Broken Spring(s) may cause the door to fall rapidly,
causing SEVERE INJURY or DEATH.
If possible
only use the manual release when the door is closed,
otherwise use caution when using the release while the
door is open.
Moving chain could
cause possible SERIOUS
INJURY.
DISCONNECT
electric power to the
operator BEFORE manually
operating your door
Emergency Release Knob
Trolley
Chain Tensioner
Wall Mount
Emergency Disconnect
MANUAL OPERATION
LDT, LDTB
FIGURE 7
This operator has provisions for manually operating the
door in case of emergency or power failure.
Emergency Disconnect System
1. To Disconnect Door From Operator :
The door
should be fully closed if possible. Pull down and away
from the door on the emergency release knob. (Figure
7) Make sure the disconnect snaps back in the released
position to prevent the trolley from reconnection
automatically. The trolley will release from the chain
tensioner. The door can now be raised and lowered
manually.
2. To Reconnect Door to Operator :
Pull the
emergency release knob toward the door so that the
disconnect snaps to the engaged position. The next
time the chain tensioner slides through the trolley, the
trolley will reconnect with it.
WARNING
WARNING
6
To prevent SERIOUS INJURY or DEATH:
• DO NOT connect electric power until instructed to
do so.
• ALWAYS call a trained professional door
serviceman if door binds, sticks or is out of balance.
An unbalanced door may not reverse when
required.
• NEVER try to loosen, move or adjust doors, door
springs, cables, pulleys, brackets or their hardware,
ALL of which are under EXTREME tension and can cause
SERIOUS PERSONAL INJURY.
• DISABLE ALL locks and remove ALL ropes connected to
door BEFORE installing and operating door operator to avoid
entanglement.
WARNING
