Master VT-752C, VT-750C Instruction Manual
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VARITEMP® HEAT GUN
Instruction Manual
Mode d’emploi
Manual de instrucciones
Assembled in U.S.A. using foreign and domestic components
Assemblé aux Etats-Unis en utilisant des composants étrangers
et nationaux
Ensamblado en EE.UU. utilizando componentes nacionales y extranjeros
Please read, understand and keep this manual
for future reference.
Lire et bien comprendre les instructions contenues
dans ce manuel et les conserver comme référence.
Por favor lea, comprenda y guarde este manual para
futura referencia.
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Description & Introduction
Temperature (Max.) Velocity
Models °F °C Volts Amps Watts F/M CFM
VT-750C 1000 540 120 14.5 1740 2200 17
VT-752C 750 400 230 7 1610 2800 21
The Varitemp® Heat Gun is a
heavy-duty, Industrial-quality, general-purpose heat gun. High temperature Industrial jobs are done
faster with this heat gun, because
our MASTER models have higher
power and air flow ratings.
Your Varitemp
®
Heat Gun is
equipped with an electronic stepless temperature control dial which
regulates the current going through
the heating element. This allows
outlet temperatures to be set from
ambient to a maximum of 1000°F.
Power ratings go up to 1740 watts
(120 volts) and 1610 watts (230
volts).
Heat Guns are a source of
extremely high temperature
flameless heat (up to 1000°F/
540°C). As with other products
which generate extremely high
temperatures, regardless of your
specific application, extreme care
and caution should be observed
when using this product.
Therefore, we recommend that
you pay particular attention to the
safety instructions which we
have provided for your protection.
SpecificationS
Size 8"L x 5-1/4"W x 9-1/2”H
Nozzle opening .......................................................1-3/16" dia.
Nozzle diameter ........................................................ 1-1/2" dia.
Nozzle shield length .......................................................4-3/16”
Cord length ................................................................6 Ft.
Net weight .............................................................3-1/2 Ibs.
120V models ..............................................................60 Hz
230V models ...........................................................50/60 Hz
WARNING: THIS PRODUCT IS A
SOURCE OF VERY HIGH
TEMPERATURE FLAMELESS HEAT.
AS WITH ANY ELECTRICAL TOOL,
WHEN USING HEAT TOOLS,
ALWAYS FOLLOW SAFETY
PRECAUTIONS TO REDUCE THE
RISK OF FIRE, ELECTRIC SHOCK
OR PERSONAL INJURY.
1) Read and understand this
instruction manual before using
this product. Save this manual
for future reference.
2) WARNING: With a heat gun, as
with all other heat tools, keep a
fire extinguisher handy and
observe all sensible fire precautions.
We do not recommend using
this heat gun on hollow surfaces
such as outdoor siding, walls,
soffits, panels and partitions, etc.
These areas often contain flammable materials such as dust,
wood chips, insulation, rodent
nests and other debris which
could accidentally ignite.
Your heat gun is best used for
stripping paint from solid woodwork with ins and outs such as
solid interior trim, mouldings,
turnings, doors, balusters and
porch trim, etc.
When stripping paint, always
keep the heat gun moving in a
continuous back and forth
motion. Stopping or pausing too
long in one spot could ignite the
surface you are working on or
the area behind it. See our Paint
Stripping Instructions for more
information.
3) Do not breathe or swallow lead
based paint in any form. Many
old homes and other buildings
contain lead based paint. Dust,
scrapings, residues and vapors
of lead based paint are
extremely poisonous. Prevent
possible lead poisoning when
stripping this type of paint by
using adequate ventilation (such
as a window fan in the exhaust
mode), and keeping a clean
work area. When dust or vapors
are present, use a respirator
designed to filter lead. Move
work outside when possible.
Failure to follow adequate safety
precautions when working with
lead based paint could result in
lead poisoning. See our Paint
Stripping Instructions for more
information.
4) WARNING: to reduce the risk of
fire or electric shock, do not
expose heat guns to rain or
moisture. Store indoors. Connect
to grounded outlet only.
5) Do not use plug adaptors or
remove the ground prong from
the plug. This tool is equipped
with a 3-prong plug and a 3-wire
grounding system. Connect to
properly grounded outlets only.
6) Use heat gun only on adequately rated circuits to avoid
overheating of elec trical systems.
7) Varitemp
®
heat guns can produce up to1000°F (540°C) of
flameless heat out of the nozzle.
Do not direct this hot air stream
at your clothing, hands or other
body parts. Do not use as a hair
dryer.
