Chamberlain B2212T Installation Manual - English - Page 17

STEP 5 Hang the Garage Door Opener

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Installation STEP 3 Attach the Rail to the Header Bracket 1. Position the opener on the garage floor below the header bracket. Use packing material as a protective base. NOTE: If the door spring is in the way, you will need help. Have someone hold the opener securely on a temporary support to allow the rail to clear the spring. 2. Position the rail bracket against the header bracket. 3. Align the bracket holes and join with a clevis pin as shown. 4. Insert a ring fastener to secure. HARDWARE Clevis Pin 5/16"x1-1/2" Ring Fastener STEP 4 Position the Garage Door Opener To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of door. 1. Remove the packing material and lift the garage door opener onto a ladder. 2. Fully open the door and place a 2x4 (laid flat) under the rail. For one-piece doors without tracks, lay the 2x4 on its side. NOTE: A 2x4 is ideal for setting the distance between the rail and the door. If the ladder is not tall enough you will need help at this point. If the door hits the trolley when it is raised, pull the trolley release arm down to disconnect the inner and outer trolley. Slide the outer trolley toward the garage door opener. The trolley can remain disconnected until instructed. Clevis Pin Ring Fastener Connected Disconnected 2x4 One-piece door without tracks 2x4 All other door types 17

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17
Installation
STEP 3 Attach the Rail to the Header Bracket
1.
Position the opener on the garage floor below the header bracket. Use packing material as a protective
base.
NOTE:
If the door spring is in the way, you will need help. Have someone hold the opener securely on a
temporary support to allow the rail to clear the spring.
2.
Position the rail bracket against the header bracket.
3.
Align the bracket holes and join with a clevis pin as shown.
4.
Insert a ring fastener to secure.
HARDWARE
Clevis Pin
5/16"x1-1/2"
Ring Fastener
Clevis Pin
Ring Fastener
STEP 4 Position the Garage Door Opener
To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of door.
1.
Remove
the
packing
material
and
lift
the
garage
door
opener
onto
a
ladder.
2.
Fully
open
the
door
and
place
a
2x4
(laid
flat)
under
the
rail.
For
one-piece
doors
without
tracks,
lay
the
2x4
on
its
side.
NOTE:
A 2x4 is ideal for setting the distance between the rail and the door. If the ladder is not tall enough you
will need help at this point. If the door hits the trolley when it is raised, pull the trolley release arm down to
disconnect the inner and outer trolley. Slide the outer trolley toward the garage door opener. The trolley can
remain disconnected until instructed.
Connected
Disconnected
One-piece door
without tracks
2x4
2x4
All other
door types