Milwaukee 8978, 8986-20, 8977, 8988-20, 8975 User Manual
OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
Catalog No.
No de Cat.
Número de Catálogo
8975
8977
8978
8986-20
8988-20
HEAVY-DUTY HEAT GUNS
EXTRA ROBUSTES PISTOLETS À DÉCAPER
PISTOLAS DE CALOR PARA SERVICIO PESADO
TO REDUCE THE RISK OF INJURY, USER MUST READ AND UNDERSTAND OPERATOR'S MANUAL.
AFIN DE RÉDUIRE LE RISQUE DE BLESSURES, L'UTILISATEUR DOIT LIRE ET BIEN COMPRENDRE LE
MANUEL DE L'UTILISATEUR.
PARA REDUCIR EL RIESGO DE LESIONES, EL USUARIO DEBE LEER Y ENTENDER EL MANUAL DEL
OPERADOR.
GENERAL SAFETY RULES
WARNING!
READ AND UNDERSTAND ALL INSTRUCTIONS.
Failure to follow all instructions listed below, may result in
electric shock, fire and/or serious personal injury.
SAVE THESE INSTRUCTIONS.
WORK AREA
1. Keep your work area clean and well lit. Cluttered benches and
dark areas invite accidents.
2. Do not operate power tools in explosive atmospheres, such
as in the presence of flammable liquids, gases, or dust.
Power tools create sparks which may ignite the dust or fumes.
3. Keep bystanders, children, and visitors away while operat-
ing a power tool. Distractions can cause you to lose control.
Protect others in the work area from debris such as chips and
sparks. Provide barriers or shields as needed.
ELECTRICAL SAFETY
4. Grounded tools must be plugged into an outlet properly
installed and grounded in accordance with all codes and
ordinances. Never remove the grounding prong or modify
the plug in any way. Do not use any adaptor plugs. Check
with a qualified electrician if you are in doubt as to whether
the outlet is properly grounded. If the tools should electrically
malfunction or break down, grounding provides a low resistance
path to carry electricity away from the user.
5. Double Insulated tools are equipped with a polarized plug
(one blade is wider than the other). This plug will fit in a
polarized outlet only one way. If the plug does not fit fully in
the outlet, reverse the plug. If it still does not fit, contact a
qualified electrician to install a polarized outlet. Do not change
the plug in any way. Double insulation eliminates the need for
the three wire grounded power cord and grounded power supply
system.
6. Avoid body contact with grounded surfaces such as pipes,
radiators, ranges and refrigerators. There is an increased risk
of electric shock if your body is grounded.
7. Do not expose power tools to rain or wet conditions. Water
entering a power tool will increase the risk of fire and electric shock.
8. Do not abuse the cord. Never use the cord to carry the tools
or pull the plug from an outlet. Keep cord away from heat,
oil, sharp edges or moving parts. Replace damaged cords
immediately. Damaged cords increase the risk of electric shock.
9. When operating a power tool outside, use an outdoor
extension cord marked W-A or W. These cords are rated
for outdoor use and reduce the risk of electric shock.
PERSONAL SAFETY
10. Stay alert, watch what you are doing, and use common sense
when operating a power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or medication. A
moment of inattention while operating power tools may result in
serious personal injury.
11. Dress properly. Do not wear loose clothing or jewelry.
Contain long hair. Keep your hair, clothing, and gloves away
from moving parts. Loose clothes, jewelry, or long hair can be
caught in moving parts.
12. Avoid accidental starting. Be sure switch is off before
plugging in. Carrying tools with your finger on the switch or
plugging in tools with the switch on invites accidents.
13. Remove adjusting keys or wrenches before turning on the
tool. A wrench or a key that is left attached to a rotating part of the
tool may result in personal injury.
14. Do not overreach. Keep proper footing and balance at all
times. Proper footing and balance enables better control of the tool
in unexpected situations.
15. Use safety equipment. Always wear eye protection. Dust
mask, non-skid safety shoes, hard hat, or hearing protection must
be used for appropriate conditions.
