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PowerTech PT-3000 Manual

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INSTALLING THE FUEL TUBES AND LINES
The diesel fuel system for the PT-3000 must be designed to operate independently
from the vehicles main engine. In most installations both engines operate
from a common fuel tank with separate pick-up tubes for each engine, not a Tee fitting
arrangement. This prevents either or both engines from being starved for fuel. The APU’s
fuel pick-up tube should be shorter than the vehicles; therefore fuel may not be available
to the APU when fuel supply is low. This will prevent the APU from depleting the fuel
supply needed by the main drive engine.
NOTE: Using a simple Tee fitting to supply both engines from a common fuel line is not
recommended. This practice may possibly cause a fuel starvation situation to either or
both engines. Also, if excessive pressure were to build up in the main supply line it could
possibly cause a failure of the APU’s fuel lines or connectors and a hazardous fuel leak
may occur.
Care must be taken when routing the fuel lines from the main tank to the APU. Keep
the fuel line as short as possible while maintaining adequate clearance from the exhaust
system and moving components. Fuel lines must be run along the frame side rails or
under carriage. Never run fuel lines inside the cab. Securely fasten the fuel lines with the
hardware that is recommended for the type of fuel line that is used. Allow a minimum of
8 inches of flexible fuel line to make the connection.
Fuel Pick-up Tube Assembly
Fuel Pick-up should be at least 3” shorter
than the depth of the fuel tank. Measure
the fuel tank and cut pick-up tubes to
desired length. Carefully bend the 3/16”
return tube 3” to 4” away from the supply
tube. Pull both tubes together and insert
into tank. Return tube will spring back to
the bent position. Tighten fitting and attach
fuel hoses.
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