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Read all Instruction, SAVE THESE INSTRUCTION
Safety, Set-Up, and Operating Instructions
Gas Welding, Cutting, Brazing & Heating
There are many hazards to be considered when using oxy-fuel
welding, cutting, brazing and heating equipment. Proper safety
precautions must be taken when using such equipment.
Read, understand, and implement all safety precautions prior
to performing any welding, cutting, heating or brazing
operation!
This handbook is offered as a practical guide to the safe
operation of this equipment.
handle and the regulator during use of the welding
outfit. Check valves are used to prevent mixed
gases from flowing back into the hoses or regulators.
Oxygen or fuel separately are not explosive.
However, when the two are mixed together in a hose
or regulator they can ignite and cause an explosion,
resulting in injury or damage.
This Outfit comes complete with Torch Handle
Reverse Flow Check Valves.
(Note: See page 14 for check valve maintenance.)
Reverse flow check valves should
always be used between the torch
1
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Summary of Contents for Gentec 140T with 141C
- Page 1 Read all Instruction, SAVE THESE INSTRUCTION Safety, Set-Up, and Operating Instructions Gas Welding, Cutting, Brazing & Heating There are many hazards to be considered when using oxy-fuel welding, cutting, brazing and heating equipment. Proper safety precautions must be taken when using such equipment. Read, understand, and implement all safety precautions prior to performing any welding, cutting, heating or brazing operation!
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Page 2: Important Safeguards
Introduction This booklet contains information and instructions that are intended for experienced operators and those who are working under the close supervision of skilled welders. Operation and maintenance of the welding and cutting equipment should conform to the provisions of ANSI standard Z49.1, “Safety in Welding &... - Page 3 7. Do not carry lighters, matches or other flammable objects in pockets when welding or cutting. 8. Always be aware of others around you when using a torch. 9. Be careful not to let welding hoses come into contact with torch flame or sparks from cutting. 10.
- Page 4 16. Always purge the system after use. When shutting down, close cylinder valves, then bleed the system by emptying both hoses independently. First, open torch oxygen “oxy” needle valve, drain line until pressure is zero, then close “oxy” needle valve. Repeat process with torch fuel needle valve.
- Page 5 SET UP AND OPERATING GUIDE 1. Secure cylinders. (As noted in safety precautions.) 2. While standing to one side, “crack” each cylinder valve. (fig. 2) “Cracking” is to quickly open and close the valve, allowing gas to escape and clearing the valve of any foreign material.
- Page 6 3. Attach regulators to proper cylinders and tighten securely with a wrench. (fig. 3) Make sure they are tightened in correct directions. (Normally clockwise for oxygen and counterclockwise for acetylene.) fig. 3 Attaching Oxygen Regulator Never stand in front of or in back of a regulator when opening a cylinder valve.
- Page 7 fig. 4 Regulator Adjustment 5. Both cylinder valves and regulator connections should be checked for leaks. Stand so the cylinder valve is between you and the regulator. Slowly open cylinder valve. (fig. 5) An approved leak detector should be used. Acetylene cylinder valve should be opened a maximum of one turn.
- Page 8 6. Connect proper hose to regulator. (Green to oxygen and red to acetylene.) Tighten nuts securely with wrench. (fig. 6) If any sign of oil or grease is found, discon- tinue use immediately. 7. Blowing out hoses: Do this to one regulator at a time and in a well ventilated area to avoid creating conditions for fires or explosions.
- Page 9 8. Connect hoses to the check valve that is installed on the torch handle. (Oxygen is right-handed and fuel gas is left-handed.) (fig 7) If any traces of oil or grease are found, do not use. Contact your supplier immediately. fig.
- Page 10 fig. 8 Check for “o” rings 10. Check all connections for leaks. Adjust regulators to normal operating pressure and, using an approved leak detection solution, check for leaks at all connections. If leaks are found tighten nuts more securely. If leaks still persist, discontinue use and call your supplier.
- Page 11 11. Neutral flame adjusting a. Refer to cutting tip or welding 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.
- Page 12 fig. 11 Adjusting Flame f. Turn on the acetylene torch valve slowly until smoke subsides and the flame jumps away from the end of the tip slightly. (fig. 11) g. Slowly open the oxygen valve until a brilliant neutral flame is reached. (fig. 12) (If the flame has a smooth inner cone the flame is neutral) Flame setting is increased by opening the torch control valves or increasing the operating pressure.
- Page 13 Proper Flame. A neutral flame (fig. 13) is used for almost all gas welding. The oxy-acetylene flame consumes all oxygen in the air around the welding area, which leaves an uncontami- nated weld area and a weld of maximum strength. An oxidiz- ing flame is rarely used, but a carburizing flame is occasionally helpful when flame hardening or brazing.
- Page 14 Shutting Down Equipment 1. Turn off oxygen valve on torch, then turn off acetylene valve on torch. 2. Close both cylinder valves. 3. Open the oxygen control valve and release the pressure in the hose and regulator. 4. Close the oxygen control valve. 5.
- Page 16 READ ALL INSTRUCTIONS, SAVE THESE INSTRUCTIONS 9-WI9CV-1198...