Harbor Freight Tools | Portable Torch Kit with Oxygen and Acetylene Tanks | Product manual | Harbor Freight Tools Portable Torch Kit with Oxygen and Acetylene Tanks Product manual

Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference.
REV 15b
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When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2011 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Table of Contents
Safety
Safetye��������������������������������������������������������� 2
Specifications.............................................. 6
Setup........................................................... 6
Welding������������������������������������������������������ 10
Cutting������������������������������������������������������� 14
Maintenancei���������������������������������������������� 18
Parts List and Assembly Diagram.............. 19
Warranty..................................................... 20
WARNING SYMBOLS AND DEFINITIONS
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that
follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Setup
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
Welding
IMPORTANT SAFETY INSTRUCTIONS
Read all safety warnings and instructions.
Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
Cutting
The warnings, precautions, and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur.
It must be understood by the operator that common sense and caution are factors which
cannot be built into this product, but must be supplied by the operator.
Work Area Safety
1. Keep your work area clean and well lit.
Cluttered benches and dark areas invite accidents.
Maintenance
2. Keep bystanders, children, and visitors away
while operating. Distractions can cause you to
lose control. Protect others in the work area from
intense heat. Do not allow others close enough to
look at the flame as eye damage is a real possibility.
Provide barriers or shields as needed.
3. When possible, move the work to a location well
away from combustible materials. If relocation
is NOT possible, protect the combustibles with a
cover made of fire resistant material. Remove or
make safe all combustible materials for a radius
of 35 feet (10 meters) around the work area.
Page 2
4. Enclose the work area with portable fire
resistant screens. Use a fire resistant
material to block all openings and protect
combustible walls, ceilings, floors, etc.
5. If working near/on a metal wall, ceiling, floor,
etc., prevent ignition of combustibles on
the other side by moving the combustibles
to a safe location.
If relocation of combustibles is NOT possible,
designate someone to act as a fire watch equipped
with a fire extinguisher during the welding or
cutting process and for at least one half hour after
the welding or cutting project is completed.
For technical questions, please call 1-888-866-5797.
Item 65818
Personal Safety
1. Wearing and using personal safety clothing and
safety devices reduce the risk of injury.
Wear the following:
a. Fire-resistant clothing (Do not wear pants with
cuffs, shirts with open pockets, or any clothing
that can catch and hold molten metal or sparks.)
b. Fire-resistant leather leggings and work boots
c. Dry, insulating leather welding gloves
d. NIOSH-approved respirator
e. Shade 5 or higher welding goggles
f. Appropriate head covering to
protect head and neck
g. Fire-resistant ear plugs or ear muffs
(if welding or cutting overhead
or in confined spaces)
Keep clothing and safety equipment free of grease,
oil, solvents and any other flammable substances.
2. Stay alert. Watch what you are doing, and
use common sense when operating this Torch.
Do not use while tired or under the
influence of drugs, alcohol, or medication.
A moment of inattention while operating
may result in serious personal injury.
3. Do not overreach. Keep proper footing and
balance at all times. Proper footing and balance
enables better control in unexpected situations.
INHALATION HAZARD:
Welding and Cutting Produce
TOXIC FUMES.
4.
Exposure to welding or cutting exhaust
fumes can increase the risk of developing certain
cancers, such as cancer of the larynx and lung
cancer. Also, some diseases that may be linked to
exposure to welding or cutting exhaust fumes are:
• Early onset of Parkinson’s Disease
• Heart disease
• Ulcers
• Damage to the reproductive organs
Item 65818
• Inflammation of the small intestine or stomach
• Kidney damage
• Respiratory diseases such as
emphysema, bronchitis, or pneumonia
Use natural or forced air ventilation and
wear a respirator approved by NIOSH
to protect against the fumes produced
to reduce the risk of developing the
above illnesses.
5. Avoid overexposure to fumes and gases.
Keep your head out of the fumes. Do not breathe
fumes. Use enough ventilation or exhaust,
or both to keep fumes and gases away from your
breathing area. Where ventilation is questionable,
have a qualified technician take an air sampling
to determine the need for corrective measures.
If necessary, use mechanical ventilation to
improve air quality. If this is not possible, use an
approved respirator. Do not work in confined
areas unless they are well-ventilated or you are
wearing an air supplied ventilator. Always follow
OSHA guidelines for Permissible Exposure Limits
(PEL’s) for various fumes and gases.
Follow the American Conference of Governmental
Industrial Hygienists recommendations for the
Threshold Limit Values (TLV’s) for fumes and gases.
Have a recognized specialist in Industrial Hygiene
or Environmental Services check the operation
and air quality and make recommendations
for the specific welding or cutting situation.
6. WARNING: This product, when used for welding,
plasma cutting, soldering, or similar applications,
produces chemicals known to the State of
California to cause cancer and birth defects
or other reproductive harm. (California Health
& Safety Code § 25249.5, et seq.)
7. WARNING: The brass components of this product
contain lead, a chemical known to the State
of California to cause cancer and birth defects
or other reproductive harm. (California Health
& Safety Code § 25249.5, et seq.)
