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Hey Guys new to the forum and have received alot of great information from here!
First off I have a I believe is a 1988 Miller Aead 200le
Serial # jh307685
So this is a new to me welder given to me by a family friend. The reason he quit using it is he explained that it would not come to weld rpm when trying to weld. It has been sitting for a good while.
So I got it running great after a carb clean a few jets were stopped up. Gave it a service too.
Then I started to tackle why it would not come to weld rpm.
He put a new throttle solenoid but it did not fix the problem so I did al ot of reading on here and checked over items I will list out
Checked and adjusted linkages on the solenoid
Idle control board # 049 404 ( replaced d55 and d56 diodes) they were blown and check others with voltage meter
not sure why they were, but I followed the wires to look for a ground short with no issues.
Changed CR2 solenoid for the heck of it ,cheap try.
I get power fine out of the 120 outlets and 60 hz
im sure there are a few things Iam missing to list
So when it starts i put the key switch to rabbit and the switch to weld speed it will sometimes pull it back for about a second then go back to idle rpm
If i take the linkage for the solenoid to the governor off and I do the same thing it will lock back until I flip the switch back to auto idle it will release after about 10 sec.
My question is why would it seem to work fine when taken off the linkage? Is the throttle solenoid week ? wrong one? He doesnt have the original so I cant try that. Also Im open to try anything else! Sorry for the long post just trying to explain it best I can!
First off I have a I believe is a 1988 Miller Aead 200le
Serial # jh307685
So this is a new to me welder given to me by a family friend. The reason he quit using it is he explained that it would not come to weld rpm when trying to weld. It has been sitting for a good while.
So I got it running great after a carb clean a few jets were stopped up. Gave it a service too.
Then I started to tackle why it would not come to weld rpm.
He put a new throttle solenoid but it did not fix the problem so I did al ot of reading on here and checked over items I will list out
Checked and adjusted linkages on the solenoid
Idle control board # 049 404 ( replaced d55 and d56 diodes) they were blown and check others with voltage meter
not sure why they were, but I followed the wires to look for a ground short with no issues.
Changed CR2 solenoid for the heck of it ,cheap try.
I get power fine out of the 120 outlets and 60 hz
im sure there are a few things Iam missing to list
So when it starts i put the key switch to rabbit and the switch to weld speed it will sometimes pull it back for about a second then go back to idle rpm
If i take the linkage for the solenoid to the governor off and I do the same thing it will lock back until I flip the switch back to auto idle it will release after about 10 sec.
My question is why would it seem to work fine when taken off the linkage? Is the throttle solenoid week ? wrong one? He doesnt have the original so I cant try that. Also Im open to try anything else! Sorry for the long post just trying to explain it best I can!
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