Matco Tools OXW80A User manual

Table of Contents
Foreword...................................................................................1
Product Information...................................................................2
Important Safety Precautions to Remember..............................4
Schematic Illustration of
the Oxyacetylene Torches & Regulators...................................5
Set up & Operation Guide.........................................................8
Shutting Down Equipment.......................................................14
Tip Selection & Working Pressure of Regulators....................15
FOREWORD
KNOW AND USE ALL SAFETY PRECAUTIONS BEFORE ANY CUTTING
OR WELDING OPERATION!
There are many hazards to be considered when using oxy-fuel welding and
cutting equipment. Proper safety precautions must be taken when using
such equipment. This handbook offers a practical guide to the safe operation
of this equipment. We suggest you to read this handbook thoroughly before
using this equipment.
1

COMPLETE OXYACETYLENE WELDING OUTFIT
PARTS BREAKDOWN
OXW80A-01
OXW80A-02
OXW80A-03
OXW80A-04
OXW80A-05
OXW80A-06
OXW80A-07
OXW80A-08
PART NO.
INDEX
NO. DESCRIPTION QTY.
1
2
3
4
5
6
7
8
Goggles
15' Twin Hose Set with Fittings
(includes both hoses red & green)
Sparklighter
Oxygen Regulator
Acetylene Regulator
Adjusting Screw
Cutting Tip #0
Hand Cutting Attachment
1
1
1
1
1
2
1
1
Parts List
Model: Product Type:
3
Model: Product Type:
Read these instructions carefully before
installing, operating, servicing or repairing this tool.
Keep these instructions in a safe accessible place.
Important
PRODUCT INFORMATION:
COMPLETE OXYACETYLENE WELDING OUTFIT
OXW80A
2
Unpacking
When unpacking check the parts diagram and part number listing on
page 3 to make sure all parts are included. In any parts are missing
or damaged, please call you distributor.
COMPLETE OXYACETYLENE WELDING OUTFIT
OXW80A
• Cuts up to 6" (150mm), welds up to 3/8" (9mm) steel
• Torch handle has two stainless steel needle valves
for fast accurate flame adjustment
• Made of tough extruded brass with extra wall thickness
that adds strength & durability to the torch handle
• No screws or soldered parts add to ease
of torch handle maintenance
• Cutting attachment features a double o-ring seal
quick, tight & leak-free connection
• Forged brass head & body and stainless steel
tube construction add long life to the cutting attachment
• Cutting attachment features a press lever for easy cutting
• Each piece of the nozzle has a swaged elbow tip that
can individualize the spiral mixer
• Kit includes:
- #OXW80A-01 Goggles
- #OXW80A-02 15' Twin Hose Set with Fittings
(includes both hoses red & green)
- #OXW80A-03 Sparklighter
- #OXW80A-04 Oxygen Regulator
- #OXW80A-05 Acetylene Regulator
- #OXW80A-06 Adjusting Screw
- #OXW80A-07 Cutting Tip #0
- #OXW80A-08 Hand Cutting Attachment
- #OXW80A-09 Torch Handle
- #OXW80A-10 Heating Nozzle #6
- #OXW80A-11 Welding Tip #4
- #OXW80A-12 Welding Tip #2
- #OXW80A-13 Welding Tip #0
- #OXW80A-14 Tip Cleaners
- #OXW80A-15 O-Ring Set
- #OXW80A-16 Oxygen Check Valve
- #OXW80A-17 Acetylene Check Valve
OXW80A-09
OXW80A-10
OXW80A-11
OXW80A-12
OXW80A-13
OXW80A-14
OXW80A-15
OXW80A-16
OXW80A-17
PART NO.
INDEX
NO. DESCRIPTION QTY.
9
10
11
12
13
14
15
16
17
Torch Handle
Heating Nozzle #6
Welding Tip #4
Welding Tip #2
Welding Tip #0
Tip Cleaners
O-Ring Set
Oxygen Check Valve
Acetylene Check Valve
1
1
1
1
1
1
2
1
1
12
4
6
5
7916
17
11
10
12 13
14
8
3
6
15

