Ifsta Vehicle Extication

Front 1

4 basic types of hydraulic tools

Back 1

-spreaders
-shears
-combination speader/shears
-extension rams

Front 2

spreader tips can extend

Back 2

32 inches apart

Front 3

shears can extend

Back 3

opening spread of 7 inches

Front 4

extension rams

Back 4

closed length of 3 feet to extended length of around 5 ft

Front 5

porta power tools

Back 5

labor intensive, operate slowly, limited range of operation
-tranmitts pressure from manual hydraulic pump through a high pressure hose to a tool assembly

Front 6

unibody constrcution

Back 6

prone to collapse when roof is removed, need third step block under b post to prevent this

Front 7

air chisels

Back 7

operate between 90 and 250 psi
-good for cutting medium to heavy gauge sheet metal and for popping rivets and bolts, opening locks

Front 8

high pressure airbags

Back 8

high pressure-tough neopren rubber exterior with steel wire or kevlar aramid fiber
-lie completely flat about 1 inch thick
-rang from 6x6 to 36x36
-may inflate to a height of 20 inches
-

Front 9

low pressure airbags

Back 9

-most commonly used to lift or stabilize large vehicles or objects
-much greater lifting distance (up to 6 feet)

Front 10

cribbing with airbags

Back 10

when box cribbing is used to support an airbag the top layer should be solid, leaving openings can cause bag to shift or rupture

Front 11

block and tackle

Back 11

good because of mech advantage gained to pull
-block is wood or metal fram combining one or more pulleys
-tackle is assembly of ropes used to multiply pulling force

Front 12

srs
sis

Back 12

supplemental restraint systems
side impact protection
-either electonically or mechanically driven
-dploy at speed of 200 mph
-to prevent accidental firing turn switch to off position, disconnect battery cables, wait for reserve power supply to drain down (sufficient voltage can remain for up to 30 minutes)

Front 13

electrical systems and hybrids

Back 13

have high voltage cables they represent elctrocution hazard
-ranges from 144 to more than 300 volts dc (can have orange or blue cables)

Front 14

stabilizing for 2 diff movements

Back 14

vertical and horizontal
-horizontal=chock vehciles wheels, may be possible to use parking brake, or put manual in gear
-vertical=jacks, pnuematic lifting bags, and cribbing

Front 15

ratchet lever jack

Back 15

-high lift jack
-least stable of all of various jacks
-one ratchet holds carriage in position while second moves with lever to move carriage up or down

Front 16

bar screw jack

Back 16

heavy duty devices excellent for supporting collapsed structural members
-not used for lifting

Front 17

trench screw jack

Back 17

-ease of application, durability, and relatively low cost, trecnh screw jacks sometimes used to replace wooden cross braces in trench rescue
-swivel footplate on one end of 2 inch steel pipe and a second swivel footplate with with a threaded stem on other, has adjusting nut with handles to vary length of jack

Front 18

common tools used to cut laminated glass

Back 18

air chisel
-axe
-reciprocating (sawzaw)
-handsaw with coars blade
-hay hook
-windshield saw

Front 19

laminated vs tempered glass

Back 19

-laminated safety glass-2 sheets of glass bonded to a sheet of plastic sandwiched between them
-keeps shard of glass from flying about

tempered glass-side and rear windows, small lines of fracture are spread throughout entire plate and the glass separates into many small pieces (eliminates hazard of long pointed pieces of glass

Front 20

inverter

Back 20

step up transformer that converts 12 or 24 volt dc to 110 or 220 volt ac
-used when small amounts of power are needed or small electrically operated tools are to be operated

Front 21

generator

Back 21

-most common power source used for emregency services
-small gasloine, or diesle engines have 110 or 220 volt capacities
vehicle mounted can be run off power take off(system driveshaft)

Front 22

portbale v fixed lighting

Back 22

portable-carried to and used in areas where vehicle mounted lights are ineefective (range from 300 to 1000 watt)
fixed-mounted to vehic;e provide overall lighting to scened, often on telescoping poles (500 to 1500 watt)

Front 23

junction box

Back 23

a box used when multiple connections are needed from power plant

Front 24

cribbing

Back 24

most commonly used to stabilize objects but has other uses as well.
-solid, straight and free of major knots or splits
-most popular are 2x4 4x4 and 6x6
-usually 36 inches in length

Front 25

impact wrench

Back 25

pneumatic or electric driven
-tools ideal for disassembling machinery in which victim is tangled

Front 26

airknife

Back 26

blast away dirt
-90 too 100 psi
-can almost instantly creat a 1 foot deep and wide hole

Front 27

whizzer saw

Back 27

electric or air driven
-20000 rpm carborundum blade cuts case hardened lock and steel up to 3/4 inch thickness
usefull for delicate cutting suchas rings from swollen fingers

Front 28

winches

Back 28

-should be equipped with handheld remote control devices
-positioned as close to object being pulled as possible (so if cable breaks less recoil)
-can be electric, hydraulic, or power take off

Front 29

come along

Back 29

portable winch operated by manual ratchet lever
-rating of 1 to 10 tons

Front 30

chains

Back 30

alloy steel chains highly resistant to abrasion making them ideal for rescue and extrication

Front 31

incident size up

Back 31

begins with initial dispatch and continues throughout incident

Front 32

scene size up

Back 32

begins as soon as first emergency vehicle approaches accident scene

Front 33

rescuer assesing immediate area around vehicle should assess
rescuer surveying entire area

Back 33

number of victims, sverity of injuries, condition of vehicle, extrication tasks required, and any hazardous conditions

-any other vehicles not readily apparent, any victims thrown from vehicle, damage to structure or utilities that present hazard,

Front 34

three methods of gaining access to vehicle

Back 34

-through normally operating door
-through a window
-by cutting away parts of vehicle body

Front 35

patient removal

Back 35

packaging means wounds have been dressed and bandaged, body immobilized and fractures splinted
-openings should be widened and edges padded with blankets, folded salvage covers or duct tape