TM 5-3805-263-14&P-1Supplemental Steering SwitchDifferential Lock SwitchMove and hold the switch to MANUAL •The indicator will come on to indicate the system is functional. Leave the switch in the MANUAL position only longenough to test the supplemental steering. Release theswitch and it will return to AUTO ô (the switch must bein the AUTO position while operating the machine).NOTE: With the switch in the AUTO position, if theengine stalls, the supplemental steering system willprovide steering control.Move the switch to UNLOCK í. The indicator will come on to indicate the differential is unlocked and the speed of the wheels can bedifferent. Move the switch to LOCK ÷ and the differential will be locked. When the tandem wheels on one side of the machine spin, the tanaem wheels on the other side, if they are on afirmer surface, can move the machine.Dome Light Switch15
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