TM 5-4220-231-14&P (3)  Wipe   all  of the   external   surfaces of  components and   piping  with  detergent to  remove   grease or  dirt (4)   All  personnel shall have clean hands. (5)   All  tools used in  the removal must be   clean and grease-free. (6)   Remove component or   piping. (7)   Immediately bag    or   seal all  exposed ends of   system with    plastic. b. 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   lint-free rag. (3)   Mating    components and pipe    shall have protection materials or   plugs removed. (4)    Mating surfaces, O-rings and threads shall be    coated lightly   with    an    approved lubricant. Threaded surfaces must be   coated to   prevent galling of  threads at   assembly. (5)   A   pressure test shall be    performed to   verify    there are not    leaks and the correct fittings have been installed in  the    system. 3-26    Pre-cleaning of  Components or  Piping. Upon    receipt of   new   components not  cleaned or   components and pipe    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. The pre-cleaning will  include but   is   not   limited    to   the    following: a. All  wrapping shall be   removed. b. Loose paint, rust,    brackets, panels, tags, supports, and other items shall be   removed. c. If  hydrocarbons and/or other contaminants are known to   have been introduced into   the component or piping,    a  thorough degreasing procedure shall be   initiated. Trisodium phosphate (TSP) or  non-ionic detergent (NID) may be   used. d. Visually inspect the pre-cleaned articles under a   bright    light   to   ensure that all   gross contamination has been removed. e. Bag   all   components and ends of   pipe    with   plastic to   await cleaning. 3-27    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. a. Cleaning Components or   Assemblies (excluding hose assemblies). 3-42