Chamberlain MT5011U - Adjustment Procedures; Adjusting Travel Limits; Adjusting the Clutch

15
To avoid SERIOUS personal INJURY or DEATH from
electrocution:
• Disconnect electric power BEFORE performing ANY adjustments
or maintenance.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNING WARNING
PRECAUCIÓN
ADVERTENCIA
ADVERTENCIA ADVERTENCIA
Retaining Plate
Decrease Door
Travel
Increase
Door Travel
OPEN Limit Switch
OPEN Limit Nut
CLOSE Limit Switch
CLOSE Limit Nut
SAFETY Limit
Switch
Decrease Door
Travel
Increase Door
Travel
NOTE: When retaining plate is released, verify that the retaining plate is fully seated with the notches of the limit nut.
ADJUSTMENT
A B
Spring
Clutch Nut
Clutch Nut
To
Loosen
To
Tighten
ADJUST THE LIMITS
Depress retaining plate.
Adjust OPEN limit.
Adjust CLOSE limit.
12
3
Apply power to operator. Remove tape holding cotter pin to spring.
1
2
3
4
Turn clutch nut to release tension.
Re-tighten nut until there is just enough tension to permit
smooth operation.
Replace cotter pin. Bend ends of cotter pin to secure clutch nut.
ADJUST THE CLUTCH