Craftsman 139.53675SRT Garage Door Opener User Manual


 
Assembly Step 4
Install the Chain/Cable &
Attach the Sprocket Cover
DispensingC,arlc,r_
Leave Chain and Cable
{nside Dispensing
Carton to Prevec_t K3nking,
Kee_ Cha;n and Cable
Taul When Dispensing
Detach the cable loop from the carton and fasten it
to the trolley with a master tink from the hardware
bag. See master link procedure, Figure 1.
With the trolley against the screwdriver, dispense
the cable around the putley.
o Proceed back around the opener sprocket,
Figure 2. Be sure sprocket teeth engage the chain.
Continue forward to the trolley threaded shaft,
Figure 3.
Use the second master link to connect the
chain to the flat end of the shaft. Check
to make sure the chain is not
twisted.
Remove the screwdriver.
Cable
Loop
I Serious Injury can result If fingers become I
entangled tn moving opener sprocket. Attach
1
sprocket cover securely, Never operate opener
while your hand is near the opener sprocket.
Opener
Figure 2 sp_t
Master
MasterU_
Ctip-On Spring ,
Mas_er
Unk Cap
Ra[ End
of Trolley
Threaded Shaft
Figure 3
Chin
Sprocket
Cover
Slot
Topo!Opener
Master Link Procedure:
Push pins of master link bar
through cable loop and hole tn
front end of tce[ley. Push cap
over pins and past notches,.
Slide cJip-on spring over cap
and into notches until both
pinsare securely" locked.
To attach the sprocket cover:
_nsert the back tab in the opener slot. Squeeze the
cover slightly and insert the front tab in the slot on
the mounting plate.
10