785D OEM Off-Highway Truck Machine Systems Caterpillar


Steering Accumulator - Disassemble

Usage:

785D DMC

Disassembly Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
175-5507  Nitrogen Charging Group 

Start By:

  1. Remove the steering accumulator. Refer to Disassembly and Assembly, "Steering Accumulator - Remove".


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


------ WARNING! ------

Hydraulic accumulator contains gas and oil under high pressure. Improper removal or repair procedures could cause severe injury. To remove or repair, instructions in the service manual must be followed. Special equipment is required for testing and charging.


------ WARNING! ------

Personal injury can result from the sudden release of high pressure oil.

Be sure the engine has been shut off for a minimum of five minutes to ensure that the accumulator pressure is zero.

The accumulator is filled with dry nitrogen. Do not loosen or remove the valve or the cap from the top of the accumulator.




    Illustration 1g01586013

  1. Before the disassembly procedure, use Tooling (A) in order to verify that accumulator (1) is completely discharged.

  2. Remove plug (2). Remove nut (3). Remove spacer (4).


    Illustration 2g01586015

  3. Push fitting (5) into accumulator shell (6).


    Illustration 3g01183808

  4. Remove washer (7). Remove O-ring seal (8). Remove ring (9).

    .



    Illustration 4g01183810

  5. Fold ring (10) in half in order to remove ring (10) from accumulator shell (6).


    Illustration 5g01183811

  6. Remove fitting (5) from accumulator shell (6).


    Illustration 6g01183817

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.


  7. Remove nut (11). Remove sleeve (12). Remove spring (13). Remove poppet (14) from fitting (5).


    Illustration 7g01183823

  8. Remove nut (15).

  9. Remove seal (16).

  10. Remove valve assembly (17).

  11. Remove nut (18).


    Illustration 8g01183832

  12. Remove bladder (19) from accumulator shell (6).

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