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8
Cable
Chain
Motor Unit
Sprocket
A2
Chain and
Cable in
Dispensing
Carton
Leave chain/cable inside
carton to prevent kinking
B4
Master Link
Clip-On Spring
B1
Trolley
Threaded
Shaft
B4
Master
Link Bar
Attach Chain To Trolley
Threaded Shaft
B1
Trolley
Threaded
Shaft
C6
Lock Washer
C5
Outer Nut
Insert Trolley Threaded
Shaft into Round Hole in
Trolley
B1
Trolley
Threaded
Shaft
C4
Inner Nut
C5
Lock
Washer
Attach Nut and Lock
Washer to Trolley
Threaded Shaft
Tighten the Chain
Base of Rail
Mid Length of Rail
A2 Chain
1/4" (6 mm)
Desired Chain Tension
B4 Master Link C4 Nut C5 Lock Washer B1 Threaded Trolley Shaft
ALL HARDWARE SHOWN ACTUAL SIZE
To avoid possible SERIOUS INJURY to fingers:
• Securely attach chain spreader.
• NEVER connect garage door opener to power source until
instructed to do so.
WARNING
CAUTION
WARNING
WARNING
Route Chain/Cable Around Rail Assembly
and Motor Unit Sprocket
Assembly of your opener is now complete.
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