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ASSEMBLY STEP 4
Install the Belt
1. Pull the belt around the idler pulleyand toward the trolley.
Theribbed side must contact thepufley.
2. Hookthe trolley connector into the retaining slot on the trolley
as shown.
3. With the trolley againstthe screwdriver, dispensethe
remainderof the belt along the rail length toward the motor
unit and around the sprocket. The sprocket teeth must engage
the belt.
4. Checkto make sure the belt is not twisted. Connectthe trolley
threadedshaft with the master link, as illustrated:
• Push pins of master link bar through holes in end of belt
and trolley threaded shaft.
• Push master link cap over pins and past pin notches.
• Slide clip-on spring over cap and onto pin notchesuntil both
pins aresecurely locked in place.
5. Insertthe trolley threaded shaft through the hole in the trolley.
Besure the belt is not twisted.
To avoid possible SERIOUSINJURYto fingers from moving
garagedoor opener:
• ALWAYSkeep hand clearof sprocket while operating opener.
• Securely attachsprocket cover BEFOREoperating.
Trolley Connector
Belt Sprocket
Idler
Pulley
Trolley
Connector
Slot
Y
Threaded
Shaft
Master Link
Clip-On Spring
Master
Link Cap
Notch
Trolley Master
Threaded Link Bar
Shaft
[©
Trolley Threaded Shaft
HARDWARESHOWNACTUALSIZE
i
i
Master Link
10