Master Heat Gun
®
Designers and Manufacturers
of Heat Tools for Industry
Fabricants d’outils chauffants pour
usages industriels
Diseñadores y fabricantes de
herramientas térmicas para la industria
Instruction Manual
Mode d’emploi
Manual de instrucciones
Made in U.S.A.
Fabriqué aux États-Unis
Hecho en EE.UU.
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.
Description & Introduction
The Master 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 MAS-
TER models have higher
power and air flow ratings.
Power ratings go up to
1000°F/540°C at 1740
watts (120 volts) and
1000°F/540°C at 2160 watts
(220/240 volts).
Air flow ratings are 3000 FPM
avg. air velocity and 23 CFM
avg. air volume. The combina-
tion of these factors means
high performance for the end
user. Use the Master Heat
Gun for many jobs “wherever
a fast, portable, flameless
heat is the need.”
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 tempera-
tures, 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.
Avg. air velocity
. . . . . . . . . 3000 FPM at ambient
Avg. air volume
. . . . . . . . . . . 23 CFM at ambient
Net weight
. . . . . . . . . . . . . . . . . . . . . . . 3-1/2 Ibs.
120V models
. . . . . . . . . . . . . . . . . . . . . . . . 60 Hz
220-24W models.
. . . . . . . . . . . . . . . . . . 50/60 Hz
Nozzle shield
. . . . . . . . . . . . . . . . . . . . . 4-3/16” L
Cord length
. . . . . . . . . . . . . . . . . . . . . . . . . 6 Ft. L
All 120V models are UL listed except HG-501A-C & HG-751A-C which are CSA certified.
Temperature Range
Models
HG-201A
HG-202A
HG-301A
HG-302A
HG-501A
*HG-501A-C
*HG-501A-D
HG-502A
*HG-751A-C
HG-751B
HG-752A
°F
200-300
200-300
300-500
300-500
500-750
500-750
500-750
500-750
750-1000
750-1000
750-1000
°C
93-150
93-150
150-260
150-260
260-400
260-400
260-400
260-400
400-540
400-540
400-540
Volts
120
220/240
120
220/240
120
120
120
220/240
120
120
220/240
Amps
5
3
12
6
14
14
12
7
18
14.5
9
Watts
600
600
1440
1440
1680
1680
1500
1680
2160
1740
2160
*Available in Canada only.
2
Important Safety Instructions
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 extin-
guisher 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 acciden-
tally ignite.
Your heat gun is best used
for stripping paint from
solid
woodwork with ins
and outs such as solid inte-
rior trim, mouldings, turn-
ings, 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 infor-
mation.
3) Do not breathe or swallow
lead based paint in any
form. Many old homes and
other buildings contain lead
based paint. Dust, scrap-
ings, residues and vapors
of lead based paint are
extremely poisonous.
Prevent possible lead poi-
soning when stripping this
type of paint by using ade-
quate 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 prop-
erly grounded outlets only.
6) Use heat gun only on ade-
quately rated circuits to
avoid overheating of elec-
trical systems.
7) Master heat guns can pro-
duce up to1000°F (540°C)
of flameless heat out of the
nozzle. Do not direct this
hot air stream at your cloth-
ing, hands or other body
parts. Do not use as a hair
dryer.
8) Do not touch nozzle open-
ing 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 turn-
ing off. The nozzle and
shield require approxi-
mately 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.
All visitors should be kept
at a safe distance from the
work area. Do not let visi-
tors touch the tool or
extension cord.
13) Use tool in a well-venti-
lated area. Do not use
near flammable liquids or
in an explosive environ-
ment (where fumes, gases
or dust are present).
3
Important Safety Instructions
(cont’d)
14) Remove all highly flamma-
ble 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 mini-
mum of 14 gauge capacity.
We recommend they be
listed by Underwriters
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 out-
let 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) Always unplug tool before
performing any mainte-
nance. When servicing,
use only Master Appliance
brand replacement parts.
We recommend that all
maintenance be performed
by a qualified repair techni-
cian who is experienced in
the repair of electric tools,
a qualified service organi-
zation, or our repair staff.
24)
WARNING: This product,
when used for soldering and
similar applications, pro-
duces chemicals known to the
state of California to cause
cancer and birth defects or
other reproductive harm.
Send product to:
Master Appliance Corp.
Attn: Repair Department
2420 - 18th Street
Racine, Wl 53403
Operating Instructions
Your Master Heat Gun is a
heavy-duty, industrial-quality,
general-purpose 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 applica-
tions such as activating adhe-
sives, 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, soften-
ing 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 air
intake shutter, 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 applica-
tion, we recommend that you
experiment with a piece of
scrap material. Use care in
approaching the work until
you find the proper combina-
tion of shutter adjustment, dis-
tance from the work surface
and heat application time.
4
Use a gentle back and forth
motion when applying heat
unless it is found that a con-
centrated heat is desired.
To Operate Heat Gun
1) Plug heat gun into properly
rated outlet.
2) Move rocker switch to “Hot”
position. Heat gun will
come up to full operating
temperature in approxi-
mately two minutes.
3) Adjust air intake shutter to
desired position. Open will
provide slightly cooler air.
Closed will provide the
highest temperature.
Operating Instructions
(cont’d)
4) Adjustable stand is pro-
vided to allow nozzle to be
rotated from almost hori-
zontal to vertical position.
5) 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.
6) Move switch to "OFF"
position.
When heat gun is used in an
enclosed container, such as a
shrink tunnel or special enclo-
sure, ambient air must be
allowed to pass into the heat
gun and there must be an out-
let of equal size for the heated
air to pass out of the enclosure
also. Total enclosure will
cause damage or possible fail-
ure 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 Master Heat Gun.
Because of its higher power
and airflow ratings many pro-
fessional restoration and reno-
vation contractors recognize it
as the tool of choice for tough
paint stripping jobs.
We recommend using only
the Model HG-501A (120V),
HG-501A-C (120 V, in Canada)
or the Model HG-502A
(220/240V) for professional
paint stripping applications.
Paint Stripping Safety
Instructions
1)
WARNING:
With a heat
gun, as with all other heat
tools, keep a fire extin-
guisher handy and observe
all sensible fire precautions.
We do not recommend
using this heat gun on
hollow
surfaces such as
outdoor siding, walls, sof-
fits, panels and partitions,
etc. These areas often con-
tain 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.
2) Do not breathe or swallow
lead based paint in any
form. Many old homes and
other buildings contain lead
based paint. Dust, scrap-
ings, residues and vapors of
lead based paint are
extremely poisonous.
Prevent possible lead
5
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.
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.
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