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how to test a 'clock spring'?

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Old Aug 27, 2003 | 08:25 PM
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Default how to test a "clock spring"?

After blowing air bags...how do you know if you need a new clock spring? I see it's 2 wires but what can you do to test it?
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Old Aug 27, 2003 | 11:57 PM
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Default Re: how to test a

check for continuity just make sure you unplug the crash module prior to messing with anything.
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Old Aug 28, 2003 | 06:03 AM
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Default Re: how to test a

thanks....bags are blown so it is plenty safe
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Old Aug 28, 2003 | 09:28 AM
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Default Re: how to test a

You can never be to safe with srs systems, modern day air bags contain 2 charges. one hard charge and one soft charge, durring an accident the crash module analyzes the data from the crash sensors and vechicle speed and brake aplication, Then it decides if both charges are needed, The soft charge is lit off first to soften the blow of a face on the wheel, t he second charge is the one that plats your *** back in the seat. When ever we have a blown bag at work we always take it out and run about 50 ft of wire to it and touch it off, I have seen secondary charges put the bag 20-30ft in the air. Air bags are really dangerous and should be treated like a loaded weapon.
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Old Aug 28, 2003 | 09:46 AM
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Default Re: how to test a

Well said Brad, They should only be dealt with by professionals.
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Old Aug 28, 2003 | 12:17 PM
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Default Re: how to test a

Do all professionals blow bags for fun? I know I do!
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Old Aug 28, 2003 | 06:36 PM
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Default Re: how to test a

LOL...well since the bags are blown, how is it you expect me to get injured testing the clockspring?
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Old Aug 28, 2003 | 08:42 PM
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Default Re: how to test a

Like I said before you can not be sure that both charges have blown, not to mention you did not say what kind of vechicle, you clould blow a side impact bag or a pretensioner, or cause damage to the ecs or crash sensors if you do not un plug them.
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Old Aug 28, 2003 | 10:20 PM
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Default Re: how to test a

let me rephrase...the 00 TA bags are out sitting in the driveway......of course that still doesn't answer my question but your info about multiple charges is appreciated. Continuity test...that's it?
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Old Aug 28, 2003 | 11:28 PM
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Default Re: how to test a

yep continuity test is all you got continuity you should be fine.
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Old Aug 30, 2003 | 07:31 AM
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Default Re: how to test a

Like I said before you can not be sure that both charges have blown, not to mention you did not say what kind of vechicle, you clould blow a side impact bag or a pretensioner, or cause damage to the ecs or crash sensors if you do not un plug them.
Whoah, there's a bit of mis-information floating around on this thread... On DUAL-STAGE airbags, yes, there are two "charges" (kind of a bad descriptive word to use). Using these two initiators, the airbag system can vary the deployment speed depending on the severity of the crash. The deployment speed is changed by altering the time-delay between activating initiator-1 and initiator-2. However, *always* both stages are activated during a crash; sometimes its 10ms time-delta for a high-output deployment, sometimes its 100ms time-delta for a low-output deployment... This renders the airbag as being completely "spent" and harmless.

Hope this helps.
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Old Aug 30, 2003 | 09:52 AM
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Default Re: how to test a

Inflators


Inflators are the devices which pump the gas into air bags to inflate them in a crash.


Single stage inflators. Single stage inflators fill air bags with the same level of power in all crashes, regardless of whether the crash is a relatively low or high speed crash.


Multi-stage inflators. Multi-stage inflators (also known as multi-level inflators) operate at different levels of power, depending on which stage is activated. The activation of the different stages can be linked to crash severity sensors. In a vehicle with dual-stage inflators, only the first stage (lowest level of power) will be activated in relatively low speed crashes, while the first and second stages (highest level of power) will be activated in higher speed crashes. As crash severity increases, so must the pressure inside the air bag in order to cushion the occupants.
http://www.nhtsa.dot.gov/cars/rules/...NPRM/AppB.html


national highway traffic association website

think they misunderstood too?
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Old Sep 2, 2003 | 06:54 PM
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Default Re: how to test a

Hey cable
was your clock spring ok ?
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