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RGC A/O > TB 67 - Holmatro Rescue Tool > Flashcards

TB 67 - Holmatro Rescue Tool Flashcards

1
Q

The what is a hydraulically powered device used primarily for vehicle extrication and heavy rescue applications?

A

Holmatro rescue tool

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2
Q

Both power units are powered by what cycle, air cooled Honda engines?

A

4 cycle

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3
Q

The power units use what type of displacement pump to draw and pressurize hydraulic fluid from the reservoir and direct fluid through the hose and through tool?

A

Positive displacement

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4
Q

Both power units utilize a 2 stage pump design capable of producing how much psi?

A

10,500 psi

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5
Q

Initial extrication operations will only require use of the first stage pump which is near how much psi?

A

3,000 psi

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6
Q

When an operation requires stronger tool forces, the what will “kick in” which can increase the hydraulic pressure to 10,500 psi?

A

Second stage

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7
Q

The “change over” from the first stage to the second stage can be recognized by a momentary what of movement of the tool followed by a continued movement?

A

“Stalling”

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8
Q

Members using the tools need to keep the trigger handle in what position during “change over” to utilize the second stage pump?

A

Desired position

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9
Q

The fluid used in both power units is a what hydraulic fluid that is pale or yellow in color and is non-corrosive?

A

22-weight mineral based hydraulic fluid

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10
Q

The hydraulic flood is the what of the system?

A

“Life blood”

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11
Q

How much does the PPU 15 (single power unit) weight?

A

35 pounds

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12
Q

How much usable hydraulic fluid (cc)does the PPU 15 have?

A

2000 cc

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13
Q

What is the rpm set at for the PPU 15?

A

4500 rpm

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14
Q

How much horsepower does the PPU 15 have?

A

2.5 horsepower

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15
Q

Is the PPU 15 a single tool operation or multi tool?

A

Single tool

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16
Q

How much does the DPU 30 (dual power unit) weight?

A

58 pounds

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17
Q

How much horsepower does the DPU 30 have?

A

3 horsepower

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18
Q

What is the rpm setting for the DPU 30?

A

3600 rpm

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19
Q

How much usable hydraulic fluid (cc) does the DPU 30 have?

A

3000 cc

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20
Q

What model spreaders are currently used on the truck companies?

A

3260 UL

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21
Q

The spreader is operated by use of what kind of handle?

A

Trigger handle

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22
Q

The trigger handle on the spreader is of what design which when rotated clockwise, causes it to open?

A

“Dead man”

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23
Q

A rotation of the trigger handle counter clockwise on the spreader will cause the tool to what?

A

Close

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24
Q

A built in what will keep the tool in its current position when the trigger handle is released while under load in other direction?

A

Check valve

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25
Q

The 2 shackles provided for the spreaders are equipped with what used to connect the C-8 rated chains?

A

“Grab hooks”

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26
Q

What 2 tips are included with the spreader for panel cutting?

A

Cutter tips

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27
Q

When using the cutter tip to cut panels, how many cutter tips are placed on the spreader?

A

1 cutter tip, 1 spreader tip remains

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28
Q

Used for the cutter tips include what applications?

A

Panel vans
Aircraft skins
Semi trailers
Large panels of sheet metal

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29
Q

Because of the powerful force employed while cutting with the holmatro cutters, extreme care should be used to ensure that the tips of the cutters do not cross on what?

A

The opposite side of the blades

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30
Q

Care should also be used on the cutters to ensure that material being cut does not cause the cutter to what?

A

Twist and allow blades to separate while cutting

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31
Q

What 3 models of cutters are there?

A 
3020 UL
3035 NCT (new car technology)
4050 NCT (new car technology)
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32
Q

What is the cutting force for the 3020 UL cutters?

A

63,400 pounds

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33
Q

How far can the 3020 UL cutters open?

A

5 1/4”

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34
Q

How much do the 3020 UL weigh?

A

27 1/2 pounds

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35
Q

What is the cutting force of the 3035 NCT cutters?

A

57,320 pounds

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36
Q

How far do the 3035 NCT cutters open?

A

5 5/8”

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37
Q

How much do the 3035 NCT weigh?

A

33 1/2 pounds

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38
Q

What is the cutting force for the 4050 NCT cutters?

A

208,000 pounds

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39
Q

How far do the 4050 NCT cutters open?

A

7 1/8”

40
Q

How much do the 4050 NCT cutters weigh?

A

37 1/2 pounds

41
Q

For the telescopic rams, rotating the trigger handle in which direction will cause them to extend or retract?

A

Extend: clockwise
Retract: counterclockwise

42
Q

Both rams are of the what design whereas there is a plunger within a plunger that extends from the main body?

A

2 stage design

43
Q

The ram extends from where to the handle?

A

Nearest part of the handle

44
Q

What 2 model telescopic rams are carried on truck companies?

A

3340 (small ram)

3350 (big ram)

45
Q

What size is the 3340 ram and how long is it fully extended?

A

12” normal

23” fully extended

46
Q

How much pounds of force for the 1st and 2nd stages for the 3340 and 3350 ram?

A

1st stage: 49,210

2nd stage: 18,210

47
Q

How much does the 3340 ram weigh?

A

24 pounds

48
Q

What is the size of the 3350 ram and how long is it fully extended?

A

Normal: 21”

Fully extended: 50 1/4”

49
Q

How much does the 3350 ram weigh?

A

37 pounds

50
Q

Each truck company carries a what that can be used in conjunction with the telescopic rams?

A

HRS22 ram support

51
Q

What are 2 purposes for the HRS 22 ram support?

