TM 5-4310-393-14
4-30.2.
Installation or Reinstallation.
1.
The new component or cleaned pipe shall be wrapped or double bagged. If not, the item shall be returned
for cleaning.
2. The component or piping shall be removed from bagging and shall be inspected for damage at the mating
surfaces, threads, or connecting surfaces and any primary surface. Inspect for dust or minor particle contamination, and
remove with a lint-free rag 3 Mating components and pipes shall have protection materials or plugs removed.
4.
Mating surfaces, preformed packings and threads shall be lightly coated with an approved lubricant.
Threaded surfaces must be coated to prevent galling of threads at assembly.
A pressure test shall be performed to verify that there are no leaks and that the correct
fittings have been installed in the system
4-31.
Pre-Cleaning of Components or Piping.
Upon receipt of new components not cleaned or components or piping removed from the system for cleaning, the item
shall be pre-cleaned. Doing this shall prepare the component for final cleaning. Pre-cleaning will be accomplished in an
area separate from the clean area This precleaning will include but is not limited to the following'
1.
All wrapping shall be removed.
2.
Loose paint, rust, brackets, panels, tags, supports, and other such items shall be removed.
3.
If hydrocarbons and other contaminants are known to have been introduced into the component or piping, a
through degreasing procedure shall be initiated
4. Visually inspect the pre-cleaned articles under bright light to ensure that all gross contamination has been
removed.
5.
Bag all components and ends of pipes with plastic to await cleaning.
4-32.
Cleaning Method - Non-Ionic Detergent.
This method outlines the cleaning procedures for oil-free cleaning of metallic/non-metallic components or assemblies
using non-ionic detergent This procedure is only to be used if there is no equipment available to conduct the TSP cleaning
method.
4-32.1. Cleaning Components or Assemblies (Excluding Hose Assemblies)
CAUTION
Chemical protective gloves should be worn to prevent skin irritation from
detergent and hot water.
a. Disassemble components down to the smallest parts Separate soft goods and clean as specified in
paragraph 4-34,
b. Clean each component by scrubbing with non-ionic detergent solution 1/2 teaspoon (2.4 ml) detergent to 1
gallon (3 81) water using a nylon bristle brush and clean cloths.
c.
Rinse with distilled water at 125 degrees F (54 degrees C) until effluent shows no visible signs of detergent
d. Collect some of the water rinsed over the items, in a flask that can be fitted with a rubber stopper. Shake
the flask for a few seconds and if any bubbles form and remain on the surface of the water In the flask, continue to rinse
item until further shake tests have no bubbles forming and remaining on the surface of the water.
e.
Purge with dry, oil-free nitrogen until visually dry, or allow to air dry. Date and sign a record containing the
identification of the parts cleaned and the results of the shake test.
f.
Reassemble Items in reverse order of disassembly
g.
Double bag all components in plastic and close securely.
4-37
