ASSEMBLY STEP 4
INSTALL THE CHAIN/CABLE
To avoid possible SERIOUS INJURY to finger from moving
garage door opener:
• ALWAYS keep hand clear of sprocket while operating
opener.
• Securely attach sprocket cover BEFORE operating.
1. Pull the cable around the idler pulley and toward the trolley.
2. Connect the cable to the retaining slot on the trolley, as
shown. (Figure 1)
a. From below, push pins of master link bar up through
cable link and trolley slot.
b. Push master link cap over pins and past pin notches.
c. Slide clip-on spring over cap and onto pin notches
until both pins are securely locked in place.
3. With the trolley against the screwdriver, dispense the
remainder of the cable/chain along the rail toward the motor
unit around the sprocket and continuing to the trolley
assembly. The sprocket teeth must engage the chain.
(Figure 2)
4. Check to make sure the chain is not twisted, then connect it
to the threaded shaft with the remaining master link.
5. Thread the inner nut and lock washer onto the trolley
threaded shaft.
6. Insert the trolley threaded shaft through the hole in the
trolley.
Be sure the chain is not twisted. (Figure 3)
7. Loosely thread the outer nut onto the trolley threaded shaft.
8. Remove the screwdriver.
Sprocket
Leave Chain and Cable
Inside Bag to
Prevent Kinking.
Master Link
Nut 5/16"-18
Trolley Threaded Shaft
Lock Washer 5/16"
HARDWARE SHOWN ACTUAL SIZE
Figure 2
Figure 1
Keep Chain and Cable
Taut When Dispensing
Master Link
Threaded Shaft
Outer Nut
Master Link
Inner Nut
Lock Washer
Figure 3
NOTE: Your product may look different than the illustrations.
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