TB 67 - Holmatro Rescue Tool

Question 1

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

Answer 1

Holmatro rescue tool

Question 2

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

Answer 2

4 cycle

Question 3

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?

Answer 3

Positive displacement

Question 4

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

Answer 4

10,500 psi

Question 5

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

Answer 5

3,000 psi

Question 6

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

Answer 6

Second stage

Question 7

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?

Answer 7

“Stalling”

Question 8

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

Answer 8

Desired position

Question 9

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

Answer 9

22-weight mineral based hydraulic fluid

Question 10

The hydraulic flood is the what of the system?

Answer 10

“Life blood”

Question 11

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

Answer 11

35 pounds

Question 12

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

Answer 12

2000 cc

Question 13

What is the rpm set at for the PPU 15?

Answer 13

4500 rpm

Question 14

How much horsepower does the PPU 15 have?

Answer 14

2.5 horsepower

Question 15

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

Answer 15

Single tool

Question 16

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

Answer 16

58 pounds

Question 17

How much horsepower does the DPU 30 have?

Answer 17

3 horsepower

Question 18

What is the rpm setting for the DPU 30?

Answer 18

3600 rpm

Question 19

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

Answer 19

3000 cc

Question 20

What model spreaders are currently used on the truck companies?

Answer 20

3260 UL

Question 21

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

Answer 21

Trigger handle

Question 22

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

Answer 22

“Dead man”

Question 23

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

Answer 23

Close

Question 24

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

Answer 24

Check valve

Question 25

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

Answer 25

“Grab hooks”

Question 26

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

Answer 26

Cutter tips

Question 27

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

Answer 27

1 cutter tip, 1 spreader tip remains

Question 28

Used for the cutter tips include what applications?

Answer 28

Panel vans Aircraft skins Semi trailers Large panels of sheet metal

Question 29

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?

Answer 29

The opposite side of the blades

Question 30

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

Answer 30

Twist and allow blades to separate while cutting

Question 31

What 3 models of cutters are there?

Answer 31

``` 3020 UL 3035 NCT (new car technology) 4050 NCT (new car technology) ```

Question 32

What is the cutting force for the 3020 UL cutters?

Answer 32

63,400 pounds

Question 33

How far can the 3020 UL cutters open?

Answer 33

5 1/4”

Question 34

How much do the 3020 UL weigh?

Answer 34

27 1/2 pounds

Question 35

What is the cutting force of the 3035 NCT cutters?

Answer 35

57,320 pounds

Question 36

How far do the 3035 NCT cutters open?

Answer 36

5 5/8”

Question 37

How much do the 3035 NCT weigh?

Answer 37

33 1/2 pounds

Question 38

What is the cutting force for the 4050 NCT cutters?

Answer 38

208,000 pounds

Question 39

How far do the 4050 NCT cutters open?

Answer 39

7 1/8”

Question 40

How much do the 4050 NCT cutters weigh?

Answer 40

37 1/2 pounds

Question 41

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

Answer 41

Extend: clockwise Retract: counterclockwise

Question 42

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

Answer 42

2 stage design

Question 43

The ram extends from where to the handle?

Answer 43

Nearest part of the handle

Question 44

What 2 model telescopic rams are carried on truck companies?

Answer 44

3340 (small ram) | 3350 (big ram)

Question 45

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

Answer 45

12” normal | 23” fully extended

Question 46

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

Answer 46

1st stage: 49,210 | 2nd stage: 18,210

Question 47

How much does the 3340 ram weigh?

Answer 47

24 pounds

Question 48

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

Answer 48

Normal: 21” | Fully extended: 50 1/4”

Question 49

How much does the 3350 ram weigh?

Answer 49

37 pounds

Question 50

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

Answer 50

HRS22 ram support

Question 51

What are 2 purposes for the HRS 22 ram support?

Answer 51

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

Question 52

The HRS22 ram support is designed to use which braces?

Answer 52

Round braces, hex braces are equally as strong

Question 53

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

Answer 53

32 feet

Question 54

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?

Answer 54

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

Question 55

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

Answer 55

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

Question 56

What is the working pressure of the hose?

Answer 56

10,500 psi

Question 57

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

Answer 57

42,000 psi

Question 58

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

Answer 58

Flat faced, no-drip, auto locking quick couplers

Question 59

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?

Answer 59

“Hot swapping”

Question 60

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?

Answer 60

Male end of the hose coupler

Question 61

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

Answer 61

1/4”

Question 62

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

Answer 62

Tips cross

Question 63

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

Answer 63

Close slightly

Question 64

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

Answer 64

1/4”

Question 65

The secunet is carried on which apparatus?

Answer 65

Truck and heavy rescue

Question 66

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

Answer 66

Steering wheel

Question 67

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

Answer 67

Air bag deploys

Question 68

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

Answer 68

1 time

Question 69

What are the 6 daily checks for the power unit?

Answer 69

``` Fuel and hydraulic level On position Choke proper position Fuel valve on Visual inspect for readiness ```

Question 70

What are the weekly 5 checks for the power units?

Answer 70

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

Question 71

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

Answer 71

At least 15 minutes

Question 72

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

Answer 72

Few seconds

Question 73

What are the 4 monthly checks for the power units?

Answer 73

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

Question 74

What are the daily checks for the ram?

Answer 74

Readiness | Dust cap in place

Question 75

What are the 3 weekly checks for the rams?

Answer 75

Visual inspection Components of ram performed Operate trigger handle

Question 76

What are the 3 monthly checks for the rams?

Answer 76

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

Question 77

What are the daily 3 checks of the hoses?

Answer 77

Visual inspection Dust caps in place Check for leaks

Question 78

What are the 2 weekly checks for the hoses?

Answer 78

Coupler for proper operation | Noticeable “click” upon connect

Question 79

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

Answer 79

WD40 or an equally suitable lubricant

Question 80

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

Answer 80

Replaced

Question 81

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

Answer 81

The hoses

Question 82

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?

Answer 82

5-10 seconds

Question 83

What should you clean the hoses with?

Answer 83

Mild soap and warm water solution

Question 84

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?

Answer 84

WD40

Question 85

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

Answer 85

In a coiled roll

Question 86

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

Answer 86

Cracks Wears Damage

Question 87

What are the monthly checks for the secunet?

Answer 87

Contamination or tears

Question 88

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?

Answer 88

Sta-bil(r) or seafoam(r)

Question 89

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

Answer 89

Yellow

Question 90

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?

Answer 90

Paint strainer

Question 91

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

Answer 91

Half choke position

Question 92

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

Answer 92

Helmet Goggle Gloves Protective clothing

Question 93

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?

Answer 93

Loaded 1 1/2” line and dry chem

Question 94

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?

Answer 94

75 foot pounds

Question 95

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

Answer 95

“Mushrooming”