Air Dryer - Check
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The air lines to and from the air dryer must be at atmospheric pressure. If the air lines are not at atmospheric pressure, personal injury could result. Release the air pressure from the air system completely before preforming maintenance. |
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| Illustration 1 | g00315983 |
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| Illustration 2 | g00283585 |
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| Illustration 3 | g00283696 |
- Open the drain valves for the air tanks.
- Check for moisture in the air tanks. Close the drain valves for the air tanks.
- If there is moisture in the air tanks, replace the desiccant cartridge or rebuild the desiccant cartridge. Consult your Caterpillar dealer for information about replacing the desiccant cartridge and for instructions for rebuilding the desiccant cartridge.
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| Illustration 4 | g00351632 |
Note: Small amounts of moisture may be in the system due to condensation in the system. Moisture may also be in the system if an air dryer is installed on a machine that has been operating without an air dryer. Several weeks may be required in order to completely dry the system.
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