Chassis Mounting Tip

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BobW
Posts: 793
Joined: Mon Feb 06, 2006 8:15 pm
Location: Huntsville, AL

Chassis Mounting Tip

Post by BobW »

While trying to initially mount the chassis (Funks chassis) into my head cab, I let the chassis sag too much causing two of the screws to cross thread and bind in the slab base weld nut plates. Darn!

Lessons learned: Don't let this happen to you.

Turn the head cab upside down, slide the chassis in / align and let gravity keep the chassis flush with the cab, while mounting the screws.
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ic-racer
Posts: 1318
Joined: Tue Dec 18, 2007 2:24 pm

Re: Chassis Mounting Tip

Post by ic-racer »

I use these weld nuts also and found I could put the cabinet on its side, and slide the chassis in-and-out that way. With the cabinet upside down I can't get the chassis bolts in :shock:
BobW
Posts: 793
Joined: Mon Feb 06, 2006 8:15 pm
Location: Huntsville, AL

Re: Chassis Mounting Tip

Post by BobW »

Or hang the upside down cab off the work bench, one side at a time. If your chassis has a little wiggle room from side to side, turing the cab on it's side could still result in misalignment. I was suprised to learn how a very small amount of torque, plus the weight of the amp, caused the nut plates to bind. The binding was my fault for not properly supporting the chassis.
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Luthierwnc
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Joined: Sat Feb 18, 2006 10:59 am
Location: Asheville, NC

Re: Chassis Mounting Tip

Post by Luthierwnc »

I usually just stand the cab on end and slide it in upright. If it isn't a tight fit side-to-side, I'll just shim it to the proper height and pull the shim when it's secure. Skip
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markmalin
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Re: Chassis Mounting Tip

Post by markmalin »

after installing and removing the chassis about a billion times I discovered if I lay the cabinet face down and slide the chassis in place, it works really slick. You can get at the screws, you're not holding the chassis in place, and you can carefully thread the screws in.

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