631G and 637G Wheel Tractor-Scrapers Auger Hydraulic System Caterpillar


Gear Pump (Auger)

Usage:

631G DFA



Illustration 1g00765863

The rotation of the shaft is counterclockwise when the pump is viewed from the drive end.

(1) Discharge port

(2) Torque for the four bolts ... 99 ± 4 N·m (73 ± 3 lb ft)

Bench Test Specifications

Pump capacity at 2000 rpm and 6900 kPa (1000 psi) ... 93 L/min (24.6 US gpm)

Note: For the testing of the pump capacity, use SAE 10W oil that is at a temperature of 65°C (150°F).

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