Cub Cadet 8404 - Manual (Page 37)

ENGINE SYSTEM
2-15 D615-W02 May-2003
615W229A
615W228A
(1) Fuel Tank (5) Injection Nozzle
(2) Fuel Filter (6) Fuel Overflow Pipe
(3) Injection Pump (7) Fuel Feed Pump
(4) Injection Pipe
2.4 FUEL SYSTEM
A. FLOW OF FUEL
The fuel is fed from the fuel tank (1) through the fuel
feed pump (7) to the injection pump (3) by the fuel filter
(2). The injection pump force-feds the fuel through the
injection nozzles (5), which inject the fuel into the cylin-
ders for combustion. The excessive fuel from the injec-
tion pump to the injection nozzles (5), which inject the
fuel into the cylinders for combustion. The excessive
fuel from the injection pump to the injection nozzles is
collected in the fuel overflow pipes (6) and returns to
the fuel tank.
B. FUEL FILTER
The fuel filter removes dirt and water with its fine filter
paper, which collects particles of 90 microns (0.0034 in.)
at 20 kPa (0.2 kgf/cm², 3 psi). The fuel from the fuel
feed pump is filtered by the filter element (6), while
flowing through the filter body (3) has an air vent (2) to
return the air tin the fuel to the fuel tank to prevent the
engine from stopping or running irregularly.
(a) To Fuel Tank
(b) From Fuel Feed Pump
(c) To Injection Pump
(1) Cock (4) Retainer Ring
(2) Air Vent (5) Pot
(3) Filter Body (6) Filter Element