Mike_
Cast Iron
- Joined
- Dec 3, 2010
- Location
- Kansas City KS
I'm having some serious wiring problems with this dang surface grinder
It worked perfectly fine about two weeks ago, and as of yesterday it just wouldn't turn on. I just sort of assumed that it had something to do with a storm or something since we did loose power quite a bit around here the last few weeks.
So I started troubleshooting (aka, poking things with a multimeter in a random fashion.)
First, I found a contactor that had welded itself open. The plastic surrounding the coil melted and pooled in such a way that kept the thing from, well, contacting. I sort of cleaned the plastic up a bit to get it to engage and disengage properly and as far as I know it is working properly. (continuity where there should be, none when there shouldn't be any. 8 ohms across the coil, no shorts from what I can see...)
Now it has started blowing fuses, there are three little 1A glass fuses in the cabinet and one will pop every time the breaker is kicked on. This wasn't happening before I "fixed" the contactor.
I'm guessing that the fuses are for the control, but there is another fuse in the control box as well as one on the circuit board itself. I can't see anything out of the ordinary in the control box, though it does look as if someone has done some poking around with an iron at some point.
Anyway, has anyone ever had any trouble like this? Any tips as to where I should start looking?
Also, if anyone has a copy of the manual for this thing around I could really use a few copies of the wiring diagram! (or at least tell me what that dang fuse is on!)
Thanks guys!
It worked perfectly fine about two weeks ago, and as of yesterday it just wouldn't turn on. I just sort of assumed that it had something to do with a storm or something since we did loose power quite a bit around here the last few weeks.
So I started troubleshooting (aka, poking things with a multimeter in a random fashion.)
First, I found a contactor that had welded itself open. The plastic surrounding the coil melted and pooled in such a way that kept the thing from, well, contacting. I sort of cleaned the plastic up a bit to get it to engage and disengage properly and as far as I know it is working properly. (continuity where there should be, none when there shouldn't be any. 8 ohms across the coil, no shorts from what I can see...)
Now it has started blowing fuses, there are three little 1A glass fuses in the cabinet and one will pop every time the breaker is kicked on. This wasn't happening before I "fixed" the contactor.
I'm guessing that the fuses are for the control, but there is another fuse in the control box as well as one on the circuit board itself. I can't see anything out of the ordinary in the control box, though it does look as if someone has done some poking around with an iron at some point.
Anyway, has anyone ever had any trouble like this? Any tips as to where I should start looking?
Also, if anyone has a copy of the manual for this thing around I could really use a few copies of the wiring diagram! (or at least tell me what that dang fuse is on!)
Thanks guys!