Fuel System - Cub Cadet 8454 Service Manual

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) thru the fuel
filter (2). The injection pump force-feds the fuel through
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
2
in.) at 20 kPa (0.2 kgf/cm , 3 psi). The fuel from the fuel
feed pump is filtered by the filter element (6), while
flowing through the filter body (3). The air vent (2) re-
turns the air in the fuel to the fuel tank to prevent the
engine from stopping or running irregularly.
D569-W02 May-2003
K&T Saw Shop 606-678-9623 or 606-561-4983
www.mymowerparts.com
(1) Fuel Tank
(2) Fuel Filter
(3) Injection Pump
(4) Injection Pipe
(a) To Fuel Tank
(b) From Fuel Feed Pump
(c) To Injection Pump
(1) Cock
(2) Air Vent
(3) Filter Body
ENGINE
569W227A
(5) Injection Nozzle
(6) Fuel Overflow Pipe
(7) Fuel Feed Pump
569W228A
(4) Retainer Ring
(5) Pot
(6) Filter Element
2-15