OEM Tools 24818 Service manual

UNPACKING
After unpacking the unit, inspect carefully for any damage
that may have occurred during transit. Check for loose,
missing, or damaged parts. If any damage is observed,
a shipping damage claim must be filed with the carrier.
DO NOT use the OEMTOOLS™24818 Compact Inverter
Stick Welder if broken, bent, cracked or damaged parts
(including labels) are noted. Any Welder that appears
damaged in any way, operates abnormally or is missing
parts should be removed from service immediately. If
you suspect that the Welder was subjected to shock load
(a load that was dropped suddenly, unexpectedly, etc.),
immediately discontinue use until it has been checked by
a factory authorized service center.
Operating Instructions and Parts Manual 24818
2/18
2018 OEMTOOLS™
Thank you very much for choosing an OEMTOOLS™Product!
For future reference, please register your new product at www.oem-tools.com and complete the owner’s record below:
Model: _______________ Purchase Date: ___________
Save the receipt, warranty and these instructions. It is important that you read the entire manual to become familiar with this product
before you begin using it. This product is designed for certain applications only. OEMTOOLS™cannot be responsible for issues arising
from modification. We strongly recommend this product is not modified and/or used for any application other than that for which it was
designed. If you have any questions relative to a particular application, DO NOT use the product until you have first contacted customer
service to determine if it can or should be performed on the product.
The following safety information is provided as a guideline to help you operate your Welder under the safest possible conditions. Any tool
or piece of equipment can be potentially dangerous to use when safety or safe handling instructions are not known or not followed. The
following safety instructions are to provide the user with the information necessary for safe use and operation. Please read and retain
these instructions for the continued safe use of your Welder. Failure to follow instructions listed below may result in serious injury. In
addition, make sure that anyone who uses the equipment understands and follows these safety instructions as well.
WARNING
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
CAUTION: Used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may
result in property damage.
NOTES: Provide clarity and helpful information.
Explanation of Safety Signal Words
COMPACT INVERTER STICK
WELDER 110V 70A
Please read and save these instructions. Read through this owner’s manual carefully before using product. Protect
yourself and others by observing all safety information, warnings, and cautions. Failure to comply with instructions
could result in personal injury and/or damage to product or property. Please retain instructions for future reference.
FOR CUSTOMER SERVICE
Technical Question?
CALL 1-866-458-2472
[email protected]

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Operating Instructions and Parts Manual 24818
COMPACT INVERTER STICK
WELDER 110V 70A
2/18
2018 OEMTOOLS™
IMPORTANT INSTRUCTIONS
AND SAFETY RULES
1. Know your product. Read this manual carefully. Learn
the product’s applications and limitations, as well as
potential hazards specific to it.
2. Keep work area clean and well lit. Cluttered or dark
work areas invite accidents.
3. Keep children away. All children should be kept away
from the work area. Never let a child handle tools or
equipment without strict adult supervision.
4. DO NOT operate this product if under the influence of
alcohol or drugs. Read warning labels on prescriptions
to determine if your judgment or reflexes are impaired
while taking drugs. If there is any doubt, DO NOT
attempt to operate.
5. Use safety equipment. Eye protection should be worn at all
times when operating this tool. Use ANSI approved safety
glasses. Everyday eyeglasses are NOT safety glasses.
Dust mask, non-skid safety shoes, hard hat or hearing
protection should be used in appropriate conditions.
6. Wear proper apparel. Loose clothing, gloves, neck-ties,
rings, bracelets or other jewelry may present a potential
hazard when operating this product. Keep all apparel
clear of the product.
7. DO NOT overreach. Keep proper footing and balance at
all times when operating this product.
8. Check for damage. Check equipment regularly. If part of
the product is damaged, it should be carefully inspected
to make sure that it can perform its intended function
correctly. If in doubt, discontinue use of product.
9. Keep away from flammables. DO NOT attempt to
operate this product near flammable materials or
combustibles. Failure to comply may cause serious
injury or death.
