CAB GP 5008514 - Caterpillar

Illustration 1 g06074760
Press and hold the top of secondary steering test switch (1) to activate the secondary steering motor.
Turn the steering wheel fully from left to right. If the steering system responds, the secondary steering is operating. If the steering system does not respond, contact your Cat dealer.
Release the secondary steering test switch. Spring force will return the secondary steering test switch 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.