Installing The Chain/Cable; Attaching The Sprocket Cover - Sears CRAFTSMAN 139.53648D Manual Del Propietário

ASSEMBLY STEP 4
Install the Chain/Cable
and Attach the Sprocket Cover
INSTALLING THE CHAIN/CABLE
1. Pull the cable loop from the
carton and fasten it to the
trolley with a master link from
the hardware bag (Figure 1). ""X
• Push pins of master link bar j
through cable loop and hole Keep Chain andCable
in front end of trolley.
Taut When
Dispensing
• 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.
2. With the trolley against the screwdriver, dispense
the cable around the pulley.
3. Continue along the rail and around the motor unit
sprocket (Figure 2). The sprocket teeth must
engage the chain. Continue forward to the trolley
threaded shaft.
4. Use the second master link to connect the chain to
the flat end of the shaft (Figure 1). Check to make
sure the chain is not twisted.
5. Remove the screwdriver.
Leave Chain &
Cable Inside
Dispensing
Carton to
Prevent Kinking
ATTACHING THE SPROCKET COVER
Insert the back tab in the slot on the back of the
mounting plate. Squeeze the cover slightly and insert
the front tab (Figure 3).
To avoid possible SERIOUSINJURYto fingers from
moving garage door opener:
• ALWAYSkeep hand clear of sprocket while operating
opener.
• Securely attach sprocket cover BEFORE operating.
Figure 1
Master Link
Clip-On Sp[ing
Master_
Link Cap I
Master Link Flat end
Clip-On Spring of Trolley
\ , ,
Master _-._ Threaded Shaft
Link Cap _h-
Cable
Loop
Pulley
INSTALL CHAIN & CABLE
IN THIS DIRECTION
_'- Trolley
_'_ Master
Link Bar
Rail
. Pin Notch
Pin
Figure 2
Motor Unit
Sprocket
Figure 3 Sprocket
Cover
Front Tab Slot
Mounting
Plate
Back Tab Slot
10