8) Do not touch nozzle opening or
nozzle shield until cool. When in
“hot” mode, extreme heat is
generated at those areas. Always
hold tool by the handle or use
permanently attached stand.
9) Run on “cold” before turning off.
The nozzle and shield require
approximately 3 minutes to
become cool to the touch.
10) Do not touch work surface with
nozzle. Keep nozzle face at
least 1" away.
11) Keep a clean work area. Messy
or cluttered work areas invite
accidents or injury.
12) Keep away from children or
persons with reduced physical,
sensory or mental capabilities,
important Safety inStructionS
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Important Safety Instructions (cont’d)
or lack of experience and
knowledge. All visitors should
be kept at a safe distance from
the work area. Do not let visitors touch the tool or extension
cord.
13) Use tool in a well-ventilated
area. Do not use near flammable liquids or in an explosive
environment (where fumes,
gases or dust are present).
14) Remove all highly flammable
materials and other debris from
the work area.
15) Wear safety glasses at all
times.
16) When using an extension cord,
use only a 3-wire grounded cord
with a minimum of 14 gauge
capacity. We recommend they
be listed by Under writers
Laboratories (UL) in the U.S.A.
or (CSA) Canadian Standards
Association in Canada and be
suitable for outdoor use. Cords
marked for outdoor use are also
suitable for indoor use.
17) Don’t abuse cordset. Never
yank by cord to remove from
electrical outlet or carry tool by
cord.
18) Don’t remove adjustable stand.
When not hand held, place tool
on a level surface. Position
cordset so it does not cause
tipping.
19) Keep a fully-charged fire extinguisher close at hand.
20) Do not leave heat gun unattended while running or cooling
down.
21) Stay alert. Do not operate tool
when you are tired. Use common sense and watch what you
are doing.
22) Store properly. Do not store
while hot. Store in a dry, high or
locked-up location. Keep out of
the reach of children.
23) WARNING: This product, when
used for soldering and similar
applications, can expose you
to LEAD, which is known to the
State of California to cause
cancer and birth defects and
other reproductive harm. For
more information go to www.
P65Warnings.ca.gov
Your Varitemp® Heat Gun is a
heavy-duty, industrial-quality heat
gun. You can do more heating jobs
faster with this heat gun because
of its high power and air flow ratings.
This product provides a fast flow of
heated air for applications such as
activating adhesives, bending and
forming plastics, curing epoxies,
deburring plastics, defrosting frozen coils, drying negatives and
parts, heating solids and liquids,
loosening nuts and bolts, removing
floor tiles and putty, repairing vinyl,
shrinking tubing and packaging,
softening materials and stripping
paint. It's your dependable answer,
“Wherever a fast, portable heat is
the need.”
The proper amount of heat for each
application is dependent upon the
adjustment of the heat adjustment
control, the distance of the nozzle
opening from the work surface and
length of time that heat is applied
to the work surface.
Before performing an application,
we recommend that you experiment with a piece of scrap material. Use care in approaching the
work until you find the proper combination of heat adjustment, distance from the work surface and
heat application time.Use a gentle
back and forth motion when applying heat unless it is found that a
concentrated heat is desired.
To Operate Heat Gun
1) Plug heat gun into properly rated
outlet.
2) Move rocker switch to “Hot”
position. Turn heat control to
desired setting. Heat gun will
come up to full operating temperature.
3) Adjustable stand is provided to
allow nozzle to be rotated from
almost horizontal to vertical position.
4) To turn heat gun off after use,
move switch to “COLD” position.
Run on cold for approximately
three minutes. This will allow the
heat gun to cool down and the
nozzle to become cool to the
touch.
5) Move switch to “OFF” position.
operating inStructionS
When heat gun is used in an
enclosed container, such as a shrink
tunnel or special enclosure, ambient
air must be allowed to pass into the
heat gun and there must be an outlet
of equal size for the heated air to
pass out of the enclosure also. Total
enclosure will cause damage or possible failure to the heat gun due to
the extreme heat generated.
typical applicationS
How to Strip Paint
In addition to many other applications, stripping paint has become a
popular use for your Varitemp
®
Heat Gun. Because of its higher
power and airflow ratings many
professional restoration and renovation contractors recognize it as
the tool of choice for tough paint
stripping jobs.
Paint Stripping Safety
Instructions
1) WARNING: With a heat gun, as
with all other heat tools, keep a
fire extinguisher handy and
observe all sensible fire precautions.
