Skip to content
Residential Garage Door Opener Training

841LM Automatic Garage Door Lock

No access code required

841LM Automatic Garage Door Lock 

Duration: 20 minutes

Class Times: N/A

Location: Web

Credits: N/A

Certificates: N/A

Costs: N/A

Course Description

This is a self-paced module. Students participating in this module will learn how to install the 8500 residential jackshaft. 

Course Content

  • Installation Tutorial 
  • Installation Quick Tips Videos


Benefits of Attending

After attending this course, you will be able to:

  • Understand the installation process for the 841LM 
  • Understand and methods to speed up installation 
  • Prevent damage to lock during the installation


Course Format

This is a self-paced course. Click on the module and then click on the section. For this self-paced course there are  two modules. Each module will contain the course content.  To complete the course view all course content. 

Here is the course outline:

1. Introduction

2. Installation

3. Pro Tips

Back to top