11
INSTALLATION STEP 4
Position the Opener
You will need a 50 mm piece of timber or similar
spacer to gauge the distance between door and rail.
1. Raise the opener onto the support.
2. Open the door completely and place a 50 mm
spacer between the door and the rail
(as shown).
3. If the top section or panel hits the trolley when
you raise the door, pull down on the trolley arm
to disengage the opener. Leave the trolley in this
position until opener is fastened in place.
NOTE: Timber spacers should be left in place until
completion of Installation Step 5.
To prevent scratching or marking the garage door, rest garage
door opener rail on piece of wood placed on top section of door.
Rail
Door
50 mm spacer should
be used to determine
the correct mounting
position
Header
Bracket
50 mm (2”)
above the highest
point of travel
A
Содержание Merlin Whisper Drive MT3850EVO
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