We do not recommend using this
heat gun on hollow surfaces
such as outdoor siding, walls,
soffits, panels and partitions, etc.
These areas often contain flammable materials such as dust,
wood chips, insulation, rodent
nests and other debris which
could accidentally ignite.
Your heat gun is best used for
stripping paint from solid woodwork with ins and outs, such as
solid interior trim, mouldings,
turnings, doors, balusters and
porch trim, etc.
When stripping paint, always
keep the heat gun moving in a
continuous back and forth
motion. Stopping or pausing too
long in one spot could ig nite the
surface you are working on or the
area behind it.
2) Do not breathe or swallow lead
based paint in any form. Many
old homes and other buildings
contain lead based paint. Dust,
scrapings, residues and vapors
of lead based paint are extremely
poisonous. Prevent possible lead
poisoning when stripping this
type of paint by using adequate
ventilation (such as a window fan
in the exhaust mode), and keeping a clean work area. When dust
or vapors are present, use a respirator designed to filter lead.
Move work outside when possible.
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Typical Applications (cont’d)
Failure to follow adequate safety
precautions when working with
lead based paint could result in
lead poisoning. See our Paint
Stripping instructions for more
information.
3) Keep away from chemical paint
strippers which can ignite or
release harmful vapors.
4) Use adequate ventilation (such
as a window fan in the exhaust
mode) and keep your work area
clean.
5) Wear gloves and safety glasses
at all times.
6) Keep a fully charged fire extinguisher close at hand.
7) Stay alert, watch what you are
doing, and use common sense.
IMPORTANT SAFETY
INSTRUCTIONS
READ THESE INSTRUCTIONS
WARNING: Hidden areas such as
behind walls, ceilings, floors, soffit
boards, and other panels may contain flammable liquids that could be
ignited by the hot air gun when
working in these locations. The ignition of these materials may not be
readily apparent and could result in
property damage and injury to persons. Do not use if in doubt about
this hazard. When working in these
locations, keep the hot air gun moving in a back-and-forth motion.
Lingering or pausing in one spot
could ignite the panel or the material behind it.
Paint Stripping
WARNING: Extreme care should be
taken when stripping paint. The
peelings, residue and vapors of
paint may contain lead, which is
poisonous. Any pre-1977 paint may
contain lead and paint applied to
homes prior to 1950 is likely to contain lead. Once deposited on surfaces, hand to mouth contact can
result in the ingestion of lead.
Exposure to even low levels of lead
can cause irreversible brain and
nervous system damage; young
and unborn children are particularly
vulnerable.
Before beginning any paint removal
process you should determine
whether the paint you are removing
contains lead. This can be done by
your local health department or by
a professional who used a paint
analyzer to check the lead contact
of the paint to be removed. LEAD-
BASED PAINT SHOULD ONLY BE
REMOVED BY A PROFESSIONAL AND SHOULD NOT BE
REMOVED USING A HOT AIR
GUN
Persons removing paint should follow these guidelines:
1) Move the work piece outdoors. If
this is not possible, keep the
work area well ventilated. Open
the windows and put an exhaust
fan in one of them. Be sure the
fan is moving the air from inside
to outside.
2) Remove or cover any carpets,
rugs, furniture, clothing, cooking
utensils and air ducts.
3) Place drop cloths in the work
area to catch any paint chips or
peelings. Wear protective clothing such as extra work shirts,
overalls and hats.
4) Work in one room at a time.
Furnishings should be removed
or placed in the center of the
room and covered. Work areas
should be sealed off from the
rest of the dwelling by sealing
doorways with drop cloths.
5) Children, pregnant or potentially
pregnant women and nursing
mothers should not be present in
the work area until the work is
done and all cleanup is complete.
6) Wear a dust respirator or a dual
filter (dust and fume) respirator
mask which has been approved
by the Occupational Safety and
Health Administration (OSHA),
the National Institute of Safety
and Health (NIOSH), or the
United States Bureau of Mines.
These masks and replaceable
filters are readily available at
major hardware stores. Be sure
the mask fits. Beards and facial
hair may keep masks from sealing properly. Change filters
often. DISPOSABLE PAPER
MASKS ARE NOT ADEQUATE.
7) Use caution when operating the
hot air gun. Keep the hot air gun
moving as excessive heat will
generate fumes which can be
inhaled by the operator.
8) Keep food and drink out of the
work area. Wash hands, arms
and face and rinse mouth before
eating or drinking. Do not smoke
or chew gum or tobacco in the
work area.
9) Clean up all removed paint and
dust by wet mopping the floors.