TOOL USE AND CARE
16. Use clamps or other practical way to secure and support
the workpiece to a stable platform. Holding the work by hand
or against your body is unstable and may lead to loss of control.
17. Do not force tool. Use the correct tool for your application.
The correct tool will do the job better and safer at the rate for which
it is designed.
18. Do not use tool if switch does not turn it on or off. Any tool
that cannot be controlled with the switch is dangerous and must be
repaired.
19. Disconnect the plug from the power source before making
any adjustments, changing accessories, or storing the tool.
Such preventive safety measures reduce the risk of starting the tool
accidentally.
20. Store idle tools out of reach of children and other untrained
persons. Tools are dangerous in the hands of untrained users.
21. Maintain tools with care. Keep cutting tools sharp and clean.
Properly maintained tools with sharp cutting edge are less likely to
bind and are easier to control. Do not use a damaged tool. Tag
damaged tools Do not use until repaired.
22. Check for misalignment or binding of moving parts, break-
age of parts, and any other condition that may affect the
tools operation. If damaged, have the tool serviced before
using. Many accidents are caused by poorly maintained tools.
23. Use only accessories that are recommended by the manufacturer for your model. Accessories that may be suitable for
one tool, may become hazardous when used on another tool.
SERVICE
24. Tool service must be performed only by qualified repair
personnel. Service or maintenance performed by unqualified per-
sonnel could result in a risk of injury.
25. When servicing a tool, use only identical replacement parts.
Follow instructions in the Maintenance section of this
manual. Use of unauthorized parts or failure to follow Maintenance
Instructions may create a risk of electric shock or injury.
page 2
SPECIFIC SAFETY INSTRUCTIONS HEAT GUNS
SAFETY INSTRUCTIONS FOR REMOVING PAINT
1. Do not direct the heat gun air airflow at clothing, hair or
other body parts. Do not use as a hair dryer. Heat guns can
produce 1000°F (540°C) or more of flameless heat at the nozzle.
Contact with the air stream could result in personal injury.
2. Know your work environment. Hidden areas such as behind
walls, ceilings, floors, soffit boards and other panels may contain
flammable materials that may ignite when using the heat gun in these
locations. Ignition of these materials may not be readily apparent and
could result in property damage and personal injury. Check these
areas before applying heat. If in doubt, use an alternate method.
Pausing or lingering in one spot may ignite the panel or the material
behind it. Keep heat gun moving to avoid excessive temperatures.
3. Do not use near flammable liquids or in explosive atmo-
spheres, such as in the presence of fumes, gases or dust.
The flameless heat from the heat gun may ignite the dust or fumes.
Remove materials or debris that may become ignited from work area.
4. Shield materials around the heated area to prevent property
damage or fire.
5. Keep a fire extinguisher nearby. Heat guns may ignite flammable
materials left in the work area.
6. WARNING! Hot Surfaces. Always hold the heat gun by the
plastic enclosure. Do not touch nozzle, accessory tips or
store heat gun until the nozzle has cooled to room temperature. The metal nozzle requires approximately 20 minutes to
cool before it can be touched. Contact with the nozzle or accessory
tip could result in personal injury. Place the heat gun in a clear area
away from combustible materials while cooling to prevent flammable
materials from igniting.
7. Do not cut off airflow by placing nozzle too close to workpiece.
Keep intake vents clean and clear of obstructions. Restricting airflow may cause the heat gun to overheat.
8. Place the heat gun on a stable, level surface when not hand
held. Use the support pads or support stand. Place cord in a
position that wont cause the heat gun to tip over.
9. Do not leave the heat gun unattended while running or cool-
ing down. Inattention invites accidents.
10. Store indoors in a dry location. Do not expose to rain or moisture.
11. Do not direct airflow directly on glass. The glass may crack and
could result in property damage or personal injury.
12. Maintain labels and nameplates. These carry important information. If unreadable or missing, contact a MILWAUKEE Service facility for a free replacement.
