Doosan P158LE -III, Руководство по эксплуатации и техническому обслуживанию

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Technical Information - 26 -
2.2.9. Injection pump
No alterations must be made to the injection pump. If the lead seal is damaged the warranty on the
engine will become null and avoid.
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Faults
We strongly recommend that any faults developing in the injection pump should be taken care of by
authorized specialist personnel.
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Bleeding the fuel system
Bleeding the fuel filter is by releasing the bleed screws and operating the manual primer.
The suction chamber of the injection pump is continuously bled via the relief valve during operation If
the suction chamber is completely empty, e.g., when fitting a new pump, filling and bleeding it is by
actuating the manual primer.
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Fuel lift pump
The fuel lift pump is operated by the injection pump camshaft via the roller tappet.
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Strainer
After every 200 hours of operation the fuel strainer connected upstream of the fuel lift pump should
be cleaned.
2.2.10. Fuel filter
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After every 1,200 hour of operation,
drain the water and sediment from the
fuel-water separator.
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Shut off the engine. Use your hand to
open the drain valve(6).
Turn the valve counter clockwise
approximately 2 ~ 3 turns until draining
occurs. Drain the filter sump of water
until close fuel is visible.
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Turn the valve clockwise to close the
drain valve. Do not over tighten the
valve, overtightening can damage the
threads.
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5
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3
4
6
EA2O4009