Instructions / Assembly

9
Assembly
STEP 4 Install the chain
To avoid possible SERIOUS INJURY to finger frommoving garage door opener:
l ALWAYS keep hand clear of sprocketwhile operating opener.
l Securelyattach sprocket cover BEFORE operating.
1. Pull the cable around the idler pulley and toward the trolley.
2. Connect the cable to the retaining sloton the trolley, as shown. (Figure 1)
a. Push pinsofmaster link bar through cable link and trolley slot.
b. Push master linkcap over pins and pastpin notches.
c. Slide the closed end of the clip-on spring over one ofthe pins. Push the open end of
the clip-on spring onto the other pin.
3. With the trolley against the screwdriver, dispense the remainder of the cable/chain along the
rail toward the motor unitaround the sprocket and continuing to the trolley assembly.The
sprocket teeth mustengage the chain. (Figure 2)
4. Checkto make sure the chain is not twisted, then connectitto the threaded shaftwith the
remaining master link.
5. Thread the inner nut and lock washer onto the trolleythreaded shaft.
6. Insertthe trolley threaded shaft through the hole in the trolley.Be sure the chain is not twisted.
(Figure 3)
7. Looselythread the outer nutonto the trolley threaded shaft.
8. Remove the screwdriver.
Sprocket
Figure 1
Figure 2
HARDWARE
Master
Link
Threaded Shaft
Threaded
Shaft
Outer Nut
Inner Nut
Lock Washer
Master Link
Master
Link
Figure 3
a.
b.
c.