Operation 11-9 To Test - Perkins New 1000 Series Workshop Manual

11
New 1000 Series
To test Operation 11-9
2 2
1 Disconnect the fuel outlet pipe from the fuel lift pump. Fit a 0-70 kPa (0-10 lbf/in ) 0-0,7 kgf/cm pressure
gauge to the outlet of the lift pump. Release the connection at the gauge and operate the priming lever of the
lift pump to eliminate air from the pipe. When fuel, free of air, flows from the pipe tighten the connection. Ensure
that there are no leaks at the connections between the pump and the gauge.
2 Operate the starter motor for 10 seconds with the engine stop control in the stop position or with the stop
solenoid disconnected.
3 Note the maximum pressure indicated on the gauge. If the pressure indicated is less than the test pressure
shown in the data and dimensions, see "Fuel lift pump - four cylinder engines" on page 30 or "Fuel lift pump -
Six cylinder engines" on page 30, repair or renew the pump. Also check the rate at which the pressure reduces
to half the maximum pressure obtained. If this is less than 30 seconds, repair or renew the pump.
4 Remove the gauge and connect the outlet pipe to the lift pump. Release the vent screw on the fuel filter head
and operate the priming lever until fuel, free of air, flows from the vent screw. Tighten the vent screw.
5 Connect the engine stop solenoid.
Workshop Manual, TPD 1350E, Issue 4 227
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