Figure 3-9. Element Replacement
(14) Place 10 washers and nuts onto studs.
65 in. lb (5.4 ft. lb) is maximum torque for end cap nuts. Do not exceed this torque.
(15) Slowly and evenly tighten nuts until handtight (snug). Never turn one nut more than two turns at a time.
Once handtightened, evenly tighten each nut 1/8 turn with wrench.
(16) Reconnect pipes to R.O. vessel (fig. 3-1).
Slide hose clamp (1) over tubing (2). Place tubing (2) and clamp (1) over adapter (13) and tighten
Place bushing (6) back on pipe.
Swing elbow (7) back into place and put bushing (6) over elbow (7).
Put clamp (5) over bushing (6).
Put bolts (4) into clamps (5).
Put nuts (3) on bolts (4) and tighten.
(17) Operate ROWPU (para. 2-25) and observe for leaks.
CHANGING CARTRIDGE FILTER TUBE ELEMENTS. Refer to fig. 3-10.
Description. The cartridge filter contains eight filter tube elements. Cartridge filter tube elements should be
changed when CARTRIDGE FILTER gage differential pressure rises above 20 psid.