ASSEMBLY STEP 4
For Sectional and One-Piece Doors Only
Install the Chain/Cable
and Attach the Sprocket Cover
INSTALLING THE
CHAIN/CABLE
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
Position the sprocket cover over the motor unit
sprocket so the three holes in cover align with the
three holes in mounting plate. Attach with #8x3/8"
hex screws provided (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
ATTENTION
AVERTISSEMENT
AVERTISSEMENT
AVERTISSEMENT
Motor Unit
Sprocket
Install Chain
In This Direction
Figure 2
Mounting
Plate
Sprocket
Hex Screws
#8x3/8"
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
Figure 1
Leave Chain
Inside Carton to
Prevent Kinking.
Keep Chain
Taut When Dispensing
Figure 3