ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0070 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
DIRECT SUPPORT MAINTENANCE PROCEDURES
REVERSE OSMOSIS SYSTEM
RO Vessel Replacement:
Parts:
RO Vessel Shell (TM 10-4610-309-24P)
Materials:
Abrasive cloth (WP 0079, Table 1, item 15)
Mild soap solution
Glycerin (WP 0079, Table 1, item 21)
Clean water
Corrosion preventive compound (WP 0079, Table 1, item 17)
Antiseizing tape (WP 0079, Table 1, item 43, 44)
Tools:
Small wire brush
Element pusher (TM 10-4610-309-24P)
Equipment Condition:
TWPS in Short Term Shutdown with Drain Down (WP 0017)
WARNING
High pressure. During operation the RO vessels and RO system may be
pressurized up to 1200 psig. Make sure that the RO system pressure has been
relieved prior to working on any part of the system. Failure to observe this
warning can result in an explosive release of parts that can cause injury or death
to personnel and damage to equipment.
Potential for catastrophic failure. Damage or scratches to the shell of an RO
vessel that are deeper than the paint can result in failure of the vessel wall during
operation. Vessel shells with such damage must be replaced. Failure to observe
this warning can result in catastrophic failure of the vessel during operation and
serious injury or death.
Replace the shell of an RO vessel while keeping all other parts of the RO vessel as follows:
1. Make sure that the RO system is in Short Term Shutdown with Drain Down. Refer to WP 0017.
2. Remove the RO elements from the RO vessels. Refer to WP 0041.
3. Remove the MF assembly. Refer to WP 0069.
WARNING
The RO vessels are heavy. Use an appropriate lifting device to lift and remove the
vessels. Failure to observe this warning may result in back injury.
NOTE
RO vessel #1 cannot be removed unless RO vessel #2 is removed first. RO vessels
2, 3, 4, and 5 can be removed without having to remove any of the other vessels.
0070 00-12
