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Discussion Starter · #1 ·
my partner has a customer with a ? 12V or 24V DC magnet
the entry placement for the power cord is on the side of the magnet
so it is constantly getting ripped out
the junction box inside has two studs to connect to the inner coils
the threads for those studs have finally become damaged
the owner wants to replace the studs
he has contacted a dealer, gotten the part and talked to them about what to do
this requires chipping out some solid poured resin or some such
my partner is apprehensive about the process, but agreed to do it

any thoughts suggestions, or other ???????
 

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Take your time, what does a new magnet cost? You have lots of leeway with what you end up charging, I wouldn't do it hourly, charge him what the job is worth.

Tim.
 

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Discussion Starter · #4 ·
as i said ..... my partner is doing this
he doesnt have a dremel,
at any rate if it chips really easy (they said) i personally would prefer that to avoid cutting anything you cant see
 

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When I worked on these they were a pain. We had small ones for moving steel plates not the large ones like at a junk yard. Maybe there is more room in them, if the studs are just stripped can you run a nut die down them and clean them up or next size down it.
 

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Discussion Starter · #7 ·
When I worked on these they were a pain. We had small ones for moving steel plates not the large ones like at a junk yard. Maybe there is more room in them, if the studs are just stripped can you run a nut die down them and clean them up or next size down it.
this is a small yard
the magnet is about 30" across
the jbox is about 4 x 8" and about 2.5 deep
about 4" of the eight is where the poured resin is

the owner already decided to replace the stud assy in the magnet
it is already ordered and on the way
 

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my partner has a customer with a ? 12V or 24V DC magnet
the entry placement for the power cord is on the side of the magnet
so it is constantly getting ripped out
the junction box inside has two studs to connect to the inner coils
the threads for those studs have finally become damaged
the owner wants to replace the studs
he has contacted a dealer, gotten the part and talked to them about what to do
this requires chipping out some solid poured resin or some such
my partner is apprehensive about the process, but agreed to do it

any thoughts suggestions, or other ???????
can you tell us the amperage you are dealing with?
 

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Discussion Starter · #15 ·
Magnets take a lot of abuse and do need to be replaced once in a while. The whole thing is buried in epoxy. Chipping it back usually ends up destroying the wiring you are trying to reach, or at least that's my luck. As mentioned it's probably time to replace.
the owner of the yard is aware of that.
he has been on the phone with someone that makes this replacement part and they say the epoxy is intentionally soft and not hard to remove
he is also aware this may not work out for various reasons.
he just wants to try before he buys a new magnet
 

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Another thing to watch out for. Everybody puts their meters on DC and measures voltage. That tells you the regulator is working. Few put it on AC…that measures ripple. If it’s a big number, you’ve got blown rectifier issues. These can easily burn up a magnet without blowing fuses.
 
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