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training bulletins > TB #44 ROTARY SAW > Flashcards

TB #44 ROTARY SAW Flashcards

1
Q

WHAT ARE THE 3 MAKE AND MODEL CARRIED BY LAFD?

A

PARTER K-950
HUSQVARNA K-960
HUSQVARNA K-970

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2
Q

WHAT SIZE ROTARY SAW BLADES DOES THE LAFD CARRY?

A

14”

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3
Q

WHAT ARE THE 4 TYPES OF ROTARY SAW BLADES THAT THE LAFD CARRIES?

A
  1. ABRASIVE BLADE
  2. COMBI-BLADE
  3. DIAMOND BLADE
  4. CARBIDE TOOTH BLADE
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4
Q

ALL COMPANIES SHALL HAVE AT LEAST ___ OF EACH ROTARY SAW BLADE TYPE AVAILABLE.

A

ONE

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5
Q

BEFORE MOUNTING ANY ABRASIVE BLADE ON A ROTARY SAW, THE BLADE SHALL BE INSPECTED. BLADES SHALL BE A MINIMUM OF __” TO REMAIN IN FRONT LINE SERVICE.

A

12”

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6
Q

BEFORE MOUNTING ANY ABRASIVE BLADE ON A ROTARY SAW, THE BLADE SHALL BE INSPECTED. BLADES SMALLER THAN __” MAY BE USED FOR TRAINING PURPOSES.

A

12”

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7
Q

BEFORE MOUNTING ANY ABRASIVE BLADE ON A ROTARY SAW, THE BLADE SHALL BE INSPECTED. BLADES BELOW __” SHALL BE SENT INTO THE SHOPS FOR REPLACEMENT.

A

9”

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8
Q

BLADES THAT ARE NO LONGER SAFE SHALL BE MARKED WITH A ______ TAG AND THE WORD “______”

A

F-175 TAG AND THE WORD “UNSAFE”

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9
Q

INFORMATION ONLY

THE COMBI-BLADE IS A DIAMOND BLADE THAT CONSISTS OF A STEEL FLAT METAL DISC WITH SYNTHETIC DIAMONDS BONDED TO THE OUTER EDGE. DIAMOND BLADES DO NOT HAVE TEETH TO CUT, RATHER THEY HAVE EXPOSED DIAMOND CRYSTALS USED TO GRIND THE MATERIAL.

A
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10
Q

COMBI-BLADES ARE DESIGNED TO CUT…

A

BARE METAL, CONCRETE, REINFORCED CONCRETE, MASONRY OR ROBERTSON DECKING

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11
Q

ARE COMBI-BLADES DIRECTIONAL OR BI-DIRECTIONAL?

A

BI-DIRECTIONAL

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12
Q

ANY GLAZING OR BUILD UP OF MATERIAL ON THE DIAMOND SEGMENT OF COMBI-BLADE CAN BE CLEANED UP BY CUTTING INTO A SOFT MATERIAL SUCH AS…

A

BRICK, CINDER BLOCK OR ASPHALT

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13
Q

THE COMBI-BLADE HAS A CONTINUOUS CUTTING DEPTH OF _______”

A

4 3/4”

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14
Q

COMBI-BLADES SHALL BE FORWARDED TO SUPPLY AND MAINTENANCE FOR REPLACEMENT WHEN…

A
  1. ANY ONE SEGMENT IS FRACTURED, BROKEN OR MISSING
  2. BALD SPOTS ALONG ANY OF THE SEGMENTS OCCUR
  3. MATRIX BOND IS EQUAL TO THE THICKNESS OF THE BLADE BODY
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15
Q

ARE CONCRETE DIAMOND BLADES DIRECTIONAL OR BI-DIRECTIONAL?

A

DIRECTIONAL

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16
Q

CONCRETE DIAMOND BLADES ARE DESIGNED TO CUT…

A

CONCRETE & METAL ENCASED IN CONCRETE

17
Q

DIAMOND BLADES SHALL BE FORWARDED TO SUPPLY AND MAINTENANCE FOR REPLACEMENT WHEN…

A
  1. ANY ONE SEGMENT IS FRACTURED, BROKEN OR MISSING
  2. BALD SPOTS ALONG ANY OF THE SEGMENTS OCCUR
  3. MATRIX BOND IS EQUAL TO THE THICKNESS OF THE BLADE BODY
18
Q

CARBIDE TIP BLADES ARE DESIGNED TO CUT…

A

COMPOSITION ROOFING MATERIAL, WOOD & LEXAN

19
Q

AT A MINIMUM, THE FOLLOWING SAFETY EQUIPMENT SHOULD BE USED WHILE OPERATING THE ROTARY SAW:

A
  1. GLOVES
  2. EYE PROTECTION
  3. HELMET
  4. BRUSH JACKET/ TURNOUT COAT
20
Q

WHEN STARTING THE HUSQVARNA K-970, PRESS THE AIR PURGE DIAPHRAGM __ TIMES.

