Chamberlain T User Manual page 7

MANUAL RELEASE
EMERGENCY DISCONNECT SYSTEM
MODEL H, GH, J, AND HJ
This operator has provisions for manually operating the door in
case of emergency or power failure. Refer to the appropriate
instructions below for your model operator.
MODEL H AND GH
These operators are equipped with a manual hoist. An electrical
interlock will disable the electrical controls when the hoist is
used. To operate the hoist:
1 Pull the disconnect chain (sash chain) to engage the hoist
mechanism. The disconnect chain may be locked in position
by slipping the end through the keyhole of the chain keeper
mounted on the wall.
Operate the door in the desired direction by pulling on one
2
side or the other of the continuous loop hoist chain.
The disconnect chain must be released from the chain keeper
3
before the door will operate again electrically.
MODEL J
This operator has a floor level disconnect chain to disconnect the
door from the door operator.
1
To disengage, pull the disconnect chain (sash chain) and
secure in the disengaged position by slipping the end
through the keyhole bracket mounted on the wall.
2
The door may now be pushed up or pulled down manually.
3
Release the disconnect chain to operate the door again
electrically.
MODEL HJ
This operator includes both a floor level disconnect chain (sash
chain) to disconnect the door from the door operator and a
disconnect chain with manual hoist to electrically disable the
operator controls.
Pull the disconnect chain to engage the hoist mechanism.
1
The disconnect chain may be locked in position by slipping
the end through the keyhole of the chain keeper mounted on
the wall.
To disengage, pull the disconnect chain and secure in the
2
disengaged position by slipping the end through the keyhole
bracket mounted on the wall.
3 Operate the door in the desired direction by pulling on one
side or the other of the continuous loop hoist chain.
Release the disconnect chain to operate the door again
4
electrically.
To prevent possible SERIOUS INJURY from a moving chain:
• DISCONNECT electric power to the operator BEFORE manually
operating your door.
• If possible, use emergency disconnect ONLY when door is
CLOSED. Weak or broken springs or unbalanced door could
result in an open door falling rapidly and/or unexpectedly.
• NEVER use emergency disconnect unless doorway is clear of
persons and obstructions.
H and GH
2
J
3
1
HJ
4
3
7
3
1
2
4
2
1