3406E and 3456 Industrial Engines Caterpillar

Illustration 1	g00297167
Typical example

(1) Inlet port

(2) Pressure regulating valve

The pump performance has the following specifications. The specifications are obtained when the pump is using diesel fuel.

Run the pump at 2940 rpm. The flow at 650 kPa (94 psi) must be 4.5 L/min (1.19 US gpm).

Run the pump at 840 rpm. The flow at 550 kPa (80 psi) must be 3.0 L/min (0.79 US gpm).

Run the pump at 100 rpm with the inlet to the atmosphere for 10 seconds. The pump must maintain a vacuum of 60 kPa (9 psi) for 30 seconds once the inlet is blocked.