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Doosan D1146T - Fuel Injection Pump System Details

Doosan D1146T
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10.3. Fuel Injection Pump
10.3.1. General information of fuel system
The fuel system consists of the fuel tank, injection pump, injection nozzle, fuel filter, and
fuel lines such as pipes and hoses necessary to connect those components.
10.3.2. Injection pump
The components relating to the injection pump should be serviced at regular intervals as
the plunger and delivery valve may be worn after a given length of time for use and cause
the deterioration of the engine.
Make sure that servicing should be performed at the professional maintenance shop as
authorized by Bosch or Zexel Company.
For adjustment of fuel injection volume, refer to the ‘Specifications of fuel injection pump’
described on the following pages.
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Fuel return pipe
Fuel filter
Fuel hose
Nozzle
opening
pressure
Overllow valve
(Valve opening)
pressure 1.6kgf/cm
2
Air vent
Injection pipe
Cooling water
drain plug
Inner diameter o 9.52 outer diameter o 18.1
Inner surface rubber oil durable comosite rubber
Fuel
hose
Injection pump
Fuel supply pump
Fuel pump
Fuel tank
Intake
Return
EDO8006I

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