G3516 Petroleum Engines Caterpillar


Accumulator - Disassemble

Usage:

G3516 AL7

Disassembly Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
5P-3520  Spanner Wrench 

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

Dry nitrogen is the only gas approved for use in the accumulators. The charging of oxygen gas in an accumulator will cause an explosion. An explosion can be eliminated by using nitrogen gas cylinders with standard CGA (Compressed Gas Association, Inc.) No. 580 connectors. When nitrogen gas is ordered, make sure to order the cylinders with CGA No. 580 connectors.

Do not rely on color codes or other methods of identification to tell the difference between nitrogen and oxygen cylinders. In any application, never use an adapter to connect your nitrogen charging group to a valve outlet used on both nitrogen, oxygen, or other gas cylinders. BE SURE YOU USE DRY NITROGEN (99.8% purity).


  1. Remove gas pressure from the accumulator assembly. Refer to Operation and Maintenance Manual, "Accumulator - Check".


    Illustration 1g01796533

  2. Remove bolt (2), the washer, and the spacer.

  3. Open strap assembly (3). Remove bolts (5) and the washers.

  4. Remove accumulator assembly (1) from plate (4).

  5. Use Tooling (A) in order to replace the seals in accumulator assembly (1).


    Illustration 2g01796534

  6. Remove elbow (6) and O-ring seal (7).

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

    Personal injury can result from parts and/or covers under spring pressure.

    Spring force will be released when covers are removed.

    Be prepared to hold spring loaded covers as the bolts are loosened.


  7. Remove plug (8) and O-ring seal (11).

  8. Remove spring (9) and ball (10) from adapter (12).

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