Engaging And Disengaging The Motor - Centurion SD04 Installation Manual

6.3. Engaging and disengaging the motor

• The unique engage / disengage mechanism provides positive garage door locking, even
during power outages;
Functionality
• TO DISENGAGE - pull down on the release handle until you hear a 'click'
• TO ENGAGE - Pull the release handle back towards the control head until you hear a
'click', and move the carriage until it engages with the chain bullet (Figure 76)
• Never attempt to open or close the garage door by pulling on the
release handle. Doing so may result in SERIOUS PERSONAL INJURY
and / or PROPERTY DAMAGE
• Always disengage the SDO4 with the garage door in the fully closed
position
• If attempting to disengage the SDO4 from any position other than
with the garage door fully closed, ensure that there are no persons
and / or property near or directly under the path of the door
Engage / Disengage
Release
handle
6.4. Positioning the opening and closing end-stops
The drive rail-mounted end-stops provide a one-to-one ratio between end stop
movement and garage door movement, thereby ensuring 100% accuracy and ease
of adjustment. Fully open and fully closed positions of the garage door can be easily
adjusted by moving the ends-stops to the desired location in order to increase or
decrease garage door travel.
6.4.1. Positioning the closing end-stop
• Ensure that the motor is disengaged
• Close the garage door fully
• Locate the closing end-stop within the drive rail - nearest to the front wall of the
garage
• Position the end-stop 10mm away from the carriage, then tighten the two lock screws
Chain Bullet
Carriage
page 40
FIGURE 76
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