TUBE A AIR 4N4349 - Caterpillar

Disassembly Procedure
Start By:
Remove the ejector control valve. Refer to Disassembly and Assembly, "Control Valve (Ejector) - Remove".
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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly procedures on a clean work surface. Keep components covered and protected at all times.
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Remove valve (1) and the O-ring seals.
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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.
Disconnect tube assemblies (4). Remove bolts (3). Remove body (2) .
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Remove O-ring seal (5) and retainer (6) from body (2) .
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Remove spring (8) and retainer (7) .
Repeat Step 1 through Step 4 for the opposite side.
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Remove stem (9) .
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Remove relief valve (10), the O-ring seals, and the backup rings.
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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.
Remove body (11) and the O-ring seals.
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Remove spring (12). Remove valve (13) .