854G Wheel Dozer Hydraulic System Caterpillar

Illustration 1	g00101247

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

Type of the pump: Gear

For the test, use SAE 10W oil that is at 65°C (150°F).

Test at full speed:

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

Pressure ... 690 kPa (100 psi)

Pump speed ... 1885 rpm

Engine speed ... 1750 rpm

Output ... 82.8 L/min (21.87 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 1885 rpm

Engine speed ... 1750 rpm

Test at half speed:

Output ... 43.5 L/min (11.50 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 940 rpm

Engine speed ... 875 rpm

Output ... 41.4 L/min (10.94 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 940 rpm

Engine speed ... 875 rpm

(1) Torque for the four bolts. ... 70.5 ± 2.5 N·m (52.00 ± 2.00 lb ft)