adding a tnt switch

[mikietoo]

Motor is a 77 140 hp Evinrude. The remote control has a tnt switch but there is no switch at the back near the motor. I have a waterproof spdt togle that rated 250v 15amp. Is this switch heavy enough to operate my tnt motor?
Thanks in advance. This is a great site. I really appreciate the help that I sometimes get here.

 

[glenn property of pam]

Re: adding a tnt switch

the tnt switch will only need to handle 1/4 amp as it will be operating relays. make sure its waterproof or you will have the motor trim when you dont expect it to. (been there done that). open the relay box and look for the green/white stripe and blue/white stripe wires going to the relays they go to terminal screws in the box (the box is under the cowling). always best to test with a volt meter by pulling the relays out and getting someone to push the up/down buttons the wires should read 12v+ when pushed. the feed wire is red and should be +12vdc all the time as its coming off the inline fuse near the starter solinoid. the 12vdc+ goes to the common on the switch the green/white goes one side (down if i remember correctly) and blue/white goes the other side. hope this helps.

 

[mikietoo]

Re: adding a tnt switch

Switch is a bat type toggle and has a rubber boot that goes over the handle so will probably be OK. Thanks again.

 

[NYBo]

Re: adding a tnt switch

What you need is momentary contact, center off switch like this one (Note: the picture is not of the actual switch type; it is just an example to show what it looks like in general). Is that what you have?

 

[Jlawsen]

Re: adding a tnt switch

What you need is momentary contact, center off switch like this one (Note: the picture is not of the actual switch type; it is just an example to show what it looks like in general). Is that what you have?

You'll see them listed as MOM - Momentary - Off - Momentary While your at it mount one up forward near the bow if you can. That'll make trimming up the motor at the ramp easy and if you fish from up there you can trim it up and get over stumps and stuff without skipping a beat.

 

[glenn property of pam]

Re: adding a tnt switch

You'll see them listed as MOM - Momentary - Off - Momentary While your at it mount one up forward near the bow if you can. That'll make trimming up the motor at the ramp easy and if you fish from up there you can trim it up and get over stumps and stuff without skipping a beat.

+1 thats why i know the colors on my evinrude i just put one up front so i didnt have to get up to trim the motor when trolling.

 

[mikietoo]

Re: adding a tnt switch

My switch is similar. The description is: Amico AC 250V 15A ON/OFF/ON Momentary SPDT Toggle Switch with Waterproof Boot.

I'm pretty sure this will work but am still concerned about the current rating for my switch. I do not have a modern relay system for my tnt. All the wiring is in a box with a solenoid (I know it is a relay). In looking at my schematic, it appears that the down circuit is from the battery through the switch to the motor (direct). The up circuit is through the solenoid. I assume that this is because it takes more current to raise the motor that to lower it. So back to my original question. Does my switch have a high enough current rating to operate the solenoid and to lower the motor?

 

[Jlawsen]

Re: adding a tnt switch

That gives it a whole new perspective. You could get another relay/solenoid for the down just to be safe and then you'd be fine with your switch. I think if you look at the tnt switch that you already have you can get a pretty good idea of what it takes. If it's built into the control then it's not going to be anything heavy duty. If theres a separate switch for up and down then you might be right about your switch not being big enough. If that's the case the simplest and cleanest long term solution it to add the second solenoid. You can probably use a readily available Merc solenoid if you want.

 

[Jlawsen]

Re: adding a tnt switch

Oh shoot, I missed it completely, thats just a single ground pump. Its under power up and down and uses a single solenoid. Your switch will be fine.

 

[glenn property of pam]

Re: adding a tnt switch

:facepalmps same here......thats a older version