Harrington NER2020L - 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

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ur

y

or death, and/or

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e.

Table of Contents

Questions and Answers

J
Justin RichAug 21, 2025
Why is my Harrington NER2020L moving in the wrong direction?
- B
  Brendan SmithAug 21, 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.
C
Caitlyn VazquezNov 6, 2025
What to do if my Harrington Chain Hoist will not operate?
- M
  Monica CabreraNov 6, 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

1.0 Important Information and Warnings

1.1 Terms and Summary

3.0 Preoperational Procedures

3.5 Electrical Connections

Guides on connecting pendant and power supply cables, including safety precautions.

3.6 VFD Setup (Dual Speed Only)

Explains VFD keypad interface, display, and speed/frequency range settings.

3.7 Preoperational Checks and Trial Operation

Lists essential checks and trial operations before hoist use.

4.0 Operation

4.2 Shalls and Shall Nots for Operation

Lists mandatory and prohibited actions for safe hoist operation.

4.3 Hoist Controls

5.0 Inspection

5.3 Frequent Inspection

6.0 Maintenance and Handling

6.3 Lubrication - Gearbox

7.0 Troubleshooting

7.1 Troubleshooting Guide

Provides a table of symptoms, causes, and remedies for hoist issues.

Harrington NER2020L Specifications

General

Brand	Harrington
Model	NER2020L
Category	Chain Hoists
Language	English

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