Perkins Phaser Series - Page 206

FUEL SYSTEM 20A
Some naturally aspirated engines have a Stanadyne
fuel injection pump (A) fitted. The electrical stop
solenoid on these fuel pumps is fitted inside the
governor housing. The earth connection (A1) and
the electrical supply connection (A2) are on top of
the governor housing.
The latest engine types have a Lucas DP200 fuel
injection pump (B) with a locking screw (B1). Some
of these pumps have an electrically operated cold
start device (B4) which retards the timing for normal
operation. Other features of this pump include a
boost control (B2) and a stop solenoid (B3). These
pumps are fitted with a self-vent feature.
A data plate is fitted to the side of the pump. A
typical data plate (C) and an example of the
information shown on the plate is:
Maximum engine no load speed (1)
Fuel pump code (2)
Perkins part number (3)
Fuel pump serial number (4)
Manufacturers model number (5)
For details of the fuel pump code for the engine see
the data and dimensions at the end of this section.
The "low spring" atomisers receive high pressure
fuel from the fuel injection pump and inject this fuel
into the combustion chamber of the pistons as a
very fine spray. The atomisers are set in the
factory, but they must be checked in accordance
with the preventive maintenance schedules. The
pressure at which atomisers operate can be
adjusted by a change of shims fitted above the
spring.
For details of the atomiser service setting pressures
for the engine see the data and dimensions at the
end of this section.
The fuel injection equipment must only be checked
and adjusted by personnel who have had the
correct training.
The fuel lift pump is of the diaphragm type and is
mechanically driven. It is fitted on the right side of
the cylinder block and is driven by an eccentric on
the camshaft. The pump is fitted with a priming
lever.
a a a
a
a
a
a
a
a
a a a
2
a a a
a
a
a
a
a
a
a
a
a
a a a
1
a a
a a
a a
a a
3
PA152
aaaaaaaaaa
a a a
a
a
a
a
a
a
a a a
1
a a a
a
a
a
a
a
a
a a a
2
PA299
a a a
a
a
a
a
a
a
a
a
a
a a a
4
a a
a a
a a
a a
1
a a
a a
a a
a a
3
H3 DB2435 4759
2820
Model No RPM
Ser N
o
Mfg N
o
2643U001 AL
7585429
PA153
a a a
a
a
a
a
a
a
a
a
a
a a a
5
a a a
a
a
a
a
a
a
a a a
4
a a a
a
a
a
a
a
a
a
a
a
a a a
2
a a a
a
a
a
a
a
a
a
a
a
a a a
3
a a a
a
a
a
a
a
a
a a a
1
Perkins Phaser/1000 Series, April 1995 20A.03