For technical questions, please call 1-888-866-5797.
Page 3
Safety
Setup
9. Keep a fully charged fire extinguisher close
by and know the proper way to use it.
12. Clean and purge containers before applying
heat. Do not apply heat to a container that has
held an unknown substance or a combustible
material whose contents, when heated, can
produce flammable or explosive vapors.
Vent closed containers, including castings,
before preheating, cutting, or welding.
Welding
8. Do not dispose of hot slag in containers
holding combustible materials.
11. Do not weld or cut in atmospheres
containing dangerously reactive or
flammable gases, vapors, liquids, or dust.
Cutting
7. Do not weld or cut any material that has a
combustible coating or a combustible internal
structure, such as drums or tanks, without an
approved method for eliminating the hazard.
10. After welding or cutting make a thorough
check for evidence of fire and be aware the
easily visible flame or smoke may not be
present for some time after a fire has started.
Maintenance
6. Do not place the Torch on any material other
than bare concrete until it has cooled completely.
Equipment Setup Safety
Safety
1. Make sure you are prepared to begin
work before opening gas supply.
5. Do not use oil, grease or
thread seal tape on any connector.
2. To prevent explosion, use reverse-flow
check valves and flashback arrestors
(sold separately) on the base of the Torch.
6. Use clamps (not included) or other practical
ways 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, fire and/or personal injury.
3. Use with oxygen and acetylene only.
Do not modify this torch or use it for a
purpose for which it is not intended.
4. Set Acetylene Regulator no greater than 15 PSI.
Acetylene is unstable and can
explode if over-pressurized.
7. Use only accessories that are recommended
by the manufacturer for your model Torch.
Accessories that may be suitable for one Torch may
become hazardous when used on another Torch.
Only use proper gas hoses.
Setup
Cylinder Safety
1. Do not use dented or damaged cylinders.
2. Secure cylinders to a cart, wall, or post to
prevent them from falling.
Use and store cylinders in an upright position only.
3. Use cylinder caps when moving
or storing cylinders.
Welding
4. Do not store cylinders in
temperatures 120° F or higher.
5. EMPTY CYLINDERS:
DO NOT DROP, STRIKE, PUNCTURE, HEAT OR
SET FIRE TO A CYLINDER, EVEN IF IT IS EMPTY.
Keep empty cylinders in specified areas
and clearly mark “empty.” Contact local
solid waste authorities for instructions on correct
disposal or recycling of empty cylinders.
6. KEEP WRENCH ON
ACETYLENE CYLINDER’S VALVE
whenever cylinder is in use to allow
quick shutoff in case of emergency.
Equipment Inspection
1. DO NOT USE FLAME TO DETECT LEAKS.
2. INSPECT BEFORE EVERY USE.
Look for the following, and do not
use kit if any damage is noted:
c. Check for loose connections
using soapy water solution.
Tighten or repair any leaks found.
Cutting
a. Inspect the tapered seating surfaces on the
Nozzles and the Tip Nut. Have a qualified
technician resurface the seat area if it has
dents, burrs, or is burned. A poor seating
surface may result in backfire or flashback.
d. Do not use the Torch Kit if either
gas does not turn off completely
when the Oxygen Torch Valve and
Acetylene Torch Valve are closed. Leakage
of gas from the tip is a substantial safety risk.
If gas cannot be turned off at the Torch Handle,
it is dangerous and must be replaced.
b. Examine all hoses for cuts, cracks,
burns, worn areas, or other damage.
Do not use if damaged.
e. Inspect for any other defects or damage.
Do not use any damaged parts.
Tag damaged parts “Do not use” until repaired.
Operation Safety
Maintenance
1. Inspect before every use;
see previous warning section.
6. Allow sufficient time for the Torch to
completely cool before storing.
2. Use only with proper ventilation.
7. Any material discharged from the work area
during use will be extremely hot. Use care to
not get burned by slag or other waste products.
3. Do not touch workpiece or tip until cool.
4. Keep hoses away from hot parts, from
weld/cut area, and from flame.
5. Never leave the Torch unattended when
it is attached to a gas supply.
Page 4
For technical questions, please call 1-888-866-5797.
Item 65818
b. Touching the Tip against the workpiece.
c. Overheating the Tip.
d. An obstruction in the Tip.
If backfire occurs, close the Torch Handle Valves
(oxygen first, then acetylene) and after
remedying the cause, relight the torch.
9. FLASHBACK:
Flashback is a condition that results when the flame
flashes back into the Torch and burns inside with a
shrill hissing or squealing noise.
If flashback occurs,
close the Torch Handle Valves
(oxygen first, then acetylene) IMMEDIATELY!
Flashback generally indicates a problem that should
be repaired before proceeding with the job at hand.
A clogged Tip, improper functioning of the Valves,
10. Beware of leaking gas.
If you notice the odor of acetylene during use,
close the Torch Handle Valves
(oxygen first, then acetylene) IMMEDIATELY!
Extinguish all open flames and carefully check all
hoses and connections for leaks using soapy water.
NEVER check for leaks using a flame.
If the odor continues do not use the Torch.
