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4.3.
connecting tHe flasH aRRestoRs and Hoses to tHe gas RegulatoRs.
4.3.1.
connect the Blue, oxygen flash arrestor to the outlet on the oxygen regulator. (As shown above, on the left).
4.3.2.
then, connect the Blue hose to the Blue, oxygen flash arrestor. (As shown above, on the left).
4.3.3.
connect the Red, acetylene flash arrestor to the outlet on the acetylene regulator. (As shown above, on the right).
4.3.4.
then, connect the Red hose to the Red, acetylene flash arrestor.(As shown above, on the right).
4.3.5.
tighten all nuts securely with a wrench. if any sign of oil or grease is found on the flash arrestors or regulators discontinue use
immediately.
note: new hoses contain a preservative powder which must be blown out before use.
4.3.6.
Prior to attaching the torch, blow out both hoses to eliminate any particles or debris. Perform this on one hose at a time and in a well
ventilated area, otherwise you may create conditions for fire or explosion.
a.
turn the oxygen or acetylene regulator adjusting screw clockwise to allow 5psi to pass through hose.
b.
Allow oxygen or acetylene to flow for approximately 10 seconds to purge each hose in turn.
4.4.
asseMBling tHe toRcH foR welding. Refer to fig.2
waRning! the teflon seal on the welding attachment inlet must not be damaged or missing, otherwise gases will mix inside the torch
‰
and result in flashbacks or backfires. Always inspect the seal, coupling nut and torch head for damage or oil. if either is found, discontinue
use and contact your supplier.
4.4.1.
screw the chosen welding nozzle into the welding attachment making sure that it is fully tightened down.
4.4.2.
screw the welding attachment with nozzle attached onto the torch handle as shown below. Before fully tightening the ribbed nut, check
that the orientation of the gas valve knobs suits your normal welding practice. Adjust if necessary and fully tighten the ribbed nut.
4.5.
asseMBling tHe toRcH foR cutting.
waRning! the teflon seal on the cutting attachment inlet must not be damaged or missing, otherwise gases will mix inside the torch
‰
and result in flashbacks or backfires. Always inspect the seal, coupling nut and torch head for damage or oil. if either is found, discontinue
use and contact your supplier.
4.5.1.
to change the cutting nozzle loosen and remove the nut which holds it in place and withdraw the nozzle. slide the chosen cutting nozzle
through the nut and screw the assembly into the cutting attachment and fully tighten down.
4.5.2.
screw the cutting attachment with nozzle attached onto the torch handle as shown below. Before fully tightening the ribbed nut, adjust the
orientation of the gas valve knobs so that they do not block the movement of the lever (B).
4.6.
connecting tHe non-RetuRn ValVes and Hoses to tHe toRcH.
4.6.1.
Always fit the non-return valves provided to the torch before connecting the respective hoses. the non-return valves provided have
different direction threads to ensure that they are fitted to the correct side of the torch. the oXYGen non-return valve has a normal
thread and will fit to the blue coded side of the torch (see colour coding on valve knobs). the AcetYlene non-return valve
has a reverse thread and will fit to the red coded side of the torch (see colour coding on valve knobs).
4.6.2.
connect the two hoses to the respective non-return valves fitted to the torch handle.
waRning! if traces of oil or grease are found, do not use. contact your gas supplier immediately.
‰
5. welding oPeRation
iMPoRtant! leaK test all connections and ValVes PRioR to eacH use of tHe eQuiPMent.
‰
note: these instructions are intended to describe the facilities and operation of the welding/cutting torch. they are not
intended to teach you how to weld or cut using oxyacetylene. if you have no experience of welding/cutting using
oxyacetylene it is essential that you seek training from a qualified person or approved training organisation.
5.1.
Assemble the torch for welding as described in section 4.4 (see also fig.2)
5.2.
setting tHe gas RegulatoR PRessuRes close the regulators by turning the adjusting screws anti-clockwise to relieve the
pressure on the diaphragm before opening the cylinder valves. slowly open the cylinder valve on the oxygen and acetylene bottles in
turn. As you do so the high pressure gauge (left hand) on each regulator will register the pressure in the cylinder to which it is attached.
5.2.1.
slowly open each regulator in turn by turning the adjusting knob clockwise. As you do so the outlet pressure gauge (right hand) on each
regulator will register the outlet pressure of gas being fed to the torch. Adjust the pressure according to the size of nozzle in use and the
thickness of the material to be cut or welded. refer to section 8 in the chart overleaf.
© Jack sealey limited
fig.2
Original Language Version
fig.3
sGA1.V4 | issue 1 29/04/16
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