Master Appliance UT-100Si Ultratorch Soldering Iron_Heat Tool - Manual (Page 5)

1. Set gas control lever to 3 and move On/Off lever to “ON”. In cold conditions, move gas lever
higher, in warm, lower.
2. Push ignition button all the way down slowly, holding in down position for 3 seconds after it
clicks. You may hear a whistling sound.
3. When catalyst inside of exhaust opening glows red, slowly release button.
4. If unit did not ignite, repeat.
5. To turn off, move On/Off lever to “OFF” position until it clicks.
Temperature can be changed by adjusting gas control lever.
Ignition Instructions
Use as a Soldering Iron or Heat Tool
All models come with the soldering tip pre-installed. To change tips, unscrew knurled nut,
drop out tip and drop in replacement tip.
As a soldering iron, heat conducts into tip. Touch tip to
work surface and apply solder. Use proper tip for type
of work being performed. Make sure hot air exhaust
points away from work surface.
As a heat tool, heated gas flows from the end of the
heat tip. Use the heated gas to heat, dry or shrink as
necessary. Tip temperatures can be varied by adjust-
ing the gas control lever.
To Replace Ejector
The ejector is where the
air/fuel mixture takes place.
Occasionally it may be
necessary to replace due
to clogging.
Unscrew the knurled nut and
remove the tip and tip hous-
ing. Disconnect ignition wire
by gently pulling lead wire
down and away from ignition
tube. Insert spanner wrench
into small hole in the ejec-
tor. While holding spanner
wrench stationary, loosen
locking hex nut above
ejector by using open end
wrench and turning counter
clockwise. Use spanner
wrench to remove ejector.
Replace ejector and tighten.
Mount burner by turning
clockwise onto ejector until
light tension is felt. Align insu-
lation tube in a straight line
with ignition wire. Tighten hex
nut with open end wrench
while holding ejector in place
with spanner wrench. Insert
lead wire into insulation tube.
Push ignition button to con-
firm sparking. Replace tip
and tip housing.