938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Hydraulic System Caterpillar

Illustration 1	g00275370

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

(1) Section for Steering System (Shaft End)

(2) Torque for the two bolts ... 11 ± 1 N·m (8 ± 1 lb ft)

(3) Section for Hydraulic System (Center Section)

Type of Pump: Vane

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

Test At Full Speed:

Output ... 163 L/min (43 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 2600 rpm

Engine speed ... 2390 rpm

Output ... 147 L/min (39 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 2600 rpm

Engine speed ... 2390 rpm

Test At Half Speed:

Output ... 82 L/min (22 US gpm)

Pressure ... 690 kPa (100 psi)

Pump speed ... 1300 rpm

Engine speed ... 1195 rpm

Output ... 75 L/min (20 US gpm)

Pressure ... 6900 kPa (1000 psi)

Pump speed ... 1300 rpm

Engine speed ... 1195 rpm

(4) Section for Brake System (Cover End)

(5) Torque for the four bolts ... 204 ± 14 N·m (150 ± 10 lb ft)

Note: For more information about the specifications for the steering pump, refer to the Service Manual module Specifications, RENR6070, "Steering System" for the machine that is being serviced.

Note: For more information about the specifications for the brake pump, refer to the Service Manual module Specifications, RENR6073, "Braking System" for the machine that is being serviced.