Call acetylene supplier for assistance.
11. Read and understand all instructions and safety
precautions as outlined in the manufacturer’s
manual for the material you will weld or cut.
12. After use, bleed lines and store all
components out of reach of children and
other untrained persons. Torches are
dangerous in the hands of untrained users.
Safety
a. Operating the Torch at lower pressures
than required for the Tip used.
or incorrect acetylene/oxygen pressure could lead
to flashback. Find and correct the cause before
relighting the Torch.
If the cause is not found, have the kit serviced by a
qualified technician before returning to your project.
Setup
8. BACKFIRE:
When the flame goes out with a loud “pop,” it is
called a backfire. Backfire can be caused by:
Service
3. Maintain product labels and nameplates.
These carry important information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
Welding
1. Torch service must be performed only by
qualified repair personnel.
Service or maintenance performed by unqualified
personnel could result in a risk of injury.
2. When servicing, use only identical replacement
parts. Follow instructions in the
“Maintenance Instructions” section of
this manual. Use of unauthorized parts or
failure to follow maintenance instructions
may create a risk of fire or injury.
Symbology
Underwriters Laboratories, Inc.
CGA
ft3
PSI
CFH
OXY
Item 65818
Compressed Gas Association
Cubic Feet
Pounds per Square Inch
Cubic Feet per Hour flow
GAS
Fuel gas (acetylene)
related components
WARNING marking concerning Risk
of Eye Injury. Wear ANSI‑approved
safety goggles with side shields.
Read the manual before
set-up and/or use.
WARNING marking concerning
Risk of Explosion.
Do not use flame to detect leaks.
Handle cylinders properly.
WARNING marking concerning
Risk of Inhalation Hazard.
Use in well-ventilated area only.
Oxygen related components
For technical questions, please call 1-888-866-5797.
Page 5
Maintenance
Canadian Standards Association
Cutting
SAVE THESE INSTRUCTIONS.
Specifications
Safety
Regulators
Oxygen: CGA 540
Acetylene: CGA 200
Welding Nozzle
VM-W, Size 0, welds up to 1/16″
Cutting Tip
3-101, Size 0, cuts up to 1/2″
Cutting Tip
Replacement
Victor Style
Hose type
12.5 ft. L x 3/16″ inside diameter
Color Coded Twin Hose
Green oxygen hose w/right‑hand
fitting threads
Red acetylene hose w/left-hand
fitting threads
Accessories
Shade # 5 Goggles, Striker
20 cu. ft. Oxygen Cylinder
10 cu. ft. Acetylene Cylinder
Victor-Style Tip
Capable of welding from 1/32″ up to 1-1/4″ with
the appropriate welding nozzle. Capable of cutting
from 1/2″ up to 3″ with the appropriate cutting tip.
Will cut up to 1/2″ and weld up to 1/16″ with the included
welding and cutting tips.
Larger welding and cutting tips are sold separately.
Setup
Setup
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
Workpiece and Work Area Setup
Welding
1. Designate a work area that is clean and well‑lit.
The work area must not allow access by children
or pets to prevent distraction and injury.
2. Remove all combustible material from area and/
or cover surfaces with fire resistant material.
3. The work area must have a fireproof floor.
4. Secure loose workpieces using a vise or clamps
(not included) to prevent movement while working.
Note: Proper weld preparation can be complicated,
and is outside the scope of this manual.
Tool Set Up 1 of 3 - Assembly
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
Cutting
TO PREVENT SERIOUS INJURY FROM EXPLOSION:
Turn the Oxygen and Acetylene Torch Valves fully clockwise
(closed, oxygen first and acetylene second) before making any adjustments or
performing any inspection or service to this Torch Kit.
Maintenance
Note: For additional information regarding
the parts listed in the following pages, refer
to the Assembly Diagram near the end of this
manual. All instructions in this manual are
for oxygen and acetylene gas only.
WARNING! TO PREVENT FIRE AND EXPLOSION:
Make sure there is no oil, grease, or ignition source
(such as a hot weld, electric motor, or
another welding operation) nearby before
proceeding with the next step.
1. Secure cylinders to a cart, wall, or post to
prevent them from falling. Do not place
Acetylene Cylinder on its side.
Page 6
For technical questions, please call 1-888-866-5797.
Item 65818
Assembly Step 2: Crack Each Cylinder Valve
WARNING! KEEP WRENCH ON
ACETYLENE CYLINDER’S VALVE whenever cylinder
is in use to allow quick shutoff in case of emergency.
NOTE: Wrench not included.
3. Attach the Green labeled Oxygen Regulator (9)
to the Oxygen Cylinder (13) and the
green oxygen hose to the regulator.
4. Attach the Red labeled Acetylene Regulator (10)
to the Acetylene Cylinder (14) and the
red acetylene hose to the regulator,
tighten counterclockwise - threads are reversed.
Safety
Torch Handle (7)
Assembly Step 6a: Welding Setup
6b.Cutting Setup
WARNING! BEFORE CONNECTING,
Cutting
make sure the two
Attachment (5)
O‑Rings on the end of
the Cutting
Attachment (5) are not
damaged or missing,
otherwise gases will mix
inside the Torch Handle
and result in flashback
or backfires.
