Part No. 4801-5154 Rev 4-08
500 ST Door
Page 16 of 25
9.
Manual Operation of Door
9.1 Operating
Instructions
The 500 ST door can be operated manually in the event of a power outage or if there is a motor malfunction.
To operate the door manually, perform the following instructions.
Warning!
Disconnect All Electrical Power To Motor Before Attempting
To Operate The Door Manually!
Warning!
The Curtain Is Released When Brake Lever Is Disengaged.
Do Not Disengage Brake Until Door Opening Is Clear!
If door is OPEN (door curtain raised) perform the following steps:
1.
Locate brake lever at bottom of motor. (See diagram below).
2. Carefully release brake by flipping lever down. CAUTION: Curtain will drop when brake is released.
If door is CLOSED (door curtain lowered) perform the following steps:
1. Locate brake lever at bottom of motor.
2. Carefully release brake by flipping lever
down.
3. Motor shaft is accessible from bottom
of motor. Use provided Crank Handle
to rotate motor shaft.
4. Carefully turn motor shaft
counterclockwise to raise door curtain.
NOTE: The drive (as viewed from the
'motor end' of door) is synchronized
with clockwise or counterclockwise
rotation of the motor shaft
5. When door curtain has been raised to
desired height, flip brake lever up to
engage brake.
!
Brake lever
disengaged.
BRAKE OFF
Brake lever
engaged.
BRAKE ON
Crank Handle
attaches here.
!
Summary of Contents for 500 ST
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Page 25: ...NOTES ...