Model 10 Signals - Service and Installation Manual for Model 10 Signals Equipped With 3597-B Gate Mechanisms

Oct 22, 2026

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Service and Installation Manual for Model 10 signals equipped with 3597-B gate mechanisms, specifying technical sequence, wiring requirements, installation procedures, internal adjustments, and general maintenance tasks. The manual details how the Electronic Gate Monitor (EGM) protects the mechanism by monitoring generated voltage, de-energizing internal relays, and routing to the braking circuit when over-voltage, pumping, obstruction, or power-loss crash events occur. It also provides voltage and LED indicators behavior, reset methods, and setup guidance for safe gate arm service and operation.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages55

Reading Time2 h 19 min

AccessFree to download

Introduction

Section 1- Technical Sequence of Operation and Wiring Requirements

Sequence of Operation

EGM Controlled Fault Operations

Wiring Requirements, Voltage Drop Table

3597 Wiring Diagram

Section 2- Installation Instructions, Model 10 Signal

Foundation and Junction Box Base Details

Model 10 Signal

Mechanism Support Installation

Horizontal and Vertical Stop Details

Counterweight and Sidewalk Support Arm Installation

Gate Arm and Break-Away Adapter Installation

Gate Light Installation

Counterweight Installation

Counterweight Adjustments

Horizontal Torque Specification

Weight and Vertical Torque Tables

Section 3- Internal Adjustments

Gate Descending Adjustments

Contact Cam Information

Vertical Gate Position Adjustments

Contact Gap and Tension Adjustments

Section 4- General Maintenance

Service and Tests

Supply Voltage Checks

Brake Release Test

Relay Power Specifications

Obstruction Test

EGM By-Pass Procedure

EGM Set Point Adjustment

Gate Arm Service Instructions (Raising Weights)

Setup Checklist

Lubrication Recommendations

Section 5- Motor Brush Information

Section 6- Optional Equipment

Replacements Parts Listings

Brake Information

Set-Up and Adjustment Tools

Gate Gard Installation Instructions

Service and Installation Manual for Model 10 Signals Equipped With 3597-B Gate Mechanisms U.S. Patent Number: 6,307,339 Western-Cullen-Hayes Inc. 2700 West 36th Place, Chicago, Il 60632 Phone: 773-254-9600 Fax: 773-254-1110 [Web Site:](Web Site: www.wch.com)[ ](Web Site: www.wch.com)[www.wch.com](Web Site: www.wch.com) Revision Date 5/2023 TABLE OF CONTENTS Introduction 1 Section 1- Technical Sequence of Operation and Wiring Requirements 2 Sequence of Operation 2 EGM Controlled Fault Operations 4 Wiring Requirements, Voltage Drop Table 7 3597 Wiring Diagram 8 Section 2- Installation Instructions, Model 10 Signal 9 Foundation and Junction Box Base Details 9 Model 10 Signal 10 Mechanism Support Installation 11 Horizontal and Vertical Stop Details 12 Counterweight and Sidewalk Support Arm Installation 13 Gate Arm and Break-Away Adapter Installation 13 Gate Light Installation 15 Counterweight Installation 15 Counterweight Adjustments 16 Horizontal Torque Specification 17 Weight and Vertical Torque Tables 21 Section 3- Internal Adjustments 24 Gate Descending Adjustments 24 Horizontal Gate Position Adjustments 24 Snub Contact Cam Adjustment 24 Horizontal Stop Adjustment 24 Contact Cam Information 25 Vertical Gate Position Adjustments 26 Vertical Stop Adjustment 26 Gate Up, Gate Down and Gate Clear Contact Cam Adjustments 26 Contact Gap and Tension Adjustments 26 Section 4- General Maintenance 29 Service and Tests 29 Supply Voltage Checks 29 Brake Release Test 30 Relay Power Specifications 31 Obstruction Test 31 EGM By-Pass Procedure 31 EGM Set Point Adjustment 32 Gate Arm Service Instructions (Raising Weights) 32 Setup Checklist 33 Lubrication Recommendations 34 Section 5- Motor Brush Information 34 Section 6- Optional Equipment 34 Replacements Parts Listings 35 Brake Information 39 Set-Up and Adjustment Tools 46 Gate Gard Installation Instructions 47 THE 3597-B GATE MECHANISM FROM WESTERN-CULLEN-HAYES, INC. U.S. Patent 6,307,339 The 3597-B offers the same proven reliability as previous Western-Cullen-Hayes mechanisms but with the added performance of our patented Electronic Gate Monitor (EGM), and new gear motor with brake configuration. The Electronic Gate Monitor protects the mechanism from damage if: • The counterweights crash after the gate arm is knocked off. • The gate arm crashes down caused by loss of power. • The gate arm pumps. • The motor overloads due to an obstructed gate arm. The Model 3597-B also features, as standard, a power down and test switch that operates the mechanism to the horizontal position without a gate arm in place. This switch enables signal maintenance personnel to replace a damaged gate arm safely. The set up and service of the 3597-B is quite different than any other mechanism. Carefully read and follow the instructions in this manual to insure the proper set up and operation of the 3597-B Gate Mechanism. SECTION 1 TECHNICAL SEQUENCE OF OPERATION AND FIELD WIRING REQUIREMENTS Electronic Gate Monitor (EGM) Description: The Western-Cullen-Hayes, Inc. Model 3597-B Gate Mechanism incorporates an Electronic Gate Monitor (EGM) System that protects against damage to the gate mechanism when common failure conditions occur. The EGM operates by sensing voltage. If conditions exist that enables the DC mechanism motor to generate electricity, the EGM will sense the generated voltage which is greater than the normal DC power supply. When this over voltage condition occurs, the EGM de-energizes the two internal relays. A second circuit exists that accumulates voltage during normal, pumping and gate obstruction conditions. When the accumulated voltage reaches a certain threshold, the EGM deenergizes the two relays and connects the braking circuit. Nominal 12 VDC is supplied to the EGM by connecting the red (positive) 2A wire lead to terminal 3A located on the mechanism circu

FAQs

What is the Electronic Gate Monitor (EGM) and what does it protect against?

The EGM monitors voltage and de-energizes internal relays when failure conditions occur. It protects the gate mechanism from damage during events such as counterweight crashes after the gate arm is knocked off, gate arm crashes from power loss, gate arm pumping, and motor overload due to an obstructed gate arm.

What voltage supply and operating range are specified for the 3597-B gate mechanism?

The mechanism operating voltage is 12 VDC nominal, and supply voltage should be maintained between 11 and 16 VDC. The manual also states controller terminal voltage should not drop below 11 VDC during operation.

How does the EGM indicate a fault condition and how can it be reset?

Under normal conditions the EGM green LED illuminates; when a failure causes the EGM to de-energize the relays, the green LED goes dark. The reset signal is sent to the EGM each time a gate clear command is received from the control case, and the manual also notes a push-button on the EGM can reset a fault condition.

Oct 22, 2026

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