1-3-5-6-7 Clutch Backing Plate Retaining Ring Measurement

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Fig 1: 1-3-5-6-7 Clutch Backing Plate Retaining Ring And Special Tools

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Install the 1-3-5-6-7 clutch piston and 1-3-5-6-7 clutch plates. Refer to 1-3-5-6-7 Clutch Assemble
1	1-3-5-6-7 Clutch Backing Plate Procedure Assemble the tools as shown and clamp the DT-50900 fixture to the bench. Apply 30 pounds of pressure to the load gauge by turning the screw on the DT-50900 fixture clockwise. Ensure the plunger of the dial indicator is located on the backing plate. Zero out the dial indicator. Remove the pressure on the load gauge by turning the screw on the DT-50900 fixture one full turn counterclockwise. CAUTION: Regulate the air pressure to 345 kPa (50 psi) maximum. High pressure could cause the piston to over travel and damage the piston seals. Apply 345 kPa (50 psi) of compressed air to the indicated hole on the DT-50905 air adapter and simultaneously adjust the screw on the DT-50900 fixture to apply 30 pounds of pressure to the load gauge. Observe the dial indicator measurement. Refer to Clutch Backing Plate Retaining Ring Specifications to determine the correct 1-3-5-6-7 clutch backing plate retaining ring. Special Tools DT-50900 Clutch Travel Support Fixture DT-50902 Adjustable Clutch Spring Compressor DT-50903 Clutch Travel Load Gauge DT-50905 Clutch Air Travel Adapter GE-8001 Dial Indicator Set Equivalent regional tools: Special Tools

Callout

Component Name

Preliminary Procedure
Install the 1-3-5-6-7 clutch piston and 1-3-5-6-7 clutch plates. Refer to 1-3-5-6-7 Clutch Assemble

1-3-5-6-7 Clutch Backing Plate

Procedure

Assemble the tools as shown and clamp the DT-50900 fixture to the bench.
Apply 30 pounds of pressure to the load gauge by turning the screw on the DT-50900 fixture clockwise.
Ensure the plunger of the dial indicator is located on the backing plate.
Zero out the dial indicator.
Remove the pressure on the load gauge by turning the screw on the DT-50900 fixture one full turn counterclockwise.

CAUTION:

Regulate the air pressure to 345 kPa (50 psi) maximum. High pressure could cause the piston to over travel and damage the piston seals.

Apply 345 kPa (50 psi) of compressed air to the indicated hole on the DT-50905 air adapter and simultaneously adjust the screw on the DT-50900 fixture to apply 30 pounds of pressure to the load gauge.
Observe the dial indicator measurement. Refer to Clutch Backing Plate Retaining Ring Specifications to determine the correct 1-3-5-6-7 clutch backing plate retaining ring.

Special Tools

DT-50900 Clutch Travel Support Fixture
DT-50902 Adjustable Clutch Spring Compressor
DT-50903 Clutch Travel Load Gauge
DT-50905 Clutch Air Travel Adapter
GE-8001 Dial Indicator Set

Equivalent regional tools: Special Tools