10. Store this product out of the reach of children and
untrained persons. This product may be dangerous in
the hands of untrained users.
11. Keep this product dry and clean.
12. Use only accessories that are recommended by the
manufacturer for your model. Accessories that may be
suitable for one product may become hazardous when
used on another product.
13. Service must be performed only by qualified repair
personnel. Service or maintenance performed by
unqualified personnel could result in a risk of injury.
14. When servicing a product, use only identical replacement
parts. Use of unauthorized parts or failure to follow
maintenance instructions may create a risk of injury.
15. Maintain a safe working environment. Keep the work
area well lit. Make sure there is adequate surrounding
workspace. Keep the work area free of obstructions,
grease, oil, trash, and other debris. Do not use this
product in a damp or wet location.
16. Maintain labels and nameplates on this product. These
carry important information. If unreadable or missing,
contact OEMTOOLS™for a replacement.
17. Keep this product dry, clean, and free from brake fluid,
oil, and grease.
18. Avoid accidental fire. DO NOT smoke near this product.
19. The warnings, precautions, and instructions discussed
in this manual cannot cover all possible conditions
and situations that may occur. The operator must
understand that common sense and caution are factors
which cannot be built into this product, but must be
supplied by the operator.
20. We believe the information contained herein to be
reliable. However, general technical information is given
by us without charge and the user shall employ such
information at their own discretion and risk. We assume
no responsibility for results or damages incurred from
the use of such information in whole or in part.
21. The manufacturer declines any and all responsibility
for property damage or injury if said damage is the
result of unskillful handling by the operator or of
failure to observe the basic safety rules set forth in the
instruction manual.
22. The procedures documented in this manual are to serve
as guidelines for the use of this equipment.
23. The use of this equipment is simple and straightforward
if you follow the instructions. When operating this
equipment, use common sense, and only use this
equipment for its intended purpose.
PRODUCT DESCRIPTION
The OEMTOOLS™24818 Compact Inverter Stick Welder is a
lightweight, portable DC inverter stick welder, designed for
welding mild steel, stainless steel, and cast iron.
PRODUCT SPECIFICATIONS
Process Stick
Input Voltage 110V AC
Input Current 70A
Input Frequency 50/60 Hz
Output Current Range 10A-85A
Rated Duty Cycle 25% @ 70A; 60% @ 65A;
100% @ 50A
Electrode Diameter 1/16"-3/32"
Insulation Class F
Ingress Protection IP21S
Dimensions 10.1" x 7.8" x 4.9"
Weight 8.0 Lbs.
CONTENTS
(1) Stick Welder, (1) Electrode Holder and Cable Assembly,
(1) Ground Cable with Clamp, (1) Adjustable Shoulder Strap,
(1) Chipping Hammer/Brush and (1) Protective Face Shield
and Lens

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Operating Instructions and Parts Manual 24818
COMPACT INVERTER STICK
WELDER 110V 70A
2/18
2018 OEMTOOLS™
GENERAL WELDING SAFETY AND INSTRUCTIONS
WARNING: Thoroughly read and understand the provided
product manual before attempting to use this product.
WARNING: ARC WELDING CAN BE DANGEROUS.
1. DO NOT allow untrained persons or children to
operate. Ensure people in the surrounding area
understand the dangers and precautions associated
with welding prior to use.
2. CONSULT WITH A PHYSICIAN PRIOR TO OPERATION
IF YOU HAVE A PACEMAKER. Arc welders create an
Electromagnetic Field (EMF) which can interfere
with pacemakers.
3. DO NOT attempt to perform repairs on this product.
WARNING: TURN OFF INPUT POWER AT THE FUSE BOX
BEFORE INSTALLATION OR MAINTENANCE.
1. Install and ground equipment in accordance with the
US National Electrical Code, local codes and according
to this instruction/installation manual.
WARNING: ARC RAYS CAN BURN SKIN AND CAUSE
EYE DAMAGE.