13. WARNING! Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities contains chemicals known
to cause cancer, birth defects or other reproductive harm. Some
examples of these chemicals are:
lead from lead-based paint
crystalline silica from bricks and cement and other masonry prod-
ucts, and
arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter
out microscopic particles.
WARNING!
Use extreme care when stripping paint. Peelings, residue
and vapors of paint may contain lead, which is POISONOUS.
Pre-1977 paint may contain lead and paint made
before 1950 is likely to contain lead. Hand to mouth contact
with paint peelings or residue from pre-1977 paint may
result in lead ingestion. Exposure to even low levels of lead
can cause irreversible brain and nervous system damage.
Young and unborn children are especially vulnerable to
lead poisoning. DO NOT REMOVE LEAD-BASED PAINT WITH
A HEAT GUN. Before beginning your work, determine
whether the paint you are removing contains lead. A local
health department or a professional who uses a paint
analyzer can check the paint for lead content. LEAD-BASED
PAINT SHOULD BE REMOVED ONLY BY A PROFESSIONAL.
1. Work in a well ventilated area. If possible, move the workpiece
outdoors. If working indoors, open windows and place an exhaust
fan in a window. Be sure the fan is moving air from inside to outside.
Proper ventilation will reduce the risk of inhaling chemicals found in
the fumes or dust created by using a heat gun.
2. Remove or cover any carpets, rugs, furniture, clothing, cook-
ing utensils and air ducts to prevent property damage from the
paint peelings.
3. Use caution when operating the heat gun. Keep the heat gun
moving to prevent excessive temperatures. Excessive heat can
cause paint and other materials to burn and cause fumes, which
may be inhaled by the operator.
4. Keep work environment clean. Keep food and drink away from
work area. Wash hands, arms and face and rinse mouth before
eating and drinking. Do not smoke, or chew gum or tobacco in the
work area. Paint scrapings and dust created from removing paint
may contain chemicals that are hazardous.
5. Place drop cloths in the work area to catch paint scrapings.
Wear protective clothing such as hats, extra work shirts and
overalls. Paint scrapings may contain chemicals that are hazardous.
6. Work in one room at a time. Remove furnishings or cover them
and place in the center of the room. Seal doorways with drop cloths
to seal work area from the rest of the building.
7. Children, pregnant or potentially pregnant women, and nurs-
ing mothers should not be near work area until all work is
completed and work area is cleaned thoroughly.
8. Wear a dust respirator mask 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.
9. Clean up all paint scraping and dust. DO NOT SWEEP, DRY
DUST OR VACUUM. Wet mop floors. Use a wet cloth to clean all
walls, sills and other surfaces where paint and dust have accumulated. Use a high phosphate detergent, trisodium phosphate (TSP),
or a trisodium phosphate substitute to clean and mop the work area.
10. Dispose of paint scrapings properly. Following each work ses-
sion, place paint scrapings in a double plastic bag, close it with tape
or twist ties and dispose.
11. Remove protective clothing and work shoes in the work
area to avoid transferring dust to other parts of the building. 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.
page 3
GROUNDING EXTENSION CORDS
WARNING!
Improperly connecting the grounding wire can result in the
risk of electric shock. Check with a qualified electrician if you
are in doubt as to whether the outlet is properly grounded.
Do not modify the plug provided with the tool. Never remove
the grounding prong from the plug. Do not use the tool if the
cord or plug is damaged. If damaged, have it repaired by a
MILWAUKEE service facility before use. If the plug will not fit
the outlet, have a proper outlet installed by a qualified
electrician.
Grounded Tools:
Tools with Three Prong Plugs
Tools marked Grounding Required
have a three wire cord and three
prong grounding plug. The plug must
be connected to a properly grounded
outlet (See Figure A). If the tool should
electrically malfunction or break
down, grounding provides a low resistance path to carry electricity
away from the user, reducing the risk
of electric shock.
The grounding prong in the plug is connected through the green wire
inside the cord to the grounding system in the tool. The green wire in the
cord must be the only wire connected to the tool's grounding system and
must never be attached to an electrically live terminal.
