ATD Tools ATD-3740 User Manual

OWNER’S MANUAL

DUAL HEAT SOLDERING GUN

MODEL NUMBER

ATD - 3740

SAFETY INSTRUCTIONS TO OPERATOR

!

WARNING : Read and understand this owner’s
ma nual before using soldering gun. Unsafe
operation and improper maintenance can cause
burns to bod y or eyes , electric shock, health
issues, damage to the tool , e, or explosion.

!

WARNING : Solder containing lead must n ever be
used for plumbing applications. This soldering gun
is not intended for plumbing connections and, if
used for this application , will likely result in poor
quality plumbing joints.

!

WARNING : Some ATD Soldering Guns are
provided with solder. This solder may contain
metals or chemicals that may be toxic if inhaled.
Do not inhale dust , smoke , or fumes when
operating.

!

WARNING : To avoid injury, do not use tips
containing copper. Use only ATD tips speci

SAFETY INSTRUCTIONS AND MAINTENANCE

1. This appliance has a polarized plug (one blade is wider

than the other). To reduce the risk of electric shock, this
plug is intended to
If the plug does not
If it still does not
modify the plug in any way.

2. Arrange a secure resting place on your worktable where
the tip will never contact a

or the power cord. With a peak temperature of about
1000° F, the tip may remain hot for several minutes after
you release the trigger switch.

3. To reduce the risk of burns, remove excess hot molten

solder from the tip by wiping with a damp cloth, damp
sponge, or solder brush made for that purpose. Never
swing the gun.

in a polarized outlet only one way.

fully in the outlet, reverse the plug.

contact a electrician. Do not

surface, your body,

4. To protect eyes from splatte r, wear safety goggles
meeting requirements of ANSI Z87.1 (shown on safety
goggle package).

5. To reduce the risk of destroying the tool, observe the
20% “On” time duty cycle rating of a soldering gun. This
rating means a maximum of 1 minute of “On” time over
5 minutes total time. Never tie down the trigger switch.

6. To reduce the risk of respirator y, eye, or skin irritation,
keep your head out of the soldering fumes.

7. To reduce the risk of electrical shock,
explosion, work only in surroundings that are dry, and are
free from

8. After use, unplug the power cord and let tip cool down.
Store soldering gun in a dry secure place, out of the
reach of children.

ed.

re, injury, or

ammable materials including vapors and liquids.

Assembly

1. Soldering Gun comes complete with solder tip(s).

Operation

Maintenance

Operation

Troubleshooting

2. Loosen screws located on the front of the soldering tool

using a #2 Phillips screwdriver.

3. Insert solder tip into openings and tighten down the screws.

Using Soldering Gun

1. Screws holding tip must always be snug for soldering gun

to function properly. Use a #2 Phillips screwdriver to tighten
screws when necessary. To avoid stripping screws, be
careful not to over-tighten.

2. Clean the surfaces to be soldered together to insure a good
bond. Use a wire brush or sandpaper to remove paint,
varnish, or rust. To remove oil or grease, use alcohol.

!

WARNING : To reduce the risk of re , burns , or
toxic vapors , do not use solvents other than
alcohol for oil or grease removal.

3. Select the proper solder type. Rosin core solder is

recommended for work on electrical items such as PC
boards, radio and TV kits, model railroads, etc. The rosin, or
ux, as it is sometimes called, helps clean the soldering
joint as the solder is being melted and helps in the bonding
process.

Another type of solder is ACID core solde r. Do not use acid
core solder when soldering electrical connections. Damage
to electrical components may result. Acid core solder is
recommended when soldering some types of steel plates
together, but not for electrical connections.

4. For best results, tin the tip of the soldering gun with a
coating of rosin core solder. This is done by cleaning the tip
with steel wool, then pulling the trigger to heat the tip and
then applying a light coating of new solder to the tip. Excess
solder may be removed with a
or damp cloth.

5. When soldering, hold soldering gun tip to the two surfaces
(the “joint”) to be soldered at the same time. Pull trigger to
apply heat to the joint. It takes approximately 12 seconds for
the tip to reach soldering temperature. Apply solder to the
joint, NO T to the TIP , but close to the tip. When the surfaces
are su fciently heated, the solder will ow into the joint. Do
not apply too much solder to the joint. Use just enough to
give strength and a good appearance.

6. Release trigger of gun and set soldering gun in a safe
position to cool.

IMPOR TANT : Remember to use your soldering gun with a
20% duty cycle. Never use it continuously for more than
one minute without letting it cool for 4 minutes. Never tie
down the trigger expecting the tip to remain at peak
temperature for soldering. This will damage the tip and the
remainder of the soldering gun.

solder brush, damp sponge

Taking Care of Your Soldering Gun

!

WARNING : To avoid burns or electrical shock,
alwa ys unplug the soldering gun and all ow to cool
before servicing.

Keep tip screws snug. Periodically inspect the tip screws for
looseness and tighten when necessar y. However , to avoid
stripping screws, do not over-tighten.

Keep the soldering tip clean. Use steel wool or very ne
sandpaper to clean.

Tin tip before using. Refer to Step 4 of

Changing T ip

1. Remove tip after loosening both screws holding tip.

2. Insert new tip and tighten screws. To avoid stripping screws,

do not over tighten.

NOTE: Soldering gun is not serviceable except to replace tips.
Some models are provided with a light. If the light burns out,
replace it with a 2.25V bulb.
The use of non-recommended tips may result in improper tip
temperatures and damage to the gun.

Replacement Tips Available Through Your ATD Tools Supplier

!

WARNING : To reduce the risk of injury or
damage to soldering gun , do not use tips
containing copper. Use only the specied ATD tips.

Your ATD-3740 Soldering Gun

one each of the tips below.

General

Purpose T ip

PRT3740-1

PRT3740-10

Contains

Cutting

Tip

.

Trouble

Tip does not heat although unit is
plugged in and trigger is depressed.

Probable Cause

1. Tip screws are loose.

2. Tip cracked or broken.

3. Tip is dirty.

Action

Unplug gun from power receptacle

1. Tighten tip screws.

2. Replace with new tip.

3. Clean tip with steel wool or ne

sandpaper .