1. Signs should be posted within the welding workspace
stating hazards and precautions associated with arc
welding rays and related protection.
2. The operator and nearby personnel located in the
welding workspace should wear protective shields
conforming to ANSI standards, with the proper filter
and cover plates to protect eyes from sparks and arc
welding rays.
3. The operator and nearby personnel located in the
welding workspace should wear protective clothing
made with flame-resistant material to protect skin from
sparks, metal and arc rays.
WARNING: ARC WELDING CAUSES ELECTROMAGNETIC
FIELDS. THESE FIELDS ARE DANGEROUS AND CAN CAUSE
SERIOUS INJURY OR DEATH IF PRECAUTIONS ARE NOT
FOLLOWED.
1. Welding current creates an Electromagnetic Field (EMF)
around the welding machine, leads and cords. EM fields
interfere with some pacemakers (as stated previously),
and prolonged exposure to EM fields may have other
health effects that are undetermined. Before operating
this product, the operator and personnel located
within the welding workspace should understand that
there are health risks (determined and undetermined)
associated with arc welding and EM fields.
2. MINIMIZE EXPOSURE TO EM FIELDS BY EMPLOYING
THE FOLLOWING PRECATIONS:
a. DO NOT place your body between the electrode
and the work cables.
b. DO NOT coil or wrap the electrode leads around
any part of the body.
c. DO NOT SEPARATE work cables and electrode.
Route and secure the cables together.
d. DO NOT work/weld directly beside the power source.
e. Ensure the Ground Cable is connected to the
workpiece as close to the weld as possible.
WARNING: WELDING SPARKS CAN CAUSE FIRE AND
EXPLOSION, WHICH CAN LEAD TO INJURY, DEATH AND
PROPERTY DAMAGE. ALWAYS HAVE A FIRE EXTINGUISHER
WITHIN THE WELDING AREA AND IMPLEMENT A FIRE
ESCAPE PLAN.
1. Remove all flammable items and potential fire hazards
from the welding workspace. If there are fire hazards
that cannot be removed, these should be covered with
a fire-resistant cover.
2. DO NOT operate near hydraulic, fuel or natural gas lines.
3. DO NOT weld near flammable gases, residue or
greases. Take proper steps to ventilate and clean
workspace prior to use.
4. DO NOT weld near compressed gases. DO NOT heat,
cut or weld tanks, drums or other containers that may
have stored flammable gases or liquids. While these
tanks may be “empty”, residue will remain that could
lead to fire or explosion.
5. Welding sparks, spatter and hot debris are produced
by the welding arc. It is imperative that the operator
and personnel located within the welding workspace
wear oil-free, flame-resistant clothing. Clothing should
provide full coverage: heavy leather gloves, long-sleeve
shirt, full length pants (no cuff), high protective leather
boots and a welding cap that covers all hair. Clothing
should be well fitted; loose fitting clothing may create a
fire hazard. When welding in confined spaces, flame-
resistant earplugs or earmuffs should be worn.
6. DO NOT connect the work cable to building
framework. Connect the Ground Clamp to work as
close to the weld as possible.
7. All cylinders should be securely stored in an upright
position away from welding workspace. Arc welding can
project sparks and debris that may strike cylinders. DO
NOT allow the electrode, electrode wheel, welding gun or
ground to contact a cylinder. Prior to welding, ensure the
valves on all cylinders in the vicinity are closed.
8. ALWAYS check the workpiece and surrounding work
area for smoke, flame, sparks or evidence of fire.
WARNING: ELECTRIC SHOCK CAN KILL. DO NOT TOUCH
ELECTRODE, WORK OR GROUND WHILE THE WELDER IS
ON. DO NOT TOUCH THE ELECTRODE WHEEL, WELDING
HEAD OR NOZZLE OF THE WELDING GUN WHILE THE
WELDER IS ON.
1. DO NOT wear wet clothing or gloves.
2. DO NOT touch electrode, work or ground with bare skin
while the Welder is plugged into a power source.