Your tool must be plugged into an appropriate outlet, properly installed
and grounded in accordance with all codes and ordinances. The plug
and outlet should look like those in Figure A.
Double Insulated Tools:
Tools with Two Prong Plugs
Tools marked Double Insulated do
not require grounding. They have a
special double insulation system
which satisfies OSHA requirements
and complies with the applicable
standards of Underwriters Laboratories, Inc., the Canadian Standard
Association and the National Electrical Code. Double Insulated tools may
be used in either of the 120 volt outlets shown in Figures B and C.
Fig. A
Fig. B
Fig. C
Grounded tools require a three wire extension cord. Double insulated
tools can use either a two or three wire extension cord. As the distance
from the supply outlet increases, you must use a heavier gauge extension cord. Using extension cords with inadequately sized wire causes a
serious drop in voltage, resulting in loss of power and possible tool
damage. Refer to the table shown to determine the required minimum
wire size.
The smaller the gauge number of the wire, the greater the capacity of the
cord. For example, a 14 gauge cord can carry a higher current than a 16
gauge cord. When using more than one extension cord to make up the
total length, be sure each cord contains at least the minimum wire size
required. If you are using one extension cord for more than one tool, add
the nameplate amperes and use the sum to determine the required minimum wire size.
Guidelines for Using Extension Cords
If you are using an extension cord outdoors, be sure it is marked
with the suffix W-A (W in Canada) to indicate that it is acceptable
for outdoor use.
Be sure your extension cord is properly wired and in good electrical
condition. Always replace a damaged extension cord or have it
repaired by a qualified person before using it.
Protect your extension cords from sharp objects, excessive heat
and damp or wet areas.
Recommended Minimum Wire Gauge
Nameplate
Amperes
8.1 - 12
12.1 - 15
15.1 - 20
* Based on limiting the line voltage drop to five
volts at 150% of the rated amperes.
for Extension Cords*
25'
0 - 5
5.1 - 8
16
16
14
12
10
Extension Cord Length
100'
50'
16
16
14
12
10
75'
16
14
12
10
10
14
12
10
10
150'
12
10
--
--
--
--
200'
12
--
--
--
--
READ AND SAVE ALL INSTRUCTIONS
FOR FUTURE USE.
Symbology
Cat.
No.
8975
8977
8978
8986-20
8988-20
page 4
Volts
AC
120
120
120
120
120
Specifications
Max.
Amps
11.6
11.6
12.5
12.5
12.5
Max.
Watts
1400
1400
1500
1500
1500
Temperature
570° F / 1000° F
(300°C / 540°C)
140° F / 1040° F
(60°C / 560°C)
200° F / 1100° F
(93°C / 593°C)
90°F / 1100°F
(32°C - 593°C)
90°F / 1100°F
(32°C - 593°C)
* Cubic feet per minute
Airflow
CFM*
14.8
14.8
14.8
7-16
7-16
Double insulated
Volts alternating current
Amps
Watts
Canadian Standards Association
Underwriters Laboratories, Inc.
Underwriters Laboratories, Inc.
(UL Listed to U.S. and Canadian
safety standards)
FUNCTIONAL DESCRIPTION
Cat. Nos. 8975 and 8977
1. Accessory attachment area
2. Nozzle
3. Front cover
4. Nameplate
5. Intake vents
6. End cap temperature control(Cat. No. 8977 only)
7. Handle
8. Support stand
9. On/off switch (On/off- high/low on 8975)
Cat. No. 8978
1. Accessory attachment area
2. Nozzle
3. Front cover
4. Nameplate
5. Heat adjustment knob
6. Intake vents
7. On/off switch
8. Handle
9. Support base
2
1
1
2
Cat. No. 8978
3
9
Cat. No. 8977
4
3
4
5
6
7
8
5
6
7
8
9
Cat. Nos. 8986-20 and 8988-20
1. Accessory attachment area
2. Nozzle
3. Front cover
4. Temperature display (Cat. No. 8988-20 only)
5. Support base
6. Temperature control switch
7. Handle
8. Airflow control switch / On/off switch
9. Intake vents
3
1
9
8
7
Cat. No. 8988-20
42
5
6
5
page 5
TOOL ASSEMBLY
OPERATION
WARNING!
