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Chamberlain Liftmaster MT5025 User Manual

Chamberlain Liftmaster MT5025
20 pages
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2 YEAR WARRANTY
Serial #
(located on electrical box cover)
Installation Date
Wiring Type
OWNER'S MANUAL
MODEL MT
MEDIUM DUTY DOOR OPERATOR
NOT FOR RESIDENTIAL USE
LISTED DOOR OPERATOR
41B6
C2 Wiring
FACTORY SET
See page 8 for
other wiring
configurations
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Chamberlain Liftmaster MT5025 Specifications

General IconGeneral
BrandChamberlain
ModelLiftmaster MT5025
CategoryDoor Opening System
LanguageEnglish

Summary

Specifications

Motor Specifications

Details on the motor type, horsepower, speed, voltage, and current ratings.

Electrical Specifications

Information on transformer, control station, and wiring types.

Mechanical Specifications

Covers drive reduction, output shaft speed, door speed, and bearings.

Safety Specifications

Details on safety disconnect, sensing devices, and recommended safety measures.

Weights and Dimensions

Provides hanging weight and key physical dimensions of the operator.

Preparation for Installation

Track Assembly

Instructions for assembling the operator track and installing spacer brackets.

Powerhead Attachment

Steps for positioning the track assembly onto the powerhead frame.

Trolley Carriage and Chain Attachment

Guide for attaching the chain to the trolley carriage and setting chain tension.

Installation Instructions Overview

Mount Header Bracket

Procedure for locating and mounting the header bracket above the door.

Mount Operator Unit

Steps for attaching the operator track to the header bracket and positioning unit.

Installation Instructions Details

Operator Support Mounting

Methods for supporting the operator from the ceiling or structure.

Straight Arm Attachment

Instructions for connecting the door arm to the trolley and door bracket.

Entrapment Protection and Limit Switches

Sensing Edge Installation

Guidance on installing and connecting sensing edges for safety.

Limit Switch Adjustment Procedure

Detailed steps for adjusting open and close limit nuts for proper door travel.

Power Wiring Connections

Power Wiring Requirements

Ensuring correct power supply and making electrical connections safely.

Conduit Access Points

Information on knockouts for routing power and control wiring.

Control Wiring Basics

Determine Wiring Type

Identifying the correct wiring configuration (C2 vs. B2) for operation.

Special Control Wiring

Notes on non-standard wiring or optional accessory connections.

Control Station Placement

Recommendations for mounting the control station for optimal visibility and safety.

Advanced Control Wiring

Radio Control Integration

Connecting and using radio controls with the operator.

Additional Access Control

Connecting other access control devices like loop detectors.

External Interlock Switch

Using an interlock switch to disable operation under certain conditions.

Clutch Adjustment

Procedure for adjusting the clutch for smooth operation and safety.

Emergency Disconnect System

Disconnecting Door from Opener

How to release the door arm from the trolley using the emergency disconnect.

Reconnecting Door to Trolley

Steps to re-engage the door arm with the trolley after manual release.

System Testing Procedure

Verifying the proper operation of controls and safety devices after installation.

Brake Adjustment and Maintenance

Brake Adjustment

Information on the solenoid brake and its adjustment.

Maintenance Schedule

Recommended intervals for checking and servicing components like drive chain and bearings.

Ordering Repair Parts

Contact information and required details for ordering replacement parts.

Replacement Part Kits

Complete Electrical Box Kits

Kits for replacing the entire electrical box assembly.

Electrical Box Sub-Assemblies

Components for electrical box sub-assemblies like limit switches.

Motor Replacement Kits

Kits available for replacing the operator motor.

Shaft Assembly Kits

Kits for clutch shaft and output shaft assemblies.

Hardware, Track, and Drive Chain Kits

Kits containing hardware, track sections, and drive chains.

Brake Replacement Kits

Kits for brake components, specifically for BMT models.

Individual Parts Listing

List of individual parts with part numbers and quantities.

Variable Component Kits

Kits for variable components like transformers and capacitors.

Limit Switch Assembly Kit

Kit containing components for the limit switch assembly.

Limit Shaft Assembly Kit

Kit containing components for the limit shaft assembly.

General Hardware Kit

Comprehensive hardware kit for installation and assembly.

Door Track and Drive Chain

Parts related to the door track and drive chain.

Electrical Box Replacement Kits

Specific kits for electrical box replacements.

Replacement Parts Lists

Brake Assembly Kits

Kits for brake assemblies, detailing components and operator compatibility.

Clutch Shaft Assembly Kit

Kit containing parts for the clutch shaft assembly.

Output Shaft Assembly Kit

Kit containing parts for the output shaft assembly.

Hardware Kit Details

Detailed list of hardware components included in the kit.

Door Track and Drive Chain Parts

Parts list for door track sections and drive chains.

Electrical Box Replacement Kits

Information on kits for replacing electrical boxes.

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