Install Chain/Cable - Craftsman 139.53990 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 loop to the retaining slot on the
trolley, as shown (Figure 1):
• From below, push pins of master link bar up
through cable loop 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.
Figure 2
Lock Nut
"U" Bracket
Chain
Motor Unit
Toavoid possibleSERIOUSINJURYto fingers from
moving garage door opener:
• ALWAYSkeep hand clear of sprocket while operating
opener.
• Securely attach chain spreader BEFORE operating.
Dispensing Carton
Leave Chain and Cable
inside Dispensing
_to Prevent Kinking.
Keep Chain and Cable
Taut When Dispensing
Figure 1
i
I i
i
Master Link
Master
Ciip-On Spring n_ "r_ , _ Link Cap.
Miapt;rn L_;kr i_ Ma_t_rp _
,
Cable , ,
Loop
: : .- ,
Trolley : Pin
ed
Threaded : Notch
Shaft
Master
Round Link Bar
Id{er
Pulley : : Slotted
nJ_,_' Master
Cable
Link Bar
Figure 3
,r Nut
.J Lock 5/16"
Washer
5/16"
Trolley
Threaded
Shaft
lO