O-Rings
b. Make sure both check valves are
in place on the torch handle.
c. Connect the green-oxygen hose to the oxygen
Check Valve (11) on the Torch Handle.
d. Connect the red-acetylene hose to the acetylene
Check Valve (12) on the Torch Handle,
tighten counterclockwise threads are reversed.
Oxygen
Hose
(green)
Check Valve (AC) (12)
Cutting
Attachment (5)
Torch
Handle (7)
Cutting Tip (6)
Cutting
a. Remove the plastic inlet covers.
Torch
Handle (7)
Welding
Nozzle (8)
Connect the Cutting Attachment (5) to the Torch Handle.
Then, connect the Cutting Tip (6)
to the Cutting Attachment (5).
5. To set up the Torch Handle (7):
Check Valve
(OX) (11)
Connect the Welding Nozzle (8)
to the Torch Handle.
Setup
Briefly open valve to clean,
then close valve.
6a. Welding Setup
Welding
2. While standing to one side, “crack” each
cylinder valve. “Cracking” is to quickly open
and close the valve, allowing a small amount
of gas to escape and clearing the valve of any
foreign material. WARNING! If oil or grease
is found, discontinue using cylinder and
immediately contact your gas supplier.
Assembly Step 6b: Cutting Setup
7. Before operation, the leak tests on the
following pages must be done after connection
to check for leaks in the system.
Acetylene Hose (red)
Item 65818
For technical questions, please call 1-888-866-5797.
Maintenance
Assembly Step 5: Torch Handle Setup
Page 7
Tool Set Up 2 of 3 - First Leak Test: Soapy Water
This test detects major leaks.
Safety
1. After everything is connected, close both Torch
Handle Valves, turning clockwise. Close regulators,
turning knobs counterclockwise until loose.
WARNING! KEEP WRENCH ON
ACETYLENE CYLINDER’S VALVE whenever cylinder
is in use to allow quick shutoff in case of emergency.
3. Adjust the oxygen regulator to deliver 20 PSIG.
Adjust the acetylene regulator to deliver 10 PSIG.
DO NOT EXCEED 15 PSI
ACETYLENE PRESSURE.
20 PSI
10 PSI
Close Valves
(Turn clockwise.)
Setup
Oxygen
Regulator
(9)
Close Regulators
(Turn counterclockwise until loose.)
Leak Test 1 Step 1
2. Open the cylinder valves turning counterclockwise
only until the gas starts flowing.
WARNING! Only open
Acetylene Cylinder Valve
1/4 to 1/2 turn.
Acetylene
Regulator
(10)
Leak Test 1 Step 3: Set Testing Pressures
4. Check all connections for leaks using soapy water:
• If leaks are found, tighten connections.
Welding
Acetylene
Cylinder
(14)
• If a leak persists, discontinue use
and call gas supplier.
Oxygen
Cylinder
(13)
• If no leaks are found with this test,
move on to the Gauge Monitoring test.
Leak Test 1 Step 2: Open Cylinder Valves
Tool Set Up 3 of 3 - Second Leak Test: Gauge Monitoring
Cutting
This test detects minor leaks.
3. Monitor gauges on both regulators for five minutes.
1. Follow all steps in the Soapy Water test above
to prepare for the gauge monitoring test.
Acetylene
Delivery
Pressure
Acetylene
Cylinder
Pressure
Oxygen
Delivery
Pressure
Oxygen
Cylinder
Pressure
2. Close both cylinder valves, turning clockwise.
Maintenance
Acetylene
Cylinder
(14)
Oxygen
Cylinder
(13)
Acetylene
Regulator
(10)
Oxygen
Regulator
(9)
Leak Test 2 Step 3: Monitor Gauges
• If the readings do not change, the test is
completed and the system has no leaks.
Leak Test 2 Step 2: Close Cylinder Valves
Page 8
• If any reading changes, there is a leak on
that side of the system. Follow Gauge Leak
Analysis on the next page to diagnose.
For technical questions, please call 1-888-866-5797.
Item 65818
Gauge Leak Analysis
Oxygen shown.
(Procedure also applies to acetylene.)
leak
inside
regulator
leak after
regulator
Have the regulator repaired by a qualified technician.
Oxygen shown.
If Cylinder gauge moves as shown,
and Delivery gauge stays still
THEN
leak
before
regulator
If Delivery Pressure decreases The leak is at the regulator outlet connection,
within the hose, at the torch inlet connection
or at the Torch Valve on the Torch Handle.
Setup
If the Cylinder Pressure decreases
and the Delivery Pressure increases There is a leak in the regulator seat.
(Procedure also applies to acetylene.)
If Delivery gauge moves as shown
THEN
Safety
If gauges move as shown
1. Release pressure from the system.
2. Tighten the regulator outlet connection.
3. Tighten the Torch Handle Inlet connection.
4. Repeat Gauge Leak Test.
a. If the gauges do not change, the test is
completed and the system has no leaks.
b. If the connections are still leaking, have the
regulator, Torch Handle, and hoses examined by
a qualified technician. If the hoses are leaking,
replace them, do not attempt to repair the hoses.
