a. Close cartridge filter block valve (2).
b. Open cartridge drain valve (3) and filter vent (4).
Wait until filter has fully drained before removing nut and washer (5).
c. Loosen clamp (6) using ratchet wrench. Remove clamp (6), cover (7) and gasket (8). Use crescent wrench to
remove nut and washer (5). Remove plate (9), retainer (10), 10 spring and seal assemblies (11), and 10 filter elements
(12) from filter housing (13). Discard filter elements.
Check gasket (8) for cuts and other damage, Check gasket seating area for sand or other debris.
R E P A I R .
a. Replace gasket (8) if cut or damaged.
b. Install 10 new elements (12).
c. Clean gasket sealing areas.
Install 10 spring and seal assemblies(11), retainer (10), and plate (9).
Install nut and washer (5) and tighter, leaving approximately 1 inch between plate (9) and retainer (10).
Install gasket (8), cover (7), and clamp (6). Tighten with ratchet wrench.
Close drain (3) and vent (4).
3-21. REPAIR WATER PURIFICATION FILL AND DRAIN HOSES, REPAIR CLEAN RETURN LINE, AND
HEATER JUMPER HOSE. This task covers repair of hoses by replacement of gaskets as described in paragraph 3-8.