3. DO NOT place the electrode in water.

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Operating Instructions and Parts Manual 24818
COMPACT INVERTER STICK
WELDER 110V 70A
2/18
2018 OEMTOOLS™
4. DO NOT allow components of (2) welding machines to
come into contact while either Welder is ON.
5. ALWAYS connect to a grounded, GFCI-protected
power supply.
6. ALWAYS insulate yourself from the workpiece and
ground. Non-flammable, dry insulating material
is recommended.
7. Ensure the Ground Clamp is properly connected to the
metal being welded.
8. Ensure that all welding equipment and leads are well
maintained and in safe operating condition prior to each
use.
9. Ensure no part of the electrode circuit is in contact with
the work or ground.
WARNING: ARC WELDING MAY PRODUCE FUMES AND
GASES THAT ARE HAZARDOUS TO THE HEALTH OF THE
OPERATOR AND PERSONNEL LOCATED WITHIN THE WELDING
WORKSPACE. EXPOSURE TO THESE FUMES CAN INCREASE
THE RISK OF DEVELOPING CANCER, HEART DISEASE, EARLY
ONSET PARKINSON’S DISEASE AND VARIOUS REPRODUCTIVE,
RESPIRATORY AND DIGESTIVE DISEASES.
1. DO NOT place your head near the welding arc; avoid
breathing fumes while welding. Ensure proper ventilation.
2. Welding hard-facing, galvanized, stainless and other
plated steels or metals produces highly toxic fumes.
Always read the MSDS for the product, metal or work
prior to welding. Exhaust, mechanical ventilation and
a respirator may be required for minimal exposure to
these fumes.
3. Cylinders and containers that may have held harmful
gases should be properly vented prior to welding.
Failure to ventilate these containers will produce toxic
gases that are harmful to the operator and all personnel
located within the workspace.
4. DO NOT weld near chlorinated hydrocarbons from
degreasing, cleaning or spraying operations.
5. Read and understand the product instructions and
MSDS sheet for any consumables or products used in
conjunction with this product. There are risks outside
of the operation of this Welder that can cause unsafe
working conditions.
SPECIFIC SAFETY INSTRUCTIONS
1. THIS IS NOT A GAS WELDER.
2. DO NOT connect to power while assembling or
performing maintenance on this unit.
3. DO NOT attempt to use this Welder if the unit fails to
switch ON or OFF.
4. ALWAYS ensure the Power is in the OFF position prior to
plugging the unit into a power source.
5. DO NOT operate this unit if the actual power source
voltage is less than 110V AC or greater than 130V AC.
6. ALL INSTALLATION AND REPAIR OF THIS EQUIPMENT
SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN
IN ACCORDANCE WITH FEDERAL, STATE AND LOCAL
CODES.
WELDER SETUP INSTRUCTIONS
WARNING: Read all warnings and safety instructions prior
to installing this product.
WARNING: DO NOT plug the Welder into a power source
during the setup process.
1. Unpack all items from the box and reference the parts list
to ensure all parts are present before continuing setup.
2. Place the Welder onto a clean, protected surface that
can support the weight of the Welder. Ensure the Welder
is placed at a distance that will not overextend the cord
or place tension on the plug.
3. Install the Ground Cable to the Negative (-) output.
4. Attach the Ground Clamp to a clean, bare metal surface
on the workpiece.
5. Install the Electrode Cable to the Positive (+) output.
6. Place the selected electrode into the Electrode Holder.
WELDER OPERATING INSTRUCTIONS
NOTE: These instructions describe very basic welding
processes as they apply to the operation of this Welder.
There are many different types of welding machines, welds
and welding procedures that cannot be described in detail
by this instruction manual. Proficiency in welding requires
practice, education and testing. DO NOT rely solely on
this product manual for instructions on proper welding
technique. By using this product, the operator understands
that OEMTOOLS™cannot be held responsible for property
damage caused by operator negligence, ignorance or
general welding mistakes.
