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 belt pulley. The belt pulley 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 notches.

•Slide clip-on spring over cap and onto pin notches 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 belt pulley as shown and fasten to the mounting plate with 8x3/8" hex screws provided.

To avoid possible SERIOUS INJURY to fingers from moving garage door opener:

•ALWAYS keep hand clear of belt pulley while operating opener.

•Securely attach belt pulley cover BEFORE operating.

HARDWARE SHOWN ACTUAL SIZE

Hex Screw 8x3/8"

Spring/Trolley Nut

Master Link

Clip-On Spring

Master

Link Cap

Idler Pulley

Spring Nut

Trolley Connector

Pin

Notch

TrolleyMaster

Threaded Link Bar

Shaft

Trolley

Hole

Retaining

Slot

8x3/8" Hex Screws

Belt Cap

Retainer

Motor Unit

Belt Pulley

Mounting

Plate

10