No Leaks Found
DANGER! To prevent serious injury
and DEATH:
DO NOT TIGHTEN OR ADJUST
ANY CONNECTION between
the cylinder and cylinder valve, or
force the cylinder valve.
If the cylinder valve is leaking, move the cylinder
outside and notify your gas supplier immediately.
If the leak testing has been completed and the unit is
found to be working properly, open the cylinder valves,
turning counterclockwise, and proceed to operation.
WARNING! Only open Acetylene Cylinder Valve
1/4 to 1/2 turn to allow quick shutoff.
Acetylene
Cylinder
(14)
1. Release pressure from the system.
Cutting
If Cylinder Pressure decreases
but the Delivery Pressure remains constant The leak is at cylinder valve or connection
between regulator and cylinder valve.
Oxygen
Cylinder
(13)
2. Tighten the connection between
regulator and cylinder valve.
3. Repeat Gauge Leak Test.
a. If the gauges do not change, the test is
completed and the system has no leaks.
b. If the connection still leaks try
with a different cylinder.
c. If the connection leaks with the
different cylinder, have the regulator
examined by a qualified technician.
Item 65818
Welding
THEN
Open Cylinder Valves Only After Testing
Confirms There Are No Leaks
WARNING! KEEP WRENCH ON CYLINDER’S VALVE
whenever cylinder is in use to allow
quick shutoff in case of emergency.
For technical questions, please call 1-888-866-5797.
Page 9
Maintenance
Oxygen shown.
(Procedure also applies to acetylene.)
Welding
Safety
Welding Tip Pressure Settings
This Torch Handle is capable of welding metals from 1/32″ up to 1-1/4″ thick.
The included Welding Nozzle, size 0, will weld metals up to 1/16″ thick.
Check the thickness of the metals to be welded and use the chart below to choose the size nozzle for the job.
If welding metals other than 1/32″ to 1/16″ thick, a different welding nozzle will be needed.
Note: Welding the thicker metals noted below will require special techniques,
such as edge chamfering, that are outside the scope of this manual.
Table A: Welding Nozzle Flow Data
Metal
Tip Orifice Oxygen
Nozzle
Thickness
Diameter Pressure
Size
(inches)
(inches)
(PSIG)
Acetylene
Pressure
(PSIG)
Acetylene
(CFH)
Setup
1/32
000
0.024
3~5
3~5
1~2
3/64
00
0.028
3~5
3~5
1.5~3
1/16
0
0.031
3~5
3~5
1.7~3.4
5/64
1
0.035
3~5
3~5
2~4
3/32
2
0.039
3~5
3~5
3~6
1/8
3
0.051
3~6
3~6
5~10.5
1/4
4
0.067
4~6
4~6
8.5~19
3/8
5
0.079
5~7
5~7
11.5~26
1/2
6
0.091
6~8
5~8
15~35
1-1/4
7
0.126
8~10
8~10
30~60
Welding
Torch
Handle (7)
Oxygen (OXY)
Torch Valve
Welding
Nozzle (8)
Cutting
Acetylene (GAS)
Torch Valve
Maintenance
Page 10
For technical questions, please call 1-888-866-5797.
Item 65818
Welding Instructions
Inspect tool before use, looking for leaking, damaged, loose, and missing parts.
If any problems are found, do not use tool until repaired.
2. Close both valves on the Torch Handle securely.
3. Adjust the Acetylene and Oxygen Regulators
to their proper working pressures,
see Table A on page 10.
DO NOT EXCEED 15 PSI
ACETYLENE PRESSURE.
Acetylene Delivery Pressure
DO NOT EXCEED 15 PSI.
Oxygen Delivery
Pressure
Oxygen (OXY)
Torch Valve
Oxygen
Regulator
(9)
Acetylene (GAS)
Torch Valve
Welding Step 2: Close Valves
Acetylene
Regulator
(10)
Setup
1. Set up for welding according to
instructions on pages 6-9.
Safety
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual
including all text under subheadings therein before set up or use of this product.
Welding Step 3: Set Welding Pressures
See Table A on page 10.
Maintenance
Cutting
Welding
4. Hold the Torch Handle in one hand
and the striker in the other hand.
Item 65818
For technical questions, please call 1-888-866-5797.
Page 11
5. Open the Acetylene Torch Valve about 1/4 turn,
and quickly ignite the acetylene gas
coming out of the Nozzle by squeezing the
handle of the striker, creating a spark.
SAFETy
WARNINg! Do not use matches or a
butane lighter to light the Torch.
Striker (3)
Acetylene (gAS)
Torch Valve
7. Flame Adjustment:
a. Starting to Add Oxygen:
Slowly open the Oxygen Torch Valve.
The flame will change to a carbonizing flame with
a blue/white inner core, a white halo surrounding
the core and a light orange flame as shown
in Welding Step 7 illustration, below left.
b. proper Oxygen Mix:
Continue slowly opening the Oxygen Torch Valve
until the large light orange section of the flame
becomes nearly colorless and the center of the
flame has a white core with little or no halo.