5
REGULATOR PARTS
DELIVERY PRESSURE GAUGE CYLINDER PRESSURE GAUGE
INLET CONNECTION
OUTLET CONNECTION
PRESSURE ADJUSTING SCREW
IMPORTANT SAFETY PRECAUTIONS TO REMEMBER
• ALWAYS have fire extinguisher accessible.
• Never use oxygen or fuel gas to blow soot or dirt from your clothes.
Do not wear torn or ragged clothes; Sparks can ignite the ragged ends.
• Always use goggles or helmet with proper lens with shade.
• Do not use shaded safety spectacles or face shield visors for cutting or
welding. They do not meet the requirements to prevent harmful rays from
damaging your eyes.
• Use gauntlet type gloves made of heat-resistant leather asbestos
or asbestos substitute.
• Secure cylinders to cart, wall or post to prevent them from falling.
• All cylinders should be used and stored in an upright position.
• Never drop or strike a cylinder. Do not use cylinders that have been dented.
• Cylinder caps should be used when storing or moving cylinders.
• Empty cylinders should be kept in specified areas and clearly marked “Empty”.
• NEVER use oil or grease on any inlet connections,
outlet connections or cylinder valves.
• Examine hoses for cuts, burns, or worn areas before each use.
Also inspect fittings for damage. If any damaged areas are found,
replace immediately.
• Do not repair hose with friction tape.
• ALWAYS use reverse-flow check valves on torch and regulator.
This greatly reduces the possibility of mixing gases in the regulator or
hoses. Reverse-flow check valves is an important safety precaution.
• Working pressure on acetylene regulator should NEVER be set above 15psi.
4

7
CUTTING ATTACHMENT WITH PRINCIPAL PARTS
HIGH PRESSURE
CUTTING OXYGEN LEVER
CUTTING ATTACHMENT HEAD
MIXING CHAMBER COUPLING NUT
PRE-HEAT OXYGEN
CONTROL VALVE
6
VARIOUS PARTS OF A WELDING TORCH HANDLE
OXYGEN CONTROL VALVE
VALVE BODY
TORCH HEAD
HANDLE
FUEL GAS CONTROL VALVE
MIXER & WELDING TIP WITH PRINCIPAL PARTS
MIXER BODY CONE END
COUPLING NUT
WELDING TIP

9
FIG. 3
FIG. 2
4. Regulator adjusting screws should be turned counter-clockwise to relieve
pressure on diaphragm before opening cylinder valves. (Fig. 3)
If this is not done, pressure from cylinder can damage diaphragm
and render regulator inoperable.
8
SET UP AND OPERATION GUIDE
1. Secure cylinder. (As noted in safety precautions.)
2. While standing to one side, “crack” each cylinder valve. (Fig.1) “Cracking” is to
quickly open and close the valve, allowing gas to escape and clearing the valve
of any foreign material.
CAUTION:
If oil or grease is found, discontinue use of cylinder immediately
and contact your supplier.
FIG. 1
3. Attach regulators to proper cylinders. A wrench should be used to ensure tight
connections. (Fig. 2) Make sure they are tightened in correct directions.
(Normally it is clockwise for Oxygen and counterclockwise for Acetylene.)

8. Connect hoses to proper connection on torch handle.
(Oxygen is on the right and fuel gas is on the left.) (Fig. 6)
CAUTION:
If any traces of oil or grease are found, do not use.
Contact your supplier immediately.
9. Always use reverse flow check valves on torch handles.
11
FIG. 5
FIG. 6
5. Both cylinder valve to regulator connections should be checked for leaks.
Place the cylinder valve between you and the regulator. Slowly open
cylinder valve. (Fig. 4) An approved leak detector should be used.
CAUTION:
Acetylene cylinder valve should be opened for a maximum of one turn.
10
FIG. 4
6. Connect proper hose to regulator. (Green to oxygen and red to acetylene)
Tighten nuts securely with wrench. (Fig. 5) If any sign of oil or grease is found,
discontinue use immediately.
7. Blowing out hoses – Perform this instruction on one regulator at a time and in
a well-ventilated area, otherwise it may create conditions for fires or explosions.
A. Turn oxygen regulator adjusting screw to allow 5PSIG pass through hose.
B. Allow oxygen to flow approximately 10 seconds to purge the hose.
C. Repeat these steps for acetylene regulator.
NOTE:
New hose contains a preservative talc.
This talc must be blown out before using.

