Komatsu WA800-3E0, Руководство по эксплуатации и техническому обслуживанию

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TROUBLESHOOTING
OPERATION
3-144
TROUBLESHOOTING 3
WHEN MACHINE RUNS OUT OF FUEL 3
When starting the engine again after running out of fuel, fill with fuel, then bleed the air from the fuel system before
starting the engine.
Always watch the fuel level and be careful not to run out of fuel.
If the engine has stopped because of lack of fuel, it is necessary to use the priming pump to bleed the air com-
pletely from the fuel circuit.
PROCEDURE FOR BLEEDING AIR
CAUTION
The fuel injection pump and nozzle of this engine consist of more precise parts than the conventional
ones. If foreign matter enters them, it can cause a trouble. Accordingly, if dust sticks to the fuel system,
wash it off with clean fuel.
When opening the air bleeding plug at the fuel filter head, take care. Fuel may spout because of residual
pressure.
1. Loosen air bleed plug (1) and (2) at the fuel main filter
head.
2. Loosen wing nut (5) holding lever (4) of priming pump (3).
3. Pump lever (4) to pump out fuel from air bleed plug (1) on
the left side of the fuel main filter head until no more bub-
bles come out with the fuel.
4. Tighten air bleed plug (1) on the left side of the fuel main fil-
ter head.
Tightening torque: 7.8 - 9.8Nm {0.8 - 1.0 kgm}
5. Continue to pump lever (4) and pump out fuel from air
bleed plug (2) on the right side of the fuel main filter head
until no more bubbles come out with the fuel.
6. Tighten air bleed plug (2) on the right side of the fuel main
filter head.
Tightening torque: 7.8 - 9.8Nm {0.8 - 1.0 kgm}
7. Loosen air bleeder (6) at the side of supply pump on the
side where the fuel main filter is mounted.
8. Pump lever (4) to pump out fuel from air bleeder (6) until no
more bubbles come out with the fuel.
9. Tighten air bleeder (6).
Tightening torque: 4.9 - 6.9Nm {0.5 - 0.7 kgm}
10. Tighten wing nut (5) of priming pump (3) securely to lock
lever (4) in position.