This is the “neutral” flame
needed for operation as shown in
Welding Step 7 illustration, below center.
1/4 turn
SETUp
Welding Step 5: Lighting Acetylene
6. Put the striker down on a fireproof surface.
Slowly open the Acetylene Torch Valve
farther until the flame feathers at its
edge slightly, as shown below.
c. Too Much Oxygen:
If you open the Oxygen Torch Valve too far, the
large section of the flame will be bluish-orange
and the inner core will be small as shown
in Welding Step 7 illustration, below right.
Close the Oxygen Torch Valve slightly until you
achieve the flame described in step b above.
WARNINg! Wear appropriate welding goggles.
Welding Step 6: Slowly Open
Acetylene Torch Valve Until Flame Feathers
8. After the flame is adjusted as explained
and illustrated, proceed with welding.
WELdINg
Note: Oxygen-acetylene welding is a
two-handed process:
one hand controls the torch,
while the other hand controls a filler rod (sold
separately).
Proper welding techniques and weld preparation
are outside the scope of this manual.
Welding books and classes are recommended
to teach proper methods and technique.
9. After welding, follow shutdown
instructions on facing page.
CUTTINg
Light
Orange
Flame
MAINTENANCE
White
Acetylene
Halo
Bluish
Core
a. Starting to Add Oxygen
Nearly
Colorless
Flame
Open Oxygen Torch
Valve Slightly
BluishOrange
Flame
Little or
No Halo
Close Oxygen Torch
Valve Slightly
Blue-White
Core
b. proper Oxygen Mix
Small, Less
Bright Core
c. Too Much Oxygen
Welding Step 7: Welding Flame Adjustment
Page 12
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Item 65818
Welding Shutdown Instructions
Note: If the tank gauge still has pressure,
the Oxygen Regulator needs to be opened.
1
Bleed pressure on
both gauges to 0
Oxygen (OXY)
Torch Valve
2
Shutdown Step 1: Close Torch Valves
2. Fully close both cylinder valves, turning clockwise.
Shutdown Step 4: Open Oxygen Valve
Safety
4. Open the Oxygen Torch Valve counterclockwise
to allow all the pressure to bleed out.
Setup
1. After work is complete,
first close the Oxygen Torch Valve clockwise,
then close the Acetylene Torch Valve clockwise.
5. After releasing pressure, turn the Acetylene
Pressure Adjusting Screw counterclockwise
and remove it from its Regulator.
Acetylene
Cylinder
Then, turn the Oxygen Pressure Adjusting Screw
counterclockwise and remove it from its Regulator.
Welding
IMPORTANT! Failure to release all pressure on
the Regulators may permanently damage them.
Shutdown Step 2: Close Cylinder Valves
3. Open the Acetylene Torch Valve counterclockwise
to allow all the pressure to bleed out.
Note: If the tank gauge still has pressure,
the Acetylene Regulator needs to be opened.
Bleed pressure on
both gauges to 0
Oxygen
Regulator
Acetylene
Regulator
Shutdown Step 5: Close Regulators
(Turn counterclockwise and remove.)
6. Lastly, close the Acetylene Torch Valve clockwise,
and close the Oxygen Torch Valve clockwise.
Cutting
Oxygen
Cylinder
Acetylene (GAS)
Torch Valve
Shutdown Step 3: Open Acetylene Valve
1
Shutdown Step 6: Close Torch Valves
Item 65818
For technical questions, please call 1-888-866-5797.
Page 13
Maintenance
2
Cutting
Safety
Cutting Tip Pressure Settings
The Cutting Attachment is used to cut metal up to 3″ thick.
The included tip, size 0, cuts metal up to 1/2″ thick.
Check the thickness of the metal to be cut and use the chart below to choose the appropriate size tip for the job.
If cutting metals over 1/2″ thick, a different tip will be needed.
Table B: Cutting Tip Flow Data
Cutting
Thickness
(inches)
Standard
Nozzle
Size
Cutting Oxygen Acetylene
Pressure
Pressure
(PSIG)
(PSIG)
1/2
0
30~35
3~5
20~24
Speed
(IPM)
Setup
3/4
1
30~35
3~5
17~21
1-1/2
2
40~45
3~7
13~17
2-1/2
3
45~50
4~10
10~13
3
4
45~50
5~10
9~12
The Cutting Attachment is attached to the Torch Handle and a Cutting Tip
is attached to the end of the Cutting Attachment.
Pre-heat Oxygen Valve: Adjusts pre‑heat flame oxygen level.
Oxygen Cutting Lever: Activates extra flow of oxygen for cutting.
Cutting Attachment (5)
Welding
Oxygen
Cutting
Lever
Torch
Handle (7)
Oxygen (OXY)
Torch Valve
Cutting
Tip (6)
Cutting
Pre-heat
Oxygen Valve
Acetylene (GAS)
Torch Valve
Maintenance
Page 14
For technical questions, please call 1-888-866-5797.
Item 65818
Cutting Instructions
Inspect tool before use, looking for leaking, damaged, loose, and missing parts.
