Remove the RO elements from the vessel

ARMY TM 10-4610-309-14

MARINE CORPS TM 10802A-14/1

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TACTICAL WATER PURIFICATION SYSTEM (TWPS)

OPERATOR MAINTENANCE PROCEDURES

REVERSE OSMOSIS SYSTEM

NOTE

If RO simulators are still inside the RO vessels rather than RO elements, clean off

any excess lubricant inside the vessels, then pull the simulators out of the vessel

from the end closest to the operator station (see WP 0036).

4. Remove the RO elements from the vessel (see Figure 6).

WARNING

Damage or scratches deeper than the paint can result in failure of the vessel wall

during operation. Do not scratch or damage the vessel bore when removing or

installing elements. Failure to observe this warning can result in injury or death or

damage to equipment from catastrophic failure of the vessel under high pressure

during operation.

a. Remove the thrust ring from the downstream end of the vessel.

NOTE

There is no thrust ring at the upstream end of the RO vessels.

b. Remove the adapters from the elements at both ends of the vessel.

c. Clean off any excess lubricant from the inside of the vessel before removing the

elements.

d. Insert the element pusher into the upstream end of the vessel and push the elements out

of the vessel in the direction of feed flow and out the downstream end of the vessel.

CAUTION

Support the element as it is pushed out of the vessel. Do not allow the element

weight to be supported by the inter-connector. Failure to observe this caution can

result in damage to the inter-connector or the outer surface of the elements.

Support the first element as it comes out of the vessel.

Disconnect the first element from the element inter-connector.

Remove the inter-connector from the second element.

Push the second element out of the downstream end of the vessel using the element

pusher.

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