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FC (Forward Control Unique Issues) If you have a unique issue with your FC model coach and it can't be answered in one of the other forums here, then this is where you can list it.......List your FC Parts here too.

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  #1  
Old 09-16-2018
PAIRODOXIES PAIRODOXIES is offline
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Default HWH jack - disable warning buzzer

Can anyone describe theory of operation for the warning buzzer? I managed to destroy my left rear jack. It has been removed and I need to silence the buzzer. I expected to find a prox switch but no joy. The hydraulic line and associated electrical component are now exposed. It looks like that component is a mercury switch, so I figured if I elevated it to the horizontal the buzzer would stop.

What’s the workaround? Maybe a fuse or circuit breaker? Or snip the wires, but am afraid that will do more damage than good when it comes times to install the new jack stand.
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Old 09-16-2018
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Originally Posted by PAIRODOXIES View Post
Can anyone describe theory of operation for the warning buzzer? I managed to destroy my left rear jack. It has been removed and I need to silence the buzzer. I expected to find a prox switch but no joy. The hydraulic line and associated electrical component are now exposed. It looks like that component is a mercury switch, so I figured if I elevated it to the horizontal the buzzer would stop.

What’s the workaround? Maybe a fuse or circuit breaker? Or snip the wires, but am afraid that will do more damage than good when it comes times to install the new jack stand.
Track down the buzzer and disconnect the +.
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Old 09-16-2018
f.wernlein f.wernlein is offline
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Interesting...as far as I know, on our '85 FC we have the dash warning lights, but no audible alarm/buzzer for the HWH jacks. The mercury switch is what activates our "jacks down" lights on the dash - know that cause I've played with one.

My dash area audible alarms are for low air (brakes), the shore power cord, and the Kysor system (coolant low, coolant overheat, etc.).

Where exactly is the buzzer located in relation to dash?
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Old 09-16-2018
PAIRODOXIES PAIRODOXIES is offline
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Interestingly enough rotating the mercury switch vertically stops the alarm. I’ll have to get back to you on the location of the buzzer - need to see if the Vikes can close this gap!
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Old 09-16-2018
PAIRODOXIES PAIRODOXIES is offline
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As near as I can tell, the buzzer is located “above” the brake pedal but I cannot touch it or see it. May have to open up the left front headlight to get at it.
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Old 09-16-2018
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Originally Posted by PAIRODOXIES View Post
As near as I can tell, the buzzer is located “above” the brake pedal but I cannot touch it or see it. May have to open up the left front headlight to get at it.

Yep,open the front and they will be above the skinny pedal.
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Old 10-04-2018
JMorton JMorton is offline
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I am having a similar issue in my 88 PT40, and have another 500 miles to drive before I can actually fix the problem. Is the buzzer also accessible by opening the front access panel?
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Old 10-05-2018
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I am having a similar issue in my 88 PT40, and have another 500 miles to drive before I can actually fix the problem. Is the buzzer also accessible by opening the front access panel?
On my '93 that is where they are located. Right in front of the driver.
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Old 10-23-2018
PAIRODOXIES PAIRODOXIES is offline
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Default Buzzer location

The attached photo shows the location of HWH alarm buzzer in my 86FC31. The photo is rotated CW 90 degrees - the buzzer is a small metal box mounted vertically on the frame to the left just as you open the LF headlight access door.
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