Prepare water tight, plastic bags large enough to hold an RO element by using heat sealable plastic sheet
and a heat sealer gun.
Move the ROWPU to a heated area and remove the RO elements (para. 3-28).
Prepare a solution of 5 gallons potable water and 1/4 pound of sodium bisulfite.
Place each RO membrane in a bag with about 1/3 gallon of solution.
Seal the bags so they are air tight and store at above freezing temperatures.
Remove the temperature sensitive items (para. 1-11) from the ROWPU and store in above freezing
(7) Attach tags to RO pressure vessels that reads "RO elements have been removed. Reinstall before operating
unit." (8) Move the ROWPU to selected storage site.
4-98. PREPARATION FOR RAIL MOVEMENT.
If, during transport, the ROWPU will be subjected to temperatures below 35°F or above
110°F (20C and 43°C) the temperature sensitive items listed in para. 1-11, equipment
data, must be removed from the ROWPU and shipped in a temperature controlled
environment. RO element removal is covered in para. 3-28. Storage of RO elements is
covered in para. 4-97d.
a. Check that all equipment stowage straps are pulled up tight and all equipment is secure.
b. Check that media filter restraint tumbuckles are secure. Loosen tumbuckles and tighten hand tight Tighten
tumbuckle an additional half turn by tightening each turnbuckle a quarter of a turn at a time.
c. Check that items in storage boxes are securely packed.
d. Use 2 x 4 lumber and wedge it between the van lower rail and the high pressure pump assembly frame.
e. Check that high pressure pump assembly mounting straps are pulled up tightly and that there is no slack in the
Check that trailer/van bolster locks are secure.
g. Check that generator mounting brackets are torqued to 180-200 ft-lbs.
h. Install tie down cables from the generator lifting eyes to the trailer. Size cables for a generator weight of 5,000
Use suitable lumber (2 x 4 and 4 x 4) for bracing and wedge it between the high pressure pump assembly frame
and the trailer bulkhead panel.
Block, brace and tie down the ROWPU trailer assembly on the rail car. Size cables and tie down method for a
40,000 pound assembly.
U.S. GOVERNMENT PRINTING OFFICE:1997-555-121/60002
4-320 Change 8