I've got a similar unit (made in Italy). Probably made by the same
company. Mine is called an ASTRO 120. The combination/permutations of the
switches (4) change voltage delivery. The important thing is making sure
the wire feed selector is not to fast for the gauge and heat or else you
heat the metal and the wire goes through making holes. I would definetly
experiment on tailpipe repair. The old tailpipe is probably not uniform
in thickness or integrity.. - I repaired tailpipe with this machine too.
One other thing. Make sure you have a good 115/20amp voltage source. If the
voltage drops the machine heats too fast and the weld is less than nominal.
Remember it has a small duty cycle about 10%. i.e. I think this means that
for a one minute period (60sec) you can "only" weld for 6secs- resting for
the balance..
Mordy
Cacoethes Loquendii
___________________________ Reply Separator _________________________________
Subject: Operation of Handymig SIP welding unit
Author: Bob Douglas <b-douglas@ti.com> at INTERNET
Date: 3/7/97 11:45 PM
I've been loaned a light duty MIG welder to make some minor tailpipe repairs.
Problem is that there is no instruction manual and the owner can't remember
what the switches are for. It's labeled Handymig SIP and appears to have been
made in Italy. There are 4 controls:
1. "On"/"Off" rocker switch (duh..)
2. What appears to be a wire seed control dial
3. "Maximum"/"Minimum" rocker switch
4. "1"/"2" rocker switch
Any ideas on the purpose and use of switches 3 and 4?
I plan to use it gasless. Any advice on what wire to buy, welder set-up, and
use will be much appreciated.
Thanks and regards, Bob Douglas
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