If any problems are found, do not use tool until repaired.
2. Close all valves on the Torch Handle
and Cutting Attachment securely.
3. Adjust the Acetylene and Oxygen Regulators
to their proper working pressures, see
Table B on page 14.
DO NOT EXCEED 15 PSI
ACETYLENE PRESSURE.
Acetylene Delivery Pressure
DO NOT EXCEED 15 PSI.
Oxygen Delivery
Pressure
Pre-heat
Oxygen Valve
Oxygen (OXY)
Torch Valve
Acetylene (GAS)
Torch Valve
Oxygen
Regulator
(9)
Acetylene
Regulator
(10)
Setup
1. Set up for cutting according to
instructions on pages 6-9.
Safety
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual
including all text under subheadings therein before set up or use of this product.
Cutting Step 2: Close Valves
Cutting Step 3: Set Cutting Pressures
See Table B on page 14.
Maintenance
Cutting
Welding
4. Hold the Torch Handle in one hand
and the striker in the other hand.
Item 65818
For technical questions, please call 1-888-866-5797.
Page 15
5. Open the Acetylene Torch Valve about 1/4 turn,
and quickly ignite the acetylene gas
coming out of the Nozzle by squeezing the
handle of the striker, creating a spark.
SAFETy
WARNINg! Do not use matches or a
butane lighter to light the Torch.
8. Flame Adjustment:
a. Starting to Add Oxygen:
Slowly open the Pre-heat Oxygen Valve.
The flame will change to a carbonizing flame
with a blue/white inner core, a white halo
surrounding the core and a light orange flame as
shown in Cutting Step 8 illustration, below left.
b. proper Oxygen Mix:
Continue slowly turning the Pre-heat Oxygen
Valve until the large light orange section of the
flame becomes nearly colorless and the center of
the flame has a white core with little or no halo.
This is the “neutral” flame
needed for operation as shown in
Cutting Step 8 illustration, below center.
SETUp
Striker (3)
1/4 turn
Acetylene (gAS)
Torch Valve
Cutting Step 5: Lighting Acetylene
6. Put the striker down on a fireproof surface.
Slowly open the Acetylene Torch Valve
farther until the flame feathers at its
edge slightly, as shown below.
c. Too Much Oxygen:
If you open the Pre-heat Oxygen Valve too far,
the large section of the flame will be
bluish-orange and the inner core will be small as
shown in Cutting Step 8 illustration, below right.
Close the Pre-heat Oxygen Valve slightly until
you achieve the flame described in step b above.
WARNINg! Wear appropriate welding goggles.
9. After the flame is adjusted as explained
and illustrated, proceed with cutting:
WELdINg
Cutting Step 6: Slowly Open
Acetylene Torch Valve Until Flame Feathers
7. do not squeeze the Oxygen Cutting Lever.
Open the Oxygen Torch Valve.
a. Heat the edge where starting
the cut until it is red hot.
WARNINg! Start the cut at the edge of the
workpiece.
If done improperly, attempting to start a cut in the
middle of the workpiece will splash molten metal
back at the operator. do not attempt to start a
cut in the middle of a workpiece unless properly
trained in safe methods of starting these cuts.
b. After preheating, press the
Oxygen Cutting Lever and slowly guide the
torch along the cut line to cut the metal.
CUTTINg
Oxygen (OXy)
Torch Valve
10. After cutting, follow shutdown
instructions on facing page.
Cutting Step 7: Open Oxygen Torch Valve
Light
Orange
Flame
MAINTENANCE
White
Acetylene
Halo
Nearly
Colorless
Flame
Open pre-heat
Oxygen Valve Slightly
Bluish
Core
a. Starting to Add Oxygen
BluishOrange
Flame
Little or
No Halo
Close pre-heat
Oxygen Valve Slightly
Blue-White
Core
b. proper Oxygen Mix
Small, Less
Bright Core
c. Too Much Oxygen
Cutting Step 8: pre-heat Flame Adjustment
Page 16
For technical questions, please call 1-888-866-5797.
Item 65818
1. After work is complete,
first close the Oxygen Torch Valve clockwise,
then close the Acetylene Torch Valve clockwise.
Oxygen (OXY)
Torch Valve
1
4. Open the Oxygen Torch Valve counterclockwise and
open the Pre‑heat Oxygen Valve counterclockwise
to allow all the pressure to bleed out.
Note: If the tank gauge still has pressure,
the Oxygen Regulator needs to be opened.
Bleed pressure on
both gauges to 0
Safety
Cutting Shutdown Instructions
Oxygen (OXY)
Torch Valve
2
Shutdown Step 1: Close Torch Valves
2. Fully close both cylinder valves, turning clockwise.
Pre-heat
Oxygen Valve
Shutdown Step 4: Open Oxygen Valves
Setup
Acetylene (GAS)
Torch Valve
5. After releasing pressure, turn the Acetylene
Pressure Adjusting Screw counterclockwise
and remove it from its Regulator.
IMPORTANT! Failure to release all pressure on
the Regulators may permanently damage them.
Welding
Oxygen
Cylinder
Then, turn the Oxygen Pressure Adjusting Screw
counterclockwise and remove it from its Regulator.
