Perkins Phaser Series - Page 249

20C FUEL SYSTEM
If the system or a component in the system has
been drained:
1 Turn the start key to the 'R' position. If a manual
stop control is fitted, ensure that it is in the "run"
position.
2 Operate the lever of the fuel lift pump slowly for
approximately two minutes. If the drive cam of the
fuel lift pump is at the point of maximum cam lift, it
will not be possible to operate the priming lever. In
this situation, the crankshaft must be turned one
revolution.
3 Operate the starter motor until the engine starts.
If the engine runs correctly for a short time and
then stops or runs roughly, check for air in the fuel
system. If there is air in the fuel system, there is
probablely a leakage in the low pressure system.
Standard method
1 Loosen the vent plug on top of the twin element
fuel filter (A1) by two or three turns. If a single
element filter is used, loosen the banjo connection
bolt which is fitted on the top of the filter (B1).
2 Operate the priming lever on the fuel lift pump
until fuel, free of air, comes from the filter vent
point. Tighten the vent plug or the banjo connection
bolt. If the drive cam of the fuel lift pump is at the
point of maximum cam lift, it will not be possible to
operate the priming lever. In this situation, the
crankshaft must be rotated one revolution.
3 Ensure that the manual stop is in the "run"
position. If an electrical stop control is used, turn
the key of the start switch to the "R" position.
CAV DPA fuel injection pump:
4 Loosen the vent screw (C1) on the lock screw of
the hydraulic head and loosen the vent screw (C2)
on the top of the governor housing. Operate the
priming lever of the fuel lift pump until fuel, free of
air, comes from the vent point in the lock screw of
the hydraulic head. Tighten the vent screw.
Continue to operate the priming lever on the fuel lift
pump until fuel, free of air, comes from the vent
point on the governor housing. Tighten the vent
screw.
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PA254
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PA261
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20C.06 Perkins Phaser/1000 Series, April 1995