41. A 9-volt transistor radio battery will usually provide enough current to deploy an airbag. Use a 12-volt or 18-volt battery if the bag won’t deploy off the 9 volts. (i.e. Ford Escort airbags)
42. Cutting away side covering exposes inflator unit wires which detonator lamp cord is spliced into
43. Unscrew airbag module to expose inflator unit wires that detonator lamp cord is spliced into.
44. Recip saw is best to remove section of instrument panel, providing access to end of inflator unit
45. Inflator module is a cylinder-shaped unit. Detonator lamp cord is spliced into wires coming out of end of unit.
46. Close-up view of end of passenger frontal airbag inflator unit with lamp cord spliced in.
47. For a door side-impact airbag, remove portions of door panel to access wires of inflator unit.
48. Typical stored gas inflator module for door side-impact airbag with airbag wiring harness visible. Splice into this wire.
-Problems encountered are due to a combination of use of HSLA steels and new construction methods. i.e. the ‘corrugated’ pillar/post; foam material used to fill the void spaces in the frame for stiffening/sound reduction. -Most common HSLA are vanadium, columbium and titanium
HSLA steel is three times stronger than low carbon steel. It is used in roof pillars, cross roof members, cross floor beams and other areas Low Carbon steel has a strength of approx 23,000 psi, Micro Alloy and Boron have a strength of 110,000 – 210,000 psi Monocoque (one shell) chassis have some interesting characteristics. The shell, which bears a distinct resemblance to a space frame, acquires enhanced strength when sheet metal body panels are attached. Depending on the manufacturing process, some monocoque chassis give the impression that there is a frame under the car. The metal that goes into this type of frame varies from mild box steel to HSLA (high strength/low alloy) steel. This metal is up to three times stronger than low carbon steel and is more difficult to cut, which adds to extrication time. Space Frames , which are prevalent today, formerly have been described as a chassis resembling a bird cage; however, many new space frames tend to resemble monocoque chassis. The actual space frame is made from box sheet metal or aluminum, with body panels attached to the shell. Space frames, like many other chassis, have progressive crush zones that make them very rigid. Body panels attached to the structure are often plastic.
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