Hobbsy1000 Posted January 10, 2023 Share Posted January 10, 2023 Hopefully I’m in the right spot I’m new here. I have a crane that I bought at auction. I was told it’s a rainbow CM24. When I bought it the crane worked perfectly. About 3 days of use and now the claw will no longer shut. Other than the claw not shutting the machine functions properly. This is my first crane and I’m kind of at a loss. I checked the limit switches and they all seem to be fine. Any help would be appreciated. It would only let me put one picture if I can figure out how to add more I will add pictures of the boards. Thanks in advance. Link to comment Share on other sites More sharing options...
orsd Posted January 10, 2023 Share Posted January 10, 2023 http://www.nentraining.com/uploads/3/7/9/7/37973463/thebook.pdf 1 Link to comment Share on other sites More sharing options...
gumball guy Posted January 10, 2023 Share Posted January 10, 2023 8 hours ago, Hobbsy1000 said: Hopefully I’m in the right spot I’m new here. I have a crane that I bought at auction. I was told it’s a rainbow CM24. When I bought it the crane worked perfectly. About 3 days of use and now the claw will no longer shut. Other than the claw not shutting the machine functions properly. This is my first crane and I’m kind of at a loss. I checked the limit switches and they all seem to be fine. Any help would be appreciated. It would only let me put one picture if I can figure out how to add more I will add pictures of the boards. Thanks in advance. Generally when the claw stops closing it means that the coil is not getting power. Read the manual orsd posted and check your fuses. If the fuses all check out ok then check your connections to the coil and verify that you are getting juice to the coil with a meter. If all of that checks out it points to a bad coil in all probability. Link to comment Share on other sites More sharing options...
John15 Posted January 14, 2023 Share Posted January 14, 2023 Check the ohms of the claw coil, about 24 ohms. Disconnect claw coil use meter to check ohms. I've had many that the wire going to coil breaks. Link to comment Share on other sites More sharing options...
Hobbsy1000 Posted January 14, 2023 Author Share Posted January 14, 2023 Coil reads 38 ohms, when checking from the coil plug. Would that make it bad? Link to comment Share on other sites More sharing options...
John15 Posted January 15, 2023 Share Posted January 15, 2023 Should be in range, I'll check couple mine tomorrow. Can you manually close claw, does the coil smell burned? May be open wire in the harness. Link to comment Share on other sites More sharing options...
Hobbsy1000 Posted January 15, 2023 Author Share Posted January 15, 2023 (edited) I checked the coil it does have a burnt rubber type smell. Also, yes I can manually shut it however it opens back up. Edited January 15, 2023 by Hobbsy1000 Link to comment Share on other sites More sharing options...
John15 Posted January 16, 2023 Share Posted January 16, 2023 I checked coil on mine today 37 ohms. Take coil out of claw assembly see if looks burned. Link to comment Share on other sites More sharing options...
Hobbsy1000 Posted January 16, 2023 Author Share Posted January 16, 2023 I looked at it and it appeared fine. I was going to swap some limit switches to rule that out. I tried to drop the claw and move the coil wire to see if there was a break and I could bet it to connect and it still didn’t shut. Link to comment Share on other sites More sharing options...
John15 Posted January 17, 2023 Share Posted January 17, 2023 Can you check to see if you're getting voltage to the coil? I've been working on one where I would get an intermittent 0.1 error, claw up switch, the connector from board to gantry came off so I suspect it was barely making connection just something else to check. Link to comment Share on other sites More sharing options...
Hobbsy1000 Posted January 17, 2023 Author Share Posted January 17, 2023 Probably a stupid question but I would just unplug the claw/coil then move the claw/gantry and drop it right? Or is there a different way Link to comment Share on other sites More sharing options...
John15 Posted January 17, 2023 Share Posted January 17, 2023 Correct Link to comment Share on other sites More sharing options...
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