Cable
Pulley
Cable
Loop
Master
Link Bar
Master Link
Clip-On Spring
Pin
Pin
Notch
Chain
Flat end
of Trolley
Threaded
Shaft
Master Link Cap
Master
Link Cap
Master Link
Clip-On Spring
INSTALL CHAIN & CABLE
IN THIS DIRECTION
ASSEMBLY STEP 4
For Sectional and One-Piece Doors
Only Install the Chain/Cable and
Attach the Sprocket Cover
1. Pull the cable loop from
the carton and fasten it
to the trolley with a
master link from the
hardware bag
(Figure 1).
• Push pins of master
link bar through cable
loop and hole in front end of trolley.
• Push master link cap over pins and past pin
notches.
• Slide clip-on spring over cap and onto pin
notches until both pins are securely locked in
place.
2. With the trolley against the screwdriver, dispense
the cable around the pulley.
3. Continue along the rail and around the motor unit
sprocket (Figure 2). The sprocket teeth must
engage the chain. Continue forward to the trolley
threaded shaft.
4. Use the second master link to connect the chain to
the flat end of the shaft (Figure 1).
Check to
make sure the chain is not twisted.
5. Remove the screwdriver.
ATTACHING THE SPROCKET COVER
Insert the back tab in the slot on the back of the
mounting plate. Squeeze the cover slightly and insert
the front tab (Figure 3).
13
To avoid possible SERIOUS INJURY to fingers from
moving garage door opener:
• ALWAYS keep hand clear of sprocket while operating
opener.
• Securely attach sprocket cover BEFORE operating.
WARNING
CAUTION
WARNING
WARNING
Motor Unit
Sprocket
Figure 2
Figure 1
Leave Chain
& Cable
Inside Carton to
Prevent Kinking
Keep Chain
Taut When Dispensing
Sprocket
Cover
Mounting
Plate
Front Tab Slot
Back Tab Slot
Top of Motor Unit
Figure 3