How Do I Adjust the Hitachi Condor MDR-21 Pressure Switch?

Hitachi Condor MDR-21 pressure switch is compatible with models of Hitachi power tools, such as circular saws, chain saws and precision tools.

The pressure switch on these power tools turns the tool off when the pressure is released. This is a safety precaution to keep harm from befalling users of such tools. Adjusting the Hitachi Condor MDR-21 pressure switch allows you to change the sensitivity of the switch.

Locate the small metal plate on the front of the Hitachi Condor pressure switch. Two screws in the plate control the pressure of the compressor.

Turn the small screw on the top of the metal plate on the Hitachi pressure switch to adjust the cut in pressure. This is the pressure that turns the compressor on. Turn the screw clockwise to decrease the cut in pressure and counterclockwise to increase the pressure.

Loosen or tighten the small screw on the bottom of the metal plate to adjust the cut out pressure. This is the pressure that turns off the compressor. Turn the screw clockwise to increase the cut out pressure and counterclockwise to decrease the cut out pressure.

Things You Will Need

  • Screwdriver

About the Author

Hollan Johnson is a freelance writer and contributing editor for many online publications. She has been writing professionally since 2008 and her interests are travel, gardening, sewing and Mac computers. Prior to freelance writing, Johnson taught English in Japan. She has a Bachelor of Arts in linguistics from the University of Las Vegas, Nevada.