Install The Chain/Cable - Craftsman 139.53989 Manual Del Propietário

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):
• From below, push pins of master link bar up
through cable link and trolley slot.
• 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.
3. With the trolley against the pliers, dispense the
remainder of the cable/chain along the rail toward
the motor unit into the slot on the chain spreader,
around the sprocket onto the chain spreader 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 (Figure 3).
6. Insert the trolley threaded shaft through the hole in
the trolley. Be sure the chain is not twisted
(Figure 4).
7. Loosely thread the outer nut onto the trolley
threaded shaft.
8. Remove the locking pliers.
To avoid possible SERIOUSINJURYto fingers from
moving garage door opener:
• ALWAYSkeep hand clear of sprocket while operating
opener.
• Securely attach sprocket cover BEFORE operating.
Dispensing Carton
Ch;':o n gCabte
to Prevent Kinking
Keep Chain and Cable
Taut When Dispensing
Master Link : :
Clip-On Spring Master
T_ink Cap
Y
i
Pin
/Notch
Link Bar
Figure 2
Lock Nut
"U" Bracket
Chain
Spreader
//
Motor Unit
Figure 3
Lock
Washer
5/16"
Trolley
Threaded
Shaft
Inner Nut
5/16"
Figure 4
Trolley
Threaded
Shaft
Round
Hole
10