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

Illustration 1	g00520108

824G

(1) Torque for the four bolts ... 53 ± 5 N·m (40 ± 5 lb ft)

(2) Torque for the four bolts ... 229 ± 23 N·m (170 ± 15 lb ft)

The rotation of the shaft is counterclockwise 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 ... 97 L/min (26 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 2100 rpm

Engine speed ... 2100 rpm

Output ... 87 L/min (23 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 2100 rpm

Engine speed ... 2100 rpm

Test at half speed:

Output ... 46 L/min (12 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 1050 rpm

Engine speed ... 1050 rpm

Output ... 41 L/min (11 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 1050 rpm

Engine speed ... 1050 rpm

Torque for the two bolts which secure the pump to the torque converter housing ... 47 ± 9 N·m (35 ± 5 lb ft)

825G Implement Pump

(1) Torque for the four bolts ... 53 ± 5 N·m (40 ± 5 lb ft)

(2) Torque for the four bolts ... 229 ± 23 N·m (170 ± 15 lb ft)

The rotation of the shaft is counterclockwise 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 ... 75 L/min (20 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 2100 rpm

Engine speed ... 2100 rpm

Output ... 67 L/min (18 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 2100 rpm

Engine speed ... 2100 rpm

Test at half speed:

Output ... 33 L/min (9 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 1050 rpm

Engine speed ... 1050 rpm

Output ... 30 L/min (8 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 1050 rpm

Engine speed ... 1050 rpm

Torque for the two bolts which secure the pump to the torque converter housing ... 47 ± 9 N·m (35 ± 5 lb ft)