24 1. Throughout the entire procedure, AVOID LETTING SCREEN COME IN CONTACT WITH YOUR BARE SKIN, particularly after the cartridge has been cleaned. Hold the cartridge by the end-caps. If necessary to handle the screen during removal or installation, use a clean, dry, nonabrasive material, such as a poly-bag from one of the coalescers, between your hand and the screen. 2. After removing the cartridge from the vessel, submerge it in clean fuel and gently scrub the entire screen surface with a soft bristle brush or a lint free cloth. 3. SURFACE INSPECTION. Holding the cartridge by the endcaps, visually inspect the entire surface of the screen for any nicks or cuts. If there are any visible flaws, they should be patched (see Step 6). 4.WATER TEST. Be sure that the separator is fuelwetted before performing this test. Hold the cartridge by the end-cap at an angle, and gradually pour water over the entire screen surface. Do not spray the water and do not let it fall more than a distance of three inches before contacting the screen. 5. The water will bead and roll off the surface of properly functioning separators (as it would on a freshly-waxed car). If this is the case, the separator has passed the Water Test and can be reused. 6. If any portion of the Teflon coated screen is wetted by the water (the water will seep into the pores of the screen; this is very obvious to the eye), the cartridge has failed the Water Test. The wetted area must be cleaned again (see Step 7), and the recleaned cartridge should pass the Water Test before it is reinstalled. NOTE: The separator in the photo above has been purposely disarmed to show a water-wetted surface. ® Teflon is a registered trademark of E.I. du Pont de Nemours & Co., Inc. DO NOT THROW TEFLON COATED SCREEN SEPARATOR CARTRIDGES AWAY WHEN CHANGING COALESCERS. These separators are designed to eliminate the costly practice of replacing paper separators. It is recommended, however, that the separators be inspected, tested and cleaned at every coalescer change to assure prolonged, effective separation life. The procedure for this is described below: Maintenance Instructions Teflon® Coated Screen Separator Cartridges
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