NOTE: After reading through this manual, it is recommended
that the operator, despite welding experience level, practice
welding scrap metal with this Welder. Welding operation and
performance will vary by model.
WARNING: DO NOT attempt to change the welding
current setting while operating the Welder.
1. Thoroughly read and complete Welding Machine Setup.
NOTE: Thoroughly read warnings regarding electric shock
and fire hazards prior to this step.
2. The Welder should be plugged directly into a
properly grounded 110-120V AC outlet. While not
recommended, a 12 AWG (minimum) extension
cord can be used if under 25’ in length. Consult a
professional electrician immediately if there are
any questions regarding power source or use of
extension cords.
3. Set the Welder to the desired amperage. See Helpful
Tips section for further information.

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Operating Instructions and Parts Manual 24818
COMPACT INVERTER STICK
WELDER 110V 70A
2/18
2018 OEMTOOLS™
4. Turn the Welder Power to ON.
5. Holding the Electrode Holder by the insulated handle,
slowly bring the end of the electrode to the desired
starting point of the weld. When the electrode contacts
the workpiece, an arc will be produced.
NOTE: Thoroughly read and understand warnings regarding
protective equipment and clothing prior to this step.
6. When the weld is completed, distance the Electrode
Holder from the workpiece. This will terminate the
electric arc.
7. Turn the Welder to OFF.
8. Unplug the Welder from the power source.
DUTY CYCLE
To avoid damage and personal injury, DO NOT weld for
longer than the prescribed Duty Cycle Time.
Rated Duty Cycle Duty Cycle Time
25% @ 70A 2.5 Seconds per 10 Second Interval
60% @ 65A 6 Seconds per 10 Second Interval
100% @ 50A 10 Seconds per 10 Second Interval
HELPFUL TIPS
1. Thoroughly clean surfaces prior to welding. Brush or
sand off all paint, adhesive and oxidation.
2. Weld at a constant pace. Abrupt motions or speed
changes will change the weld quality and depth.
3. Remove slag with chipping hammer to expose the weld.
4. Adjust amperage to accommodate metal thickness.
In general:
a. Thicker or harder metals require higher amperage
to establish a proper/strong weld.
b. Thinner or softer metal require lower amperage to
establish a proper/strong weld.
5. Adjust welding speed to accommodate metal thickness.
In general:
a. Thicker or harder metals require longer contact to
establish a proper/strong weld.
b. Thinner or softer metals require shorter intervals of
contact to establish a proper/strong weld.
6. To maintain electric arc, the electrode should not be
removed to a distance larger than the diameter of the
electrode in use. For example, if a 3/32" diameter
electrode is used, a distance less than 3/32" is needed
to maintain arc.
7. This machine is recommended for welding steel/metal
up to 1/8" thick.
STORAGE
WARNING: Always turn OFF and unplug before placing
into storage.
Store the Welder in an upright position and in a clean, dry
area. DO NOT store near flammable items or open flames.
PRODUCT MAINTENANCE
WARNING: DO NOT attempt to repair this product.
Contact qualified service personnel.
WARNING: Always turn OFF and unplug this Welder
before attempting product maintenance.
Before each use, evaluate the machine for any issues that
may hinder the machine or accessories from performing in
accordance with proper operation. If any issues are noted,
DO NOT attempt to use. Contact qualified service personnel
immediately.
Wipe dust, grease and debris from the Welder casing and
accessories before and after each use.
WARNING: DO NOT use water.
Clean Electrode Holder after use to remove spatter debris.
ALWAYS turn OFF and unplug this Welder before attempting
product maintenance.
DISPOSAL
At the end of the useful life of the OEMTOOLS™Compact
Inverter Stick Welder, dispose of the components in
accordance with all federal, state and local regulations.

