Need adjustment info for Brown & Sharpe Digit Mike

[Lucky Shooter]

Anybody have a source of information for adjusting and calibrating this tool.

Details: Digit Mike 1-2" 599-20-10-1

Zero when closing on a 1" gage block reads .023X.

The spindle lock is loose and misaligned.

Would appreciate any help.

A. Weldy

 

[Chris Covell]

Do you have a picture of the mic? I have one with the paperwork.

 

[Chris Covell]

I can take pictures of the paperwork if it’s the same kind of mic.

 

[Lucky Shooter]

Thank you Chris but we're dealing with two different models.I also have a 200 like yours and the instruction sheer is still with it.

I prefer the 200,201 series over the Digit Mike series but both models are fine pieces of work. I hope yo get lucky and find a 201
for 1-2" work.

In the meanwhile I'll continue to look for instructions on the Digit Mike.

Thanks again Chris.

A. Weldy

 

[Riesel]

You might try a Google search. There are a sites that offer instruction sheets/manuals.

 

[Daddymac]

This is a cut and paste from the web site mentioned at the end, best I can tell this micrometer was made for Brown & Sharpe by Tesamaster, hope this helps.

Zero Setting the Display

• Carefully clean the exposed areas of the spindle well as the measuring faces.
• Except for the 0-25 mm (0-1") model, it will be necessary to use a gage block or micrometer setting standard.
• The micrometer and the gage block or standard must be at the same temperature. Allow them to acclimatize and stabilize for several hours if necessary.
• Close the measuring faces using the spindle's friction sleeve.
• For small deviations you can rotate the barrel slightly by using the setting key (supplied). There is a small hole near the front of the barrel for this purpose.
• For larger deviations, unscrew the end cap, loosen the lock screw using the 2 mm Allen wrench (supplied) and adjust the thimble into the proper position. Reassemble the micrometer.
• Repeat the measurements as necessary until the display reads correctly.
• End user maintenance is not recommended and, if necessary, the micrometer should be returned to a repair shop such as Long Island Indicator Service.

 

[geo.ulrich]

these instructions are good but will add loosen screw slightly then tap lightly to unseat taper turn thimble and retighten...

 

[LCazador]

What Ulrich says. You need to unseat the taper turn thimble to make the calibration work!

 

[hotrodlouie]

Looking at the picture there is a spana wrench. on the mic barrel should be
a small hole you use spana wrench to adjust to zero

 

[Dusty Stevens]

Looking at the picture there is a spana wrench. on the mic barrel should be
a small hole you use spana wrench to adjust to zero

The spanner is for fine tuning the tenth reading. He is 23 thousandths away

 

[Lucky Shooter]

I got lucky----the sleeve on the barrel was way out of position for normal operation.
Putting the sleeve in a more normal position, with the spanner wrench, also put
the ZERO mark very close.

A little tweaking with the spanner finished the zero adjustment using a 1" gage block.
A 2" gage block also measured correctly.

I was not successful in removing the end cap and don't wan't to risk any damage
to such a fine tool. I'll deal with the end cap if and when I have to.

Thank all of you for your replies.

A. Weldy