Re: More on the Komatsu excavator

Posted by NCWayne on October 18, 2015 at 17:00:04 from (173.188.169.54):

In Reply to: More on the Komatsu excavator posted by old on October 18, 2015 at 16:34:27:

I think I'm missing something in what your saying. Here's your post, with my comments on what I'm not understanding.

So got a chance to look at it today and even got it to start but took 2 people to do so. It is a Komatsu PC200LC. What I did to get it to start was the guy held the ignition in the start position and I jumped the small terminal on the starter mounted solenoid to the big stud that goes to the starter motor. ***********There may be two small terminals on the solenoid. One gets power from the key switch, and is used to power the solenoid to make it engage. The other, if it has another, is powered up through the solenoid when it pulls in, just as the starter motor does. The two big posts are usually more or less interchangeable. In other words, it doesn't really matter which is connected to the battery, and which is connected to the starter motor. You should be able to jump from the big battery post on the solenoid to the small S post on the solenoid to make the starter work.************************

I did try the small terminal to the battery cable one and that did not work but the other way around it did. *********This is where I am really confused. Are you saying you did what I just mentioned above and it didn't work?*********

Makes me think that maybe that solenoid has a battery post and starter post and maybe the 2 are 180 out so if I took the 2 and switched them it might work right. ***************** Again, I'm still confused here, but if there are two small terminals on the solenoid and one isn't working to start, but the other is, then it sounds like the two posts were probably different on that solenoid than on the original. I've run into this quite a few times, and it can often be a PITA when the wires are routed one way, and the terminals wound up another. If your terminals were changed, and who ever took the starter off didn't notice the difference when putting it back on, then that could be a problem. The only thing is it would not work at all with the two swapped, so it it had been working and quit, then this wouldn't be an issue. *******************

So am I thinking right or is it something else??
By the way measured voltage again today. After charging the batteries. . 12.6 on one and 12.35 on the other and 24.9 on them both. So what do you guys think do I switch the 2 cables on that solenoid??
Thanks

*********************************Post back when you get a chance. If you've got any way to post some pics of exactly what your dealing with, it would make knowing what was going on a bit easier*****************************

Replies:

• Re: More on the Komatsu excavator old 17:09:51 10/18/15 (0)

Add a Reply! You must be Logged In to Post Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Optional Video Title: Optional Video URL: Advanced Posting Options Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.   Advanced Posting Tools   Upload Photo  Select Gallery Photo  Attach Serial No List  Return to Post  Upload Photos/Videos Choose Files from your local computer Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. 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.

TRACTOR PARTS	TRACTOR MANUALS

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 ]