A

6
(WHEN YOU PUSH THE AIR PURGE DIAPHRAGM, FUEL IS PUMPED THROUGH THE CARBURETOR. FEWER PULLS WILL BE REQUIRED FOR STARTING)

21
Q

ACCORDING TO TB #44, THE FOLLOWING IS A WAY TO CLEAR THE COMBUSTION CHAMBER WHEN FLOODING HAS OCCURRED…

A
  1. 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
  2. PULL STARING CORD AND CYCLE THE SAW QUICKLY ABOUT 4-5 TIMES. AS THE AIR TO FUEL MIXTURE IN THE COMBUSTION CHAMBER LOWERS IT WILL START
22
Q

ACCORDING TO TB #44, WHAT ARE THE DAILY CHECKS OF THE ROTARY SAW?

A
  1. FUEL
  2. STARTING POSITION
  3. BLADE GUARD
  4. BELT TENSION
  5. VISUAL INSPECTION
  6. BLADES & BLADE BOARD
  7. CARRYING STRAP
23
Q

ACCORDING TO TB #44, WHAT ARE THE WEEKLY CHECKS OF THE ROTARY SAW?

A
  1. PERFORM DAILY CHECK
  2. START & RUN UNTIL WARM
  3. RUN TO HIGH RPM
  4. ABNORMAL SOUNDS
  5. ABNORMAL VIBRATIONS
  6. INSPECT STARTER CORD
24
Q

ACCORDING TO TB #44, WHAT ARE THE MONTHLY CHECKS OF THE ROTARY SAW?

A
  1. CUTTING HEAD ASSEMBLY
  2. DRIVE BELT
  3. CLUTCH ASSEMBLY
  4. AIR FILTER
  5. SPARK PLUG
  6. MUFFLER
  7. REPLACE FUEL IF NEEDED
25
Q

THE ROTARY SAW USES A __:__ TWO-STROKE FUEL MIXTURE

A

50:1

26
Q

WHEN MIXING TWO-STROKE FUEL, DO NOT MAKE MORE THAN ___ MONTH’S SUPPLY AT A TIME.

A

ONE

27
Q

CURRENT LAFD POLICY IS TO REPLACE FUEL IN SMALL ENGINES EVERY ___ DAYS WITH FRESH FUEL

A

30

28
Q

WHEN USING THE 50:1 TWO-STROKE FUEL MIXTURE, EVERY ONE GALLON OF GAS WILL HAVE ____ OUNCES OF OIL.

A

2.6 OUNCES

29
Q

WEEKLY CHECKS OF THE ROTARY SAW WILL NORMALLY BE PERFORMED ON MONDAYS AND DOCUMENTED ON THE _____.

A

F-973W

30
Q

WHEN PERFORMING A WEEKLY CHECK OF THE ROTARY SAW, 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.

A

1-2 SECONDS, 2-3 TIMES

31
Q

MONTHLY CHECKS OF THE ROTARY SAW WILL NORMALLY BE PERFORMED ON THE FIRST DAY OF THE MONTH AND DOCUMENTED ON THE _____.

A

F-973M

32
Q

WHEN CONDUCTING A CHECK OF THE SPARK PLUG GAP ON THE ROTARY SAW DURING MONTHLYS, MEMBER MUST CHECK THAT THE ELECTRODE GAP IS ___” (___MM)

A

.020” OR 0.5MM

33
Q

ANNUALLY, THE ROTARY SAW SHALL BE TAKEN TO THE SMALL ENGINE REPAIR SHOP TO BE INSPECTED BY SUPPLY AND MAINTENANCE PERSONNEL DURING….

A

ANNUAL PUMP TEST OR AERIAL LADDER TEST

34
Q

THE CUTTING BLADE OF THE ROTARY SAW CONTINUES TO TO ROTATE UP TO ________ AFTER THE ENGINE HAS STOPPED.

A

A MINUTE

35
Q

ACCORDING TO TB #44, SPARKS CAN BE THROWN UP TO __ FEET.

A

30 FEET

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