ADJUSTMENTS AND MAINTENANCE
5-44
6. Continue pumping until the force needed remains
more or less constant. This allows the fuel to be
drawn into the injection pump.
7. Models TX68-68
PLUS
only:
Press the fuel lift pump piston down and firmly
tighten knurled knob C.
NOTE:
If the engine does not start after performing
the above procedure, it will be necessary to
bleed the fuel injector lines while starting the
engine.
This will allow any air to escape that may be in
the high pressure part of the fuel system.
Take all necessary safety precautions when
working on the engine. Do not bleed the lines
when the engine is warm.
Fuel injection pump and injectors
As the fuel injectors and fuel injection pump have to
be set very accurately on specialized equipment, we
strongly recommend that any repairs on these parts
are carried out by your New Holland dealer.
COOLI NG SYSTEM
Coolant level -- Figure 82
Daily check the radiator coolant level on the level indi-
cator A when the engine is cold.
ATTENTION:
Under no circumstances should the engine be
started without water in the cooling system.
If the temperature rises too high during operation, or
if the audible alarm sounds, stop the engine immedi-
ately and locate the cause (coolant level, oil level, fan
and rotary dust screen belt tension, dirty radiator or
rotary dust screen, etc.). Refer to Section 6 - TROU-
BLESHOOTING.
82
51514
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