Perkins New 1000 Series, Workshop Manual, Page: 186 / 290

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186 Workshop Manual, TPD 1350, issue 3
New 1000 Series
Typical fuel system
six cylinder engines
Fuel systems vary from application to application, this
information is provided for training purposes only.
Fuel (A9) from the tank (A2) leaves the pre-filter (A4)
and then passes to the diaphragm type lift pump (A1),
which is driven by an eccentric on the camshaft. Fuel
leaves the lift pump under pressure and passes
through a full flow filter (A5) to the fuel injection pump
(A8).
Some fuel injection pumps have a self-vent pipe (A7)
to remove air from the fuel system back into the fuel
tank. The fuel in the injection pump also lubricates
and cools the pump. A fuel heater or cooler may be
fitted between the filter head and filter canister. The
pump has a mechanical governor to control the
engine speed.
The pumps also have an electrical stop solonoid and
an electrically operated cold start advance unit fitted.
The fuel injection pump increases the fuel pressure
and injects high-pressure fuel at the correct time and
sequence through pipes to the atomisers (A11). A fuel
leak-off rail is fitted to the top of each atomiser and
leak-off fuel (A10), used to lubricate the atomisers, is
returned to the fuel tank through a pipe (A3).
A
A0406
1
1
3
4 6 7 8
9
10
5
2
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