Use a wet cloth to clean all walls,
sills and any other surface where
paint or dust is clinging. DO NOT
SWEEP, DRY DUST OR
VACUUM. Use a high phosphate
detergent or trisodium phosphate (TSP) to wash and mop
areas.
10) At the end of each work session put the paint chips and
debris in a double plastic bag,
close it with tape or twist ties,
and dispose of properly.
11) Remove protective clothing
and work shoes in the work
area to avoid carrying dust into
the rest of the dwelling. Wash
work clothes separately. Wipe
shoes off with a wet rag that is
then washed with the work
clothes. Wash hair and body
thoroughly with soap and
water.
SAVE THESE INSTRUCTIONS
Stripping Paint
1) To strip paint, turn unit on and
hold it about 1 inch from the surface being stripped. Proper distance and speed of stripping
should be determined by experience. It is an advantage to hold
the gun further from the surface
and to move forward slowly.
Slower speed is compensated
by the wider softened areas.
Heat will also penetrate deeper.
2) Outlet temperature can be regu-
lated by the heat control. At
maximum, temperature is about
500°F/260°C at a distance of 1
inch from the nozzle. Experiment
to see which setting gives the
best results with the paint you
are stripping.
3) As paint begins to blister and
bubble, move gun slowly in a
steady progression across the
surface. Follow closely with a
scraping knife (a 2-inch wall
scraper works best) to scrape
the loosened paint. Preheat
scraper as you are heating the
paint surface. This increases the
speed of paint stripping.
a. Removal of paint by using
heat is based on the fact that
all organic paints soften at
elevated temperatures. When
soft, the paint can be easily
lifted off without damage to
the surface.
b. When stripping paint from
grooves in moldings, you can
devise your own scraping
tools. Old screwdrivers with
ground-down blades and
linoleum knives are often
used.
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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 wrinkles 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.
Typical Applications (cont’d)
4) When the task is completed,
move rocker switch to “Cool”
position. Allow blower to operate
for a few minutes on cool.
Shrinking Tubing
Use stand to free both hands. Slide
tubing over area to be insulated.
Place in air stream and move with
a side to side motion until tubing
has shrunk. Remove from air
stream.
Shrinking Packaging
After shrink wrap has been sealed
around product, poke a small hole
in it to allow trapped air to escape.
Then wave heated air stream back
and forth across package until
shrink wrap has evenly shrunk.
Removing Floor Tile
Direct heated air stream at tile to
be removed in a back and forth
motion. This will soften the adhesive backing. Place putty knife
under tile and lift to remove.
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.
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.
NOTE: Users should independently evaluate the suitability of the product for their application.
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 softens
along that area. Bend plastic to
desired position.
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Repair And Maintenance Instructions
All repairs and maintenance recommended in this instruction manual must be performed by a
qualified repair technician who is
experienced with the repair of electric 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
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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 removing
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 brushspring.
4) Always replace brushes in sets
of 2 to ensure equal tension. If
returning partially used brushes,
match the curvature of the
brushes to the commutator.
5) To replace, insert new brushspring into hole and screw on
brush cap.
6) After second set of brushes are
worn down, replacement of the
armature may be necessary.
Return the tool to Master
Appliance Corp. Repair
Department or a qualified service organization for service.
7) Always use original Master
Appliance Corp. replacement
parts.
Lubrication
The bearings are lubricated at the
factory and require no further 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.
one year full Warranty
apply if the heat tool has been misused, abused, tampered with or
altered.
At the end of the warranty period,
Master Appliance shall be under
no further obligation, expressed or
implied. Master Appliance
assumes no responsibility for, and
this warranty shall not cover, any
incidental or consequential damages from any defect in products
or their use.
This warranty gives you specific
rights. You may also have other
rights which may vary from state to
state. Warranty information is
included within the Instruction
Master Heat Tools are carefully
tested and inspected before being
shipped from the factory.
We warrant our products to be free
from defects in materials and workmanship, under normal use and
service, for one year from date of
purchase. In the event of a defect
in materials or workmanship we will
either repair or replace, at our
option, without charge any part
which in our judgement shows evidence of such defect.
Warranty does not apply to wearable items such as attachments or
heating elements, which require
periodic replacement, nor does it
Manual for each product or may be
obtained by contacting Master’s
Customer Service Department.
Master Appliance Corp.
2420 18th Street
Racine, Wisconsin 53403
U.S.A.
Phone 262-633-7791
800-558-9413 (USA)
Fax 262-633-9745
sales@masterappliance.com
www.masterappliance.com
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