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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 performing maintenance. |
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| Illustration 1 | g00484291 |
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Location of the air dryer | |
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| Illustration 2 | g00689356 |
| (1) Air dryer | |
Air dryer (1) is located in front of the front wheel on the left side of the machine.
When the desiccant cartridge in air dryer (1) fails to absorb water, the desiccant cartridge must be rebuilt or the desiccant cartridge must be replaced.
Check for moisture in the air reservoirs.
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.
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.