10. Switch the air selector back and forth between air and nitro-
gen, making sure that the yellow lights indicate which side is
fl
owing, that the green pressure safe light is glowing on both
sides, and that you have
fl
ow from the torch on both sides.
Leave on air at all
mes except when you’re actually welding.
13. Watch the instruc
onal DVD to learn how to use the
plas
c welder. Prac
ce on a scrap bumper
fi
rst before
you do any actual repairs.
CAUTION - you must
ALWAYS
maintain
air
fl
ow through the welder while it is hot
or the power is on. Failure to do so will
burn out your hea
ng element. Urethane
Supply Company
DOES NOT WARRANT
the
hea
ng element because its life is com-
pletely under YOUR control.
Page 3
CAUTION - you must use CLEAN, DRY,
OIL-FREE air for the hot air welder. Water
and/or oil inside the hea
ng element will
dras
cally shorten its life span.
9. Adjust
fi
ne
fl
ow control on the nitrogen (right)
side so the
fl
ow meter reads
15 LPM
. You should
feel nitrogen gas coming from the torch.
11. Turn the temperature control dial to the proper level for the plas
c you are working with. Let the welder warm up for
fi
ve minutes before use.
12. Do NOT leave on heat level 7 or 8 for any length of
me because you will overheat the element! These
se
ngs are appropriate for higher air
fl
ow se
ngs
and thicker plas
cs., NOT for thin plas
cs like used
for most automo
ve parts.
NO!
Too Hot!
