TB 044 - Rotary Saw

Question 1

The LAFD carries 4 types of ___” rotary saw blades

Answer 1

14

Question 2

Each rotary saw should be accompanied by a blade board that has an assortment of blades that best fits the needs of the district. All companies shall have at least __ of each blade type available

Answer 2

1

Question 3

METAL CUTTING ABRASIVE BLADES - The cutting material on abrasive blades consists of grit bonded by an _________ ________.

Answer 3

Organic Binder

Question 4

METAL CUTTING ABRASIVE BLADES - Blades shall be a minimum of ___” to remain in front line service

Answer 4

12

Question 5

METAL CUTTING ABRASIVE BLADES - Blades smaller than ___” may be used for training purposes

Answer 5

12

Question 6

METAL CUTTING ABRASIVE BLADES - Blades below __” shall be sent into the shops for replacement

Answer 6

9

Question 7

Abrasive blades shall be removed from service if there are signs of __________ product contamination or _______ which could render the blade unsafe

Answer 7

Petroleum
Cracks

Question 8

METAL CUTTING ABRASIVE BLADES - Blades that are no longer safe for use shall be marked with a F-175 Tag and the word “________” shall be marked on the blade before forwarding to Supply and Maintenance for replacement

Answer 8

UNSAFE

Question 9

COMBINATION “COMBI” BLADE - All Combi-blades are ___-__________.

Answer 9

BI-DIRECTIONAL

Question 10

The Combi-blade is not designed to cut _____ metals such as brass or aluminum, however it can cut thin, soft metal found on train siding, aircraft siding, metal clad doors, or aluminum gates.

Answer 10

Soft

Question 11

COMBINATION “COMBI” BLADE - Any glazing or buildup of material on the diamond segment can be cleaned by cutting into a soft material such as ______, ________ block or ________.

Answer 11

Brick
Cinder
Asphalt

Question 12

The Combi-blade had a continuous cutting depth of ____”

Answer 12

4¾

Question 13

Combi-blades shall be forwarded to Supply and Maintenance for replacement when:
● Any one segment is __________, ________ or missing.
● ______ spots along any of the segments occur.
● Matrix bond is equal to the thickness of the blade body; a step or lip no longer exists.

Answer 13

Fractured, Broken
Bald

Question 14

Concrete diamond blades are designed as a ____________ cutting rotation

Answer 14

Directional

Question 15

CARBIDE TIP BLADE - If a missing _____ or a visible _______ appears, fill out a F-175 tag and send the blade to Supply and Maintenance for replacement

Answer 15

Tip
Radius

Question 16

On the K-970, press the air purge diaphragm __ times

Answer 16

6

Question 17

FLOODING PROCEDURE - 2. Pull starting cord and cycle the saw quickly about __-__ times. As the air to fuel mixture in the combustion chamber lowers it will start

Answer 17

4 to 5

Question 18

To set the depth of your cuts, you should use the blade guard as a _______ _______ and the lower portion of the carrying handle as a pivot and skid

Answer 18

Depth Guard

Question 19

The key to proper cutting positions is keeping the weight of the saw close to the body of the __________

Answer 19

Operator

Question 20

OPTIONS FOR CARRYING ALOFT - ___’ utility strap

Answer 20

12

Question 21

Rotary Saw:
Gallon (Gas) - 1 to Ounces (2 cycle Oil) ___

Answer 21

2.6

Question 22

Gallon (Gas) - 2 1/2 to Ounces (2 cycle Oil) ___

Answer 22

6.5

Question 23

Gallon (Gas) - 5 to Ounces (2 cycle Oil) ___

Answer 23

13

Question 24

WEEKLY CHECKS 973W -While the saw is running, the member will depress the throttle fully for __-__ seconds to bring up the RPM’s and allow the saw to return to idle before repeating the process __-__ times

Answer 24

1 to 2
2 to 3

Question 25

WEEKLY CHECKS 973W - The rotary saw should not be allowed to run at full RPM without a load for more than a ___ seconds or engine damage may occur

Answer 25

Few

Question 26

MONTHLY CHECKS 973M - ____________ air or __________ should not be used to clean a paper filter

Answer 26

Compressed Solvents

Question 27

MONTHLY CHECKS 973M - If the spark plug is dirty, clean it with a wire brush and at the same time check that the electrode gap is .____” (0.5 mm).

Answer 27

.020”

Question 28

CLEANING - Water with mild ___________ may be used to clean the exterior of the saw. The saw should never be submerged in water

Answer 28

Detergent

Question 29

CLEANING - When cleaning the engine parts, particular attention should be paid to cylinder and head fins if soiled with such material as molten tar, clean with _________

Answer 29

Degreaser

Question 30

Blade coasting The cutting blade continues to rotate up to __ minute after the engine has stopped

Answer 30

1

Question 31

Sparks - can be thrown up to ___ feet

Answer 31

30

Question 32

Fuel cap - Do not use a tool to tighten the fuel cap, ______ tighten only.

Answer 32

Hand

Question 33

FLOODING PROCEDURE - Ensure the Choke is pushed in and the half throttle is engaged. This allows the maximum amount of air to flow through the carburetor, combustion chamber and out the exhaust

Answer 33

.