Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Electric Motor Starter


 
Post new topic    
View previous topic :: View next topic  
Author Message
60 acre hillside
Long Time User


Joined: 27 May 2010
Posts: 1117


Report to Moderator

PostPosted: Wed Jan 30, 2013 5:45 pm    Post subject: Electric Motor Starter Reply to specific post Reply with quote

Years ago when quite young there was an old man who worked on tractors in an old shop with really old tools and a dirt floor.His most popular tractirs were the old McCormick standard treads. He had a huge drill press that had two switches. He told me to be careful with it and use both switches to start it and then just run the larger switch. This worked fine.

I have a 10 inch tool grinder with a broken centrifigual start switch. I had it worked on one tome and the repair shop could not get the right switch and repaired the switch with epoxy.the repair did not last long
I was wondering if I could wire up this grinder like that and possibly use an automotive Ignition / starter switch.
 
Back to top
View user's profile
NCWayne
Tractor Guru


Joined: 20 Jun 2007
Posts: 3950


Report to Moderator

PostPosted: Wed Jan 30, 2013 6:14 pm    Post subject: Re: Electric Motor Starter Reply to specific post Reply with quote

A automotive switch isn't going to be able to handle the current required to start a motor like your wanting to do. That said the best way to do what your needing is to use two motor starters. The best way to explain it is this is that it's wired as a push to start/push to stop circuit. In other one starter is wired with an auxiliary contact so it pulls in and stays in when the start button is pushed. The other contact is wired to where it only pulls in when the start button is pushed. You should be able to do a search online to see how it's wored.

Doing it this way gives you a momentary switch (as long as the start button is pushed) that pulls in and engages the capacitor start, and the second starter that pulls in and holds to keep the motor running.

I wired a 10HP 3 Phase motor this way to use as a rotary phase converter and it works great. In my case the 3 phase motor needs the capacitors tied in on the third leg to get it started spinning, similar to the way a single phase, capacitor start motor needs the capacitor to get it spinning. Once spinning the capacitors are dropped out of the circuit, in most cases by a centrifugal switch, but in this case simply by releasing the start button and letting the starter wired for momentary operation open and drop it out.

Like I said I did mine awhile back and it works great so I don't see why it wouldn't work in your application also. The only drawback is the starters aren't usually cheap if you have to buy them new. I got lucky and got a few from the place my Dad works that came off pump controllers that they had removed from service. That said if you don't have the starters on hand try calling around to some places that do municiple type well and sewer equipment repair. If they are like where Dad is they pull at least one controller or two a week that has a good contactor in it but another bad part that keeps the whole thing from working properly.

Good luck...
 
Back to top
View user's profile
Russ from MN
Tractor Expert


Joined: 11 Feb 2006
Posts: 2886


Report to Moderator

PostPosted: Wed Jan 30, 2013 7:09 pm    Post subject: Re: Electric Motor Starter Reply to specific post Reply with quote

I have done it using a momentary contact push button for the start circuit, worked fine, but it was a 1/5 hp motor.
 
Back to top
View user's profile
Dave Sherburne NY
Tractor Expert


Joined: 06 Nov 2007
Posts: 2482
Location: Sherburne NY

Report to Moderator

PostPosted: Wed Jan 30, 2013 8:03 pm    Post subject: Re: Electric Motor Starter Reply to specific post Reply with quote

Wayne, I don't know, but would one of those starter switches off an old Oliver tractor work????
 
Back to top
View user's profile
Bob
Tractor Guru


Joined: 03 Jan 1998
Posts: 42410


Report to Moderator

PostPosted: Wed Jan 30, 2013 10:54 pm    Post subject: Re: Electric Motor Starter Reply to specific post Reply with quote

Toss the obsolete old mech start switch in the trash can.

Go to a refrigeration parts supplier, commercial overhead door opener co., or possibly Grainger, and ask what they have in the line of universal replacement solid-state motor start switches. Info on ONE brand is at the .pdf file linked below, including selection info and installation instructions.

Problem solved.
Untitled URL Link

 
Back to top
View user's profile
Dusty MI
Long Time User


Joined: 17 Dec 2000
Posts: 1463
Location: Lansing MI. area

Report to Moderator

PostPosted: Thu Jan 31, 2013 4:59 am    Post subject: Re: Electric Motor Starter Reply to specific post Reply with quote

Some, maybe all single phase submersible pumps use a timed relay to switch from start to run. The relay must be matched to the motor/pump.
Perhaps your motor shop could do that, I don't know how to match them, other than matching part numbers.

Dusty
 


Last edited by Dusty MI on Thu Jan 31, 2013 5:01 am; edited 1 time in total
Back to top
View user's profile
greygoat
Tractor Guru


Joined: 30 Dec 2007
Posts: 3582


Report to Moderator

PostPosted: Thu Jan 31, 2013 5:54 am    Post subject: Re: Electric Motor Starter Reply to specific post Reply with quote

I just got a new "SURPLUS CENTER" catalog in the
mail yesterday. They had new,(industrial surplus)
motor starters. Not being an electrical person,
I don"t know about brands, price, or value. Over
the years I"ve bought lots of hydraulic and
mechanical stuff there, with no problems!
 
Back to top
View user's profile
showcrop
Tractor Guru


Joined: 13 Dec 2000
Posts: 11616


Report to Moderator

PostPosted: Thu Jan 31, 2013 7:28 am    Post subject: Re: Electric Motor Starter Reply to specific post Reply with quote


As Bob says get a solid state switch put in I used to replace a lot of switches but then my motor guy found out about the solid state switches and he put those in for us. It is a pretty much permanent fix and pretty much one size fits all. He used "Synpac" brand. Call them and find out who in your area puts them in.
 
Back to top
View user's profile
NCWayne
Tractor Guru


Joined: 20 Jun 2007
Posts: 3950


Report to Moderator

PostPosted: Sat Feb 02, 2013 10:44 pm    Post subject: Re: Electric Motor Starter Reply to specific post Reply with quote

I can't say 100% for sure wether it would work or not, because any switch that would handle the current flow would work, for awhile. The life expectancy would be determinded, I believe, mainly by the time it took for the contacts to burn out. I say this because an A/C motor stater is designed with the contacts being somewhat of a snap action to reduce the burning of the contacts as they open and close. If the contactor your talking about doesn't have that snap action the contacts will burn out fairly quick in relation to the right kind.
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> Tool Talk All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

Powered by phpBB © 2001, 2005 phpBB Group

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters