Sears 139.18847 Garage Door Opener User Manual


 
Assembly Step 4
Install the Chain/Cable &
Attach the Sprocket Cover
Cable
Pulley
Cable
Loop
Master
Link Bar
Master Link
Clip-On Spring
Trolley
T-rail
Pin
Pin Notch
Chain
Flat End
of Trolley
Threaded Shaft
Master
Link Cap
Master
Link Cap
Master Link
Clip-On Spring
Install Chain and Cable
In This Direction
The Chamberlain Group, Inc.
Step 4 Install Chain & Cable - Sears Chassis
4/10/92
Sprocket
Cover
Mounting
Plate
Front Tab Slot
Back Tab Slot
Top of Opener
Leave Chain and Cable
Inside Dispensing
Carton to Prevent Kinking.
Dispensing Carton
Keep Chain and Cable
Taut When Dispensing
Opener 
Sprocket
Cable
Pulley
Cable
Loop
Master
Link Bar
Master Link
Clip-On Spring
Trolley
T-rail
Pin
Pin Notch
Chain
Flat End
of Trolley
Threaded Shaft
Master
Link Cap
Master
Link Cap
Master Link
Clip-On Spring
Install Chain and Cable
In This Direction
The Chamberlain Group, Inc.
Step 4 Install Chain & Cable - Sears Chassis
4/10/92
Sprocket
Cover
Mounting
Plate
Front Tab Slot
Back Tab Slot
Top of Opener
Leave Chain and Cable
Inside Dispensing
Carton to Prevent Kinking.
Dispensing Carton
Keep Chain and Cable
Taut When Dispensing
Opener 
Sprocket
10
To attach the sprocket cover:
Insert the back tab in the opener slot. Squeeze the
cover slightly and insert the front tab in the slot on
the mounting plate.
Cable
Pulley
Cable
Loop
Master
Link Bar
Master Link
Clip-On Spring
Trolley
T-rail
Pin
Pin Notch
Chain
Flat End
of Trolley
Threaded Shaft
Master
Link Cap
Master
Link Cap
Master Link
Clip-On Spring
Install Chain and Cable
In This Direction
The Chamberlain Group, Inc.
Step 4 Install Chain & Cable - Sears Chassis
4/10/92
Sprocket
Cover
Mounting
Plate
Front Tab Slot
Back Tab Slot
Top of Opener
Leave Chain and Cable
Inside Dispensing
Carton to Prevent Kinking.
Dispensing Carton
Keep Chain and Cable
Taut When Dispensing
Opener 
Sprocket
• Detach the cable loop from the carton and fasten it
to the trolley with a master link from the hardware
bag. See master link procedure, Figure 1.
• With the trolley against the screwdriver, dispense
the cable around the pulley.
• 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
Pulley
Cable
Loop
Master
Link Bar
Master Link
Clip-On Spring
Trolley
T-rail
Pin
Pin Notch
Chain
Flat End
of Trolley
Threaded Shaft
Master
Link Cap
Master
Link Cap
Master Link
Clip-On Spring
Install Chain and Cable
In This Direction
The Chamberlain Group, Inc.
Step 4 Install Chain & Cable - Sears Chassis
4/10/92
Sprocket
Cover
Mounting
Plate
Front Tab Slot
Back Tab Slot
Top of Opener
Leave Chain and Cable
Inside Dispensing
Carton to Prevent Kinking.
Dispensing Carton
Keep Chain and Cable
Taut When Dispensing
Opener 
Sprocket
Master Link Procedure:
Push pins of master link bar
through cable loop and hole in
front end of trolley. Push cap
over pins and past notches.
Slide clip-on spring over cap
and into notches until both
pins are securely locked.
Figure 1
Figure 3
Serious injury can result if fingers become
entangled in moving opener sprocket. Attach
sprocket cover securely. Never operate opener
while your hand is near the opener sprocket.
WARNING
CAUTION
WARNING
AVERTISSEMENT
ATTENTION
AVERTISSEMENT
WARNING
AVERTISSEMENT