Tennant 1550, Manual

Page: 73 / 628

MAINTENANCE
3--27
1550 Gas/LPG/Diesel MM283 (8--02)
PRIMING THE FUEL SYSTEM -- CONTINENTAL
ENGINES (For machines serial number
001056--001423)
Priming is necessary on initial installation of the
fuel injection system, after any subsequent
removal, or if the system was drained by running
out of fuel.
Before priming and venting, ensure that the
outside of the vent screws and surrounding area
is thoroughly clean to prevent dirt and foreign
matter entering the system.
NOTE: Electrical equipment such as starters
should be shielded during priming to prevent fuel
entry.
1. Turn the ignition switch to the “on” position.
2. Loosen the filter outlet connection to the fuel
injection pump inlet connection, whichever is
higher, and allow the fuel to flow until free of
air. Tighten the connection.
NOTE: If the filter outlet connection can not be
reached due to the type of filter being used,
loosen the fuel injection pump inlet connection.
3. Loosen any two injector high pressure pipe
nuts at the injector end. Set the accelerator
to the fully “open” position and ensure that
the stop control is in the “run” position.
Crank engine until fuel is free of air bubbles.
Tighten nuts.
NOTE: The bleeding operation may take a
considerable amount of cranking with the starter
to purge all air. It is important that the battery be
in good operating condition when bleeding.
If the engine will not start after bleeding, or any
other time, it may be an indication of a low battery
charge. If the voltage to the fuel shutoff solenoid
falls below 8 volts, the valve will shut off fuel to
the engine. This may happen during cranking if
the battery charge is low. The condition may not
be readily apparent since cranking speed might
still be good.
4. Start the engine.
A
B
FUEL SYSTEM SCHEMATIC
A. Fuel Injection Pump Inlet
Connection
B. Filter Outlet Connection
PRIMING THE FUEL SYSTEM -- PERKINS
ENGINES (For machines serial number 001424 --
001505)
Priming is necessary on initial installation of the
fuel injection system, after any subsequent
removal, or if the system was drained by running
out of fuel.
Before priming and venting, ensure that the
outside of the vent screws and surrounding area
is thoroughly clean to prevent dirt and foreign
matter entering the system.
1. Stop the engine and set the machine
parking brake.
FOR SAFETY: Before Leaving Or Servicing
Machine; Stop On Level Surface, Set Parking
Brake, And Turn Off Machine.
2. Fill the fuel tank.
3. Open the side and top engine access doors.
4. Loosen the vent screw on the top of the fuel
filter.
5. Turn the ignition switch on.