ELECTROHYDRAULIC Control Unit: Assembly

NOTE: Pay great attention to cleanliness for all work on the shift plate. Fluffy cloths must not be used. Leather cloths are particularly good. After dismantling, all parts must be washed and blown out with compressed-air, noting that parts may be blown away.

Fig 1: Pressure Feed Valve Location

Courtesy of DAIMLERCHRYSLER CORP.

1 - PRESSURE FEED VALVE

1. Install the pressure supply valve (1) into the valve body. See Fig 1.

   NAG1 VALVE BODY SPRING DIMENSION
   VALVE	FREE LENGTH	TOTAL COILS
   2-3 Holding	18.8 -19.6 mm (0.74 - 0.77 in.)	12
   T/C Clutch Damper	37.5 - 38.5 mm (1.48 - 1.51 in.)	19.5
   1-2 / 4-5 Overlap	20.95 - 21.65 mm (0.82 - 0.85 In.)	14.5
   Shift Pressure Regulator	22.4 - 23.6 mm (0.88 - 0.93 in.)	14.5
   Control Valve Pressure Regulator	79.2 - 82.4 mm (3.12 - 3.24 in.)	29
   Shift Solenoid Pressure Regulator	32.6 - 34.4 mm (1.28 - 1.35 in.)	15.5
   T/C Clutch Regulator	22.8 - 23.6 mm (0.90 - 0.93 in.)	18.5
   B2 Shift Valve	25.8 - 27.0 mm (1.01 - 1.06 in.)	16.5
   3-4 Holding, 1-2 / 4-5 Holding, 1-2 / 4-5 Shift Pressure	21.1 - 22.5 mm (0.83 - 0.88)	14
   3-4 Command, 3-4 Shift Pressure, 1-2 / 4-5 Command, 2-3 Shift Pressure, 2-3 Command	23.9 - 25.3 mm (0.94 -1.00 in.)	11.5
   T/C Pressure Limit	64.8 - 68.2 mm (2.55 - 2.68 in.)	24
   2-3 Overlap	16.9 - 18.7 mm (0.66 - 0.74 in.)	13
   Line Pressure Regulator	43.8 - 46.2 mm (1.72 - 1.82 in.)	13.5

   Fig 2: Valve Body Components

   Courtesy of DAIMLERCHRYSLER CORP.

   1 - VALVE BODY	8 - SHIFT VALVE PRESSURE REGULATING VALVE
   2 - 1-2/4-5 COMMAND VALVE	9 - B2 SHIFT VALVE
   3 - 1-2/4-5 HOLDING PRESSURE SHIFT VALVE	10 - 2-3 HOLDING PRESSURE SHIFT VALVE
   4 - 1-2/4-5 SHIFT PRESSURE SHIFT VALVE	11 - 2-3 COMMAND VALVE
   5 - 1-2/4-5 OVERLAP REGULATING VALVE, SLEEVE, AND PISTON	12 - 2-3 SHIFT PRESSURE SHIFT VALVE
   6 - SHIFT PRESSURE REGULATING VALVE	13 - TCC LOCK-UP REGULATING VALVE
   7 - REGULATING VALVE PRESSURE REGULATING VALVE	14 - TCC DAMPER VALVE - if equipped

   NOTE: The sleeves and pistons of the overlap regulating valves must not be mixed up.
2. Install all valves and springs from the valve body (1). See Fig 2. Check all valves for ease of movement and shavings.
3. Install the screws to hold the side covers to the valve body. Tighten the screws to 4 N.m (35 in. lbs.).
   Fig 3: Valve Housing Components

   Courtesy of DAIMLERCHRYSLER CORP.

   1 - 2-3 OVERLAP REGULATING VALVE, SLEEVE, AND PISTON	6 - 3-4 SHIFT PRESSURE SHIFT VALVE
   2 - VALVE HOUSING	7 - 3-4 OVERLAP REGULATING VALVE, SLEEVE, AND PISTON
   3 - SELECTOR VALVE	8 - OPERATING PRESSURE REGULATING VALVE
   4 - 3-4 HOLDING PRESSURE SHIFT VALVE	9 - LUBRICATING PRESSURE REGULATING VALVE
   5 - 3-4 COMMAND VALVE

4. Install all valves and springs into the valve housing (2). See Fig 3. Check all valves for ease of movement and shavings.
5. Install the screws to hold the side covers to the valve housing. Tighten the screws to 4 N.m (35 in. lbs.).
   Fig 4: Check Balls and Strainer Location

   Courtesy of DAIMLERCHRYSLER CORP.

   1 - STEEL CHECK BALLS

   2 - CENTRAL STRAINER

   3 - STEEL CHECK BALLS

   4 - PLASTIC CHECK BALLS

   5 - PLAIN DOWEL PIN

   NOTE: A total of 12 valve balls are located in the valve body, four made from plastic (4) and eight from steel (1, 3).
6. Install all check balls (1, 3, 4) and the central strainer (2). See Fig 4.
   Fig 5: Converter Lock-up Solenoid Valve Strainer Location

   Courtesy of DAIMLERCHRYSLER CORP.

   1 - CONVERTER LOCK-UP SOLENOID STRAINER

7. Install the strainer (1) in the inlet to torque converter lock-up control solenoid valve. See Fig 5.
   Fig 6: Shift Plate Components

   Courtesy of DAIMLERCHRYSLER CORP.

   1 - BOLTS - 29

   2 - VALVE HOUSING

   3 - SEALING PLATE

   4 - VALVE BODY

   5 - LEAF SPRING

8. Position the sealing plate (3) onto the valve body (4). See Fig 6.
9. Install the valve housing (2) onto the valve body (4) and sealing plate (3).
10. Install the shift plate Torx® bolts (1). See Fig 6. Tighten the bolts to 8 N.m (71 in. lbs.).
11. Install leaf spring (5). See Fig 6.
    Fig 7: Solenoid Valve Strainer Locations

    Courtesy of DAIMLERCHRYSLER CORP.

    1 - SOLENOID VALVE STRAINERS

12. Install the strainers (1, 2) for the modulating pressure and shift pressure control solenoid valves into the valve housing. See Fig 7.
    Fig 8: Electrical Unit Components

    Courtesy of DAIMLERCHRYSLER CORP.

    1 - SOLENOID CAP

    2 - SOLENOID CAP

    3 - BOLT - M6X32

    4 - BOLT - M6X30

    5 - LEAF SPRING

    6 - MODULATING PRESSURE REGULATING SOLENOID VALVE

    7 - SHIFT PRESSURE REGULATING SOLENOID

    8 - 3-4 SHIFT SOLENOID

    9 - TORQUE CONVERTER LOCK-UP SOLENOID

    10 - 1-2/4-5 SHIFT SOLENOID

    11 - 2-3 SHIFT SOLENOID

    12 - ELECTRICHYDRAULIC CONTROL MODULE

    13 - SHIFT PLATE

13. Install the electrohydraulic control module (12) onto the shift plate (13). See Fig 8.
14. Bend the retaining lug on stiffening rib on transmission oil temperature sensor to retain the electrohydraulic control module.
15. Install the solenoid valves (6 - 11) into shift plate (13).
    NOTE: Check O-rings on solenoid valves for damage and replace if necessary.
16. Install the leaf springs (5).
17. Install the Torx® socket bolts (3, 4). See Fig 8. Tighten the bolts to 8 N.m (71 in. lbs.).
    NOTE: Pay attention to the different lengths of the Torx® socket bolts.
18. Install the solenoid caps (1, 2).
19. Install the electrohydraulic unit into the vehicle.