To reduce the risk of injury, always unplug tool before
attaching or removing accessories or making adjustments.
Use only specifically recommended accessories. Others
may be hazardous.
Installing Reduction Nozzles
Reduction nozzles are used to intensify the application of heat in a
specific area.
For reduction nozzle Cat. No. 49-80-0297:
1. To install the reduction nozzle to the heat gun, slide the nozzle onto
the heat gun nose.
2. Adjust heat, distance and length of application as necessary.
For reduction nozzles Cat. No. 49-80-0305, 49-80-0306 (For use with
electronic controlled heat guns 8978, 8986-20 and 8988-20 only):
1. To install the reduction nozzle to the heat gun, align the grooves on
the nozzle with the grooves on the heat gun nose.
2. Slide the nozzle onto the nose.
3. Adjust heat, distance and length of application as necessary.
Installing Slit and Cutting Nozzles
The slit nozzle Cat. No. 49-80-0308 is used for lap welding. The cutting
nozzle Cat. No. 49-80-0309 is used as a heated cutting edge.
NOTE: The reduction nozzle Cat. No. 49-80-0305 is needed as an attachment for the slit and cutting nozzles. (For use with electronic controlled heat guns 8978, 8986-20 and 8988-20 only):
1. To install the reduction nozzle to the heat gun, align the grooves on
the nozzle with the grooves on the heat gun nose and slide the nozzle
onto the nose.
2. Slide the slit or cutting nozzle onto the reduction nozzle.
3. Adjust heat, distance and length of application as necessary.
WARNING!
To reduce the risk of injury, wear safety goggles or glasses
with side shields.
Using the Temperature Control Switch (Fig. 1-4)
Cat. No. 8975 (Fig. 1)
Dual temperature control heat guns are provided with a 3 position rocker
switch. Place the switch in the center position for Low range or press
in the lower position of the switch completely for High range. The
markings on the switch correspond to these positions:
Fig. 1
O = Off
I = Low Temperature
570° F (300° C)
I I = High Temperature
1000° F (540° C)
Cat. No. 8977 (Fig. 2)
Variable temperature model heat guns are marked O for OFF and l for
ON. Temperature is controlled by turning the end cap in the directions
dictated by the arrows.
Fig. 2
WARNING!
To reduce the risk of injury, do not remove accessory tips
until tool has cooled to room temperature.
Installing Air Directing Nozzles
Air directing nozzles are used to change the direction of the airflow.
For hook nozzle Cat. No. 49-80-0292, deflector Cat. No. 49-80-0293,
air spreader Cat. No. 49-80-0294, soldering reflector nozzle Cat. No.
49-80-0307:
1. To install an air directing nozzle to the heat gun, slide the nozzle onto
the heat gun nose.
2. Adjust heat, distance and length of application as necessary.
For air reflector Cat. No. 49-80-0307 (For use with electronic controlled
heat guns 8978, 8986-20 and 8988-20 only):
1. To install the air reflector nozzle to the heat gun, align the grooves on
the nozzle with the grooves on the heat gun nose.
2. Slide the nozzle onto the nose.
3. Adjust heat, distance and length of application as necessary.
O = Off
I = On
Cat. No. 8978 (Fig. 3)
Electronic temperature control system heat guns allow the tool to produce a greater concentration of heat at the nozzle, allowing the use of
various accessory nozzles.
Fig. 3
Heat adjustment knob
On / off switch
page 6
The electronic control system regulates the temperature within the tools
heating element. Unlike non-electronic heat guns, MILWAUKEEs electronic heat gun will maintain the same temperature even when the air
flow is decreased or restricted with the use of accessory nozzles.
Cat. No. 8978 is a variable temperature heat gun with a range between
200° F and 1100° F (93° C to 593° C). The heat adjustment knob is a dial
with numbers 1 through 6 on it as shown. The lower numbers correspond to cooler temperatures and higher numbers correspond to warmer
temperatures. To adjust temperature, simply turn the dial to the left or the
right.
