Komatsu Utility Avance WB91R-2, Operation & Maintenance Manual

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MAINTENANCE PLAN
211
4.7.10.e DRAINING THE FUEL TANK
BLEEDING THE FUEL CIRCUIT
After filling the tank, turn the ignition key to position « » and wait
approx. 15-20 seconds, in such a way as to bleed the fuel circuit.
IMPORTANT
☞
•
After bleeding the circuit, turn the ignition key to position
«
» for a few seconds and wait at least two minutes be-
fore starting the engine.
•
If the engine starts regularly and then stops or functions
irregularly, check if there is air in the circuit; in this case,
check the tightness of the fuel filter, the water separator
and the fuel pump.
•
When all the fuel in the tank has been consumed, bleed
the circuit by proceeding as described above and repeat
the operation at least twice.
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DANGER
•
When draining the fuel tank, avoid spilling fuel, since this
may cause fires.
•
If some fuel is accidentally spilled, clean the dirty area im-
mediately, in order to prevent it from getting slippery and
to avoid fires.
This operation serves to let all the impurities and the condensate
flow out of the tank; remove the lower plug (1) and wait until
clean fuel flows out.
(Use a 17 mm spanner).
IMPORTANT
☞
•
The tank must be drained before starting the engine, with
temperatures exceeding 0°C; when the temperature is be-
low 0°C, the tank must be drained at the end of work or in
any case with the machine at operating temperature, to
prevent the condensate from freezing.
•
The condensate and the impurities that may have accu-
mulated inside the tank must be eliminated before refuel-
ling.
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