ADDENDUM
LOCK SENSOR
Models DH, DJ, and DHJ
APPLICATION REQUIREMENTS
This modification is available to models H and J Logic operators.
FUNCTIONS
This modification stops the operator from running when extra tension is sensed on the door from the mechanical door lock, obstruction, or extensive binding.
OPERATION
When the lock sensor senses an excessive load while running the open cycle from the close limit, the lock sensor will stop the operator. Press the close button and run the operator until it shuts off (to unlock the door when the load is removed).
NOTE: Refer to lock sensor addendum for adjustment. For all other installation instructions refer to owner’s manual provided with operator.
L O C K S E N S O R A D J U S T M E N T
FINE ADJUSTMENT
• To increase opening force, tighten the wing nut.
• To decrease opening force, loosen the wing nut.
COURSE ADJUSTMENT (IF REQUIRED)
1. Release spring pressure on pivot arm.
2. Loosen but do not remove two mounting screws.
3. Fully tension final reduction chain and rotate lock sensor until switch is in activation mode.
4. Tighten mounting screws (2) to secure lock sensor position.
5. Repeat fine adjustments.
Moving parts may cause SERIOUS INJURY. Keep hands
CLEAR of sprockets, chains, and other moving parts when making adjustments.
CAUTION
Chain Idler Sprocket must engage top side
Lock Sensor Switch
AVERTISSEMENT
ATTENTION
01-31376C
© 2010, The Chamberlain Group, Inc.
All Rights Reserved
ADVERTENCIA
PRECAUCIÓN
WARNING
WARNING
AVERTISSEMENT
AVERTISSEMENT
ADVERTENCIA
ADVERTENCIA
