Milwaukee Tool 8977-20 - Manual (Page 3)

4 5
1. Accessory
attachment
area
2. Nozzle
3. Front cover
4. Nameplate (on back)
5. Intake vents
6. Handle
7. Support stand
8. High/Low switch (8975-6)
Heat/Cool-down mode switch (8977-20)
9. Variable temperature dial
(8977-20
only)
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 re-
quirements and complies with the
applicable standards of Underwrit-
ers Laboratories, Inc., the Canadian
Standard Association and the Na-
tional Electrical Code. Double Insulated tools may
be used in either of the 120 volt outlets shown in
Figures B and 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 exten-
sion 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 suffi x “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 qualifi ed
person before using it.
• Protect your extension cords from sharp objects,
excessive heat and damp or wet areas.
• Use caution when operating the heat gun. Keep
the heat gun moving to prevent excessive tempera-
tures. Excessive heat can cause paint and other
materials to burn and cause fumes, which may be
inhaled by the operator.
• 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.
• Clean up all paint scraping and dust. DO NOT
SWEEP, DRY DUST OR VACUUM. Wet mop fl oors.
Use a wet cloth to clean all walls, sills and other sur-
Fig. B Fig. C
GROUNDING
SPECIFICATIONS
* Cubic feet per minute
Cat. No. Volts AC Max. Amps Max. Watts Temperature Airfl ow CFM*
8975-6
8977-20
120
120 11.6
11.6 1400
1400 570° F / 1000° F (300°C / 540°C)
100° F / 1040° F (38°C / 560°C)
15
20
READ AND SAVE ALL
INSTRUCTIONS FOR FUTURE USE.
* Based on limiting the line voltage drop to fi ve volts at
150% of the rated amperes.
EXTENSION CORDS
FUNCTIONAL DESCRIPTION
SYMBOLOGY
faces 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.
• Dispose of paint scrapings properly. Following
each work session, place paint scrapings in a double
plastic bag, close it with tape or twist ties and dispose.
• 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.
SAVE THESE INSTRUCTIONS
ASSEMBLY
Installing/Removing Nozzles
1. To install, slide the nozzle onto the heat gun
nose.
2. Adjust heat, distance and length of application
as necessary.
3. To remove, allow tool to cool to room tempera-
ture, then pull nozzle away from tool.
2
1
3
6
8
5 4
OPERATION
Selecting Temperature
The proper amount of heat for each application
depends on the temperature selected, distance
between the nozzle and workpiece, and the length
of time heat is applied. Experiment with scrap
materials and start with the lowest temperature.
Be cautious when working until the proper com-
bination of heat, distance and time of application
has been obtained. Use a back and forth motion
when applying heat unless concentrated heat is
desirable. When done, place the tool upright on a
fl at surface, snap the support stand into the center
notched position, and place the cord so the heat
gun won’t tip to allow the nozzle to cool.
High/Low Switch (Cat. No 8975-6)
1. For Low Temperature (570°F), move the switch
to the middle position.
2. For High Temperature (1000°F), press in the
bottom of the switch.
3. For OFF, press in the top of the switch.
Variable Temperature Dial (Cat. No. 8977-20)
1. For ON, push the switch to the (II) position.
2. Rotate the variable temperature dial to increase
or decrease the temperature (up to 1040°F)
3. To cool the tool before storage, push the switch
to the (I) position.
4. For OFF, push the switch to the (0) position.
Hands-Free Use
The heat guns can be positioned upright on a
stable surface, leaving both hands free for the ap-
plication. Always place tool on a fl at surface, snap
the support stand into the center notched position,
and place the cord so the heat gun won’t tip. The
rear vent openings are designed to allow air fl ow
7 WARNING Improperly connecting the
grounding wire can result in the risk of electric
shock. Check with a qualifi ed 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 fi t the outlet,
have a proper outlet installed by a qualifi ed
electrician.
WARNING To reduce the risk of injury,
do not remove or attach accessory tips until
tool has cooled to room temperature.
WARNING To reduce the risk of injury,
always unplug tool before attaching or remov-
ing accessories or making adjustments. Use
only specifi cally recommended accessories.
Others may be hazardous.
WARNING To reduce the risk of in-
jury, wear safety goggles or glasses with side
shields.
WARNING To reduce the risk of injury,
always unplug tool before attaching or remov-
ing accessories or making adjustments. Use
only specifi cally recommended accessories.
Others may be hazardous.
Fig. A
9
Recommended Minimum Wire Gauge
For Extension Cords*
Nameplate Amps
Extension Cord Length
25' 50' 75' 100' 150'
0 - 2.0
2.1 - 3.4
3.5 - 5.0
5.1 - 7.0
7.1 - 12.0
12.1 - 16.0
16.1 - 20.0
18
18
18
18
16
14
12 18
18
18
16
14
12
10 18
18
16
14
12
10
--
18
16
14
12
10
--
--
16
14
12
12
--
--
--
Double Insulated
Volts
Alternating Current
Amps
Watts
C US
Underwriters Laboratories, Inc.
United States and Canada