Manaras Opera Opera-GH, Installation And Instruction Manual

Page: 14 / 48

14
3.8 ADJUSTMENT AND MANUAL OPERATION OF OPERA-GH OPERATOR
The Opera-GH operator is equipped with an automatic emergency chain hoist disconnect mechanism to operate
the door manually, no floor disconnect is required.
In one simple step

Control circuit interrupted.

Hoist engaged.

Manual operations.
are successively completed by pulling the hand chain in the desired direction:
1. Firmly pull on the hand chain in the desired direction. The first foot pulled will engage the hoist
mechanism and open the electrical control circuit.
2.
Continue the traction movement to move the door. If it doesn’t run in the desired direction, repeat actions 1
and 2 by pulling the chain in the other direction (See Figure 16).
3. The automatic hoist engagement system is adjusted in the factory. It may require adjustment in the field.
Adjustment is necessary if no door movement occurs after two feet of pulled hand chain. Turn the adjusting
nut clockwise (see figure 17) by ¼ turn until the hoist engages after pulling one foot of chain. If the nut is too
tight, the manual torque on the chain will be too heavy.
4. Return to the standard electrical operation.
IMPORTANT: To return to electrical operation, pull back 6 inches on the opposite direction of the chain .
WARNING
DO NOT ATTEMPT TO DISENGAGE THE OPERATOR WHILE OPERATOR IS RUNNING. DO NOT
ATTEMPT TO MANUALLY FORCE A MALFUNCTIONING DOOR TO OPEN OR CLOSE. THIS IS AN
EMERGENCY DEVICE AND IS NOT DESIGNED TO OPERATE A DOOR WITH SERIOUS MECHANICAL
PROBLEMS.
Figure 16
Operating chain to open and close door
Figure 17
Manual operation system adjustment
WARNING
ONCE ALL THE ADJUSTMEMTS ARE COMPLETED, THE SOLENOID FRONT SHOULD BE PLACED
BACK AND TIGHTEN THE SCREWS ON EACH SIDE OF THE FRAME
Engagement
Operation
Adjusting
nut