TM 10-4610-232-12
3-28. REPLACE RO ELEMENTS. This task covers:
a. Removal.
b. Repair.
c. Installation.
Tools, see Appx C, Sec Ill, Ref Code (No):
Equipment Condition:
Flat Tipped Screwdriver (51)
ROWPU shutdown.
7/8 in. Socket (54)
Water drained from high pressure system.
Wrench, Hex Key 1/4 in. (59)
9/16 in. Open End Wrench (60)
Personnel Required: 2
3/8 in. Ratchet Wrench (61)
General Safety Instructions:
RO Element Pusher (Appx B, Sec Ill,
Ref Code No. 14)
WARNING
Materials/Parts:
Observe specific Warnings and Cautions in the text.
RO Elements (Appx E, Sec II, Item 36)
Glycerin (Appx E, Sec II, Item 16)
Suitable Tags
Gloves (Appx E, Sec II, Item 43)
Wood Block
WARNING
Before working on the RO elements, make certain that in-line pressure is relieved
and drain valves (3 thru 9, Figure 3-12) are opened to drain the RO vessels and piping.
Failure to do so could result in injury or death.
REMOVAL.
a. Make certain the valves in Figure 3-12 are in the following positions:
(1)
(2)
(3)
(4)
System pressure control valve (1) — open.
Product vent valve (2) — open.
Product drain valves (3 thru 6) — open.
Waste drain valves (7 thru 9) — open.
3-53
