REFLECTOR: velocity website changes.

[Scott Derrick]

If you brake really hard, heat up the disk to sizzling hot and then 
stand on the brakes, you will transfer brake pad material onto the 
disk.  This will cause brake chatter, and with our flexible main gear 
legs could shimmy the gear.

New disks are particularly susceptible to this problem.

Scott

Ron Brown wrote:
> Scott,
>
> Speaking of main gear shimmy, my 173 with Matco brakes used to 
> shimmy/shudder around 30 knots .  I tried tightening the tight pivot bolts 
> and that didn't help mine.
>
> When I replaced the brake pads at 215 hours with Rapco metallic pads, I used 
> a disk sander and roughened the disks.  All shimmy/shudder is GONE!  I am up 
> to 330 hours now and still smooth stopping, all the way down to zero kts.  I 
> think the disk sander removed some pad residue that had collected on the 
> disks and were causing the chatter.
>
> My main gear pivot lock nuts are still plenty tight - but my engine doesn't 
> run as hot as some of the others.
>
> Thanks for staying in touch with all of us on the Reflector!!!
>
> Ronnie Brown
> N713MR
> 173 Elite RG
>
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