WABCO System Saver 1200 Plus
Note: Desiccant change intervals may vary from vehicle to vehicle. Typical desiccant cartridge life is three years. However, if experience has shown that extended or shortened life has resulted on a particular installation, then the interval can be increased or decreased accordingly.
Notice: The WABCO System Saver air dryers can use either a standard or oil coalescing desiccant cartridge. When replacing the desiccant cartridge, it is very important to use the same type of cartridge that was originally installed on the dryer. Oil coalescing cartridges can be used in any application, but require more frequent service intervals (every 1 to 2 years instead of every 2 to 3 years for a standard cartridge). Do not replace an oil coalescing cartridge with a standard cartridge, as this may result in contamination and malfunctioning of downstream air system components.
- Drain the air system.
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Seal
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O-Ring
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Air Dryer Base
Fig. 1, Desiccant Cartridge Replacement
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- Using a strap wrench, turn the desiccant cartridge counterclockwise and remove it.
- Remove and discard the O-ring.
- Clean the top surface of the dryer base with a commercial cleaning solvent.
- Using a multipurpose, high-temperature grease that resists water, steam, and alkali, lightly coat the surfaces of the new O-ring and the dryer base. Install the O-ring.
- Thread the desiccant cartridge onto the dryer base (turn clockwise). When the seal contacts the base, tighten the cartridge one complete turn more. Do not overtighten.
Important: If the air dryer base is damaged, preventing a tight seal, replace the air dryer.