D379, D398, D399 INDUSTRIAL & MARINE ENGINES Caterpillar


Charging Pump For Hydraulic Starting

Usage:

6L8721 (American Bosch Number RPA300374)

Pressure adjustment range ... 1500 to 3000 psi(10 300 to 20 700 kPa)

Normal pressure to start the pump automatically (cut-in) ... 2500 psi(17 000 kPa)

Normal pressure to stop the pump automatically (cut-out) ... 3000 psi(20 700 kPa)

Output at 3000 rpm of pump and pressure of 3000 psi (20 700 kPa) ... .5 U.S. gpm(2.0 litre/min)

Maximum suction height (head) ... 3 ft.(0.91 m)

NOTE: The oil RETURN passage near the mounting flange must be above the horizontal center line. This position makes correct lubrication of pump parts.

Caterpillar Information System:

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