980G Wheel Loader Braking System Caterpillar

Illustration 1	g00466167

(1) Torque for the four bolts ... 72 ± 3 N·m (53 ± 2 lb ft)

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

For testing purposes, use SAE 10W oil at 66°C (150°F).

Test at Full Speed:

Output ... 39.5 L/min (10.27 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 2100 rpm

Engine speed ... 2100 rpm

Output ... 39.1 L/min (10.17 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 2100 rpm

Engine speed ... 2100 rpm

Test at Half Speed:

Output ... 19.8 L/min (5.14 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 1050 rpm

Engine speed ... 1050 rpm

Output ... 19.6 L/min (5.08 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 1050 rpm

Engine speed ... 1050 rpm