725, 730 and 730 EJECTOR Articulated Trucks Power Train Caterpillar


Bypass Valve - Remove and Install

Usage:

725 AFX

Removal Procedure

Note: Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.


NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.

Dispose of all fluids according to local regulations and mandates.



NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 1g00765778

  1. Disconnect harness assembly (1) from bypass valve (4).

  2. Remove bolts (3) and the bypass valve (4) from the torque converter.

  3. Remove O-ring seal (2) (not shown) from bypass valve (4).

Installation Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
1U-6396  O-Ring Assembly Compound 

Note: Cleanliness is an important factor. Before the installation procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

Note: O-ring seals, gaskets, and seals should always be replaced. A used O-ring seal may not have the same sealing properties as a new O-ring seal. Use Tooling (A) during the assembly procedure.



    Illustration 2g00765778

  1. Install O-ring seal (2) (not shown) on bypass valve (4).

  2. Install bypass valve (4) and bolts (3).

  3. Tighten bolts (3) to a torque of 28 ± 7 N·m (21 ± 5 lb ft).

  4. Connect the harness assembly (1) to the bypass valve.

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