13
FIG. 8
E. Turn on the acetylene torch valve about 1/4 of a circle and ignite the
acetylene gas coming out of the tip.
CAUTION:
Always point torch away from any person when lighting.
F. Turn on the acetylene torch valve slowly until smoke subsides and the
flame jumps away from the end of the tip slightly. (Fig. 9)
FIG. 9
12
10. Connect welding tip or cutting attachment to torch handle. Always check cone
end, coupling nut and torch head for damage or oil. If either are found,
discontinue use and contact your supplier.
CAUTION:
Two O-Rings on the cone end can’t be damaged or missing; otherwise
gases will mix inside the torch and result in ashback or backres. (Fig. 7)
FIG. 7
11. Check connections for leaks. Adjust regulators to normal operating pressure
and using an approved leak detection solution, check for leaks at hose and
check valve connection. If leaks are found, tighten nut more securely. If leak
still persists, discontinues using and call your supplier.
CAUTION: Never set acetylene regulator at delivery pressure above 15PSIG.
12. Neutral Flame Adjusting
A. Refer to welding tip or cutting nozzle chart
to determine the proper regulator pressures.
B. Open oxygen valve on the torch handle (and the preheat oxygen valve on
cutting attachment), adjust the oxygen regulator to the desired working
pressure. Then close the oxygen valve.
C. Open acetylene valve on the torch handle, adjust the acetylene regulator to
the desired working pressure. Then close the acetylene valve.
D. Hold torch in one hand and spark lighter on the other. (Fig. 8)

15
TIP SELECTION & RECOMMENDED WORKING PRESSURE
OF REGULATORS
Metal Thickness
1/64" - 3/64"
1/32" - 5/64"
3/64" - 3/32"
1/16" - 1/8"
1/8" - 3/16"
3/16" - 1/4"
1/4" - 1/2"
Tip Size
00
0
1
2
3
4
5
Oxygen Pressure
P.S.I.G.
Acetylene Pressure
P.S.I.G.
Min. Max. Min. Max.
3
3
3
3
4
5
6
5
5
5
5
7
10
12
3
3
3
3
3
4
5
5
5
5
5
6
7
8
Welding Tip Chart
Oxyacetylene Multi-flame Heating Tips
Tip
Size
Oxygen Cubic
Feet Per Hour
Min. Max.
Acetylene
Pressure Range
P.S.I.G.
Acetylene Cubic
Feet Per Hour
Min. Max.
Oxygen
Pressure Range
P.S.I.G.
6
8
8-11
10-14
10-14
18-28
14
30
40
80
15
33
44
88
Oxyacetylene Cutting Nozzle Chart
Min. Max.Min. Max.
1/2"
3/4"
0
1
30
30
35
35
3
3
5
5
Oxygen Pressure
P.S.I.G. Acetylene Pressure
P.S.I.G.
Metal Thickness Nozzle Size
14
G. Slowly open the oxygen valve until a brilliant neutral flame is reached.
(Fig. 10) (If the flame has a smooth inner cone, the flame is neutral)
CAUTION:
Always use goggles or eye protection when welding or cutting.
FIG. 10
1. Turn off oxygen valve on torch, and then turn off acetylene valve on torch.
Note:
Reversal of this procedure can cause damages to the torch.
2. Close both cylinder valves.
3. Drain gas from oxygen regulator by opening the oxygen valve on the torch
handle. Repeat this step on acetylenes side.
4. Release adjusting screws on regulators.
This is done by turning them counter-clockwise.
5. ALWAYS use two* wrenches to screw the hose connectors off from
regulator connection:
one wrench of 11/16" (17.5mm) is for hose connectors; the other wrench of
5/8" (16mm) is for outlet connection of regulators.
* If only one wrench if used to unscrew the hose connectors, the regulator
outlet connection may come loose from the regulator body.
SHUTTING DOWN EQUIPMENT
This handbook is offered as a guideline. Please read
this handbook thoroughly before using this equipment.
Also, please remember the safety precautions at the
beginning of this handbook. Safety should always be
considered before any cutting or welding operation.

