Install The Belt And Attach The Belt Cap Retainer - Chamberlain Whisper Drive Security+ Manual Del Propietário

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. 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.
6. Hold the belt at the trolley shaft as you thread the
spring nut by hand onto the shaft until fi nger 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 fi ngers from
moving garage door opener:
• ALWAYS keep hand clear of sprocket while
• Securely attach sprocket cover BEFORE operating.
Master Link Cap
Trolley
Connector
Idler Pulley
Spring Nut
10
operating opener.
HARDWARE SHOWN ACTUAL SIZE
Hex Screw 8x3/8"
Master Link
Clip-On Spring
Trolley
Threaded
Shaft
Hole
Retaining #8x3/8" Hex Screws
Slot
Spring/Trolley Nut
Pin
Notch
Master
Link Bar
Belt Cap
Retainer
Motor Unit
Belt Pulley
Mounting
Plate