Description, Component locator – Bush Hog Utility Vehicles User Manual
Page 4
BUSH HOG
®
UTILITY VEHICLE WORKSHOP MANUAL – SECTION 4: FUEL SYSTEM
4-4
NOTICE: The engine manufacturer has included the engine carburetors, fuel pump and components in
their service manual. See the manufacturer’s manual for fuel system diagnostics and repair.
The machine uses a 7-gallon composite type fuel tank to storage fuel for
the engine. The fuel tank is mounted underneath the operator’s seat.
CAUTION
Use only approved fuel hose for routing fuel to the
engine. Rubber hoses not intended for fuel can
deteriorate quickly causing leaks and contamination of
the engine fuel system.
A fuel hose is connected between the fuel tank outlet and an inline
fuel filter. The filter is connected to the carburetor with a fuel hose.
The filter must be changed on a regular basis to prevent
contamination or plugging of the fuel system. See the operator’s
manual for filter replacement schedules.
A dual element air cleaner is mounted on the right side of the
machine below the operator’s seat. The outer element prevents dust,
dirt, and contaminates from entering the engine fuel system. The
inner element acts as a safety filter to prevent minute particles from
entering the fuel system.
During engine operation a cyclonic type action takes place in the air
cleaner housing forcing contaminates away from the elements and
into a rubber flapper valve mounted on the down side of the cleaner
assembly. This valve automatically dumps contaminates during
operation. The flapper valve should be inspected regularly and
cleaned or replaced as necessary.
A float type fuel level sending device is mounted in the fuel tank.
The sender is a variable resistor that changes value as the float falls
or rises and transmits a regulated ground to the fuel gauge. The fuel
gauge has constant 12DC volts of switched power and is regulated
by the application of the ground from the sending unit.
A throttle pedal mounted underneath the dashboard on the left side of
the machine allows the operator to control engine fuel supply for travel
speeds. A throttle cable connects the pedal to the carburetor linkage.