938H Wheel Loader and IT38H Integrated Toolcarrier Power Train Caterpillar

Illustration 1	g01947668
Adjustment Link for Articulation Sensor (1) Articulation sensor (2) Adjustment lever in the forward position (3) Locknuts (4) Adjustment link (5) Shaft

Sensor Adjustment With CAT Electronic Technician

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Illustration 2	g00281507

1. Install the steering frame lock.

2. Connect the CAT Electronic Technician to the service connector.

3. Turn the engine start switch to the ON position, but do not start the engine.

4. Start the CAT Electronic Technician software.

   1. Select "Status Tool".

   2. Select "Differential Lock".

   3. The "Vehicle Articulation Angle" is indicated in the status group. Refer to Illustration 3.

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Illustration 3	g01947687
Sensor Value (typical screen)

5. Use Cat Electronic Technician in order to adjust articulation sensor (1) to 0° ± 4°. The screen in Illustration 3 can be used in order to read the position.

   Note: The steering frame lock must be installed in order to adjust articulation sensor (1) .

6. Adjust the value by loosening bolt (5) and turning shaft (6) in adjustment lever (2) . Adjust linkage (4) until the articulation sensor value is 0° ± 4°. Tighten bolt (5) .

7. Unlock the steering frame lock link so that the machine can be articulated.

8. Articulate the machine in both directions while you watch the value of sensor (1) .

   Note: The machine should articulate 40° in both directions. The machine should not exceed 47° in either direction. During the adjustment procedure, the sensor must be at 0° ± 4° and the steering frame lock must be installed. The sensor must not exceed 47° under full articulation in either direction. Sensor (1) must be replaced if the articulation values do not meet these criteria.