Motorguide Brute wiring

jdwillis39

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Nov 24, 2005
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Friend has given me a Motor Guide Brute F1 as best I can tell. It is foot controlled. Has two red leads and one black going to the battery. Any one know how to wire it up. Is there place to find wiring diagrams and owner manuals. My efforts have been futile.<br />Thanks
 

Silvertip

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Re: Motorguide Brute wiring

Yes - the MotorGuide web site. A three wire system means it's a 12/24 volt motor. You need two batteries. One red lead goes to the POS terminal on BAT #1. The other red lead goes to the POS terminal on BAT #2. The NEG terminal on both batteries are connected together. Then the black wire from the trolling motor connects to either NEG terminal. 12/24V operation is controlled by a switch on the controller. Be sure to use heavy enough wire and install a circuit breaker in each red lead.
 

jdwillis39

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Re: Motorguide Brute wiring

By the way wired the way you described you only get 12 volts even if it is on two legs. The correct wire goes to second batery and it's neg termianl is hooked to the + postive terminal on battery number one. Then you have 12 volts on one leg and 24 volts on the other leg of the circuit by switching the switch on foot pedal you get 12 or 24 v operation.
 

Silvertip

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Re: Motorguide Brute wiring

Thats right. MotorGuide 12/24 volt motors do the 12/24V switching at the motor. What you have is two 12V (PARALLEL WIRED) circuits to the motor with a common return. You DO NOT wire the batteries IN SERIES to get 24V like you would with a 24V only motor. This has to do with the way the motor windings are built. (Caps are not used to make me sound angry. I'm doing it for emphasis.)
 

Silvertip

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Re: Motorguide Brute wiring

I stand corrected. MotorGuide has used two, three, and four-wire systems for 12, 24, and 12/24V operation. If yours works the way you said, it is not an efficient way to utilize two batteries unless the two are connected in parallel during 12V operation. If that does not occur, only one battery will ever be used for 12V operation meaning should you need 24V, the battery with the weaker state of charge will seriously limit max power. Without a schematic of the 12/24 switch wiring its difficult to say how your system operates.
 

redbuster

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Oct 9, 2005
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Re: Motorguide Brute wiring

i've been following this thread and thought i understood the 12/24 wiring but i guess not. the last 2 post confused me which is not hard to do when it comes to electrical stuff. <br /><br />i am looking at an older hand control 12/24 volt motorguide i think it's a brute 1996 model with the 12/24 volt switch on the head unit. how will it be wired i'm not sure how many wires it has at the plug. also does anyone know how much thrust it has in the 12&24 volt setting.<br />thanks bert
 

Silvertip

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Re: Motorguide Brute wiring

Let's try to clear this up. 12V motors typically use a single 12V battery and have two wires. POS & NEG goint to the motor. No confusion so far I hope. Some folks use two twelve volt batteries wired POS to POS and NEG to NEG (called parallel wiring) to provide extra capacity. Paralleling two batteries still provides only 12Volts but the amp/hour capacity is doubled. Hence longer run time. 24volt only motors require two 12v batteries wired in SERIES (POS on Bat #1 goes through a fuse or breaker to the motor. NEG on BAT #1 goes to POS on BAT #2. NEG on Bat #2 goes to neg on the motor. 24V only motors will have just two wires. 12/24V motors is where this gets confusing since these motors can have three or four wires. Three wire systems have two red (or a red and an orange) and a third black wire. This is also true for four wire motors but there will be two black wires. Chances are your motor will be wired as JD indicated in his last post. You would wire the batteries in series (as for 24V operation) as I indicated above. But the second red (or orange) wire from the motor connects to the POS terminal on BAT #2. The switch on the motor then selects which wire will deliver power to the motor. Red = 24V and the other red (or orange) delivers 12V depending on which way the switch is set. You do need to verify this for your motor however as my first post in this thread indicates another way of doing this but the two methods are not interchangeable. Hope this helps.
 

redbuster

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Re: Motorguide Brute wiring

thanks upinsmoke, that did indeed help.<br /><br />thanks again
 
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Jul 8, 2009
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Re: Motorguide Brute wiring

I am in a similar situation, I have a 3 wire 12/24 V Motorguide Brute. Can I use this with just one batteries or do I need two. I would like to use this in just the 12v for now. If so do I just use one red and the black hooked direct and not use the 2nd red wire?
 
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