Cat. No. 8986-20 and 8988-20 (Fig. 4)
These heat guns have a variable temperature control switch, which
allows the user to adjust the temperature for specific applications.
Using the Airflow Control Switch (Fig. 5)
(Cat. No. 8986-20 & 8988-20)
Cat. No. 8986-20 & 8988-20 have three airflow settings: high without
heat, low with heat and high with heat. Refer to the airflow/temperature
chart for various airflow and temperature settings.
Fig. 5
Fig. 4
Temperature display
Temperature
control switch
The electronic temperature control system regulates the temperature
within the tool's heating element. Unlike non-electronic heat guns,
MILWAUKEE's electronic heat gun will maintain the same temperature
even when the air flow is decreased or restricted with the use of
accessory nozzles. Refer to the airflow/temperature chart for various
airflow and temperature settings.
On Cat. No. 8988-20, a temperature display shows the heat gun
temperature setting.
1. Slide the airflow control switch (blue switch) to Position II or III to
operate the temperature control switch.
2. To adjust the temperature, slide the temperature control switch (red
switch) to the desired position.
When the temperature control switch is set to the desired position on the
8988-20, the temperature for that position will show on the temperature
display. After 3 seconds, the temperature display will show the heat
guns actual temperature. The temperature display will continue to show
the actual temperature as the heat gun adjusts to the desired temperature set by the temperature control switch position.
Airflow/Temperature Settings (8986-20 & 8988-20)
Airflow
Control
Switch
Setting
Airflow
Fan
Speed
Minimum
Temperature
Setting
Maximum
Temperature
Setting
Air Flow at
Maximum
Temperature
Setting
Airflow
control switch
1. For high airflow without heat, slide the airflow control switch (blue
switch) to Position I.
NOTE: The temperature control switch (red switch) will not operate
in this position.
2. For low airflow with heat, slide the airflow control switch (blue
switch) to Position II. The temperature may be adjusted from 90°F to
1100°F using the temperature control switch (red switch). The airflow will automatically increase as the temperature increases.
3. For high airflow with heat, slide the airflow control switch (blue
switch) to Position III. The temperature may be adjusted from 90°F to
1100°F using the temperature control switch (red switch). The airflow will automatically increase as the temperature increases.
4. To turn the heat gun off, slide the airflow control switch (blue switch)
to Position 0.
Selecting Temperature
The proper amount of heat for each application depends on the
temperature range selected, distance between the nozzle and workpiece, and the length of time heat is applied. Experiment with scrap
materials and start with lowest temperature range. Be cautious when
working until the proper combination of heat, distance and time of application has been obtained. Use a back and forth motion when applying
heat unless concentrated heat is desirable.
Support Stand (Cat. Nos. 8975 and 8977)
Cat. Nos. 8975 and 8977 have a support stand, which allows you to
position the heat gun upright on a workbench, leaving both hands free
for your application. When using Cat. Nos. 8975 and 8977 on a workbench, always place tool on a flat surface and snap the support stand
into the notched position. Place the cord so the heat gun wont tip. The
rear vent openings are designed to allow air flow even when the tool is
resting on the end cap, but it is important not to cover the vents with
foreign materials such as clothing or rags. Cat. No. 8978 has a flat
bottom surface that acts as a support stand. Rest the tool on the flat
surface, making sure to place the cord so the heat gun wont tip.
Position I
Position II
Position III
High
Low
High
90°F
90°F
90°F
90°F
1100°F
1100°F
* Cubic feet per minute
7 CFM*
8.8 CFM
16 CFM
page 7
APPLICATIONS
WARNING!
To reduce the risk of heat damage and personal injury, shield
combustible materials and areas adjacent to workpiece.
Protect yourself from hot paint scrapings and dust.
Removing Paint
Read safety instructions for removing paint before proceeding with paint
removal.
