Lyman scales


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Grassman
December 7, 2008, 09:32 PM
Anyone familiar with the Lyman D5 scale? Having trouble getting it balanced. I Put both marks on zero, and adjusted screw on the left side, but still not right. any thoughts?

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rfwobbly
December 7, 2008, 09:41 PM
The photo I found of the Lyman D5 showed it to be a standard Ohaus scale. Set all the weights on zero. With the empty pan in place, screw the thumb-wheel that's the 3rd foot (on the far left) either up or down until the scale zeros.

If the scale won't "zero" repeatably, then there may be minor rust on the knife edges. Remove the balance beam and look closely at the wedged-shaped pivot point. Don't sand it, simply rub some grease on it to dissolve the rust and keep it from re-forming.

If with all this you still can't get the scale to come to zero, remove the pan to discover a screw. Under the screw is a compartment you can add or subtract sand (or other small weights) to bring it to zero.

qajaq59
December 8, 2008, 07:48 AM
If with all this you still can't get the scale to come to zero, remove the pan to discover a screw. Under the screw is a compartment you can add or subtract sand (or other small weights) to bring it to zero. Hmmm, I had one of those for a long time and never knew that. Learn something new every day.

243winxb
December 8, 2008, 08:35 AM
Avoid locating mechanical scale within three (3) feet (one meter) of fluorescent lights. The electromagnetic fields generated by such lights can cause weighing errors. Static electricity near a scale can affect measurement accuracy just as much as a stray air current. Always use a powder pan made from metal or from static dissipative plastic (e.g. the Lyman Powder Pal). PACT recommends washing their powder pan occasionally with soapy water and allowing the soap film to dry on the pan. The soap film helps dissipate static electricity. Keep any plastic materials away from the scale, including plastic loading blocks, die storage boxes, ammunition storage boxes, AkroBins, Styrofoam and vinyl. Keeping a clear space around the scale is generally a good practice anyway. http://www.thehighroad.org/showthread.php?t=411418

ranger335v
December 8, 2008, 10:38 AM
"...adjusted screw on the left side, but still not right. any thoughts?"

I think you need to tell us more. What's not right and how is it not right?

We need to know:

Has it worked well previously or never been right?

Won't zero at all? Read High? Low?

Won't follow small changes? Or drags when doing so?

Won't weight correctly? Or is it inconsistant when doing so?

243winxb
December 8, 2008, 10:42 AM
Make sure the surface is Level where the scale is sitting. http://www.northeastshooters.com/vbulletin/archive/index.php?t-2023.html

TimRB
December 8, 2008, 11:07 AM
"Avoid locating mechanical scale within three (3) feet (one meter) of fluorescent lights. The electromagnetic fields generated by such lights can cause weighing errors."

How?

Tim

rcmodel
December 8, 2008, 01:27 PM
If all else fails, you may have a replacement scale pan of a different weight then the original one.

rcmodel

rfwobbly
December 8, 2008, 01:38 PM
http://www.reloadersauction.com/thumbnail.php?pic=uplimg/img_107451_0943f03d18969617466d9108efca0528.jpg&w=500&sq=Y&b=Y

Does your scale contain all the parts shown in the photo above?

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