TM 9-2330-267-14&P
4-57. WATER TANK BODY MAINTENANCE (STAINLESS STEEL) (Con’t).
WARNING
NEVER WORK ALONE INSIDE tank assembly. A safety rope must be secured around
chest and under arms of person entering water tank. Opposite end of safety rope
must be held by a person stationed at the manhole opening. This will allow for quick
removal of a person from water tank in the event of accident or personal Injury.
Personnel must wear rubber gloves, canvas sleeves, safety shoes, rubberized apron
or jacket, and protective mask while performing abrasive cleaning operation. A
portable air filter must also be used. Failure to follow this warning may result in injury
to personnel.
An adequate air evacuation system must be used to quickly exhaust fumes from
inside tank assembly. Failure to follow this warning may result in injury to personnel.
Nozzle pressure must not exceed 35 psi (241 kPa); do not hold spray nozzle on any
one area for extended periods of time. Failure to do so may result in tank rupture or
damage and possible Injury to personnel.
3.
Clean all interior surfaces, including baffle plates, corners, seams, drains, and outlets, with sandblast sand to
remove all traces of corrosion and old coatings.
4.
Insert blasting nozzle and hose a long distance into piping to remove all corrosion and scale.
5.
Remove dust, dirt, and blasting material from inside water tank body with vacuum cleaner or other suitable
equipment.
6..
Scrub interior with brush and water and scouring powder solution.
7.
Rinse interior repeatedly with warm water, approximately 120°‘F (49°‘C), to remove soapy solution.
8.
Install drain plug in water tank body.
c.
INSTALLATION
1.
Using suitable lifting device, position water tank body (3) on frame assembly (9).
2.
Install four capscrews (2), new packings (5), mounts (6), and spacer rings (7) on brackets (8) and frame
assembly.
3.
Install plug (4) in water tank body (3).
4.
Install new Iockwire (1) on four capscrews (2).
5.
Remove lifting device from water tank body (3).
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