Install The Chain/Cable - Craftsman 139.54985 Owner's Manual

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. Push pins of master link barthrough cable link and trolley
slot.
b. Push master link cap over pins and past pin notches.
c. Slide clip-on spring overcap 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. Checkto make sure the chain is not twisted, then connect it to
the threaded shaft with the remaining master link.
5. Threadthe inner nut and lock washer onto the trolley threaded
shaft.
6. Insert the trolley threaded shaft through the hole in the trolley.
Besure the chain is not twisted. (Figure 3)
7. Loosely thread the outer nut onto the trolley threaded shaft.
8. Removethe screwdriver.
ure 1
To avoid possible SERIOUSINJURYto finger from moving
garage door opener:
• ALWAYSkeephand clear of sprocket while operating opener.
• Securelyattach sprocket cover BEFORE operating.
Leave Chain and Cable
Inside Bag to
Prevent Kinking.
Figure 2
Keep Chain and Cable
Taut When Dispensing
Sprocket
Figure 3
Master Link_ ._
Inner Nut _
OuterLN_ washer
-_ Master Link
Threaded Shaft
HARDWARESHOWN ACTUALSiZE
Trolley Threaded Shaft
Master Link Nut 5/16" Lock Washer 5/16"
10