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Operating Instructions and Parts Manual 24818
COMPACT INVERTER STICK
WELDER 110V 70A
2/18
2018 OEMTOOLS™
TROUBLESHOOTING
Problem Possible Cause Possible Solution
Arc Causing Excessive Spatter Welder Output is too high Turn Welder Output down
Damp electrode Replace with dry electrode
Lack of Weld Penetration /
Superficial Bead
Welding Output is too low Turn Welder Output up
Operator moving Electrode Holder too quickly Allow more time for the electrode to contact/heat Base Metal
Input Voltage too low Connect to a 110-120V AC outlet
Electrode is Sticking
to Workpiece
Electrode is in contact with the workpiece
for too long Adjust amperage, practice welding techniques
No Arc Produced / Indicator
Remains Unlit
Check input connection Connect to a 110-120V AC outlet
Check supply fuse Check/replace fuse
Welder Does
Not Operate
Check input connection Connect to a 110-120V AC outlet
Check supply fuse Check/replace fuse
Check Electrode Holder connections Properly connect Electrode Holder
Thermal Overload DO NOT attempt to weld, allow fan to cool unit
Protection Indicator
Illuminated
Thermal Overload DO NOT attempt to weld, allow fan to cool unit
Input power voltage is too high Connect to a 110-120V AC outlet
Cooling fan has malfunctioned Discontinue use and contact customer service

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Operating Instructions and Parts Manual 24818
COMPACT INVERTER STICK
WELDER 110V 70A
2/18
2018 OEMTOOLS™
Figure Description Quantity
AStick Welder 1
BAdjustable Shoulder Strap 1
CAmperage Setting 1
DNegative (-) Output 1
EPositive (+) Output 1
FChipping Hammer/Brush 1
GGround Cable with Clamp 1
HElectrode Holder 1
IPower Switch* 1
JPower Cable* 1
KProtective Face Shield with Lens* 1
PRODUCT LAYOUT
PARTS DESCRIPTION
H
A
B
C
D
E
F
G
*Not Shown

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Operating Instructions and Parts Manual 24818
COMPACT INVERTER STICK
WELDER 110V 70A
2/18
2018 OEMTOOLS™
CONTACT US
3580 E. Raines Road, Suite 3, Memphis, TN 38118
(1-866-458-2472)
email: [email protected]
OEMTOOLS™ONE YEAR WARRANTY
For up to one year from the date of purchase of this OEMTOOLS™product, if you find any defect in material or workmanship
(through normal usage), return it to the place of purchase or to OEMTOOLS™for repair or replacement at our discretion. In
order to obtain this service, send the product and proof of purchase (transportation pre-paid) to:
OEMTOOLS™Q.A. Dept, 3580 E. Raines Road #3, Memphis, TN 38118.
We will not be responsible for lost or damaged goods during transportation; please insure your package. If our inspection
verifies the defect, we will either repair or replace the product, or we may elect to refund the purchase price if we cannot
readily and quickly provide you with a replacement. We will return repaired products at our expense, but if we determine
there is no defect, or that the defect resulted from causes not within the scope of our warranty, then you must bear the cost
of returning the product.
OEMTOOLS™does not provide warranty for products labeled other than OEM®or OEMTOOLS™. OEMTOOLS™will not
provide any warranty for products subjected to abnormal use. Abnormal use includes (but is not limited to) abuse, accident,
alteration, neglect, and unauthorized or unreasonable use or repairs. This warranty does not cover bits, blades, files,
batteries, or calibration. We recommend that you maintain your tools and sharpen or replace blades, bits, files, and batteries
as necessary. OEMTOOLS™reserves the right to make any changes in construction or design at any time without any
obligation in incorporating such changes to tools or equipment previously sold. OEMTOOLS™makes every effort to ensure
that its products meet high quality and durability standards, and warrants to the original purchaser that this product is
free from defects in materials and workmanship for the period of one year from the date of purchase. This warranty does
not apply to damage due directly or indirectly to misuse, abuse, negligence or accidents, repairs or alterations outside our
facilities, criminal activity, improper installation, normal wear and tear or to lack of maintenance.
We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or consequential
damages arising from the use of our product. Some states do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU
OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state.
Don’t forget to register your new OEMTOOLS™product at www.oem-tools.com.