ASSEMBLY STEP 4
Install the Belt and Attach the Belt Cap Retainer
1. | Pull the belt around the idler pulley and toward the | |
| trolley. The ribbed side must contact the pulley. | |
2. | Hook the trolley connector into the retaining slot on | |
| the trolley as shown. | |
3. | With the trolley against the screwdriver, dispense the | |
| remainder of the belt along the rail length toward the | |
| motor unit and around the sprocket. The sprocket | |
| teeth must engage the belt. | |
4. | Check to make sure the belt is not twisted. Connect | |
| the trolley threaded shaft with the master link, | |
| as illustrated: | |
| • | Push pins of master link bar through holes in end of |
|
| belt and trolley threaded shaft. |
| • | Push master link cap over pins and past pin |
To avoid possible SERIOUS INJURY to fingers from moving garage door opener:
•ALWAYS keep hand clear of sprocket while operating opener.
•Securely attach sprocket cover BEFORE operating.
HARDWARE SHOWN ACTUAL SIZE
Hex Screw 8x3/8"
| notches. |
| • Slide |
| until both pins are securely locked in place. |
5. | Insert the trolley threaded shaft through the hole in |
| the trolley. Be sure the belt is not twisted. |
6. | Hold the belt at the trolley shaft as you thread the |
| spring nut by hand onto the shaft until finger tight |
| against the trolley. Do not use any tools. |
7. | Remove the screwdriver. |
8. | Position the belt cap retainer over the motor unit |
| sprocket as shown and fasten to the mounting plate |
| with 8x3/8" hex screws provided. |
Idler Pulley
Spring Nut
Master Link
Master Link Cap
Retaining
Slot
Trolley
Connector
Spring/Trolley Nut
Pin
Notch
TrolleyMaster
ThreadedLink Bar
Shaft
Hole
| Hex Screws |
Belt Cap | #8x3/8" |
Retainer | Motor Unit |
| |
| Sprocket |
| Mounting |
| Plate |
10