Training Bulletin 17 Portable Cutting Torch Flashcards
According to training bulletin 17- portable cutting torches, under normal operation how long can a torch cut for and how thick of metal is it effective on?
15min
2 inches
According to training bulletin 17-portable cutting torches, tell me the operating set up for
0-1” thickness of metal
1-2” thickness of metal
What psi is the acetylene
Working time
O2 psi
O2- 35psi and 65psi
Acetylene- 7psi for both
15min for 0-1”
9min for 1-2”
How many turns do you open the acetylene cylinder?
How much do you open the oxygen cylinder?
1 1/2, no more
O2- all the way
Heavy rescue and fire boats have cutting torches that cut medal up to how thick?
4”
On the cutting torch, the Red wheel controls flow of what?
Green wheel?
Red- Acetylene
Green- Oxygen
On the cutting torch, what do you do if a backfire or flashback occurs?
Close the preheat and acetylene
On the cutting torch, oxygen connections turn what direction?
Acetylene?
Oxygen- Right
Acetylene- Left
When cleaning the pre heat holes on the cutting torch, what number tip cleaner should be used?
What number for the cutting holes?
Pre heat- #8
Cutting holes- #22
What shall always be left on the valve of the cutting torch when the torch is in use?
The box wrench
What are the 3 causes of backfire when using the cutting torch?
1) incorrect operating pressure
2) touching metal with nozzle
3) loose nozzle or dirt in nozzle
What shall not be used with the cutting torch due to it’s violent ignition and burning?
Oil
