Drive Gear and Worm Gear Kit
Model 41A2817
OVERVIEW
This instruction sheet is for AC garage door openers. It is highly
recommended that you grease and replace both the drive gear and worm
gear. Failure to grease and replace both gears will result in premature failure
of the gears. The images are for reference and your product may look
different.
TOOLS NEEDED:
• 1/8" Allen wrench
• 1/4" Nut driver or socket
• 3/8" Nut driver or socket
• Hammer
1
1a
Chain trolley
Chariot à chaîne
Trolley de cadena
1b
TYPE 1
2
TIPO 1
TYPE 2
TIPO 1
• Flat head screw driver
• 5/32" Punch
• 5/16" Nut driver or socket
w/extension
1a
Belt trolley
Chariot à courroie
Trolley de correa
1b
Limit switch assembly
Interrupteur de fin de course
2a
Conjunto de límite de carrera
OR
OU
O
Travel module
2b
Module de déplacement
Módulo de desplazamiento
To prevent possible SERIOUS INJURY or DEATH from electrocution,
disconnect power to opener BEFORE proceeding.
The garage door MUST be in the fully closed position during installation.
Installation
✔
CHECK OFF STEPS AS THEY ARE COMPLETED
1. Preparation
_ Disconnect power to opener.
_ Disengage the outer trolley by pulling the emergency release rope.
_ Manually pull the garage door to a closed position.
_ Remove sprocket cover (1b).
_ Relax the chain/belt tension by loosening the outer nut (1a) on the
trolley.
_ Remove chain/belt from sprocket. Manually slide the inner trolley to
closed position until it engages the outer trolley.
_ Place loose chain/belt on the end of the rail nearest sprocket. Tape
the chain/belt to the rail to prevent the chain/belt from falling to the
floor.
_ Remove cover, light lenses and both end panels.
2. Identify your opener type
Some instructions will vary depending on your garage door opener.
_ Identify the type of garage door opener you have.
TYPE 1 - Garage door opener with a limit switch assembly (2a).
TYPE 2 - Garage door opener with a travel module (2b).
_ Proceed with disassembly instructions according to your garage
door opener type.
1