![](/images/backgrounds/52336/52336-8010x1.png)
ASSEMBLY STEP 4
Install the Chain/Cable
and Attach the Sprocket Cover
INSTALLING THE CHAIN/CABLE WARNING
To avoid possible SERIOUS INJURY to fingers from moving garage door opener:
• ALWAYS keep hand clear of sprocket while operating |
opener. |
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.
Leave Chain &
Cable Inside
Dispensing
Carton to
Prevent Kinking
Keep Chain and Cable
Taut When Dispensing
• Securely attach sprocket cover BEFORE operating. |
Figure 1 | Master Link | |
| Master | |
Master Link | Link Cap | |
Flat end | ||
of Trolley | ||
| ||
Master | Threaded Shaft | |
| ||
Link Cap | Chain |
•Slide
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.
ATTACHING THE SPROCKET COVERInsert 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 | Sprocket |
| Cover |
Rail |
Cable |
Loop |
Pin Notch |
Pin |
Trolley |
Master
CableLink Bar
Pulley
INSTALL CHAIN & CABLE
IN THIS DIRECTION
Motor Unit
Sprocket
Figure 2
Front Tab Slot
Back Tab Slot
Mounting
Plate
10