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Lincoln Navigator: Automatic Transmission - 10-Speed Automatic Transmission – 10R80 / B Clutch. Description and Operation

Lincoln Navigator 2018-2025 Workshop Manual / Automatic Transmission / Automatic Transmission - 10-Speed Automatic Transmission – 10R80 / B Clutch. Description and Operation

Overview

Item Description
1   SSB
2 B clutch control valve
3 B clutch latch valve
4 B clutch apply circuit
5 B clutch piston
6 B clutch assembly
7 One-Way Clutch (OWC)
8 Sun gear No. 1
9 Sun gear No. 2

Sun gear No. 1 is mechanically connected to sun gear No. 2. Sun gear No. 1 is also connected to the B clutch. When the B clutch applies, it holds the sun gear No. 1 and sun gear No. 2 stationary. The One Way Clutch (OWC) also holds the sun gear No. 1 and sun gear No. 2 stationary during acceleration in first and second gear when the shifter is in the D position.

B Clutch Exploded View

Item Description
1 Front support assembly
2 B clutch piston
3 B clutch apply plate
4 B clutch friction plates
5 B clutch separating springs
6 B clutch steel plates
7 B clutch pressure plate
8 One-Way Clutch (OWC)
9 Sun gear No. 1
10 Sun gear No. 2

B Clutch Hydraulic Circuits

Item Description
1 Line pressure
2 Pump output
3 B clutch control valve
4   SSB
5 Control pressure to latch valve
6 B clutch latch valve
7 Apply pressure to mechanical B clutch
8 Mechanical B clutch
9 Elevated exhaust pressure
10 Clutch exhaust

B Clutch Hydraulic Operation

Line pressure is supplied to the B clutch control valve and the B clutch latch valve. As SSB turns on, it moves the control valve allowing regulated line pressure to flow to the B clutch latch valve and then to the mechanical B clutch. When the regulated line pressure in the B clutch control circuit reaches approximately 689 kPa (100 psi), the mechanical B clutch is fully applied. The pressure in the B clutch control circuit moves the B clutch latch valve to the left which allows line pressure to hold the mechanical B clutch applied.

B Clutch Hydraulic Passages



    A Clutch. Description and Operation

    Overview Item Description 1   SSA 2 A clutch control valve 3 A clutch latch valve 4 A clutch apply circuit 5 A clutch piston 6 A clutch assembly 7 Ring gear No...

    D Clutch. Description and Operation

    Overview Item Description 1   SSD 2 D clutch control valve 3 Clutch gain control valve 4 D clutch apply circuit 5 D clutch piston 6 D clutch assembly 7 Planetary carrier ..

    Other information:

    Lincoln Navigator 2018-2025 Workshop Manual: Specifications


    Materials Name Specification Seam SealerTA-2-B, 3M™ 08308, LORD Fusor® 803DTM -  Motorcraft® High Performance Engine RTV SiliconeTA-357 WSE-M4G323-A6  Motorcraft® Silicone Spray LubricantXL-6 ESR-M13P4-A  Permatex® Trim and Weatherstrip Adhesive81850 -  ..

    Lincoln Navigator 2018-2025 Workshop Manual: Intake Air Pressure and Temperature. Diagnosis and Testing


    Diagnostic Trouble Code (DTC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation). Module DTC Description Action PCM P007A:00 Charge Air Cooler Temperature Sensor Circuit (Bank 1): No Sub Type Information GO to Pinpoint..

    Categories

    • Manuals Home
    • 4th Gen Lincoln Navigator Service Manual (2018 - 2025)
    • Rear View Mirrors - System Operation and Component Description. Description and Operation
    • Identification Codes. Description and Operation
    • Front Bumper Cover. Removal and Installation
    • SYNC Module [APIM]. Removal and Installation
    • Body Control Module (BCM). Removal and Installation

    Front Driveshaft. Removal and Installation

    Special Tool(s) / General Equipment

    Crimping Tool

    Materials

    Name Specification Motorcraft® Premium Long-Life Grease
    XG-1-E1 ESA-M1C75-B
     

    Removal

    With the vehicle in NEUTRAL, position the vehicle on a hoist.
    Refer to: Jacking and Lifting (100-02 Jacking and Lifting, Description and Operation).
    Remove the bolts and the transmission shield.

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