Bobcat Blown engine

[farmboy57]

Yes got it back couple days ago, had replaced bridge rectifier after calling Miller technical support to get wiring placement because the one on welder didn't have cut off corner. They told me what terminals to put wire numbers on but gave me order in reverse. Welding great again so the problem was...

[farmboy57]

Taking to Shop tomorrow, hopefully will be something simple....

[farmboy57]

This one has an Onan, not sure of hours will check when return home next week but I know in excess of 1000 hrs. Just looking possible backup for the aead 200le if can get it going. May consider selling both once running and invest in a Trailblazer....

[farmboy57]

I have access to a Bobcat approx.1999 year did not get the SN, but looking to replace engine with a suitable replacement if feasible. Would appreciate feedback on this before I purchase. Will get SN when I return home next week.

[farmboy57]

Yes, if I strike arc welder kicks up RPMs but only get small spark

[farmboy57]

Took a chance and replaced sr2 rectifier no luck. Checked power at brushes and get 4 volts at front, 13 volts at middle, 0 at rear. Took straps off resistors and cleaned still only 17 volts

[farmboy57]

Will check these items again tomorrow if get home in time. Never hurts to recheck, there was some rust on resistor tap, cleaned off but will recheck. Thanks for the suggestions.

[farmboy57]

RPM's are good, getting 18-20 volts on duplex receptacle at 1800 RPM and 18 volts on 115 volt receptacle in weld mode at 3000 RPM. What ever is wrong happened while not being used over six months. Has worked great over the 25 years I have had it.

[farmboy57]

Sn je760609

[farmboy57]

I have a AEAD 200LE was welding fine until sit under shelter about six months, started occasionally and run for short time. Went to do a welding job week ago and only get small spark when striking arc. Engine revs up but will not weld, check power output and only getting 18 - 20 volts. Brushes and...