Extrication Flashcards
6 basic principles
• Always expose interior vehicle trim before cutting
• Always try and cut at 90º angles
• Always allow your tool to freely move during cutting
• Never allow your hose/coupling to contact the vehicle during
cutting operations
• If your tool cannot freely move, reposition
• Always monitor blade tips and ensure they have space to
move forward
Exposing interior trim allows you to…
identify the safest area to cut.
identify airbag inflators and seatbelt pretensioners
identify the exact areas of strength.
Identifying substantial construction features such as seat belt anchor bolts and height adjustment rails will allow you to positionyour cutters away from such areas
spread hinges from
top to bottom to move door away from passenger compartment
dual stage airbags
can still deploy because both stages dont always deloy
Taking the medical condition of the patient into consideration, removal of the seatbelt
is recommended as soon as possible
four main locations for the seatbelt pretensioning system
lower B pillar, mid B pillar, inner front seatbelt buckle
area and rear deck area.
crumple zones
These are zones in the car body and chassis developed to absorb the impact
energy of a collision and to prevent energy from being absorbed into the passenger cell and
thus into the occupants of the vehicle.
flexion, tension, torsion
bent (flexion), stretched (tension), or twisted (torsion)
hazards of new seats
Airbag sensors, mini gas cylinders, and in some
case airbags themselves should not be cut through.
To avoid this first always remove the upholstery with
a knife to investigate for hazards before cutting
through with a hydraulic cutter.
hazards of pillars and posts
Reinforcement for the mounting
of the seatbelts can cause damage to cutter blades.
Seatbelt pretensioner systems can also damage
hydraulic cutters. The most hazardous however is
to cut into an airbag inflator. This can be very
dangerous as the release of the compressed gas
inside the cylinder or fragment of the cylinder itself
can cause serious injury
hazards of Automatic Roll-Over Protection
Systems (R.O.P.S.)
These systems deploy as the vehicle begins to roll over.
They are typically stowed behind
the seats in the rear deck area
presents a significant risk to rescuers if deployment accidentally occurs
avoid by disconnecting the battery and avoiding the deployment path.
the _____ battery terminal is disconnected first
negative ( ) to remove the
chance of sparks caused by inadvertantly
grounding the positive terminal.
stabilize car on wheels
3 points ok, 4 better
stabilize a vehicle on its side
support it under the A and C pillars.
Shore the bottom side with mechanical
struts
stabilize car on roof
Chock the space between the back of the vehicle and the ground. Add additional blocks to the space between the engine compartment and the windshield for added stability.
To create an opening over the hinges of the door
squeeze the front fender panel on the highest point
of the wheel well OR
Place the spreader in the front corner of the windowsill.
Spread against the A pillar to create an insertion point over the hinges.
How to remove a door for a car on its roof
-Squeeze the rocker channel in order to create
enough space for the tips of the spreader.
-If necessary, increase the opening by pinching
the metal of the bottom of the door and folding
downward.
-Spread the door outwards away from the body.
how to expose nadar pin
pinch door
spread window
cut sequence for bat wing
expose hinges, cut b post, spread back door, cut b post low, spread b post off
cut sequence for b post lay down
cut
cut sequence for 3rd door
expose hinge, pop front door, cut b post high and low, cut third door, spread open
cut sequence for dash lift
cut
cut sequence for dash roll
cut
