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.
Before installing the regulators
“crack the cylinder valves
by opening each valve slightly and then closing. This will
clear the valves of dust or dirt that could be carried to the
regulators and cause damage. Do not discharge flow of
gas at any person or flammable material.
11.
Make sure all connections are tight
. Do not force
connections. Never test for leaks with a flame. Use a
soapy water solution and check for bubbles.
12.
Before lighting the torch purge oxygen and fuel gas
separately
. This will help prevent the improper mixing of
gases.
13.
Always use recommended pressure settings
. Improper
pressures are wasteful. Watch for extreme pressure build
up in the regulators which signifies they need repair.
14.
“Good Housekeeping” in work area is a “must”
.
Prepare your work area by moving out of the vicinity, any
combustible material.
15.
Always have a fire extinguisher handy
.
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. Turn the pressure adjusting screw on the oxygen regulator
counterclockwise until there is no pressure on the adjusting
spring and the screw turns freely.
6. Open the fuel control valve and release the pressure in the
hose and regulator.
7. Close the fuel control valve.
8. Turn the pressure adjusting screw on the fuel regulator
counterclockwise until there is no pressure on the adjusting
spring and the screw turns freely.
9. All pressure gauges should read zero “0” PSI.
Check Valve Maintenance
Leak test check valves at least every six(6) months as follows:
1. Shut off the fuel gas supply and disconnect the hose from
the check valve.
2. Set the oxygen regulator to 5 PSI. Open all gas valves on
the torch or cutting attachment.
3. Plug the tip and check for reverse flow to the fuel gas check
valve. Use soapy water or immerse in water to check for
leaks. Set pressure to zero after the test.
4. Reconnect the fuel gas hose and disconnect the oxygen hose.
5. Repeat steps 2 and 3 using the fuel gas regulator as the
pressure source.
6. Reconnect the hoses and purge the system before use.
