Bounty Hunter Tracker IV Question

[AZDET]

I recently acquired a Tracker IV. Underneath where the control box is attached to the rod, between the two screws is a hole that appears to go through the rod and up into the control box. Using a flashlight, I can see what looks like a small Phillips screw that is in the control box. Does anyone know what this screw is for? I thought maybe it's for some sort of adjustment, although the manual says nothing about it. I've enclosed a stock photo showing the hole.

 

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[67GTA]

I don't think there are any manual adjustments on that machine. It has a more modern circuit board as opposed to the older machines with adjustable pots. Probably just securing the speaker or circuit board to the housing.

 

[AZDET]

I don't think there are any manual adjustments on that machine. It has a more modern circuit board as opposed to the older machines with adjustable pots. Probably just securing the speaker or circuit board to the housing.

Thanks for responding. Just thought it might be something that was adjustable because it had a hole through the rod that could be reached with a screw driver.

 

[Mayan Hunter]

I second the opinion of 67GTA and wouldn't worry about it.

 

[AZDET]

I second the opinion of 67GTA and wouldn't worry about it.

Thanks for responding. I wasn't worried about it, just wondering if it was some kind of adjustment.