ignited) Remember LIQUID gasoline/petrol wont burn…only the vapour will. Reduce fuel flow to
allow adequate heating. (A tips full operating temperature is 750-930F - 400-500℃)
14.Once the tip has been preheated further open the oxygen valve to increase the flame cone size
to about 3-5mm (or larger on larger torches and tips) and if the flame appears reddish…. reduce
the Gasoline/petrol flow until the red flame disappears. Now the flame cone should be bright
state. If not ‘bright’, you should slightly open the Gasoline/petrol control valve base until the
flame cone brightness is at maximum brightness but before it turns reddish colour. The flame
should now be long and have stable combustion. (Greater details in manual)
15.To cut…first preheat the start point of the work piece to the steel melting temperature then
depress the torch cutting oxygen valve lever to ignite the steel and begin cutting.
SHUTDOWN:
•After finishing cutting or heating first close the torch gasoline/petrol valve until the flame is
completely extinguished and then close torch oxygen valve and valve on the oxygen cylinder.
•Once finished the system can be left “as is” or in a “Ready For Use”state. (repriming is then
not typically necessary to restart the torch). However IF the torch is not to be used again for
some time it is recommended the operator drain the gasoline/petrol in the fuel hose back to the
tank, turn off the fuel outlet valve, close the filling cap vent and oxygen cylinder valve, remove
the oxygen regulator and cutting torch. Clean all items before storing ready for future use..
SAFETY:
•Use the cutting/heating system with care due to a precision piece of equipment ensuring it is
kept clean and free of any damage. Protect the fuel tank from damage and ensure the
workplace is kept clear and free of potential operating hazards.
•Any high temperature cutting operation using an open flame should ALWAYS be used with
great care paying careful attention to safety issues related to a potentially hazardous working
environment.
•An open flame cutting/heating system MUST only be used in a well ventilated area and NEVER
in close proximity to oxygen cylinders, gasoline/petrol tanks or any flammable material.
(Preferably at least 10 meters away).
•Pay careful attention that the torch, gasoline/petrol hose and oxygen hose are kept clean, free
of grease or oil or grease in order to prevent oil-oxygen reaction, fire or explosion. Ensure hoses
are protected from contact by melting or burning steel, heavy or sharp objects etc .
•Never pull on the Gasoline/petrol hose and oxygen hose. Should there be any signs of cracking,
softening or hardening the hose should be immediately repaired or replaced.
•NEVER heat or damage the Gasoline/petrol tank in any way.
•The Gasoline/petrol supply must be clean regular Gasoline/petrol. (to prevent fuel line or nozzle
blockage).
•The torch cutting nozzle fitting surface should be protected from any damage to prevent a poor
seal possibly causing a leak so affecting safe operation.
•NEVER place a burning torch on the work piece or the ground.
•NEVER block the cutting nozzle with anything so as to avoid oxygen reverse flow into the
Gasoline/petrol supply system, resulting in air resistance or dangerous incidents.
