Miter saw maintenance and specifications

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Shop Area: Woodshop

Tool: Miter Saw

Requires in-person training: Yes 

Procedure Number

MT 110-04, Rev. 1




To make cross cuts, miter cuts, bevel cuts, and compound cuts using a sliding miter saw.

Hitachi C12RSH Sliding Dual Compound Miter Saw

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Problems with a compound miter saw can include issues related to the motor, blade and mechanism.

  • Look to ensure the saw is plugged in properly, and check for a blown fuse or tripped circuit breaker if the saw won't start. Replace the brushes by removing the motor end cap and lifting the brush spring to withdraw the brush assembly. Replace with new brushes in the reverse order as they came out.
  • Access the blade by unplugging the saw, raising the arm and lowering the guard down as far as you can. Loosen the guard bracket screw until the bracket is raised up far enough to reach the blade screw. Press down the spindle lock button, and turn the blade by hand until the lock is engaged. Loosen the blade screw with a wrench, then remove the screw, the outer clamp washer blade, the blade adapter and the blade itself.
  • Inspect, clean and replace the electrical brushes if the brake doesn't stop the blade within a few seconds of turning the saw off, or if the motor doesn't start. Let the motor cool down and unplug the saw. Pull out the brush from under the cap and replace it if has less than ¼ inch of carbon on it.
  • Replace the cutting blade, turn the blade around or remove it, and clean it off with turpentine and steel wool or oven cleaner if the saw isn't making clean cuts.
  • Adjust the depth stop if the blade hits the table. Turn the saw off and remove the work piece. Drop the cutting head down so that the blade teeth extends ¼ inch below the throat plate. Loosen the wing nuts, or hex screws and readjust the blade depth to the desired depth. Try the motion again with the still saw off, and make sure the blade doesn't touch anything.
  • Adjust the cutting head assembly pivot if the cutting head won't rise after you make a cut. Loosen the lock nut on the head and then tighten the hex bolt to put more pressure on the spring. Retighten the lock nut when the right travel is obtained.

List of Specifications

Miter Spec Table.png

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