TM 9-2320-209-20-3-3 18-41. WATER SEGREGATOR FILTER ELEMENT REMOVAL AND REPLACEMENT (TRUCK M49A1C). TOOLS: Open end wrench set, pn GGG-W-636 10-inch pipe wrench Torque wrench, 25-pound foot capacity element gasket segregator and plate gasket segregator output tube gasket segregator input tube gasket SUPPLIES: Filter element Filter element performed packing Filter Water Water Water Solvent, dry cleaning, type II (SD-2). Fed. Spec P-D-680 5-gallon open top container PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. 18-198