*TB 33- Air Chisel

Question 1

The air chisel will cut through mild steel plate up to a ___ inch thick

Answer 1

1/4”

Question 2

The air chisel will cut through mild steel bolts up to an ___ inch in diameter

Answer 2

3/4”

Question 3

Will cutting operations with the air chisel produce sparks?

Answer 3

No

Question 4

How long are the two sections of air hose?

Answer 4

25ft sections

Question 5

The different air chisel regulators are preset to what psi?

Answer 5

140

Question 6

Once the system is setup, how much psi will be supplied at the chisel through the two 25-foot sections of air hose?

Answer 6

100psi

Question 7

Can you adjust the regulators of the air chisel?

Answer 7

No

Question 8

When can the air chisel system be connected to the air compressor system of an apparatus?

Answer 8

Never

Question 9

After each use, how many drops of Air Motor Lubrication Oil #288 should be used to lubricate the gun?

Answer 9

2

Question 10

After adding lubrication oil to the air chisel gun, how long should you operate the gun to ensure proper lubrication?

Answer 10

1-2 seconds

Question 11

What safety precaution must be done anytime you are changing bits?

Answer 11

Disconnect the air supply

Question 12

What other sources of compressed air can be used to supply the air chisel?

Answer 12

None, only LAFD SCBA bottles

Question 13

Can the chisels be used to break or cut glass?

Answer 13

No

Question 14

Air chisel:

The Meco regulator is designed to have a maximum intake pressure of ____ psi.

Answer 14

6000

Question 15

Air chisel:

The Norgren regulator is designed to have a maximum intake pressure of ___ psi

Answer 15

3000

Question 16

Pressure in excess of ___ psi to the air chisel will not improve the performance of the tool. It will however, reduce the working time of the air cylinder and possibly damage what?

Answer 16

100 psi

The “o” ring

Question 17

The air chisel under continuous use will last how long with a 60min SCBA bottle?

Answer 17

4 minutes