ENG/LIQUID COOLED
7--10
6400IC MM433 (7--99)
FUEL SYSTEM -- LPG
The liquid withdrawal LPG fuel system has up of
five components: the LPG fuel tank, pressure
relief valve, fuel filter lock, vaporizer-regulator,
and the carburetor.
Liquid LPG fuel flows from the LPG tank under its
own pressure, to the pressure relief valve. Usually
this valve is closed, preventing LPG fuel from
escaping into the atmosphere. The valve opens to
relieve pressure if the fuel pressure exceeds
system limits. From the pressure relief valve, the
liquid LPG fuel flows to the fuel filter lock.
The fuel filter lock filters unwanted tank scale and
deposits out of the LPG fuel. The fuel filter lock
also stops the flow of LPG fuel when the engine is
not operating. The LPG is operated with engine
vacuum.
The vaporizer section of the vaporizer-regulator
converts the liquid LPG fuel into a gaseous LPG
fuel. From the vaporizer section, the gaseous
LPG fuel is sent to the primary regulator section
of the vaporizer-regulator. The primary regulator
section reduces the pressure of the LPG fuel. The
secondary regulator section reduces the LPG fuel
pressure to the level required by the carburetor.
From the vaporizer-regulator, the LPG fuel is sent
to the carburetor where it is finally metered into
the air flow sent to the engine combustion
chamber.
Never operate an LPG powered machine if the
LPG fuel system is leaking, or if any component in
the fuel system is malfunctioning. Operating the
machine under either of these conditions may
cause a fire or explosion.
Summary of Contents for 6400IC
Page 1: ...MM433 Rev 02 MM433 Service Manual 6400IC ...
Page 4: ...GENERAL INFORMATION 1 2 6400IC MM433 8 94 ...
Page 28: ...CHASSIS 2 2 6400IC MM433 7 99 ...
Page 50: ...CHASSIS 2 24 6400IC MM433 7 99 ...
Page 52: ...SWEEPING 3 2 6400IC MM433 7 99 ...
Page 122: ...SWEEPING 3 72 6400IC MM433 7 99 ...
Page 124: ...ELECTRICAL 4 2 6400IC MM433 7 99 ...
Page 147: ...ELECTRICAL 4 25 6400IC MM433 12 01 ...
Page 148: ...ELECTRICAL 4 26 6400IC MM433 12 01 ELECTRICAL SCHEMATIC GAS LP LIQUID COOLED 1 2 3 4 5 6 7 ...
Page 150: ...ELECTRICAL 4 28 6400IC MM433 12 01 ELECTRICAL SCHEMATIC DIESEL 2 1 2 ...
Page 151: ...ELECTRICAL 4 29 6400IC MM433 12 01 ELECTRICAL SCHEMATIC DIESEL 1 2 350169 D ...
Page 154: ...ELECTRICAL 4 32 6400IC MM433 12 01 WIRE HARNESS GROUP GAS LP LIQUID COOLED ...
Page 156: ...ELECTRICAL 4 34 6400IC MM433 12 01 WIRE HARNESS GROUP DIESEL ...
Page 160: ...ELECTRICAL 4 38 6400IC MM433 12 01 ...
Page 174: ...ELECTRICAL 4 52 6400IC MM433 7 99 ...
Page 176: ...HYDRAULICS 5 2 6400IC MM433 7 99 ...
Page 258: ...HYDRAULICS 5 84 6400IC MM433 12 01 Fig 1 Hydraulic Schematic Liquid cooled 350156 LIQ ...
Page 259: ...HYDRAULICS 5 85 6400IC MM433 12 01 Fig 1 Hydraulic Schematic Liquid cooled 350156 LIQ ...
Page 260: ...HYDRAULICS 5 86 6400IC MM433 12 01 Fig 2 Hydraulic Schematic Air Cooled ...
Page 261: ...HYDRAULICS 5 87 6400IC MM433 12 01 Fig 2 Hydraulic Schematic Air Cooled 350157 AIR ...
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Page 332: ...ENG AIR COOLED 6 2 6400IC MM433 7 99 ...
Page 356: ...ENG AIR COOLED 6 26 6400IC MM433 7 99 ...
Page 358: ...ENG LIQUID COOLED 7 2 6400IC MM433 7 99 ...