Shutdown Step 2: Close Cylinder Valves
3. Open the Acetylene Torch Valve counterclockwise
to allow all the pressure to bleed out.
Note: If the tank gauge still has pressure,
the Acetylene Regulator needs to be opened.
Bleed pressure on
both gauges to 0
Oxygen
Regulator
Acetylene
Regulator
Shutdown Step 5: Close Regulators
(Turn counterclockwise and remove.)
6. Lastly, close the Acetylene Torch Valve clockwise,
and close the Oxygen Torch and
Pre‑heat Oxygen Valves clockwise.
Cutting
Acetylene
Cylinder
Acetylene (GAS)
Torch Valve
Shutdown Step 3: Open Acetylene Valve
Acetylene (GAS)
Torch Valve
Pre-heat
Oxygen Valve
Shutdown Step 6: Close Valves
Item 65818
For technical questions, please call 1-888-866-5797.
Page 17
Maintenance
Oxygen (OXY)
Torch Valve
Maintenance Instructions
Safety
Procedures not specifically explained in this manual must
be performed only by a qualified technician.
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Close the oxygen, then acetylene and allow the torch to cool completely, then disconnect
the hoses before performing any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY FROM TOOL FAILURE:
Do not use damaged equipment. If abnormal noise, vibration, or leaking
gas occurs, have the problem corrected before further use.
Setup
1. BEFORE EACH USE, inspect the general condition
of the Torch Kit. Check for loose hose connections,
cracked or worn hoses, and any other condition that
may affect its safe operation.
If any abnormal condition occurs or is noticed, have
the problem corrected before further use.
Do not use damaged equipment.
2. Periodically use a tip cleaner to clean
out Cutting Tip and Welding Nozzle.
Welding
3. To clean the outer body of the Cutting Attachment,
use a clean, dry, cloth. Do not immerse any
part of the Cutting Attachment in ANY liquid.
Do not use solvents or other flammable
agents to clean the Cutting Attachment.
MAINTENANCE CHART
Before
Maintenance Type
Use
Inspect tool for damage.
Use tip cleaner to
clean tip opening.
Wipe off with clean, dry cloth.
NEVER USE SOLVENTS
TO WIPE DOWN THIS
CUTTING ATTACHMENT.
X
X
After
Use
X
X
X
Troubleshooting
Problem
Before turning
on Torch, gas
odor is noticed.
Cutting
Flame is irregular.
Possible Causes
1. Hose connections loose.
2. Crack in hose.
Likely Solutions
1. Tighten all connections.
2. Check hoses. If any cracks are found, replace entire hose.
DO NOT PATCH OR TAPE GAS HOSES.
3. Cylinder leak at neck.
3. Check neck area of cylinders.
If cracks or damage are found, do not use.
Secure upright, in a well‑ventilated area, well away from
sources of ignition. Contact gas supplier IMMEDIATELY.
Replace cylinders before proceeding with work.
1. Cutting tip clogged or dirty. 1. Close gas, oxygen first, then acetylene.
Let Torch cool completely.
Remove Tip, check for dirt and debris.
Use tip cleaner to clean Tip or replace if necessary.
2. Gas low.
2. Check gas level and refill if needed.
Maintenance
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect air supply before service.
Page 18
For technical questions, please call 1-888-866-5797.
Item 65818
Parts List and Assembly Diagram
1
2
3
4
5
6
7
Description
Carrying Case
Shade #5 Goggles
Striker
Hose Assembly
Cutting Attachment
Cutting Tip
Torch Handle
2
Qty
1
1
1
1
1
1
1
Part
8
9
10
11
12
13
14
Description
Welding Nozzle
Oxygen Regulator
Acetylene Regulator
Check Valve (OX)
Check Valve (AC)
Oxygen Cylinder (not shown)
Acetylene Cylinder (not shown)
Qty
1
1
1
1
1
1
1
Safety
Part
1
Setup
5
6
7
8
4
9
10
Welding
3
11
Record Product’s Serial Number Here:
Note: If product has no serial number,
record month and year of purchase instead.
Cutting
12
Note: Some parts are listed and shown for
illustration purposes only, and are not available
individually as replacement parts.
Maintenance
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS
QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY
STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY
ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
Item 65818
For technical questions, please call 1-888-866-5797.
Page 19
Limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure
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 90 days 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.
To take advantage of this warranty, the product or part
must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation
of the complaint must accompany the merchandise. If
our inspection verifies the defect, we will either repair
or replace the product at our election 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.
This warranty gives you specific legal rights and you may
also have other rights which vary from state to state.
Table C: Heating Nozzle Flow Data
Acetylene
Pressure
(PSIG)
Oxygen
Pressure
(PSIG)
4
8~12
6~10
7~22
6~20
6
10~15
8~12
15~44
14~40
8
20~30
10~15
33~88
30~80
Nozzle
Size
Acetylene Oxygen
(CFH)
(CFH)
Note: A heating nozzle may be used with this kit, but is not included. Chart provided for reference only.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • 1-888-866-5797
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