There must
be 2 O-rings
on the cone end. The absence of
either O-ring can lead to ashback
within the torch handle or cutting
attachment.
For cutting attachment, inspect the
tampered seating surfaces on tip
and in torch head. Have a qualied
technician resurface the seat area if it
has dents, burrs or is burned. A poor
seating surface may result in backre
of ashback.
The following
instructions are
for acetylene gas use only. Contact
your gas supplier for instructions on
the use of other fuel gases.
17
WARNING
NOTICE
WARNING
16
Safety Guidelines BACKFIRE AND FLASHBACK
When the ame goes out with a loud
pop, it is called a backre. Backre
can be caused by
(1) Operating the torch at lower
pressures than required for
the tip used,
(2) Touching the tip against the work,
(3) Overheating tip or,
(4) An obstruction in the tip.
If backre occurs, shut off the
torch handle valves (oxygen
rst) and after remedying the
cause relight the torch.
A ashback is a condition that
results when the ame ashes back
into the torch and burns inside with
a shrill hissing or squealing noise.
If ashback occurs, turn off the
torch handle valves (oxygen rst)
IMMEDIATELY. Flashback generally
indicates a problem that should
be xed. A clogged tip, improper
functioning of the valves, or incorrect
acetylene / oxygen pressure could
lead to ashback. Be certain to nd
the cause before relighting the torch.
WARNING
DANGER
CAUTION
NOTICE
WARNING
WARNING
Flying sparks and
hot metal can cause
injury. Take necessary
precautions to reduce
the possibility of injury from ying
sparks and hot metal.
WARNING
WARNING
Oxy-fuel perations
cause sparks
and heat metal to
temperatures that
can cause severe
burns! Use protective gloves and
clothing when performing any metal
working operation. Take necessary
precautions to reduce the possibility
of skin and clothing burns.
• Keep all clothing and protective
equipment free of oil and
grease.These substances can
ignite and will burn violently in
the presence of pure oxygen.
Always keep an
approved re
extinguisher
accessible while
performing oxy-fuel operations.
Danger means a
hazard that will
cause death or serious injury if the
warning is ignored.
Warning means a
hazard that could
cause death or serious injury if the
warning is ignored.
Caution means a
hazard that may
cause minor or moderate injury if the
warning is ignored. It may also mean
a hazard that will only cause damage
to property.
Notice means
any additional
information pertaining to the product
or its proper usage.
Oxy-fuel
operations
produce intense light and heat and
ultraviolet (UV) rays. The intense
light and UV rays can cause injury
to eyes and skin. Take all
precautions described in the
manual to reduce the possibility of
injury to eyes and skin.
• All person operating this equipment
or in the area while equipment is in
use must wear protective welding
gear including: welding goggles
with a minimum shade 5, ame
resistant clothing, leather welding
gloves, and full foot protection.
• Make sure that all persons in the
welding area are protected from
heat, sparks, and ultraviolet rays.
Use ame resistant barriers
as needed.
• Never touch work pieces until
completely cooled.
Lighting Torch
Before lighting
the torch, follow
all personal and equipment safety
regulation. Wear ltered protective
eyewear (shade 5 minimum) to
protect the eyes from heat, sparks
and hazardous rays of light produced
by the ame. Keep work area well
ventilated.
• Wear ANSI approved face shield
or safety glasses with side shield
protection when chipping
or grinding metal parts.
• Wear ear plugs when welding
overhead to prevent spatter or
slag from falling into ears.
General Safety Operation