A

To provide purchase point near object to be pushed (dash roll)

Spread the force load against an object, giving the ram a wider and more stable purchase point

52
Q

The HRS22 ram support is designed to use which braces?

A

Round braces, hex braces are equally as strong

53
Q

The hoses supplied with the holmatro tool are orange and blue and are how long?

A

32 feet

54
Q

The hoses have a high pressure and low pressure hose within the hose itself, which one is the supply and which one is the return?

A

The inner (high pressure) is the supply and the outer (low pressure) is the return

55
Q

Both the inner and outer hoses for the holmatro hose itself are constructed of what?

A

Polyurethaning and reinforced with Kevlar-like aramid fibers which make them resistant to kinking

56
Q

What is the working pressure of the hose?

A

10,500 psi

57
Q

What is the burst pressure rating for the hose (4 times)?

A

42,000 psi

58
Q

All holmatro hydraulic hoses and rescue tools come standard with what kind of couplers?

A

Flat faced, no-drip, auto locking quick couplers

59
Q

The couplers have a built in automatic return valve that eliminates the need for a dump valve on the pump and allows the what of tools?

A

“Hot swapping”

60
Q

Each power unit has a pressure relief device, it is used by placing what end of the hose coupler in the open end of the device?

A

Male end of the hose coupler

61
Q

To avoid the inadvertent build up of pressure, for the spreader close until tips touch and open it how wide?

A

1/4”

62
Q

To avoid the inadvertent build up of pressure, for the cutters open or close blades until what?

A

Tips cross

63
Q

If the cutters will not fit in the compartment open the cutters completely then do what?

A

Close slightly

64
Q

To avoid the inadvertent build up of pressure, for the rams fully retract piston, then open the ram how much?

A

1/4”

65
Q

The secunet is carried on which apparatus?

A

Truck and heavy rescue

66
Q

The secunet should be done without placing what in front of a non deployed air bag?

A

Steering wheel

67
Q

The secunet can be used over and over, but must be taken out of service and replaced through shops if what?

A

Air bag deploys

68
Q

The manufacturer only guarantees how many time deployments of the secunet?

A

1 time

69
Q

What are the 6 daily checks for the power unit?

A 
Fuel and hydraulic level
On position
Choke proper position
Fuel valve on
Visual inspect for readiness
70
Q

What are the weekly 5 checks for the power units?

A 
Fluids checked (engine oil too)
Visually inspect fasteners
Start and run engine
Operate tool with hose connected
Note change in RPM
71
Q

How long should you run the power unit during the weekly check?

A

At least 15 minutes

72
Q

When operating the tool during the weekly check, hold the trigger down for how long and note the change in RPM before releasing trigger?

A

Few seconds

73
Q

What are the 4 monthly checks for the power units?

A

Air filter
Hose couplings proper operation
Dust caps, tethers, pull cord frays
Condition of fuel

74
Q

What are the daily checks for the ram?

A

Readiness

Dust cap in place

75
Q

What are the 3 weekly checks for the rams?

A

Visual inspection
Components of ram performed
Operate trigger handle

76
Q

What are the 3 monthly checks for the rams?

A

Extend rams fully
Inspect for gouges/sharp points that could damage seals
Inspect small chrome tube

77
Q

What are the daily 3 checks of the hoses?

A

Visual inspection
Dust caps in place
Check for leaks

78
Q

What are the 2 weekly checks for the hoses?

A

Coupler for proper operation

Noticeable “click” upon connect

79
Q

If couplers on hose do not make connection, apply what to the area behind the coupler and also the face?

A

WD40 or an equally suitable lubricant

80
Q

If after several attempts to make a complete coupling and coupler will not fully close, it may need to be what?

A

Replaced

81
Q

What are the most abused component of the holmatro rescue tool system?

A

The hoses

82
Q

During the tool operation check, hold the trigger handle to the full open and close position for about how many seconds and check for leaks along the hose and the couplers?

A

5-10 seconds

83
Q

What should you clean the hoses with?

A

Mild soap and warm water solution

84
Q

If hoses become contaminated with grease, tar, battery acid or any other harmful product, use a cloth with what to remove product before cleaning with soap and water?

A

WD40

85
Q

When storing the hoses, they should not be shoved into the handle of the spreader or cutter but stored how?

A

In a coiled roll

86
Q

On a monthly basis, the ramp support, cutting tips, chain shackles and chains shall be inspected for what 3 things?

A

Cracks
Wears
Damage

87
Q

What are the monthly checks for the secunet?

A

Contamination or tears

88
Q

Current LAFD policy is to replace fuel every 30 days with fresh fuel, also fuel stabilizer such as what should be used to keep gas fresh?

A

Sta-bil(r) or seafoam(r)

89
Q

If the gasoline is what color in the power units you should replace with fresh fuel?

A

Yellow

90
Q

All power units are equipped with strainers sufficient enough to strain the gasoline for refilling, if no strainer in tank use what to strain gasoline when refilling?

A

Paint strainer

91
Q

Running the power units in what position for extended periods of time can cause damage to the engine components?

A

Half choke position

92
Q

What are the proper PPEs that should always be used when operating the holmatro tools?

A

Helmet
Goggle
Gloves
Protective clothing

93
Q

When operating the holmatro tools in a flammable or combustible environment, what should be in place and ready to protect personnel in the work area?

A

Loaded 1 1/2” line and dry chem

94
Q

The hinge bolt nut on the cutters needs to be checked for tightness, if loose tighten the bolt to how many foot pounds of torque?

A

75 foot pounds

95
Q

If the cutters have what they should be dressed with a file so that blades pass each other without any deflection?

A

“Mushrooming”

RGC A/O (45 decks)

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