Mitsubishi diesel engines, Service Manual, Page: 196 / 219

ENGINE - INSPECTION / ADJUSTMENT, RUNNING-IN TRIAL AND PERFORMANCE TEST
8 - 7
1.7 Bleeding the fuel filter of air
(1) Fuel filter with selector cock (push-button type)
(a) Open the cock lever and press the push button
several times. Fuel will automatically come
down into the filter. With the engine equipped
with the fuel pump, turning the key ON will
cause fuel to enter into the filter.
(b) Repeatedly press the button until fuel with air
bubbles no longer comes out.
(c)
Air trapped in the fuel injection pipe and the
nozzle will be bled automatically by cranking
the engine.
(2) Fuel filter (cartridge type)
(a) With the engine equipped with the fuel pump,
turn the key ON. Fuel will automatically come
down into the filter.
(b)
Loosen the air bleeder screw (1). When fuel
with air bubbles no longer comes out, tighten
the screw.
(c) Loosen the air bleeder screw (2). When fuel
with air bubbles no longer comes out, tighten
the screw.
Bleeding the fuel filter of air (push button type)
Bleeding the fuel filter of air (cartridge type)
Cock lever
(open)
Press the push
button several
times
Bleed air with
screw (1) first,
then with screw (2)
Air bleeder screw