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Harrington ER2 Series - User Manual

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Owner’s Manual
ELECTRIC
CHAIN HOIST
ER2 and NER2
SERIES
1/8 Ton through 5 Ton Capacity
EFFECTIVE: February 19, 2009
Code, Lot and Serial Number
WARNING
This equipment should not be installed, operated, or
maintained by any person who has not read and understood
all the contents of this manual. Failure to read and comply
with the contents of this manual can result in serious bodily
in
j
ur
y
or death, and/or
p
ro
p
ert
y
dama
g
e.

Table of Contents

Questions and Answers

  • S
    Sabrina FlynnAug 17, 2025
    Why is my Harrington ER2 moving in the wrong direction?
    • F
      fishersandraAug 17, 2025
      If your Harrington Chain Hoist is moving in the wrong direction, the issue might be: * **Reversed Power Supply:** The power supply might have reversed phasing. In this case, switch two of the three power supply cord wires at the power source. Refer to Section 3.7.11 for instructions on how to check for correct power supply phase connection. * **Wiring:** There might be improper electrical connections. Refer to the wiring diagram and check all connections.
  • B
    bwilsonOct 31, 2025
    What to do if my Harrington Chain Hoist will not operate?
    • T
      tanya72Oct 31, 2025
      If your Harrington Chain Hoist isn't working, here's what to check: * **Power Issues:** Look at the circuit breakers, switches, fuses, and connections on the power lines/cable to ensure they're functioning correctly. * **Voltage/Frequency:** Verify that the voltage and frequency of the power supply match the specifications on the motor's nameplate. * **Overload:** Make sure the hoist isn't overloaded; reduce the load to stay within the hoist's rated capacity. * **Wiring:** Turn off the power and inspect the wiring connections on the hoist control panel and inside the push-button pendant for any improper, loose, or broken wires. * **Brake:** Check the motor brake adjustment to ensure it has proper clearance. If the motor is overheating, see the troubleshooting steps for "Motor ...

Summary

Important Information and Warnings

Terms and Summary

Explains signal words like Danger, Warning, Caution, and Notice.

Warning Tags and Labels

Describes the warning tags supplied with the hoist and their importance.

Technical Information

Specifications

Covers product codes, model differences, and operating conditions.

Dimensions

Preoperational Procedures

Electrical Connections

VFD Setup (Dual Speed Only)

Details VFD keypad interface and operator display functions.

Preoperational Checks and Trial Operation

Outlines necessary checks before operating the hoist.

Operation

Introduction

General safety warnings and responsibilities for hoist operators.

Shalls and Shall Nots for Operation

Lists essential operational DOs and DON'Ts for safe hoist use.

Hoist Controls

Explains operation of pendant controls and emergency stop buttons.

Inspection

Frequent Inspection

Periodic Inspection

Inspection Methods and Criteria

Lists specific inspection methods and criteria for hoist components.

Maintenance and Handling

Count;Hour Meter

Explains the function of the Count/Hour meter for single and dual speed hoists.

Lubrication - Load Chain, Hooks and Suspension

Lubrication - Gearbox

Load Chain

Friction Clutch and Mechanical Load Brake with Friction Clutch

Troubleshooting

Troubleshooting Guide

Lists common hoist symptoms, causes, and remedies.

Harrington ER2 Series Specifications

General IconGeneral
TypeElectric Chain Hoist
Phase1 or 3
Capacity0.25 to 5 tons
MotorThermally protected
BrakeMechanical
ControlPendant
Chain MaterialAlloy steel
HooksForged steel
StandardsASME B30.16
Maximum Lift30 feet

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