Have your hvac tech friend put a small pressure in the condenser (1-2
psi-where goggles) and heat. It may push out the slump. Then you can remove
pressure and braze again. You can bypass any line in a condenser provided
you look closely an verify all other passes are in the loop. However you
will not have as much condenser as you once had. This may mean you clean the
condenser or filter more often or it don't cool as well. If it is copper you
can buy fittings to fabricate a 180 degree bend if you have room for it. The
idea is to salvage as much condenser as possible. I have messed up many
condensers trying to repair them and most of the time have been able to
remove the slump of solder and try again. If copper........try dynaflow
(available hvac/r distributors) it fills nicely. I have filled 1/4" holes by
filling in around the hole........letting it cool ......fill some more etc
until it is fixed. Blow compressed air or something thru, when you are
finished to verify you did not plug it.
Good Luck
Lyndell


"Karl Townsend" wrote in message
...
The AC broke in my John Deere. AC is needed a bit more in a tractor
cause you get A LOT of heat off the machine, the cab is all glass, and
one little window to open. Easily 20 degrees over outside.

My neighbor is an HVAC tech. We found a hole in the condenser caused
the failure. First braze attempt still had a small leak. The second
attempt, the braze slumped into the line and party blocked it. Now I'm
FUBAR.

Somehow, I need to cut this braze out and weld a patch over it. Or
pull a 180 U off of one end and bypass this run. It is the first top
run on the condenser. Anyone successfully done either operation?

I looked for generic replacements. John Deere isn't listed. No joy
trying to find one based on length and width. For those that don't
know, John Deere selected their tractor color because of the amount of
green you need to buy a part. Anybody know of a place that will supply
a condenser that fits within a certain height and width? I do know a
machinist that can build a bracket.

Karl