1. Begin work with low temperature setting.
2. Place nozzle approximately 1" away from work surface.
3. Pass nozzle back and forth over a small area of workpiece.
4. Gradually increase heat until paint starts to blister, then remove heat.
5. Remove paint using a sharp-edged putty knife.
Creating Bends (Fig. 6)
Both variable temperature and dual temperature heat guns are ideal for
creating bends in plexiglass that is used for guards and fixtures.
Fig. 6
Cutting Styrofoam
1. To attach the styrofoam cutting nozzle, first attach reduction nozzle
Cat. No. 49-80-0305 to the heat gun (See Installing Reduction
Nozzles). Attach the styrofoam nozzle to the reduction nozzle.
2. To cut styrofoam, use a low to medium temperature setting and
apply heat to workpiece in desired pattern. The nozzle will make
straight or curved cuts and will cut holes or recesses.
NOTE: Slight smoke and odors are normal and are not harmful as
long as you are working with adequate ventilation. Cut at maximum
speed to avoid excess smoke development and prevent the nozzle
from overheating. Read the safety instructions supplied with the
material you are cutting.
Soldering (Fig. 7)
Fig. 7
1. To form a bend, use either a low or high temperature setting. When
using a low temperature, hold the heat gun close to the workpiece
and pass the nozzle back and forth slowly. When using a high
temperature, hold the heat gun further away from the workpiece and
pass the nozzle back and forth rapidly.
2. Pass the nozzle over entire length of the surface to be bent. Applying
heat to only part of the surface will make bending uneven.
1. Attach the soldering reflector nozzle or hook nozzle to the heat gun.
2. Deburr the pipe and joint using sandpaper or steel wool.
3. To solder with either lead or non-lead solder, coat the tip on both the
copper pipe and the joint with flux. Then slip the joint over the pipe.
4. Slip the accessory nozzle around the joint. With the heat gun at a
high temperature setting, apply heat to the joint.
5. When the flux bubbles, add solder and position heat gun so excess
solder does not drip into the heat gun.
Heat Shrinking (Fig. 8)
1. Attach the soldering reflector nozzle or hook nozzle to the heat gun.
2. To heat shrink tubing, use a low temperature setting. Apply heat to
the workpiece using a side to side motion until tubing has shrunk.
Remove heat immediately.
Fig. 8
page 8
MAINTENANCE
WARNING!
To reduce the risk of injury, always unplug your tool before
performing any maintenance. Never disassemble the tool or
try to do any rewiring on the tool's electrical system. Contact
a MILWAUKEE service facility for ALL repairs.
Maintaining Tools
Keep your tool in good repair by adopting a regular maintenance program. Before use, examine the general condition of your tool. Inspect
guards, switches, tool cord set and extension cord for damage. Check
for loose screws, misalignment, binding of moving parts, improper mounting, broken parts and any other condition that may affect its safe operation. If abnormal noise or vibration occurs, turn the tool off immediately
and have the problem corrected before further use. Do not use a damaged tool. Tag damaged tools DO NOT USE until repaired
(see Repairs).
WARNING!
To reduce the risk of injury, electric shock and damage to the
tool, never immerse your tool in liquid or allow a liquid to flow
inside the tool.
Cleaning
Clean dust and debris from vents. Keep the tool handles clean, dry and
free of oil or grease. Use only mild soap and a damp cloth to clean your
tool since certain cleaning agents and solvents are harmful to plastics
and other insulated parts. Some of these include: gasoline, turpentine,
lacquer thinner, paint thinner, chlorinated cleaning solvents, ammonia
and household detergents containing ammonia. Never use flammable or
combustible solvents around tools.
Cleaning Air Filters (Fig. 9) (Cat. No. 8986-20 and 8988-20 only)
The air filters on these heat guns may be removed for cleaning.
1. Unplug tool.
2. To remove the air filter, insert a flat screwdriver between the motor
housing and air filter and loosen the air filter off of the back of the
tool (Fig. 9).
3. Slide the air filter off the back of the tool.
4. Remove the support pad from the air filter using the screwdriver.
5. Clean any dust or debris off the air filter using warm water and a
brush.
NOTE: Allow the air filter to dry before reinstalling.
