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GOODSON Tools and Supplies for Engine Builders. Calibrating and Maintaining Your Precision Machinists Level. Replacing the Vial. Step One Remove the 3/8” top nut Be sure to leave the bottom nut in place . Replacing the Vial. Step Two Remove the slotted screw on the opposite end completely.

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goodson tools and supplies for engine builders

GOODSONTools and Supplies for Engine Builders

Calibrating and Maintaining Your Precision Machinists Level

replacing the vial
Replacing the Vial

Step One

  • Remove the 3/8” top nut
  • Be sure to leave the bottom nut in place

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

replacing the vial3
Replacing the Vial

Step Two

  • Remove the slotted screw on the opposite end completely

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

replacing the vial4
Replacing the Vial
  • Spherical chamfered end mounts with screw and spherical washer

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

replacing the vial5
Replacing the Vial
  • The straight, non-chamfered hole mounts on the stud.
  • Be sure the bottom nut is in place before placing the replacement vial.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

replacing the vial6
Replacing the Vial

Step Three

  • Tighten the screw to only 1 to 2 inch pounds, maximum

NOTE: If you get the screw too tight at this time, you risk breaking the vial as you adjust the leveling nuts (step eight)

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

replacing the vial7
Replacing the Vial

Step Four

  • Install the adjuster nut finger-tight at this time.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

replacing the vial8
Replacing the Vial

Step Five

  • Uncover the vial and prepare to calibrate the level

NOTE: Always store the level with the vial covered.

While replacing the level vial assembly, be careful and keep the vial cover closed.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

calibrating the level
Calibrating the Level

With your new level vial installed, you are now ready to calibrate the level

Select a flat smooth surface. Ideally a machined surface such as the table of a guide and seat machine or head resurfacer.

Clean the surface and remove any nicks.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

calibrating the level10
Calibrating the Level

Step Six

  • Use a pencil or Sharpie to draw a line around the level base
  • Use this outline to place the level in the same place each time you rotate the level end to end while calibrating.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

calibrating the level11
Calibrating the Level

Step Seven

  • Rotate the level 180˚ (end for end) and observe where the bubble aligns each time. You will be splitting the difference as you adjust the leveling nuts.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

calibrating the level12
Calibrating the Level

Step Eight

  • Adjust the nuts to raise or lower the vial bubble.

NOTE: Always raise and lower the nuts simultaneously. Maintain a slight locking pressure on the level mounting ear.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

calibrating the level13
Calibrating the Level

Raise this end 1/2 of the difference (see step seven)

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

calibrating the level14
Calibrating the Level

This is the result of the adjustment made using the readings observed in step seven.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

calibrating the level15
Calibrating the Level

Success!

  • When you can rotate the level 180˚ (end to end) and the reading repeats, your level is calibrated.

NOTE: You do NOT need to have the bubble at the center of the level for it to be calibrated. You must only repeat the reading when rotating end for end.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

calibrate the level
Calibrate the Level

Step Nine

  • Snug down the fasteners. DO NOT over tighten!
  • Check your readings to be sure nothing has moved. If it has, repeat adjustment procedures.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

level your work
Level Your Work

You are now ready to level your work.

When leveling, always back level. Rotate your level 180˚ to be sure it repeats.It’s quick insurance that your level is remaining true.

Toll Free: 1-800-533-8010 Phone: 507-452-1830: Web site: www.goodson.com

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