DIRECT SUPPORT MAINTENANCE
REVERSE OSMOSIS WATER PURIFICATION UNIT FOR
INLAND AND COASTAL LARGE TUG (LT)
HIGH PRESSURE PUMP, REPAIR
Tools and Special Tools:
Tool Kit, Electrician's (Item 2, Table 2,
Sealing Compound, Loctite 242 (Item 16, Table 1,
Torque Wrench, 0-600 IN-LB (Item 7, Table 2,
Parts Kit, Seal Replacement (Figure 5,
Slide Hammer, Packing Extraction (Item 8, Table
Packing Extraction Socket (Collet) (Item 9, Table
One Watercraft Engineer, 88L
Tool, Seal Installation (Item 10, Table 2,
Gloves, Chemical and Oil Protective (Item 3,
Goggles, Industrial (Item 4, Table 3,
Isopropyl Alcohol (Item 10, Table 1,
Lubricant, Silicone (Item 11, Table 1,
Never reuse locking hardware. Reuse of locking hardware such as lockwashers,
locking nuts, cotter pins, and lock wire can result in undetected loosening of
fastening hardware causing catastrophic component failure resulting in death,
injury, or damage to equipment. In accordance with TB 43-0218, ensure that all
locking hardware is discarded upon removal and replaced with new.
REPLACE HIGH PRESSURE PUMP SEALS, VALVES, AND PLUNGER
Only one valve kit is required to replace all the valves in one pump. The valve O-rings,
valve seats, valves, springs, and cages are all preassembled.
1. Unscrew and remove the six valve plugs (figure 1, item 1).
2. Remove the six valve plug O-rings (figure 1, item 2) and discard.
3. Pull to remove the six valve assemblies (figure 1, item 3) and discard.
4. Remove the six valve spacer O-rings (figure 1, item 4) and discard.