797F and 797F XQ Off-Highway Truck Braking System Caterpillar


Gear Pump (Brake Cooling, Hoist)

Usage:

797F LAJ


Illustration 1g02513156

The pump must rotate freely by hand before and after you assemble the gear pump to the bevel gear case.

Lubricate the pump with oil before you operate the pump.

(1) Differential scavenge section

Rotation ... Clockwise
Test speed of the pump ... 900 rpm
Test pressure of the pump ... 690 kPa (100.1 psi)
Minimum flow of the pump ... 90.0 L/min (23.78 US gpm)

(2) Differential lubrication section

Rotation ... Clockwise
Test speed of the pump ... 900 rpm
Test pressure of the pump ... 690 kPa (100.1 psi)
Minimum flow of the pump ... 56 L/min (14.8 US gpm)

(3) Final drive lubrication section

Rotation ... Clockwise
Test speed of the pump ... 900 rpm
Test pressure of the pump ... 690 kPa (100.1 psi)
Minimum flow of the pump ... 66.0 L/min (17.44 US gpm)

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