Secondary Steering
If the hydraulic pressure for the steering system is lost during machine operation, the secondary steering system will automatically become active. A warning category 3 will be given by the Caterpillar Monitoring System. Secondary steering must only be used in order to steer the machine to a location for stopping.
Testing the Secondary Steering System
Test the secondary steering by using the following procedure:
- Park the machine on a hard level surface. Lower the dump body and stop the engine. Leave the engine start switch in the ON position.
- Press and hold the top of the test switch for the secondary steering. This will activate the secondary steering motor.
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- Turn the steering wheel fully from left to right. If the machine responds to the steering input the secondary steering is operating. If the machine does not respond to the steering input the secondary steering is not working.
- Release the test switch for the secondary steering. Spring force will return the test switch for the secondary steering to the OFF position. This will deactivate the secondary steering motor. Do not run the secondary steering motor longer than 12 seconds while you are testing the secondary steering.
Do not operate the machine if the secondary steering is not operating correctly.
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