D6N Track-Type Tractor Machine Systems Caterpillar

Disassembly Procedure

Start By:

1. Remove the pilot control valve. Refer to Disassembly and Assembly, "Pilot Control Valve - Remove".

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Illustration 1	g01058432

1. Remove set screws (1) and remove electronic control group (2).
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   Illustration 2	g01058547

2. Remove bolts (3). Remove retainer (4) and boot (5).
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   Illustration 3	g01058582

3. Remove bolts (6) and bracket (7). Remove bolts (8) and lever assembly (9).
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   Illustration 4	g01058619

   Note: Note the orientation of coil assembly (12) for installation purposes. Coil assembly (12) must be installed in the same location during the assembly procedure.

   Note: Note the orientation of plate (11A) for assembly purposes. Plate (11A) must be installed in the same orientation in order to properly install coil assembly (12).

4. Reposition coil assembly (12) in order to remove two plates (11) and plate (11A).

5. Remove plug assembly (13) and plate assembly (10).
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   Illustration 5	g01058742

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   Illustration 6	g01058783

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   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.

6. Remove plugs (14) and the O-ring seals. Remove plugs (15) and the O-ring seals.

7. Remove screen assembly (16).
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   Illustration 7	g01058785

   Note: Note the orientation of cartridge assemblies (17) for assembly purposes. Each cartridge assembly must be installed in the original location.

8. Remove cartridge assembly (17).

9. Perform the following procedure in order to disassemble cartridge assembly (17):
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   Illustration 8	g01058800

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   Illustration 9	g01058894

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   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.

   1. Remove O-ring seals (19).

   2. Use Tooling (A) to remove retaining ring (20). Remove retainer (18) and spring (21).

   3. Remove adapter (22).
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      Illustration 10	g01058908

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      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.

   4. Remove ball (23) from adapter (22).

   5. Remove spool (24) and spring (25) from cage (26).
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      Illustration 11	g01058914

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      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.

   6. Remove stop (31) and O-ring seal (30) from cage (26).

   7. Remove retainers (27), spring (28), and orifice (29) from spool (24).

10. Repeat Step 8 through Step 9.g for remaining cartridge assemblies (17).