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I. Checks and adjustments
I. Checks and Adjustments
Check and adjustment instructions for the extra
equipment are in section K, after each extra equipment.
I 1. Engine
I 1.1. Bleeding fuel system
There should be no air in the fuel system to ensure that
the motor function is of maximum efficiency. The system
automaticly removes the small guantity of air which has
built up in the filters and injection pump. The fuel system
must be bled if any part of it has been removed or if the
tractor has run out of fuel during driving so that air has
entered the system. Bleed the fuel system as follows:
I 1.1.1. Bleeding distributor pump system of
air
69---88
1
1. Pump by hand the lever (1) on the fuel pump. If
pumping feels ineffective, turn the engine a little, so the
camshaft turns away from the line of the pump arm.
69---89
3
2
2. Open the bleed screw (2). Operate the hand pump (1)
until there are no air bubbles in the fuel which runs out.
Tighten screw (2).
NOTE! Do not open the bleed screw above the
prefilter, as it is in the suction side.
3. Continue pumping and open the bleeding union (3)
which is in the middle of the rearside of the pump, until
there are no air bubbles in the fuel which runs out.
Tighten the union.
CAUTION: When the pump is empty of fuel, do not
leave the tractor switched on for a long time, as there
is a stop solenoid in the injection pump which could
be damaged.
After bleeding the system as detailed above, the fuel
pump will fill up once the starter motor starts to turn the
engine.
4. Start the engine and check that there are no leaks.
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