MGRL/MGHL SERIES
04/08
8
LIMIT SWITCH ADJUSTMENT
Make sure the limit cams are positioned between the limit switch actuators before
proceeding with adjustments.
1.
Open / Remove the control panel cover.
2.
Open or close door to determine the moving direction of the limit switch cams.
3.
Open or close door to the desired position.
If the door is opened or closed electrically,
to avoid serious injury or death,
disconnect power before manually moving limit switch cams.
4.
While pressing the spring-loaded lever (G), which holds the limit switch cams in place, adjust
the limit switch cam (E or F) until the micro switch (C or D) clicking sound is heard.
5.
If the limit switch cam cannot be rotated to its desired position, release the lever and move the
door away from the desired position, then adjust the limit switch cam to its desired position.
It may be necessary to repeat this step until the exact position has been reached.
6.
Repeat step 3 and 4 for the opposite position. Adjust close limit cams so that actuator is engaged
as door fully seats at the floor.
7.
Micro switch (A or B) can be adjusted to accommodate sensing edge cut-off position.
8.
Micro switch (H) can be adjusted to lengthen or shorten lock sensor distance.
Warning: Factory default for lock sensor is 4~6 inches. Door might be damaged if adjusted
too short. Operator might be inoperative if adjusted too long.
NOTE:
“C” is usually the opening side and “D” is usually the closing side.
WARNING
Summary of Contents for MGHL Series
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