Chamberlain LiftMaster Professional 1000 Manuel D'instructions page 21

BEFORE YOU BEGIN:
1. Look at the wall or ceiling above the garage door. The header bracket
must be securely fastened to structural supports.
2. Do you have a finished ceiling in your garage? If so, a support bracket
and additional fastening hardware (not supplied) may be required.
3. Depending on your door's construction, you might need a special door
arm. See your dealer.
4. Do you have an access door in addition to the garage door? If not,
Model 1702E Outside Quick Release Accessory is required. This
accessory allows manual operation of the garage door from outside in
case of power failure.
COMPLETED INSTALLATION
As you proceed with the assembly, installation and adjustment procedures
in this manual, you may find it helpful to refer back to this illustration of a
completed installation. (C-rail installation shown.)
(1) Chain Tension Bracket
(2) Chain Idler Bracket
(3) Trolley
(4) Rail
(5) Hanging Bracket
(6) Power Cord
(7) Opener
ASSEMBLY SECTION
FASTEN THE RAIL TO THE OPENER
NOTE: Trolley location is important for programming travel limits
(Step 17). Do not change location of trolley!
If you have a belt drive, remove c-clip (5) holding chain sprocket (6) in
place. Replace chain sprocket with belt sprocket (7), then install new
c-clip. Continue as follows for chain or belt.
Place packing material under the opener to protect the opener cover. For
convenience, place a support under the door end of rail.
A. C-rail: Remove the four washered screws (1) from the top of the
opener.
Place the two rail brackets (2) horizontally across the top of the
opener, aligning the screw holes with those on the opener. Replace the
screws loosely through the brackets into the opener.
Slide the rail under the brackets until the round stop (3) on top of the
rail rests against the nearest bracket. Tighten the four screws securely.
CAUTION: Use only these screws! Use of any other screws will
cause serious damage to the door opener.
B. T-rail: Remove two of the 4 washered screws (1) from the top of the
opener. Align rail and styrofoam (4) over opener sprocket.
Thread one of the washered screws part way in. CAUTION: Use only
these screws! Any other screws will cause serious damage to the
door opener.
Cut tape from rail, chain and styrofoam. REMOVE STYROFOAM.
ATTACH THE SPROCKET COVER
For belt drive: Insert adapter (3) into sprocket cover. Continue as follows.
A. C-rail: Slip the chain or belt around the sprocket or pulley (1). The
teeth must engage the chain or belt.
B. T-rail: Slip the chain or belt around the sprocket or pulley (1). The
teeth must engage the chain or belt. Insert the second washered
screw.
CAUTION: Use only the screw previously removed from the
opener! Tighten both screws securely through the rail into the opener
as shown.
Position sprocket cover (2) over sprocket or pulley. Align holes in cover
and mounting plate. Attach with washered screws (4).
114A2445C-GB
4
(8) Light Lens
(9) Manual Release Rope & Handle
(10) Curved Door Arm
(11) Straight Door Arm
(12) Door Bracket
(13) Header Bracket
(14) Trolley Release Arm
5 7
-
5
6
7
SET THE TENSION
A. C-rail: Remove the packing material from the trolley and leave the
trolley in place on the rail. At the tension bracket (1), tighten the nut (2)
with a wrench against the spring (3). As the nut travels, the spring will
pull the tension bracket and the idler bracket (4) together. Tighten until
the compressed spring dimension is 20mm. Do not overtighten.
Overtightening will cause damage to motor and limit
mechanisms.
B. T-rail: By hand, turn the spring trolley nut (1) on the threaded shaft (2)
until finger tight against trolley. Insert a screwdriver tip into one of the
slots of the nut ring (3), and brace it firmly against the trolley. Place an
open end wrench at the square end of the nut and slightly rotate the
assembly clockwise until the nut ring is released against the trolley.
This provides tension for the best operation of the opener.
It is normal for the chain or belt to bow when the door is closed.
ASSEMBLY OF YOUR OPENER IS NOW COMPLETE.
INSTALLATION SECTION
Before installation, disable locks and remove ropes, chains or other
equipment not needed for powered operation.
Installation of this product shall comply with ZH1/494, VDE 0700 Part 238,
and VDE 0700 Part 1.
It is recommended that the opener be installed 2,1m 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 centerline (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 50mm above high point to provide travel clearance for top
edge of door.
INSTALL THE HEADER BRACKET
Note: Rail must be mounted as close as possible to the highest point
of the door (5cm).
A. Wall Mount: Center the bracket (2) on the vertical guideline (1) with
the bottom edge of the bracket on the horizontal line (6) (with the arrow
pointing toward the ceiling).
Mark either set of bracket holes (4 or 5). Do not use the holes
designated for ceiling mount. Drill 4,5mm pilot holes and fasten the
bracket with wood screws (3).
B. Ceiling Mount: Extend vertical guideline (1) onto the ceiling. Center
the bracket (2) on the vertical mark no more than 150mm from the wall.
Be sure the arrow is pointing toward the wall.
Mark holes designated for ceiling mount only (4). Drill 4,5mm pilot
holes and fasten the bracket with wood screws (3). For concrete
mount, use concrete anchors provided (7).
8 16
-
8
9