evinrude trolling motor off/on switch headings

[heatz1express]

I just bought a "hardly used" evinrude 24v 74lbs thrust trolling motor. on the foot pedal there is an on/off switch. Off is in the middle position or the switch can be pushed forward to "MOM" or back to "CON". Can someone tell me what these headings mean?

 

[DJ]

Re: evinrude trolling motor off/on switch headings

MOM="MOMENTARY".<br /><br />CON="CONSTANT".

 

[heatz1express]

Re: evinrude trolling motor off/on switch headings

thanks D.J. Could you tell me under what cicumstances do I switch to Momentary and when do I use constant. Does it have anything to do with 12volts versus 24? Or does it simply refer to the fact that when switched to constant the motor runs all the time and when switched to momentary the motor only runs when I hold the foot switch down? When testing before buying I found that the motor only responded to the foot switch when the mom/off/con switch was switched a particular way, not one or the other.<br /> There does not seem to be a switch for switching from 12 to 24 volts. Am I missing something. I assumed that I could run it either 12 or 24 but during testing 12volts did not get the prop turning very quickly even at full speed.<br />on 24 volts the prop spins enough to create a bit of a breeze but not really fast like I thought a 74lb thrust would.<br />How can I tell if this trolling motor is working properly?

 

[Silvertip]

Re: evinrude trolling motor off/on switch headings

Lets start with some basics. A trolling motor is nothing more than a variable speed electric motor. Some run on 12 Volts (one battery required). Some run on 24 Volts (two batteries wired in series required). Some run on EITHER 12V or 24V. If there is no 12/24 switch, and you know for a fact you have a 24V motor, you cannot run that motor on 12 Volts. You need two batteries wired in series (12 + 12 +24). Nearly all trolling motors have a CONSTANT and MOMENTARY switch. CON means constant which means the motor runs all the time at whatever speed you have the speed selector set for. It has nothing to do with 12 or 24 volts. MOM means momentary so the motor will only run when the foot switch is actuated. Although you noticed the motor would run on 12 Volts it would only run slowly. Obviously its only getting half its required voltage so it can't run at its normal speed. I'll anticipate your next question (how do I wire batteries in series?). BAT 1 POSITIVE connects to BAT 2 NEGATIVE. BAT 2 POSITIVE goes to the POSITIVE wire on the trolling motor (usually red). BAT 1 NEGATIVE goes to the negative wire on the trolling motor (may be black or white.) In a 24 Volt system you want identical batteries of the same age.