Chamberlain 248730 Garage Door Opener User Manual


 
7
Attach Chain Spreader
ALL HARDWARE SHOWN ACTUAL SIZE
To avoid SERIOUS damage to opener, ONLY use
bolts/fasteners mounted in top of motor unit.
Attach Cable to Front
of Trolley
Run Cable Through
Cut-Out Window
Install Idler Pulley
2
3 4
5
6
7
Remove Fasteners from
Top of Motor Unit
Attach Rail to Motor Unit
A3
A2
A2
A2
A12
B5
B4
B4
B2
B7
Hex Screws
8-32 x 7/16"
Chain
and Cable
Chain and Cable
Master Link
Clip-On Spring
Master
Link Bar
Cable
Loop
Chain and Cable
Chain
Spreader
Idler
Bolt
Washer
Lock
Washer
Idler
Pulley
Pulley
Cable Loop
Cable Loop
Bolt
Rail
Nut
Nut
Do NOT remove
Chain/Cable
from box
Bolt Bolt
Nut
Idler Bolt
B5
B7
Lock Washer
B2
Master Link
B4
Do NOT remove
Chain/Cable
from box