Help with glo plugs! MT372

longtrman · Apr 19, 2008

I have a new PTO conversion box that bolts to the back of a Satoh Beaver tractor and converts to standard 540 PTO for sale. Also, 1 set of Beaver decals and 1 set of Bison decals. I have 1 Beaver injection pump but it is dirty and maybe used. Is anyone interested?

mit · Apr 21, 2008

nice looking tractor.sounds like you may have the switch wired wrong. it could also be that you have a bad harness.when you turn the switch to glow position do you get 12v at the switch terminal that goes to the glow indicator? if not you have to see which terminal is putting out 12v when you are in the glow position.then you wire that switch terminal to the glow indicator.the other side of the glow indicator should go to the glow plugs.the main feed to the switch should be coming from the the starter terminal where the heavy battery wire is hooked up.also check your battery ground and your harness ground.

BTackett · Apr 22, 2008

Mit, I have checked that several times and I am getting 12v on both glow output wires from the switch when in the preheat position but the indicator is not lighting up and the plugs are not getting hot.
If I run 12 directly to the plugs they get hot but not through the switch. I have kind of put it off now as it is warn and the tractor starts, but will get back into it after I get my woodshed built.
Too many irons in the fire now.

thanks,
Bill

mit · Apr 22, 2008

ok good.where did you connect the ground while testing?try this when you have time: use the alternator frame as ground for your meter.then test the voltage at the top of the glow plug with the switch in the glow position.you should get about 12v.if not check at glow indicator output.then at glow indicator input. voltages should be about 12v.then disconnect the glow indicator and check the resistance. use the Rx1 scale.you should read about 1 to 3 ohms.if you do not got this reading check the connections at where the glow wire meets the binding post.there could be corrosion or paint on the binding post.clean with sand paper and reconnect. i will try to attach diagram.
good luck

BTackett · Apr 23, 2008

I looked at the diagram and my switch is not wired that way. I have two post on the back for glow plugs. One side goes to the input side of the indicator and the other side comes back to other post on switch and another wire goes from there to the glow plugs. This was the way it was wired previously and worked fine.

I will keep you up to date on what I find out when I get back into it. I also have a current draw somewhere that is running my battery down now. I have to find that also.

thanks,
Bill

mit · Apr 29, 2008

My suggestion would be to disconnect the wires from the switch that goes to the glow indicator and the glow plugs. connect a volt meter to one of the glow terminals on the switch and check for 12v with switch in glow position.then check the other terminal. it is very possible that the solution would be to flip flop the wires at the switch. let us know.

BTackett · Apr 30, 2008

I did that and I am getting 12v on both terminals on the back of the switch in the preheat position.

I am going to try and get some time to look into it one of these days. I may even use another battery and see it that is the problem. I have a brand new battery on it now but you never know.

thanks,
Bill

mit · Apr 30, 2008

ok dude here is the million dollar question.if you are getting 12v on both switch terminals with no wires on them then how will the glow indicator work?you have to have a grounding path for this thing to work.the switch may have to tested and rewired.you have to test it in the glow position.the on position,off position and the start position. make up a chart of all the terminals and how they read in these positions.then you will figure out how to put back the wires.or you can get the color coded wiring diagram for that tractor from Valley Power. good luck

mit · Jun 2, 2008

well did you get it to work?all i think you have to do is switch the wires at the switch.one terminal would hot at heat and one at start.

BTackett · Jun 4, 2008

Not yet, It starts easily in warm weather so I haven't had time to work on it.
trying to get some work done on the house before it gets into the 90's here. I can work on the tractor in an a/c garage this summer.

I will keep everyone updated.

Bill

BobSmith · Sep 28, 2012

shags-72 said:
I just looked at the pretty much finished pics. That thing is awesome! But did you make sure that the paint was off of the plugs? I couldn't tell from the pics. It is beautiful man.

What was the number on the fan belt? I just changed all the fluids and my belt was toast.

Could anyone out there tell me where to buy a owners manual for my MT372 I brought it used two weeks ago
and Where is the fuse box at I put a new light switch on and the lights can for about 5 sec and out they went know idea where fuse is Please help me.

bobsandpeggy@yahoo.com

BobSmith · Sep 28, 2012

Could someone please tell me the fan belt number also because I have no manual and I can read the number. I am disabled and can't do a lot myself and what I can do takes me about three times the time it would have before my wreck

skylarkguy · Sep 28, 2012

Fan belt number should be a Napa part number 7345. As for the fuse it is likely an inline fuse holder you are on the look out for.

shags-72 · Sep 29, 2012

A reply from way earlier in this thread. I will see if I can scan my operating manual. But if you look in the first page of this thread there is a maintenance manual on another forum site. Here is the link to the site.

http://api.viglink.com/api/click?fo...OP%20MANUAL/&jsonp=vglnk_jsonp_13488930557536
Shags, I sent you a PM. But for anyone else the belt is a Dayco 15340.

thanks.
Bill

BobSmith · Oct 1, 2012

I guess I am really dumb I went to the site and saw nothing except it said there is no manual Thanks for the belt number This is great and I hope I get better at doing this.

shags-72 · Oct 4, 2012

Here is a snapshot of the files that I am talking about. It is a maintenance manual not an owners manual but that should cover most everything and it is free when you sign up to be a member of that group!

BobSmith · Oct 5, 2012

How do I join so I can get this owners manual what is the address does it cost to join. You would never know I am a computer programmer would

Here is a snapshot of the files that I am talking about. It is a maintenance manual not an owners manual but that should cover most everything and it is free when you sign up to be a member of that group!

Help with glo plugs! MT372-file-page.png

shags-72 · Oct 6, 2012

Well first you have to (lol) join Yahoo and then join that group. It should give you a chance to do this when you go to the link I posted. It does where it asks to login there is a link to create a new account. I believe if you do that it will take you to the site but if it doesn't just click my link again and again you will be asked to join that Group. Then you can download the files. But here it is anyway. You should join those anyway as there are Mitsubishi groups on Yahoo.

BobSmith · Oct 9, 2012

Thanks to all you fine people for helping me get to be able to run my MT372 tractor and all the other help you have given I just hope I cn help you all some time.