TM 55-2840-231-23
6-4. Fuel System Tubes - Removal, Cleaning, and Installation.
INITIAL SETUP
Applicable Configuration
All
Special Tools
Magnifying Glass, 10x (Appendix C)
Consumable Materials
Drycleaning Solvent (item 1, Appendix D)
ENGINE/
REMOVAL
Fuel System Tubes
Observe the following precautions when
Remove and observe
removing fuel system tubes:
precautions.
a. When loosening a coupling nut, always
use a backup wrench on the mating fitting to
prevent the fitting from turning.
b. Always use the proper size wrench to
prevent rounding off the hex corners.
c. Attach the wrench to the fitting or
coupling nut in a manner that will prevent
crushing of the fitting or coupling nut.
d. Never use a pipe wrench, pliers, or vise
grips on a coupling nut or fitting.
CLEANING
Fuel System Tubes
Drycleaning solvent, P-D-680,
used to clean parts is potentially
dangerous to personnel and
property. Avoid repeated and
prolonged skin contact. Avoid
prolonged or repeated breathing
of vapors. Do not use near open
flame or excessive heat. Flash
point of solvent is 100oF - 138oF
(38oC - 59°C).
Use drycleaning solvent (item 1, Appendix
Flush tubes with solvent
D).
and blow dry.
Change 11
6 -
3
