TB 33 - Air Chisel

Question 1

The pneumatic power chisel is used for and designed to be operated with the compressed air supply of a standard LAFD breathing air bottle?

Answer 1

Forcible entry took

Physical rescue tool

Question 2

When the air chisel is used in continuous operation is has an approximate working time of how many minutes for a 30 and 60 minute bottle?

Answer 2

2 minutes for 30 minute bottle

4 minutes for 60 minute bottle

Question 3

The air chisel will cut through what inch mild steel plate and what inch mild steel bolts?

Answer 3

1/4” thick mild steel plate

3/4” mild steel bolts in diameter

Question 4

The air chisel will cut what thicknesses of sheet metal all quickly without producing sparks?

Answer 4

Various thickness

Question 5

There are 3 models currently assigned to the fuel that operate basically in the same manner, what are they?

Answer 5

Jiffy
Chicago
Black and decker

Question 6

In each air chisel kit there are 2 sections of air hoses of what length?

Answer 6

25 feet

Question 7

What 2 types of regulators are in operation?

Answer 7

Meco P-IDA

Norgren 11-010

Question 8

What is the maximum intake pressure of the Meco regulator?

Answer 8

6000 psi

Question 9

What is the maximum intake pressure of the Norgren regulator?

Answer 9

3000 psi

Question 10

What is the outlet pressure for both the Meco and Norgren regulators?

Answer 10

150 psi

Question 11

What are both the Meco and Norgren regulators preset outlet pressure set to?

Answer 11

140 psi

Question 12

The preset 140 outlet pressure for both regulators will supply the air chisel at what psi through 2 sections of 25 foot air hose?

Answer 12

100 psi

Question 13

Should you adjust the regulators other than the preset?

Answer 13

No

Question 14

All three air chisels (jiffy, Chicago, black and decker) are designed to operate a maximum of what psi?

Answer 14

100 psi

Question 15

Pressure in excess of 100 psi will not improve the performance of the tool, it reduces the working time of air cylinder and possibly damage what in the gun?

Answer 15

“O” rings

Question 16

What 4 tips are included for the air chisel?

Answer 16

Cutter
Chisel
Extension chisel
Punch

Question 17

What is the cutter used for?

Answer 17

Remove quarter panels, rocker panels, inner door panels, areas surrounding locks and hinges

Question 18

What is the chisel used for?

Answer 18

Break spot welds, split nuts, shear hinges and locks, remove car roofs

Question 19

What is the extension chisel used for?

Answer 19

Hard to reach places such as door hinges with a deep inset

Question 20

What is the punch used for?

Answer 20

Punch out wedges or swelled rivets and trunk lid locks, punch holes to locate inner locks

Question 21

You should only start using tool after bit has done what?

Answer 21

Made contact with work surface

Question 22

Under no circumstances should this tool be connected to the what of an apparatus?

Answer 22

Air compressor system

Question 23

After each use you should do what?

Answer 23

Check for worn/damaged parts
Check alien screws on quick change retained
Lubricate and operate gun

Question 24

For lubrication, what type of oil should be used and after reconnecting fun operate unit for how long to lubricate piston and valve?

Answer 24

2 drops of air motor lubrication oil #288

Operate for 1-2 seconds

Question 25

Where can additional oil for the air chisel be obtained from?

Answer 25

S and M

Question 26

What should always be worn when operating the air chisel?

Answer 26

Gloves and goggles

Question 27

When changing bits, you should always do what with the gun?

Answer 27

Disconnect from air supply

Question 28

Where should the safety member be stationed to shut down in the event of an emergency?

Answer 28

At the air bottle out of the working area

Question 29

You should never use the chisels to break or cut what?

Answer 29

Glass