6. To reinstall the air filter, slide the air filter onto the intake vent grooves
from the back end of the tool. Allow the air filter to snap back into
place.
Fig. 9
Repairs
If your tool is damaged, return the entire tool to the nearest service
center.
FIVE YEAR TOOL LIMITED WARRANTY
Every MILWAUKEE tool is tested before leaving the factory and is warranted to be free from defects in material and workmanship. MILWAUKEE
will repair or replace (at MILWAUKEEs discretion), without charge, any
tool (including battery chargers) which examination proves to be defective in material or workmanship from five (5) years after the date of
purchase. Return the tool and a copy of the purchase receipt or other
proof of purchase to a MILWAUKEE Factory Service/Sales Support
Branch location or MILWAUKEE Authorized Service Station, freight prepaid and insured. This warranty does not cover damage from repairs
made or attempted by other than MILWAUKEE authorized personnel,
abuse, normal wear and tear, lack of maintenance, or accidents.
Battery Packs, Flashlights, and Radios are warranted for one (1) year
from the date of purchase.
THE REPAIR AND REPLACEMENT REMEDIES DESCRIBED HEREIN ARE
EXCLUSIVE. IN NO EVENT SHALL MILWAUKEE BE LIABLE FOR ANY
INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
LOSS OF PROFITS.
THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, OR CONDITIONS, WRITTEN OR ORAL, EXPRESSED OR IMPLIED FOR
MERCHANTABLILITY OR FITNESS FOR PARTICULAR USE OR PURPOSE.
This warranty gives you specific legal rights. You may also have other
rights that vary from state to state and province to province. In those
states that do not allow the exclusion of implied warranties or limitation
of incidental or consequential damages, the above limitations or exclusions may not apply to you. This warranty applies to the United States,
Canada, and Mexico only.
page 9
ACCESSORIES
WARNING!
To reduce the risk of injury, always unplug the tool before
attaching or removing accessories. Use only specifically
recommended accessories. Others may be hazardous.
For a complete listing of accessories refer to your MILWAUKEE Electric Tool catalog or go on-line to www.milwaukeetool.com. To obtain a
catalog, contact your local distributor or a service center.
Hook Nozzle Cat. No. 49-80-0292
The hook nozzle is used for surround bending, soldering
pipe and applying heat to shrinkable tubing.
Deflector Nozzle Cat. No. 49-80-0293
The deflector nozzle directs the airflow at a 90 degree
angle from the heat gun nozzle. This helps to minimize
thermal shock caused by rapid expansion of glass when
softening putty or removing paint from windows.
Air Spreader Nozzle Cat. No. 49-80-0294
The air spreader nozzle reduces the airflow from a
circular area to a wide narrow line. This nozzle is used
for removing paint and softening and forming thermoplastic sheets, vinyl floor tiles, linoleum and formica.
Reduction Nozzle Cat. No. 49-80-0305
Reduction nozzles intensify the application of heat in a
specific area. This nozzle is used for bending plexiglass,
soldering and directing heat into corners.
Reduction Nozzle Cat. No. 49-80-0297
Reduction nozzles intensify the application of heat in a
specific area. This nozzle may be used for soldering.
Soldering Reflector Nozzle Cat. No. 49-80-0307
The soldering reflector nozzle is ideal for soldering
copper pipe joints and applying heat to shrinkable tubing.
Slit Nozzle Cat. No. 49-80-0308
The slit nozzle reduces the airflow from a circular area
to a narrow line. This nozzle is used for lap welding PVC
canvas or sheeting.
NOTE: Must be used with reduction nozzle Cat. No.
49-80-0305.
Cutting Nozzle Cat. No. 49-80-0309
The cutting nozzle is used for cutting stryofoam up to 4"
thick. Straight or curved cuts can be made.
NOTE: Must be used with reduction nozzle Cat. No.
49-80-0305.
page 10
Reduction Nozzle Cat. No. 49-80-0306
Reduction nozzles intensify the application of heat in a
specific area. This nozzle is used in similar applications
as reduction nozzle.
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