Full Product Manual
98
All repairs and maintenance
recommended in this instruc-
tion manual must be per-
formed by a qualified repair
technician who is experi-
enced with the repair of elec-
tric tools, a qualified service
organization, or Master
Appliance Corp.’s Repair
Department.
Please contact Master’s
Customer Service Department
for genuine Master Appliance
replacement parts or for
repair service.
Repair Service Dept
877-250-1934
sales@masterappliance.com
www.masterappliance.com
WARNING: Always unplug
your tool before performing
any maintenance or repairs.
Use only identical Master
Appliance brand replacement
parts.
Motor Brushes
1) Unplug tool before remov-
ing brushes.
2) Inspect brushes regularly
(at least every 100 hours of
running time). If brushes
are less than 1/8" long,
replace them immediately.
3) Remove brushes one at a
time. To remove, unscrew
the brush cap located on
the side of the housing and
remove the brush-spring.
4) Always replace brushes in
sets of 2 to ensure equal
tension. If returning par-
tially used brushes, match
the curvature of the brushes
to the commutator.
5) To replace, insert new
brush-spring into hole and
screw on brush cap.
6) After second set of brushes
are worn down, replace-
ment of the armature may
be necessary. Return the
tool to Master Appliance
Corp. Repair Department
or a qualified service orga-
nization for service.
7) Always use original Master
Appliance Corp. replace-
ment parts.
Lubrication
The bearings are lubricated at
the factory and require no fur-
ther lubrication.
Cleaning
Unplug heat gun before
cleaning. To clean outside of
tool, use only a mild soap and
damp cloth. Do not use other
cleaning agents, turpentine,
gasoline, lacquer or paint
thinner, or other solvents that
may contain chemicals which
are harmful to plastics and
other insulating materials.
Never immerse tool in a liquid
or allow a liquid to enter
inside the tool. Make sure all
vents and openings are free
and clear of debris.
REPAIR AND MAINTENANCE INSTRUCTIONS
Bending and Forming
Plastics
Experiment with a piece of
scrap material first to develop
a proper technique. Place
plastic piece into a proper
holding fixture. Wave hot air
along the whole length of the
“Bend” line until plastic soft-
ens along that area. Bend
plastic to desired position.
Removing Old Putty
When removing putty from a
broken window, carefully
remove the broken glass first.
When removing putty from an
undamaged window, direct
the hot air stream away from
the glass to prevent cracking
due to thermal shock. It is
convenient to shield the glass
from the hot air with a large
putty knife. Wave the hot air
stream at putty until softened.
Remove with putty knife.
Speed Drying Parts
Parts and other materials can
be speed dried by waving the
heated air stream over the
work until dried.
Stretching, Shaping and
Installing Vinyl
Direct hot air stream at vinyl
section and wave heat gun in
a back and forth motion.
Stretch and shape until wrin-
kles are removed. DO NOT
aim at glass.
Defrosting Frozen Coils or
Pipes
Direct hot air stream at frozen
part and wave back and forth
until part is defrosted or
thawed.
Loosening Nuts and Bolts
Direct hot air stream at nut or
bolt to be loosened for a short
period of time. Heating the
nut or bolt will cause the metal
to expand. Remove the air
stream from work piece.
Loosen nut or bolt with proper
wrench.
If you have any questions
regarding your specific appli -
cation or use, feel free to call
our Customer Service Depart-
ment at 262-633-7791.
TYPICAL APPLICATIONS
(cont’d)
NOTE: Users should independently evaluate the suitability of the product for their application.