Section 4
Low Pressure Water System
20479275
9-2010/Rev 02
4-3
Filter Assembly and Strainer Maintenance
The life of the filter element is directly related to the quality of the inlet water. The condition of
the filter element can be monitored by observing the Booster Pressure Gauge on the front of the
machine. Document the pressure reading when the filter element is new. The element should be
replaced when the pressure drops to 15 psi (1 bar) below the original value. When the filter
element is replaced, the strainer should also be cleaned.
The following procedure is used to replace the filter element and clean the strainer.
Figure 4-2: Filter Element
1. Turn the cutting water supply off.
2. Press the red bleed valve on the filter head to release any pressure trapped inside the
housing.
3. Use a filter wrench to unscrew the housing and remove the old element.
4. Install the new element. Apply FML-2 grease to the o-ring in the filter housing and use
the filter wrench to replace the housing.
NOTE
To ensure proper alignment of the element, fill the filter housing approximately 1/4
to 1/3 full of water. When the element is installed it will float, allowing it to be
centered while the housing is installed on the filter head.
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