B&D Diamond Series Instructions For The Use - page 5
4
ATTACH SPROCKET COVER
Place sprocket cover (1) on top of the opener (2), secure with
screws (3). Install the trolley stop bolt (4), use the lock nut (5)
provided.
ASSEMBLE HEADER SLEEVE
Thread spring nut on carriage bolt until finger tight. Insert a
screwdriver tip (1) into one of the slots of the nut ring (2) and
brace it firmly against the header sleeve. Place an open end
wrench (3) on the square end of the spring nut (4), slightly rotate
nut about 1/4 turn clockwise until nut ring (2) is released against
header sleeve (5). This sets spring to optimum chain tension.
Chain may slip off sprocket if chain/belt is too loose. If chain does
slip re-tighten
spring nut by
turning nut
clockwise 1/2
turn. Do NOT
overtighten
chain/belt.
2
1
3
2
1
3
4
5
1
2
3
4
5
INSTALLATION SECTION
Wear protective goggles when working overhead to protect
your eyes from injury.
Disengage all existing garage door locks to avoid damage to
the garage door.
To avoid serious personal injury from entanglement, remove
all ropes connected to the garage door before installing the
operator.
It is recommended that the operator be installed
2.1m (7 feet) or more above the floor where space permits.
POSITION THE HEADER BRACKET
The header bracket must be rigidly fastened to a structural
support of the garage. Reinforce the wall or ceiling with a
40mm board if necessary. Failure to comply may result in
improper operation of safety reverse system.
You can attach the header bracket either to the header wall (1) or
to the ceiling
(3). Follow the instructions which will work best for
your particular requirements.
With the door closed, mark the vertical centreline
(2) of the
garage door. Extend line onto header wall above the door.
Open door to highest point of travel. Draw an intersecting
horizontal line on header wall 40mm above high point to provide
travel clearance for top edge of door.
1
2
3
114A2991
114mm
114mm
1. Clean and remove grease
from rail in areas where
pads will be installed.
CHAIN NOISE REDUCTION PADS (OPTIONAL)
2. With chain tensioned, lift
up the chain and place
noise reduction pads under
the chain in orientation
shown.
3. Install with adhesive side
down allowing pad to stick
to rail.