785D OEM Off-Highway Truck Power Train Caterpillar


Transmission Hydraulic Control - Install

Usage:

785D DMC

Installation Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
138-7573  Link Bracket 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


Note: Inspect the O-ring seals, the seals, and the gaskets. Replace the O-ring seals, the seals, and the gaskets that are worn or damaged.

Note: Lubricate the O-ring seals lightly with the lubricant that is being sealed.



    Illustration 1g01626198

  1. Use Tooling (A) and a suitable lifting device in order to install control valve (21). The weight of control valve (21) is approximately 64 kg (141 lb).

  2. Remove Tooling (A).


    Illustration 2g01626195

  3. Install bolts (20). Tighten bolts (20) to a torque of 48 ± 4 N·m (35 ± 3 lb ft).


    Illustration 3g01626189

  4. Install O-ring seals (19). Install sleeve (18). Install O-ring seal (17). Repeat this step for the remaining flange (16).


    Illustration 4g01626187

  5. Install flanges (16).


    Illustration 5g01626183

  6. Install coupling assembly (15). Install retaining ring (14).


    Illustration 6g01626178

  7. Install O-ring seals (13) onto sleeve (11). Repeat this step for the remaining sleeves (11).


    Illustration 7g01626148

  8. Install O-ring seals (12). Install sleeves (11).


    Illustration 8g01626144

  9. Install manifold assembly (10). Install bolts (9). Tighten bolts (9) to a torque of 48 ± 4 N·m (35 ± 3 lb ft).


    Illustration 9g01626139

  10. Install cover (8) and the gasket. Install cover (7) and the gasket.


    Illustration 10g01626134

  11. Install guard assembly (6).


    Illustration 11g01626130

  12. Connect harness assembly (5) and install the connecting hardware.


    Illustration 12g01626123

  13. Connect hose assembly (4). Connect harness assembly (3) and install the connecting hardware. Connect hose assembly (2).


    Illustration 13g01626121

  14. Connect hose assemblies (1).

  15. Fill the hydraulic tank. Refer to Operation and Maintenance Manual, "Hoist, Torque Converter and Brake Tank Oil - Change"

End By:

  1. Remove the retaining cable. Refer to Disassembly and Assembly, "Truck Body Retaining Cable - Remove and Install".

  2. Remove the wheel chocks. Refer to Disassembly and Assembly, "Wheel Chock (Front and Rear) - Remove and Install".

Caterpillar Information System:

785D OEM Off-Highway Truck Power Train Transmission Hydraulic Control - Remove
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