PUMP GP-PISTON 3782847 - Caterpillar

Illustration 1 g02935236
Illustration 2 g02935297
Section A-A
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Section B-B
Illustration 4 g02935376Rotation of the pump is clockwise when the pump is viewed from the drive end.Type of pump: GearBench test requirements: SAE 10W oil must be stabilized at 82° 4°C (180° 10°F) before the test is performed.Each section of the gear pump has the following performance specifications:Test at Full Speed: Output ... 297 L/min (78 US gpm)Test pressure ... 690 kPa (100 psi)Test speed of engine ... 1950 rpmTest speed of pump ... 2069 rpmOutput ... 267 L/min (70 US gpm)Test pressure ... 6900 kPa (1000 psi)Test speed of engine ... 1950 rpmTest speed of pump ... 2069 rpmTest at Half Speed: Output ... 148 L/min (39 US gpm)Test pressure ... 690 kPa (100 psi)Test speed of engine ... 975 rpmTest speed of pump ... 1034.5 rpmOutput ... 133 L/min (35 US gpm)Test pressure ... 6900 kPa (1000 psi)Test speed of engine ... 975 rpmTest speed of pump ... 1034.5 rpm (1) Torque for eight bolts ... 250 7 N m (184 5 lb ft) (2) Assemble the ring opening over the drain hole. (3) As shown, assemble the shaft seals so that the spring loaded surfaces are opposite each other. (4) Outlet (5) Pressure plates must be assembled with the chamfers on the outlet side. Note: See Illustration 4 in order to assemble the gears of all four sections of the pump. Make sure that the orientation of the arrows is correct.