Table of Contents
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EFFECTIVE: February 19, 2009
Owner's Manual
ELECTRIC
CHAIN HOIST
ER2 and NER2
SERIES
1/8 Ton through 5 Ton Capacity
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
injury or death, and/or property damage.
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Chapters
Table of Contents
Related Manuals for Harrington NER2020L
Summarization of Contents
Important Information and Warnings
Terms and Summary
Defines signal words (Danger, Warning, Caution, Notice) and provides general safety advice for hoist operation.
Warning Tags and Labels
Illustrates and explains the purpose of warning tags attached to the hoist for safety compliance.
Technical Information
Specifications
Details product codes, capacities, lifting speeds, and traversing speeds for ER2 and NER2 hoist models.
Operating Conditions and Environment
Specifies temperature, humidity, noise levels, enclosure ratings, and supply voltage requirements for hoist operation.
Dimensions
Provides diagrams and tables outlining the physical dimensions for single and dual speed hoist models.
Preoperational Procedures
Gearbox
Covers gearbox oil fill, checking procedures, and installation of vented oil caps for ER2 hoists.
Chain
Explains chain component arrangement, stopper placement, and handling of chain containers.
Mounting Location
Emphasizes ensuring suspension and support structures are adequate for hoist and loads.
Mounting the Hoist
Outlines mounting procedures for manual trolleys, motorized trolleys, and fixed locations.
Electrical Connections
Covers pendant cord and power supply cable connections to the hoist, including safety precautions.
VFD Setup (Dual Speed Only)
Details VFD setup for dual speed hoists, including keypad interface and speed settings.
Preoperational Checks and Trial Operation
Outlines essential checks and trial operations before starting to use the hoist.
Operation
Introduction
Introduces hoist operation, emphasizing safety and operator responsibilities.
Shall's and Shall Not's for Operation
Lists essential operational guidelines, specifying what operators must and must not do.
Hoist Controls
Explains the function of the Emergency Stop button and pendant controls for single and dual speed hoists.
Inspection
General
Provides definitions for designated and qualified persons, and service classifications like normal, heavy, and severe.
Inspection Classification
Divides inspection into Frequent and Periodic classifications based on intervals and hoist condition.
Frequent Inspection
Details the items to be checked during frequent inspections, including functional mechanisms and braking systems.
Periodic Inspection
Outlines checks for periodic inspections, covering wear, corrosion, and electrical components.
Occasionally Used Hoists
Specifies inspection requirements for hoists that are used infrequently.
Inspection Records
Stresses the importance of maintaining dated inspection reports and records.
Inspection Methods and Criteria
Provides methods and criteria for inspecting specific hoist items like hooks, chains, and limit switches.
Maintenance and Handling
Count/Hour Meter
Explains the function of the Count/Hour meter for single speed hoists and VFD parameters for dual speed hoists.
Gear Oil
Discusses using the C/H meter with load to estimate gear oil change intervals.
Electromagnetic Brake
Explains using the C/H meter to determine when the electromagnetic brake needs monitoring or replacement.
Lubrication – Load Chain, Hooks and Suspension
Details lubrication procedures for load chains, hooks, and suspension components.
Lubrication - Gearbox
Covers gearbox lubrication, specifying different oils for ER2 and NER2 models and oil level checks.
Motor Brake
States that the motor brake is not adjustable and refers to brake gap criteria.
Load Chain
Covers lubrication and cleaning, and provides instructions for load chain replacement.
Friction Clutch and Mechanical Load Brake with Friction Clutch
Addresses abnormal operation or slippage in friction clutches and mechanical load brakes, recommending replacement.
Storage
Gives guidelines for storing ER2 models with vented oil caps and general storage location requirements.
Outdoor Installation
Provides precautions for outdoor installations, including weather protection and corrosion prevention.
Troubleshooting
Troubleshooting Guide
Lists common hoist symptoms, their causes, and recommended remedies for troubleshooting.
Parts List
Housing and Motor Parts
Lists and illustrates housing and motor components for various hoist models.
Gearing Parts
Illustrates gearing components for specific ER2/NER2 hoist models.
Hook and Chain Parts
Illustrates hook and chain components for specific ER2/NER2 hoist models.
Electric Parts (Single Speed)
Illustrates and lists electrical components for single speed hoists.
Electric Parts (Dual Speed)
Illustrates and lists electrical components for dual speed hoists.
Power Supply and Pendant Parts
Illustrates and lists power supply and pendant parts, including plug connections.
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