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how many of you keep the grounding strap on the bounce plate [img]/content/btubb/images/%%GRAEMLIN_URL%%/confused.gif[/img] do you think it serves a purpose.
and on a 70 distributor do you have a plastic or metal flat roller for the carrage tube.
and do you think they serve a purpose if you don't have amf scoring or if you do. [img]/content/btubb/images/%%GRAEMLIN_URL%%/eek.gif[/img]
el crudo
if things aren't going right just use a bigger hammer! DIRT
One time I tried to apply that stupid grounding strap and stabbed my finger. It really hurt! getting blood on a brand new carpet pist me off cuz I try so hard not to step on it so I never paid any attention to them again. I heard back in the day they were used to discharge the static electricity that was built up from the friction of the carpet and the bounceboard. But does plastic hold a charge? The pumpkin carpets are made of PVC, so I dont see how that would work. And i use the metal concentric rollers on the bottom. Didnt know they made plastic ones. But that roller is important because the assy would tilt otherwise.
Still grounding the pits, but got rid of the steel distributor rollers. To ground the distributor carriage, I take the 82/90 pinwheel grounding brush and bend it so that I can bolt it onto the front casting (where the LH sheet steel bolts to the front main casting)and have it contact the underside of the LH carriage tube. Tested it with a meter . . . better ground continuity than the steel bearing!! [img]/content/btubb/images/%%GRAEMLIN_URL%%/wink.gif[/img]
Still use the grounding straps as the ounce of prevention.
Every belt will build static and it has to go somewhere.
Although AMF who knows why, put the grounding strap onto the bounce plate. Unless I'm wrong I don't reguard them as conductive material.
I know most of you guys don't bother with the ball idler; I punch out one of the nuts and put my strap here grounding the idler to the support bracket. After all, it touches the carpet.
Mainly with accusonic pin sencing for sure use the strap. Parts are hard to come by.
Cameras and installs with very little curtain wall components can get by without it.
Pinspotters do not break down when they are not running!
Any time you rub cloth or rubber over plastic, you will get static electricity... I've seen sparks from the distributor belts running over a plastic or nylon drivewheel jump almost 1/4" or more to a grounded part of it. The carpet belt builds up a lot of static because the rollers are mounted in rubber brackets, so there's no direct path to ground.
I agree, if you're using accusonic scoring, ball sensors or other devices on or in the machine, static can play hell with them; the grounding straps are required to prevent problems.
Other than that, if your machines don't fall into that category, get rid of those knucklebiters... you'd have less holes in your fingers from juggling porcupines than you would handling or working around a frayed strap.
<span style="font-style: italic">Educatio est omnium efficacissima forma rebellionis</span>
thanks for the input guys [img]/content/btubb/images/%%GRAEMLIN_URL%%/wink.gif[/img]
I had somebody call and ask if I use the grounding strap and I said no not for years.
and the flat metal roller if it's already on I
leave it on but have never bought any to put on.
and the ball idling bracket I have them on all.
I know some guys don't like them [img]/content/btubb/images/%%GRAEMLIN_URL%%/confused.gif[/img] they say it's harder to get the front roller out but I would rather not have balls on the front roller!! and yeah I know they fall off once in awhile. :p el crudo
if things aren't going right just use a bigger hammer! DIRT
We have metal flat rollers on the dist. but no bonding straps on the bounce plates. I hope to need them soon. Don't have any additional electronics yet, just the chassis.
I have AMF scoring and ball triggers but no bonding straps. Most of my machines have the nylon distributor rollers. I never have any trouble with any of the electronics.
Give me a hammer and some duct tape and I can fix it!
Originally posted by 8270 pinspotter: I have AMF scoring and ball triggers but no bonding straps. Most of my machines have the nylon distributor rollers. I never have any trouble with any of the electronics.
<font size="2" face="Verdana, Helvetica, sans-serif">Pretty much you won't anymore, even if you do have a slight static condition. Today's electronics are shielded better, and are a bit more resistant to static 'noise' than the old solid-state stuff was. A direct 'hit' from a static charge to a board will usually damage it, but passive static around it won't bother it a bit.
Biggest thing anymore is to NOT defeat or remove any grounding devices that are directly connected to the electronics (such as an aluminum or copper shielding plate attached to a board, or a 3-wire grounded power supply). If it has a 3-pin grounding-type plug, it is NOT acceptable (and sometimes downright dangerous) to cut off or 'cheat' the grounding pin to make it fit a 2-prong receptacle. Change the receptacle it plugs into to the correct one and ground it properly. Those grounds do more than protect you from a shock... most boards have a printed grounding circuit that runs all around the board, that protects it from static and noise, and removes charges like that to ground (a good example is the 'bleeder' or 'static-drain' wire that runs around a picture tube, that takes the high-voltage static charge away from it).
<span style="font-style: italic">Educatio est omnium efficacissima forma rebellionis</span>
Can somebody give an explaniton how pins 2, 3, 6 are supposed to be connected. I had a shortcircuit there for the drive motor connection because of water leakage.
I have a distributor that is pulling the belt hard to the left in the nine pin position (and possibly 6 pin), but seems fine in the other spots. As you can see the residue and...
I have several Pin Elevators that I believe to be out of round on my XLi's and was curious if anyone has ever run across this before and is so, what you did about it.
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but I would rather not have balls on the front roller!! and yeah I know they fall off once in awhile. :p el crudo
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