Amo Posted January 17 Share Posted January 17 So I started my tractor this morning and the century switch did not want to work on the range side. Shut it off to restart to see if that would reset it which it does sometimes and I didn't have enough juice in my battery to start it. Hooked on a set of jumper cables tractor started and the light went out and it's been working fine ever since and it worked yesterday. Does the century switch need to have a certain amount of volts or amps to function properly? Quote Link to comment Share on other sites More sharing options...
nepoweshiekfarmalls Posted January 17 Share Posted January 17 I would think so. Quote Link to comment Share on other sites More sharing options...
Amo Posted January 17 Author Share Posted January 17 14 minutes ago, nepoweshiekfarmalls said: I would think so. Ok. I could kinda see it, but at the same time I wasn't positive. Probably should switch it out. It's still a talk original one. Switched out the power shift side years ago. 81XX hours Quote Link to comment Share on other sites More sharing options...
nate Posted January 17 Share Posted January 17 The sentry is not a switch, It is a small box that does checks for the transmission. They do need correct voltage to work properly Quote Link to comment Share on other sites More sharing options...
snoshoe Posted January 17 Share Posted January 17 It takes more juice to open the solenoid valves. If that fails sentry is triggered. Likely what happened. Quote Link to comment Share on other sites More sharing options...
mrfred54 Posted January 17 Share Posted January 17 Make sure you got good battery and connections. Has your 12v. feed to the sentry been updated? Quote Link to comment Share on other sites More sharing options...
hippy5488 Posted January 18 Share Posted January 18 there is no switch on the range side. speed is the only thing the sentry controls. high and low clutch press. is monitored by sentry. anything below 9 volts will really mess with electronics Quote Link to comment Share on other sites More sharing options...
5488Duke Posted January 20 Share Posted January 20 As the others have said, your problem is not the sentry it is the batteries, cables, and charging system. Any one of those items start to fail and you will drop voltage and lose your sentry controller. This was the main reason back in the late 80’s and early 90’s that so many sentries were removed and bypass harness/test harnesses installed. People did not know the ins and outs of the system. Exact reason for wiring update bulletins. Sentry would lose voltage and tractor would come to a complete stop in the field. 2 Quote Link to comment Share on other sites More sharing options...
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