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ASSEMBLY STEP 4
INSTALL THE CHAIN/CABLE
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.
Figure 1
HARDWARE SHOWN ACTUAL SIZE
Trolley Threaded Shaft
To avoid possible SERIOUS INJURY to finger from moving garage door opener:
ALWAYS keep hand clear of sprocket while operating opener.
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Securely attach sprocket cover BEFORE operating.
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Figure 2
Figure 3
Master Link
11
Leave Chain and Cable
Inside Bag to
Prevent Kinking.
Sprocket
Master Link
Inner Nut
Lock Washer
Outer Nut
Master Link
Threaded Shaft
Nut 5/16"-18
Lock Washer 5/16"
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