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Chevrolet Equinox Service Manual: Case Cover Assembly Assemble Automatic Transmission Unit

Chevrolet Equinox Service Manual / Powertrain / Transmission/Transaxle / Case Cover Assembly Assemble Automatic Transmission Unit

Table 1: Fluid Seal Ring Installation
Table 2: 2–6 Clutch Piston Installation
Table 3: Low and Reverse Clutch Piston Installation
Table 4: 2-6 and Low-Reverse Piston Function Inspection
Table 5: Input Speed Sensor Installation
Fluid Seal Ring Installation

Case Cover Assembly Assemble Automatic Transmission Unit

Fluid Seal Ring Installation

Callout

Component Name

1

3–5 Reverse and 4–5–6 Clutch Fluid Seal Ring

ProcedurePlace DT-46620-3 which is part of DT-46620 seal installer over the case cover hub and adjust it so that only the bottom seal ring is exposed.Place a NEW fluid seal ring onto DT-46620-3 which is part of DT-46620 seal installer.Use DT-46620-2 which is part of DT-46620 seal installer to push the fluid seal ring down over DT-46620-3 which is part of DT-46620 seal installer into the hub ring groove.Repeat the above steps to install all 4 seal rings, adjusting DT-46620-3 which ispart of DT-46620 seal installer to the appropriate ring groove.

Special Tools

DT-46620 Seal Installer

For equivalent regional tools, refer toSpecial Tools.

2

Small Chamfer Up

Caution:Do not force the seal installer down over the seals as thiswill roll and damage the seals. The large chamfer is designed tofit over the over stretched seal. Use a hand to help shrink theseal if the seal installer is difficult to install over the sealrings.

Procedure

Install DT-46620-1 which is part of DT-46620 seal installer with the large chamfer end down over the fluid seal rings and leave DT-46620-1 whichis part of DT-46620 seal installer on the seals for at least 60-seconds.

3

Large Chamfer Up

ProcedureInstall DT-46620-1 which is part of DT-46620 seal installer with the small chamfer end facing down for at least 60-seconds. This will properlysize the bottom seal ring.Leaving DT-46620-1 which is part of DT-46620 seal installer on the fluid seal rings for an extended period of time could cause a fluid leak onthe initial clutch piston circuit until the seal rings warm up and expand to the properdimension.
2–6 Clutch Piston Installation

Case Cover Assembly Assemble Automatic Transmission Unit

2–6 Clutch Piston Installation

Callout

Component Name

1

2–6 Clutch Piston

Procedure

DT-46621 seal protector prevents the piston seal lip from damage over the retaining ring groove during installation.Apply a thin coat of ATF to the O.D. of DT-46621 seal protector to ease the installation of the piston.

Special Tools

DT-46621 Seal Protector

For equivalent regional tools, refer toSpecial Tools.

2

2–6 Clutch Spring Assembly

3

2–6 Clutch Spring Assembly

ProcedureInstall the retaining ring with the opening positioned to the top of the case cover.Place the retainer ring inside DT-46632 spring compressor prior to placing DT-46632 spring compressor onto the spring.

Special Tools

DT-46632 Spring Compressor

For equivalent regional tools, refer toSpecial Tools.

Low and Reverse Clutch Piston Installation

Case Cover Assembly Assemble Automatic Transmission Unit

Low and Reverse Clutch Piston Installation

Callout

Component Name

1

Low and Reverse Clutch Piston Assembly

ProcedureInstall the L/R piston with the air bleed positioned at the alignment feature on thecover, using DT-46628-1 seal protector. This will orient the piston fingers with the openings in the case.DT-46628-1 seal protector prevents the piston seal lip from damage during installation. Apply a thin coat ofATF to the I.D. of DT-46628-1 seal protector to ease the installation of the piston.

Special Tools

DT-46628-1 Piston Seal Protector

For equivalent regional tools, refer toSpecial Tools.

2

Low and Reverse Clutch Spring

3

Low and Reverse Clutch Spring Retaining Ring

Note:Do not align the retainer opening with other retaining ring openings.

Special Tools

DT-46628-2 Spring Compressor

For equivalent regional tools, refer toSpecial Tools.

2-6 and Low-Reverse Piston Function Inspection

Case Cover Assembly Assemble Automatic Transmission Unit

2-6 and Low-Reverse Piston Function Inspection

Callout

Component Name

1

Case Cover Assembly

Note:The fluid seal rings should be in place and not damaged.

2

2-6 Clutch Feed Passage

Caution:Regulate the air pressure to 40-psi maximum. Highpressure could cause the piston to over travel and damage thepiston seals.

Procedure

Apply shop air to the 2-6 clutch feed. Observe the 2-6 piston movement.

Note:Minimal piston movement and excessive air leaking could indicate damage to the 2-6piston seals or improper assembly.

3

Low and Reverse Clutch Feed Passage

Caution:Regulate the air pressure to 40-psi maximum. Highpressure could cause the piston to over travel and damage thepiston seals.

Procedure

Apply shop air to the Low and Reverse clutch feed. Observe the Low and Reverse pistonmovement.

Note:Minimal piston movement and excessive air leaking could indicate damage to the Lowand Reverse piston seals or improper assembly.

Input Speed Sensor Installation

Case Cover Assembly Assemble Automatic Transmission Unit

Input Speed Sensor Installation

Callout

Component Name

1

Input Speed Sensor Seal

2

A/Trans Input Speed Sensor Assembly

3

A/Trans Input Speed Sensor Bolt-M6-x-25

Caution:Refer toFastener Caution.

Procedure

Apply threadlocker or equivalent to the input speed sensor bolt. Refer toAdhesives, Fluids, Lubricants, and Sealers.

Note:The seal is coated with a dry lubricant. If the coating is missing, lubricate theseal with automatic transmission fluid prior to installation.

Tighten

9-Y (7-lb-ft)

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