SWP-104 Oxygen and Acetylene Portable Cutting Torches Safe Work Procedure

Oxygen and Acetylene Portable Cutting Torches Safe Work Procedure WSHMS-02C-SWP-104

Division: RETSD Analysis By: Kildonan-East Staff Date: Sep/13/2006

Department: Kildonan-East Collegiate Supervisor: Frequency: Hourly

Job Title: Automotive Technology & Approved By: JSA Number: AT23

Auto Body Metal

Job Title: Oxygen and Acetylene Portable Job Performed By: Teacher and or students Torches AT23

REQUIRED PERSONAL PROTECTIVE EQUIPMENT: Welding goggles with a #5 glass for welding, CSA approved safety glasses or goggles when not welding, CSA approved steel-toed footwear, 100 % cotton coveralls preferred, welding gloves, and welding beanie when welding overhead, hearing protection when required per RETSD policy. Work in a well ventilated area.

GENERAL NOTES: No lighters, matches or cell phones are allowed in the shop area. Long necklaces, bracelets and rings should be removed. Long hair should be tied back. Strings and hoods hanging from pullovers/sweaters should be removed or tucked inside of coveralls.

JOB SAFETY ANALYSIS:

Step Description Hazard Controls 1 Make sure tanks are secured in Projectile (tank) Make sure tanks are secured in approved portable cart. approved portable cart. (Should be chained in cart). 2 Check the hoses to make sure Gas leak, Flame, Fire, Explosion Check the hoses for holes - do not use if hoses are not in good they appear to be in good condition. Notify teacher/instructor and coworkers if hoses are not in condition. (Checking for leaks) good working condition. Have hoses removed from cylinders. 3 Make sure the pressure Pressure Adjustment screws can become Check your gauges for pressure. Make sure the pressure adjustment adjustment screws are released a projectile screws are released, use your index finger and see if the pressure and have no pressure on them. adjustment screw moves easily when you rock it back and forth.

of 4 Print Date: Sep/13/2006 Oxygen and Acetylene Portable Cutting Torches Safe Work Procedure WSHMS-02C-SWP-104

4 Check area to ensure there is NO Explosion - Oil combined with compressed Ensure that you do not have any oil or oil residue on your hands. OIL on the regulators or oxygen is extremely explosive Wash hands prior to using torch. If coveralls are extremely dirty with anywhere near the cylinders. oil caked on cuff and sleeves, do not use torch, change coveralls. 5 Slightly crack the acetylene A defect in the regulator may cause the STAND ASIDE - Do not face the regulator when opening the cylinder cylinder valve and then turn it 1 glass to blow through, shattering the valve. and 1/2 turns glass and blowing it in your face 6 Slightly crack the oxygen A defect in the regulator may cause the STAND ASIDE - Do not face the regulator when opening the cylinder cylinder valve and then turn until glass to blow through, shattering the valve. it is fully opened. glass and blowing it in your face 7 Open the torch body valve for Acetylene gas and tank may become Acetylene gas is very unstable after 15 psi. Watch your pressure acetylene and turn the pressure unstable carefully when setting. After you have closed your acetylene torch adjustment screw clockwise until body valve the pressure will rise slightly above 5 psi. you have reached the required working pressure of 5 psi and then close the acetylene torch body valve. 8 Open the torch body valve for Watch your pressure carefully when setting. After you have closed oxygen and turn the pressure your oxygen torch body valve the pressure will rise slightly above 10 adjustment screw clockwise until psi you have reached the required working pressure of 10 psi and then close the oxygen torch body valve. 9 Lighting the torch - slightly crack Face injury, Eye injury, fire explosion, Person protective equipment (PPE) should include the following: Eye open the acetylene torch body toxic fumes goggles with a glass shade number from 4-6. Do not use a match to valve and hold the spark lighter light a torch. Do not have cigarette lighters nearby as they may (striker) about an inch above the explode. Always work in a well ventilated area when lighting a torch tip of the torch - strike the and working with a torch. striker and you should have a small flame - increase your acetylene until the flame is long and there is little soot.

10 Slightly crack open the oxygen Burnt hands and or fingers Watch placement of hands, watch others working around you. torch body valve and increase Fire your oxygen until the flame is blue in colour and the flame is neutral. (Brighter center flame is rounded and near the tip) 11 Shutting off the torch: Close the Burnt hands and or fingers Watch placement of hands and fingers - remember torch could still acetylene torch body valve and be hot. then close the oxygen torch body valve. Close the acetylene cylinder valve and then close the oxygen cylinder valve. Open the acetylene torch body valve and check that the pressure drops to zero and then close it again. Open the oxygen torch body valve and check that the pressure drops to zero and then close it again. Release the acetylene pressure adjustment screw by turning counter clockwise and then release the oxygen pressure adjustment screw by turning counter clockwise. Make sure that the pressure adjustment screws for both acetylene and oxygen are finger loose.

AUTHORIZED EMPLOYEE INFORMATION:

ID NUMBER: LAST NAME: FIRST NAME: REMARKS: JOB HISTORY INFORMATION:

DATE: REMARKS:

Approval Signature: Date:

of 4 Print Date: Sep/13/2006