Install The Chain/Cable And Attach The Sprocket Cover; Installing The Chain/Cable; Attaching The Sprocket Cover - Craftsman 139.536481DM 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).
• Push pins of master link
bar through cable loop and
hole in front end of trolley.
• 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 fl at end
of the shaft (Figure 1). Check to make sure the chain is not
twisted.
5. Remove the screwdriver.

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).
Figure 3
Front Tab Slot
Leave Chain &
Cable Inside
Dispensing
Carton to
Prevent Kinking
Keep Chain and Cable
Taut When Dispensing
Sprocket
Cover
Back Tab Slot
Mounting
Plate
To avoid possible SERIOUS INJURY to fi ngers from moving
garage door opener:
• ALWAYS keep hand clear of sprocket while operating opener.
• Securely attach sprocket cover BEFORE operating.
Figure 1
Master Link
Clip-On Spring
Master
Link Cap
Cable
Loop
Cable
Pulley
Figure 2
10
Master Link
Clip-On Spring
Master
Link Cap
Flat end
of Trolley
Threaded Shaft
Chain
Rail
Pin Notch
Pin
Trolley
Master
Link Bar
Motor Unit
Sprocket