Tweco Victor Torch Handles,Cutting Attachments Manual do Utilizador descarregar pdf (Página 20)

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delivery gauge rises, there is a leak in the regulator seat. Take the

regulator to a qualiﬁed repair technician for repair.

7. After leak testing the system, open the cylinder valves and

proceed.

WARNING

If a leak has been detected anywhere in the system, discontinue

use and have the system repaired. DO NOT use leaking equipment.

Do not attempt to repair a leaking system while the system is under

pressure. Perform all operations in a well-ventilated area to help

prevent the concentration of ﬂammable or toxic fumes.

SECTION 6:

WELDING NOZZLES

1. Inspect the cone end, coupling nut, O-rings, and welding nozzle

for damage, oil or grease. Do not use if damage or contaminants

are present.

WARNING

There must always be two O-rings on the cone end. The absence or

damage of either of these O-rings allows premixing of the oxygen

and fuel gases. This can lead to a sustained backﬁre within the

torch handle.

2. Connect the welding nozzle to the torch handle. Tighten the coupling

nut HAND TIGHT only. Using a wrench could damage the O-rings

and create a faulty seal.

MULTI-FLAME HEATING NOZZLES (ROSEBUDS)

Multi-ﬂame heating nozzles are set up exactly as the welding nozzle.

Follow the safety and operation procedures described above for the

welding nozzle.

CAUTION

Never starve or choke a welding nozzle or multi-ﬂame heating

nozzle. This causes overheating of the nozzle and a backﬁre or

sustained backﬁre may result. Should a sustained backﬁre occur

(ﬂame pops and disappears and/or a hissing sound is heard, the

ﬂame is burning inside the nozzle), immediately turn off the oxygen

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Tweco Victor Torch Handles,Cutting Attachments Manual do Utilizador Página 20