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Portable Oxy-Fuel Welding and Cutting Outfit
Set-Up
(Cont.)
HOSES
Examine the hoses
CAUTION
!
carefully before
each use. If cuts, burns, worn areas or
damaged fittings are found, replace the
hose.
Perform the following procedure to
clear preservative talc if using a new
hose for the first time:
1. Connect the hose to the regulators.
Tighten connections securely with
wrench.
2. Turn regulator adjusting knobs
counter-clockwise to disengage
regulator (no-flow).
3. Slowly open the oxygen cylinder
valve until it is completely open.
Figure 4 - Turning on gas
Figure 5 - Adjusting fuel cylinder valve
Figure 6 - Attaching hoses
www.chpower.com
4. Slowly open the fuel cylinder valve
not more than one full turn (see
Figure 4).
5. Adjust the oxygen regulator to allow
3-5 PSI to escape through the hose.
Allow oxygen to flow 3-5 seconds to
clear hose of preservative.
6. Clear the acetylene hose in the same
manner.
Always clear
CAUTION
!
hoses in a well
ventilated area away from any flames
or other source of ignition.
Figure 7 - Checking O-Rings
Metal Thickness
Tip Size
1/64" - 1/32"
1/32" - 5/64"
1/16" - 3/32"
3/32" - 1/8"
1/8" - 3/16"
3/16" - 1/4"
1/4" - 5/16"
OXY-ACETYLENE CUTTING NOZZLE CHART
Metal Thickness
Nozzle
Size
1/4" - 1/2"
3/8" - 3/4"
OXY-ACETYLENE MULTI-FLAME HEATING TIPS
Tip Size
6
8
Table 1 - Tip Selection and Regulator Pressure Charts
4
SELECTING THE PROPER
ATTACHMENT
WARNING
!
grease, oil or other flammable
substances or damage are present!
Have a qualified technician clean the
torch or repair damage.
1. Attach fuel gas hose (red) to torch
valve marked "Fuel" and the Oxygen
(green) hose to valve marked "Oxy"
(see Figure 6).
2. Inspect torch handle and all
apparatus for dust, dirt, grease, oil,
O-rings
Preheat Gas
Orifices
Oxygen Orifice
Figure 8 - Cutting Tip
WELDING TIP CHART
Oxygen Pressure
P.S.I.G.
Min.
Max
00
3
0
3
1
3
2
3
3
4
4
5
5
6
Oxygen Pressure
P.S.I.G.
Min.
Max
0
30
35
1
30
35
Acetylene
Pressure Range
P.S.I.G.
4 - 6
8 - 12
Do NOT use the
torch handle if
Tapered
Seating
Surfaces
Acetylene Pressure
P.S.I.G.
Min
5
3
5
3
5
3
5
3
7
3
10
4
12
5
Acetylene Pressure
P.S.I.G.
Min
3
3
Oxygen
Pressure Range
P.S.I.G.
8 - 11
10 - 18
Max
5
5
5
5
6
7
8
Max
5
5
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