1 Pack Travel Weight
GE 8001 Dial Indicator Set
GE 26900-13 Magnetic Base

For equivalent regional tools, refer to Special Tools .

4-5-6 Clutch Apply Passage
TIP: While using one finger to block the top passage hole on the turbine shaft, apply compressed air to the opposite top passage hole, and observe the dial indicator measurement. Refer to Clutch Backing Plate Retaining Ring Specifications (6L90) , Clutch Backing Plate Retaining Ring Specifications (6L80) to determine the correct retainer.