Grizzly H2682 User Manual

H2682 & H2683

MASTER

MACHINIST'S

LEVEL

INSTRUCTIONS

These incredibly accurate levels

are used for setting up lathes,

milling machines and other fine

machinery. The H2682 has a

resolution of .0002" over a 10"

span. The H2683 has a resolution

of .0005" over a 10" span. If you

put a newspaper page under the

machine that you are leveling, the

bubble will move!

Checking the level's accuracy:

1. Place the level on a clean

surface. Make sure the base

of the level is wiped clean. Dirt

and dust can affect the

accuracy of your readings.

2. If the bubble in the large vial is

pegged to either side, rotate

the level until the bubble is

close to center. You can also

adjust by placing shims under

one end of the level.

3. Take note of the bubble

reading in the large vial. Mark

where the level rests on the

surface before the next step.

4. Rotate the level exactly 180°

and take note of the bubble in

the large vial. If the bubble

does not line up opposite the

first reading, within one half of

a line, it needs to be adjusted.

Adjusting your level:

1. Unthread a screw from the

side plate, and insert it into the

end cap, on the end opposite

the small vial, if you have the

8" level. If you have the 12"

level, insert the screw in the

side cap. Use pliers to pull out

the end cap. Be careful to not

lose the spring.

2. Loosen the top jam nut with

the included wrench. Move the bottom nut to adjust the level. Clockwise moves the nut down, and counter-clockwise moves it up. This level is so sensitive that resting your weight on the surface that you are leveling can affect the readings!

3. Recheck the level for

accuracy. Repeat Step 2 if it is

not accurate.

4. When accurate, tighten the top

jam nut onto the bottom jam nut to lock the adjustment in place. Let the level sit for 2-4 hours and check for accuracy again.

Machinist’s Level Usage

1. Clean the surface to be

leveled and the base of the machinist’s level. Grime and metal shavings will affect the accuracy of the readings.

2. Place your level parallel with

the edge and in the center of the surface to be leveled.

3. Adjust the surface to be

leveled so that the bubble in the small

vial is centered. The bubble should come to a complete stop in the exact center of the vial.

4. Next, adjust the surface so

that the bubble in the large

vial

is centered.

5. Rotate the level 90° and repeat Step 4.

Small Vial

Large Vial

End Cap

Side Plate Screw

Large Level

Jamb Nut

Printed in China