Related Manuals for Hobart 770 500
Summary of Contents for Hobart 770 500
- Page 1 OM-254 957B 2013−12 Processes Oxy-Fuel Welding and Cutting Description Accessory Portable Tote Oxy-Acetylene Cutting and Welding Outfit 770 500 File: Accessory www.HobartWelders.com...
-
Page 2: Table Of Contents
........... . . Hobart is registered to the ISO 9001 Quality System Standard. -
Page 3: Section 1 − Safety Precautions - Read Before Using
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING OXY FUEL 2013−09 Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions. - Page 4 D Do not weld or cut where flying sparks can strike flammable WELDING AND CUTTING can cause material. fire or explosion. D Protect yourself and others from flying sparks and hot metal. D Be alert that welding and cutting sparks and hot materials from Welding and cutting on closed containers, such as tanks, drums, or pipes, can cause them to blow up.
-
Page 5: California Proposition 65 Warnings
FLYING METAL or DIRT can injure eyes. D Welding, cutting, chipping, wire brushing, and grinding cause sparks and flying metal. D Wear welding goggles, or wear welding helmet /welding faceshield over approved goggles/ safety glasses with side shields. 1-3. California Proposition 65 Warnings Welding or cutting equipment produces fumes or gases This product contains chemicals, including lead, known to which contain chemicals known to the State of California to... -
Page 6: Section 2 − Introduction
SECTION 2 − INTRODUCTION Inspect all equipment before use. Do not use damaged, defective, or improperly adjusted welding and cutting equipment. Make sure levers and valves work properly, threads on equipment are clean (no grease or oil) and not deformed, gauges are intact and easy to read, regulator is clean and free of oil or dirt, and fittings are properly sized for the cylinder. -
Page 7: Section 5 − Specifications
SECTION 5 − SPECIFICATIONS 5-1. Equipment Included With The Kit Use only acetylene or propane gas and oxygen with this equipment. Flashback arrestors/check valves are factory installed on the torch handle. Do not remove these com- ponents. The empty (unlabeled) cylinders supplied with this kit must be ex- changed for full cylinders through your local welding gas distributor. -
Page 8: Welding (Brazing) Tip And Gas Pressure Guide
5-3. Welding (Brazing) Tip And Gas Pressure Guide Welding (Brazing) Tip Selection Guide Hobart No. Victor No. Tip Size Material Thickness Fuel Gas Pressure Oxygen Pressure −− Type 13 28 − 22 Gauge 3 − 5 psi (21 − 34 kPa) 3 −... -
Page 9: Section 6 − Installation
SECTION 6 − INSTALLATION 6-1. Installing Cylinders Install cylinders in an upright position by securing to a stationary support or cylinder rack to prevent falling or tip- ping. Maintain a clear path from the cylinders to the work area. Inspect equipment before use. -
Page 10: Installing Regulators On Cylinders
6-2. Installing Regulators On Cylinders Use only acetylene or propane gas and oxygen with this equipment. Do not slightly open or “crack” fuel cylinder valve to blow debris from the valve outlet. Remove the debris us- ing nitrogen, air, or a clean oil-free rag. -
Page 11: Installing Hoses On Regulators
6-3. Installing Hoses On Regulators Use only industrial grade hose. Grade T hose (supplied with kit) is acceptable for all fuel gases. Grade R hose is for acetylene only. Replace hoses at the first sign of any defects, flaws, or dam- age. -
Page 12: Attaching Hoses To Torch Flashback Arrestors/Check Valves
6-4. Attaching Hoses To Torch Flashback Arrestors/Check Valves Do not use petroleum-based pipe sealants. Flashback arrestors/check valves are factory installed on the torch handle. Do not re- move these components. The hex nut on the fuel hose has notches on the corners. The hex nut corners are smooth on the oxygen hose. -
Page 13: Installing Cutting Tip On Cutting Attachment
6-6. Installing Cutting Tip On Cutting Attachment Do not use petroleum-based pipe sealants. NOTICE − Do not drop or mis- handle the cutting tip or the seating surface may be damaged. Cutting tips are available in differ- ent sizes to accommodate various metal thicknesses. -
Page 14: Testing The System For Leaks
6-8. Testing The System For Leaks Leak test the system before lighting the torch. Repeat this procedure every time the equipment is set up or a cylinder is changed. Use an approved oil-free leak detection fluid or leak detec- tor to locate possible leaks. Do not stand in front of or be- hind the regulator when opening the cylinder valve. -
Page 15: Section 7 − Operation
SECTION 7 − OPERATION 7-1. Purging Oxygen From The System And Adjusting Oxygen Pressure Inspect all equipment before use. Do not use damaged, defective, or improperly ad- justed welding and cutting equipment. Make sure levers and valves work properly, threads on equipment are clean (no grease or oil) and not deformed, gauges are in- tact and easy to read, regu-... -
Page 16: Purging Fuel From The System And Adjusting Fuel Pressure
7-2. Purging Fuel From The System And Adjusting Fuel Pressure Inspect all equipment before use. Do not use damaged, defective, or improperly ad- justed welding and cutting equipment. Make sure levers and valves work properly, threads on equipment are clean (no grease or oil) and not deformed, gauges are in- tact and easy to read, regu- lator is clean and free of oil or... -
Page 17: Lighting And Using The Cutting Torch
7-3. Lighting And Using The Cutting Torch Tools Needed: 161-037 / 038 Always purge gas from the system Continue to open the fuel valve until the When Finished Cutting before lighting torch to prevent a black sooty smoke disappears and the NOTICE −... -
Page 18: Lighting And Using The Brazing Tip
7-4. Lighting And Using The Brazing Tip Tools Needed: 161-039 / 040 Always purge gas from the system Lighting The Torch When finished welding/brazing, close the before lighting torch to prevent a oxygen valve on the torch handle first and Hold the spark lighter near the torch tip. - Page 20 Thank you for purchasing Hobart. Our trained technical support team is dedicated to your satisfaction. For questions regarding performance, op- eration, or service, contact us! Resources Available Always provide Model Name and Serial/Style Number. To locate a Service Center: Call 1-800-332-3281 or visit our website at www.HobartWelders.com/wheretobuy...