4-19.
TM 3-4230-218-12&P
a.
Descaling Procedure - Continued.
(17) Shut down unit and inspect for scale in outlet and branch
hose/strainer.
(18) If descaling is not adequate, repeat steps (12) through (17).
(19) When entire descaling procedure is completed, slowly add sodi-
um carbonate solution to descaling solution.
Descaling solution
will froth and foam as sodium carbonate solution is added.
When solution does not foam or froth, and has turned yellow, it
is completely neutralized and may be disposed of in accordance
with local SOP.
4-20.
BURNER FUEL SYSTEM.
This task consists of:
Repair
INITIAL SETUP :
Tools Required:
- — — — —
Tool Kit from Accessory Kit
Materials Required:
Brush, Varnish (item 1, Appendix E)
Cleaning Solvent (item 3, Appendix E)
Strap, Tiedown (item 10, Appendix E)
Equipment Conditions:
Engine and heat exchanger shutdown and cool.
NOTE
Fuel hoses are easily damaged during removal.
inspected during reassembly. Replace all damaged
a.
Repair.
All hoses must be carefully
hoses.
(1) Remove burner fuel can lid assembly (3) from fuel can or tool
box, as required.
(2) Clean all metal parts of lid assembly (3) with dry cleaning
solvent (item 3, Appendix E).
4-40
