Anthony to answer your question "It does have only a 3-conductor cord. Should I change it to a 4-lead so it has the ground wire?"
FYI if wired correct ?? IT ALREADY HAS A GROUND WIRE. If its a straight 240 VAC Buzz Box AC Welder (NO 120 VAC used) it would have three leads, Two Hots L1 & L2 240 VAC Line to Line PLUS the third (Bare/Green) safety Equipment Grounding Conductor.
Assuming (No warranty cant say no specs or wiring diagram) its basically an isolation transformer (with no shorts or mis wiring) there would be no physical direct electrical connection of any of the two incoming hot wires to the case/frame of the welder. The welders hot and ground welding leads (secondary winding of the transformer) have the welding voltage across them NOT direct physical electrical connected (only the transformers inductive coupling) to the incoming 240 VAC Primary. The Bare/Green safety equipment grounding conductor should be bonded to the case/frame, that's easy to check with an ohm meter, third ground wire on plug should have low resistance continuity to the case/frame ...
I have owned and used those welders over 40 years and YES felt shock tingles even with a perfect working welder having no shorts
Hopefully some professional welders can respond and I bet neither you nor I are the only ones who have felt a shock using those welders
Thats NOT to say yours may not have a problem or has a short or is mis wired. If in doubt have it professionally tested !!!!!
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
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.