824G Wheel Dozer, 825G Soil Compactor and 826G Landfill Compactor Hydraulic System Caterpillar

Illustration 1	g00520326

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

For testing purposes, use SAE 10W oil at 65°C (150°F).

Test at Full Speed:

Output ... 54 L/min (14 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 2100 rpm

Engine speed ... 2100 rpm

Output ... 49 L/min (13 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 2100 rpm

Engine speed ... 2100 rpm

Test at Half Speed:

Output ... 24 L/min (6 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 1050 rpm

Engine speed ... 1050 rpm

Output ... 21 L/min (6 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 1050 rpm

Engine speed ... 1050 rpm

(1) 6J-2935 Spring

Length under test force ... 14.7 mm (.58 inch)

Test force ... 192 ± 14 N (43.1635 ± 3.1473 lb)

Free length after test ... 29.7 mm (1.17 inch)

Outside diameter ... 29.65 ± .52 mm (1.167 ± .020 inch)

(2) Torque for the four bolts ... 80 ± 5 N·m (60 ± 5 lb ft)