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9.4 MANUAL OPERATION OF MGT OPERATOR
The MGT operator is equipped with trolley release disconnect mechanism to operate the door manually, if
necessary. To manually operate the door:
1. Pull the disconnect chain downwards and disconnect trolley arm from carriage (Figure 27)
WARNING
DOOR ARM IS RELEASED FROM TROLLEY CARRIAGE WHEN DISCONNECT CHAIN IS PULLED. TO AVOID
BEING STRUCK BY DOOR ARM, DO NOT STAND DIRECTLY UNDER DOOR ARM WHEN PULLING CHAIN.
2. Operate the door manually (by hand).
3. To return to electrical operation merely re-attach trolley arm to carriage by pulling on trolley disconnect chain
while re-inserting arm onto carriage (Figure 27). Do not attempt do disengage the door while the operator is
running or do not attempt do manually force a malfunctioning door to open or close.
Fi
ure 2
Disconnecting arm from carriage
DANGER
WHILE PERFORMING THE TESTS LISTED BELOW, IT’S VERY IMPORTANT TO HAVE A POWER SHUT-
OFF DEVICE OR SOMEONE NEAR BY TO TURN THE POWER OFF WHEN NEEDED
9.5 OPERATOR START-UP AND TESTING GUIDE
This guide is a procedure you can follow to test every feature of your door operator.
If a 3 button push-button station is wired to the operator, disconnect it and then place a normally-close contact
between terminals 2 and 3 to simulate a "Stop" push-button (use a spare limit switch or any such device).
Interrupting the power between these terminals will stop the operator.
Using a small wire jumper, momentarily jump (short-circuit) the following terminals:
A. Momentarily jump terminals 3 and 4.
The door will open instantly. Allow it open completely.
B. Momentarily jump terminals 3 and 5.
The door will close instantly. Allow it close completely.
C. Momentarily jump terminals 7 and 8.
The door will open instantly. Allow it to open completely.
D. Momentarily jump terminals 7 and 8.
The door will close instantly. While closing, go to step E.
E. Momentarily jump terminals 7 and 8 again.
The door will reverse to open. Allow it to open completely.
F. Momentarily jump terminals 7 and 8.
The door will close. While closing, go to step G.
G. Momentarily jump terminals 3 and 6.
The door will reverse to open. Allow it to open completely.
H. Momentarily jump terminals 7 and 8 again.
The door will close. Allow it to close completely.
I. Momentarily jump terminals 3 and 6.
The door should remain still.
This procedure can be repeated using the radio-control terminal strip located on the outside of the control box by
using terminals "24VAC" and "CONTACT" instead of terminals 7 and 8.
1.Pull the disconnect
chain
2. Disconnect trolley
arm from carriage
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