[CAUT] buzzing truck

[Fred Sturm]

Hi Conrad,
	I tighten _tight_ only if I have a buzz. But I think your idea of a  
felt or leather washer is a better one, so you can have it "tight" but  
still easy to swivel. For a new install, I swivel it under the leg and  
position, then swivel out and tighten, then swivel under again and  
tighten the arm bolt (well, it varies depending on which arm it is in  
order - don't want to tighten the first one too much until the other  
ones are in place). And tighten all the "stop sign" bolts while two  
ends are on wedges, the other held up by the horse: there is  
relatively little stress there at that point.
	Funny how the buzz seems to come from somewhere else, judging by ear.  
I usually find that the machine screw is flapping around in the hole,  
and occasionally that the nut had disappeared.
Regards,
Fred Sturm
University of New Mexico
fssturm at unm.edu



On May 16, 2008, at 4:29 AM, Conrad Hoffsommer wrote:

> Fred Sturm wrote:
>> Ditto on the swivel cups. And since you can't access the slotted  
>> screw head, you have to swing the arm away to tighten
>
> You can actually tighten them on yours?  All the ones here have an  
> oversize hole in the swivel plate/caster cup.  I thought that was to  
> allow for final positioning as you are lowering the leg to the truck  
> and the screw just keeps the caster cup on the arm.
>
> I find that you have to swing the arm out, or at least release the  
> weight to fully tighten the center plate.
>
>
>
>
> -- 
> Conrad Hoffsommer, RPT - Keyboard Technician
> Luther College, 700 College Dr., Decorah, Iowa 52101-1045
> 1-(563)-387-1204 // Fax 1-(563)-387-1076
>
> You have the right to remain silent. Anything you say can and will be
> used against you.