(3) Fuel line fittings.
(a) Tube coupling
Fittings are made of soft brass. They can be
stripped very easily if overtightened. Tighten
fittings only enough to stop fuel leaking.
Tube coupling joining fuel supply tube from
fuel tank and fuel supply tube to filter on trucks
with LD-465 engine is used for this typical pro-
Screw tube nuts ( 1 and 2) into coupling ( 3).
Using 7/8-inch open end wrench, hold coupling ( 3). Using 3/4-inch combina-
tion box and open end box wrench, tighten two tube nuts ( 1 and 2).
Follow-on Maintenance Action Required:
Start engine. Refer to TM 9-2320-209-10.
2. Check that fuel lines and fittings have no leaks.
3. Stop engine. Refer to TM 9-2320-209-10.
END OF TASK