Install Chain/Cable; Attach Sprocket Cover - Chamberlain Series 651-2MM-1/2HP Owner's Manual

Assembly Step 4
Install the Chain/Cable
& Attach the Sprocket Cover
Dispensing Carton
Keep Chain and Cable
Taut When Dispensing
• Detach the cable loop from the carton and fasten it
to the trolley with a master link from the hardware
bag. See master link procedure, Figure 1.
• With the trolley against the screwdriver, dispense
the cable around the pulley.
• Proceed back around the opener sprocket,
Figure 2. Be sure sprocket teeth engage the chain.
Keep Chain and Cable
Continue forward to the trolley threaded shaft,
Taut When Dispensing
Figure 3.
• Use the second master link to connect the
chain to the flat end of the shaft. Check to
make sure the chain is not twisted.
• Remove the screwdriver.
Install Chain & Cable
In This Direction
stall Chain & Cable
Chamberlain '92
8/22/90 - 3/6/92
Install Chain & Cable
In This Direction
Sprocket
Cover
Front Tab Slot
Mounting
Leave Chain and Cable
Inside Dispensing
Carton to Prevent Kinking
Cable
Loop
Cable
Pulley
Back Tab Slot
Sprocket
Top of Opener
Cover
Back Tab Slot
Top of Opener
Plate
Serious injury can result if fingers become
entangled in moving opener sprocket. Attach
sprocket cover securely. Never operate opener
while your hand is near the opener sprocket.
Figure 2
Master Link
Clip-On Spring
Threaded Shaft
Master
Link Cap
Master Link
Clip-On Spring
Master
Link Cap
Master
Link Bar
Cable
Loop
Master
Cable
Link Bar
Pulley
To attach the sprocket cover:
• Insert the back tab in the opener slot. Squeeze the
cover slightly and insert the front tab in the slot on
the mounting plate.
10
WARNING
Master Lin
Clip-On Spr
Master
Link Cap
Flat end
of Trolley
Figure 3
Master Link
Clip-On Spring
Master
Link Cap
Flat end
of Trolley
Threaded Shaft
Trolley
Trolley
Figure 1
Master Link Procedure:
Push pins of master link bar through
cable loop and hole in front end of
trolley. Push cap over pins and into
notches. Slide clip-on spring over
cap and into notches until both pins
are securely locked.
Opener
Sprocket
Chain
T-rail
Pin Notch
Pin