LT study Guide Hurst Spreaders

Question 1

1) Hurst edraulic spreaders have been specially designed to rescue or retrieve the bodies of victims of ____, ____, or ___ accidents or to be used during rescue operations from _____

Answer 1

a. Road, rail, aircraft, buildings

Question 2

2) The spreaders can also be used during rescue operations to free persons who have become trapped by pushing open ___ or removing obstacles with the aid of a ___

Answer 2

a. Doors, chain set

Question 3

3) The ______ placed on the rescue device may only be directly changed after consultation with HURST

Answer 3

a. Operating pressure

Question 4

4) The rescue equipment should not come in contact with ___ or ___

Answer 4

a. Acids or alkalines

Question 5

5) All devices guarantee the ____ switch and the ______ function when the star grip is released

Answer 5

a. Dead mans, full load-supporting

Question 6

6) Either a ___ or an _____ must be connected as an energy source

Answer 6

a. Battery, external power supply

Question 7

7) When exchanging the battery or power supply the connection slot will light up for approximately ___ seconds

Answer 7

30

Question 8

8) The piston movement is controlled by the ___ on the attached valve

Answer 8

a. Star grip

Question 9

9) If the rechargeable battery remains in the device with the main switch on, but without activating the star grip the rechargeable battery will switch itself off after _____

Answer 9

a. Some time ( 10-60 min depending on the type of battery)

Question 10

10) In order to resume work the device must be ____ and then ____ again, or the ____ can be activated on the rechargeable battery, or the battery may be briefly ____ and ____ again

Answer 10

a. Turned off, turned on, capacity display, unplugged, replugged

Question 11

11) Ensure that objects to be worked on are adequately ____ and/or ____ to ensure that there is no risk of sliding or shifting.

Answer 11

a. Underpinned, supported

Question 12

12) To increase grip and to avoid having the tips ___ or ____ out of the part to be processed the grips should be ___ at an early stage.

Answer 12

a. Slip, break, reapplied

Question 13

13) The _____ develops in the rear area of the plug on tip

Answer 13

a. Highest force

Question 14

14) _____ chain sets must be used for pulling

Answer 14

a. HURST

Question 15

15) The pulling chains must be checked by an ____ at least ____

Answer 15

a. Expert, once a year

Question 16

16) Squeezing is allowed –

Answer 16

a. In the area of the tips
b. With the special squeezing plates in the arms

Question 17

17) It is possible to peel sheet metal with the _____

Answer 17

a. Peeling tips

Question 18

18) Once work has been completed the device arms should be closed until the tips are only _____ apart, this relieves the ____ and ____ strain on the equipment

Answer 18

a. A few millimeters apart, hydraulic and mechanical

Question 19

19) Clean the rescue device after each operation and grease both the ____ and the ______ movable parts, the ____ of the spreader plug on tips should also be greased from _____

Answer 19

a. Metallic, mechanically, lock, time to time

Question 20

20) The devices are subject to very high _____

Answer 20

a. Mechanical stresses

Question 21

21) A visual inspection must be carried out – (2)

Answer 21

a. After each use
b. One carried out every six months

Question 22

22) Annual inspection of the tool is due____, must be performed by a person that possess adequate ____ knowledge and experience in the fields of _____ and _____

Answer 22

a. Once a year, specialist, electrical engineering, hydraulics

Question 23

23) Every ___ years or when there might be doubts regarding the ___ or ____ of the unit an additional _____ is to be carried out

Answer 23

a. 3, safety or reliability, function check

Question 24

24) After ____ service life an oil change is recommended

Answer 24

a. 10 years

Question 25

25) The air suction filter is to be checked at least ___ or after use in a ___ environment

Answer 25

a. Once a year, dusty

Question 26

26) If the filter is ____ it will need to be replaced

Answer 26

a. Severely contaminated

Question 27

27) Only ___ spare parts may be used to replace all components

Answer 27

a. HURST

Question 28

28) The outside of the device should be cleaned with a ___ from ____

Answer 28

a. Damp cloth, time to time

Question 29

29) The metal surfaces are to be coated with a _____ to counteract corrosion

Answer 29

a. Suitable medium

Question 30

30) eDRUALIC cutting devices are used to free injured persons at accident scenes by cutting through ____, _____, and ____.

Answer 30

a. Doors, roof beams, hinges

Question 31

31) Hurst eDRUALIC devices and batteries are not :

Answer 31

a. Suitable for underwater use
b. Waterproof
c. Water resistant
d. Liquid-proof or resistant

Question 32

32) The following may not be cut/squeezed- (5)

Answer 32

a. Live cables
b. Prestressed and hardened parts such as springs, spring steels, steering columns and rollers
c. Pipes under gas or liquid pressure
d. Compound materials (steel/concrete)
e. Explosive bodies such as airbag cartridges

Question 33

33) HURST eDRUALIC devices are NOT _____

Answer 33

a. Explosion protected

Question 34

34) If you are making use of an external power supply, the device can be used for an almost ____ time, only limited by the ____ and the _____ of the power supply

Answer 34

a. Unlimited, external energy source, overheating switch

Question 35

35) The ____ attached on the operating side light up the work area

Answer 35

a. Light emitting diodes

Question 36

36) Blades should be positioned at a ___ angle to the object to be cut if possible

Answer 36

a. 90 degree

Question 37

37) Higher cutting capacities can be achieved by cutting as close as possible to the blades ____

Answer 37

a. Pivot point

Question 38

38) During cutting the gap between the ____ ( in the transverse direction) must not be exceeded, otherwise the ___ is in danger of breaking

Answer 38

a. Blade tips, blade

Question 39

39) Where possible avoid cutting through _____ parts of the vehicle body.

Answer 39

a. High strength

Question 40

40) Every ___ years a ___ test of the blades are essential

Answer 40

a. 3, crack

Question 41

41) When cleaning units and equipment note that no cleaning agent may be used that has a pH value outside the range ___-___

Answer 41

a. 5-8