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


Gear Pump (Brake Cooling, Hoist)

Usage:

797F LAJ


Illustration 1g01964235

Displacement per revolution ... 143.4 cc (8.8 cubic inch)

Rotation ... Clockwise

Maximum pressure ... 24800 kPa (3597 psi)

Maximum speed ... 2500 rpm

(1) Torque for eight nuts ... 225 ± 7 N·m (166 ± 5 lb ft)



Illustration 2g01964236
Section A-A

Note: Each section of the pump has the same specifications.

(2) Assemble the retaining ring opening over the drain hole.

(3) Assemble the shaft seals on either side of the retaining ring with the sealing lip of the shaft seal facing outward.



Illustration 3g01964234
Section B-B

(4) Pressure plates must be assembled with the chamfers on the outlet side.

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