Davco SUPACUT Startup Manual

STARTUP:

1. Select the appropriate model cutting torch and cutting nozzle and connect the fuel and oxygen
hoses to the torch, fuel tank and Oxygen cylinder as per manual instructions.
2. Check BOTH Oxygen and Gasoline/petrol/Gasoline valves and controls are in the
CLOSED/OFF position.
3. Fill the explosion proof fuel tank with clean REGULAR grade gasoline/petrol, replace and close
the tank cap and vent valve
4. Now firstly turn on the Oxygen supply and adjust the Regulator pressure to between 10 and
40psi (varies depending on size of tip in use). This pressure may need to be increased when
using larger torches and tips to cut thicker material (Consult full manual).
5. Open the fuel tank cap ¼ to ½ a turn and LEAVE as slightly open position. This is to prevent a
vacuum forming in the fuel tank when the torch is in use.
while elevating the cutting torch
6. Now
outlet valve AND then open the torch fuel control valve.
7. While the tank AND torch valves are open ALSO open the preheating/Oxygen control valve of
the torch and let the oxygen flow (for 10-15 seconds) or until fuel mist begins to spray from the
torch tip.
8. Once fuel sprays from the torch tip promptly turn off torch fuel valve then the torch oxygen
valve. The oxygen line should now be purged of AIR and the fuel line should now be full of fuel
and "Ready For Use"
(If during initial setup and operation any air bubble is left in the fuel line the torch flame may self extinguish during
operation due to an interruption in fuel flow [by an air bubble]. Simply reignite torch and continue.
9. Check system for any fuel leaks.
10. The torch is now ready to be ignited.
11. To ignite the torch FIRST slowly turn on preheating/oxygen control valve. Yes OXYGEN FIRST
12. SECONDLY turn on Gasoline/petrol control valve and then ignite the oxy/gasoline/petrol mist
with an igniter. Note: If a spark igniter is used ignition can be a little difficult as liquid
gasoline/petrol wont burn ! Gasoline/petrol needs to vaporise to ignite so if your source of
ignition is too close to the nozzle and the gasoline/petrol is still liquid you cant light it... Try a
little further away. (A naked flame can be easier to achieve ignition than spark igniters – BBQ
flame gas lighter is quite good or pocket size mini butane torch or similar flame lighters)
13. Once lit.... for correct operation the cutting nozzle needs to be heated to a minimum of around
120-140F - 50-60℃ so the gasoline/petrol instantly vaporises on exiting the tip. To preheat the
tip, adjust the controls for a small flame (increase the fuel flow, reduce the preheating
oxygen) and maintain a small flame for 5-10 seconds. IF the tip is not hot enough OR the
gasoline/petrol flow is too great some fuel may actually drip from the tip (even while the torch is
SUPACUT
Oxy-Gasoline/Petrol Cutting System
STARTUP GUIDE
sales@davco.biz
( 3-6ft or 1.5-1.8m) open the tank fuel
+61 466 980 909