ARMY TM 9-2815-259-24
AIR FORCE TO 38G1-125-2
MARINE CORPS 09249A/09246A-24
If diesel or JP fuel is injected into skin, seek medical attention
immediately. Failure to comply can result in serious injury.
3.12.1. BLEEDING FUEL SYSTEM.
Any time fuel system has been opened up for service (lines disconnected or filter removed), it will be
necessary to bleed air from system. The fuel system can be bled at one of several locations.
The top panel may have to be removed to access fuel lines.
b. Bleed at Fuel Filter.
Diesel and JP fuels are flammable and toxic to eyes, skin, and
respiratory tract. Skin and eye protection required. Avoid
repeated/prolonged contact. Provide adequate ventilation. Failure to
comply could result in serious injury or death.
Catch fuel in suitable container.
(1) Open air bleed vent screw (14, Figure 3-15) two full turns.
(2) Pump primer lever (6, Figure 3-16) on fuel supply pump until a noticeable amount of fuel and
air comes out of air bleed vent screw (14, Figure 3-15) opening. Continue pumping primer lever
and close air bleed vent screw when fuel starts to flow out air bleed vent screw opening and is
free of air bubbles.
(3) Pump primer lever (6, Figure 3-16) several times until resistance is felt. Continue pumping
primer lever and open air bleed vent screw (14, Figure 3-15) again momentarily.
(4) Close air bleed vent screw (14, Figure 3-15) and pump primer lever (6, Figure 3-16) several
times until resistance is felt again. Push primer lever downward and release.