Table of Contents
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For more information contact: Sievert Crane and Hoist, (708) 771-1600, parts@sievertelectric.com, www.sievertcrane.com
Operating, Maintenance &
JLC Series
1/4 Ton
JLC0516
JLC0532
1 Ton
JLC2016
For JLCET models refer to this manual and
ETA680-1 for trolley information.
F
ollow all instructions and warnings for
inspecting, maintaining and operating this hoist.
The use of any hoist presents some risk of personal injury
or property damage. That risk is greatly increased if proper
instructions and warnings are not followed. Before using this
hoist, each operator should become thoroughly familiar with
all warnings, instructions, and recommendations in this
manual. Retain this manual for future reference and use.
Forward this manual to the hoist operator.
Failure to operate the equipment as directed in the manual
may cause injury.
Should you have any questions regarding this product,
please call Coffing Hoists at (800) 477-5003.
Made in the U.S.A.
Before using the hoist, fill in the information below:
Model No.
Serial No.
Purchase Date
JLC680
Parts Manual
250 lbs
JLC0232
1/2 Ton
JLC1016
JLC1032
2 Ton
JLC4008
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Table of Contents
Related Manuals for Coffing Hoists JLC2016
Summarization of Contents
SAFETY PRECAUTIONS
General Warnings
Critical safety instructions to prevent death or serious injury from hoist misuse.
Operational Cautions
Guidelines to prevent minor/moderate injury during hoist operation.
HOIST SPECIFICATIONS
Model Specifications and Motor Amperage
Details hoist models, capacities, speeds, HP, and motor amperage ratings.
APPLICATION INFORMATION
Adverse Environmental Conditions
Guidelines for using the hoist in non-standard or hazardous environments.
Lifting of Hazardous Loads
Restrictions and warnings for lifting hazardous or contaminating materials.
Lifting of Guided Loads
Limitations for lifting guided loads like elevators and dumbwaiters.
SAFETY INFORMATION
General Safety Guidelines
Essential safety practices for operating the hoist, covering power, environment, and load handling.
INSTALLATION
Installation Requirements and Procedures
Steps and checks required before and during hoist installation, including structure and power.
CHAIN CONTAINER (Optional Accessory)
Chain Container Installation
Instructions for installing optional chain containers for safe operation.
OPERATION
Safe Operating Practices
Key practices for safe and effective hoist operation, including load handling and chain checks.
OVERLOAD LIMITING PROTECTION
Clutch Function and Limitations
Explanation of the overload limiting clutch and its operational constraints.
MAINTENANCE
Inspections and Maintenance Schedule
Guidelines for planned inspection routines and frequency based on usage.
Lowering Without Power
Procedure for safely lowering a load when power is lost.
HOOKS
Hook Inspection and Replacement
Daily and annual inspection procedures for hoist hooks, including wear and damage checks.
CHAIN
Chain Inspection and Maintenance
Procedures for inspecting chain wear, elongation, and proper maintenance.
CHAIN REPLACEMENT
Replacing Chain While Installed
Step-by-step guide for replacing the load chain while it is still installed on the hoist.
LIMIT SWITCH ADJUSTMENT
Adjusting Upper Limit Switches
Procedure for setting the upper limit switch using the gold adjustment nut.
Adjusting Lower Limit Switches
Procedure for setting the lower limit switch using the silver adjustment nut.
BRAKE
Brake Adjustment Procedure
Detailed steps for adjusting the hoist brake gap to ensure proper operation.
HOIST CONTROLS
Control System Interlocking
Explanation of how hoist controls and contactors are interlocked for safety.
WIRING
Dual Voltage Conversion
Instructions for converting dual-voltage hoists to match the available power supply.
LUBRICATION
Load Chain Lubrication
Proper method for cleaning and lubricating the hoist's load chain.
Gearing Lubrication
Information on gear oil type, level checks, and periodic changes for the hoist transmission.
HOIST REPAIRS
Electrical Parts and Brake Repair
Procedures for repairing electrical components, contactors, and the brake assembly.
Motor Repair and Replacement
Steps for inspecting, repairing, or replacing the hoist motor, including its mounting.
Gearing System Disassembly
Detailed instructions for disassembling the hoist's gearing for inspection or repair.
SUSPENSION
Inspecting Suspension Components
Procedures for inspecting hoist suspension parts like load sheaves and chain guides.
POWER CORD PRECAUTIONS
1-Phase Hoist Power Cable Sizing
Recommendations for selecting appropriate power cord sizes for 1-phase hoists based on HP and length.
TROUBLE SHOOTING
Hook Fails to Stop
Troubleshooting steps for when the hoist hook does not stop at the end of its travel.
Hoist Does Not Respond to Pushbutton
Diagnosing and resolving issues when the hoist fails to respond to pushbutton commands.
Hook Does Not Stop Promptly
Troubleshooting for when the hoist hook fails to stop promptly after releasing the control.
Hook Moves in Wrong Direction
Steps to correct incorrect hook travel direction, often due to wiring or phase issues.
Hoist Hesitates to Lift
Diagnosing why the hoist hesitates to lift loads when energized, checking brake and voltage.
Hook Raises but Will Not Lower
Troubleshooting for when the hoist hook can only raise and cannot lower.
Hook Lowers but Will Not Raise
Troubleshooting for when the hoist hook can only lower and cannot raise.
Motor Overheats
Identifying causes and solutions for motor overheating, including load, voltage, and usage.
TROUBLE SHOOTING CONTINUED
Lack of Proper Lifting Speed
Resolving issues related to insufficient or slow lifting speed, checking load and voltage.
Motor Brake Noise or Chatter
Troubleshooting causes of noise or chatter from the motor brake during startup.
Motor Brake Buzzing
Diagnosing the cause of a buzzing sound from the motor brake while the hoist is running.
PARTS LIST
Basic Hoist Components
List of parts for the basic hoist assembly, including reference numbers and descriptions.
HOIST MOTOR PARTS
115/230V 1-Phase Motor
Parts list for the 115/230V single-phase hoist motor, including components and diagrams.
HOIST MOTOR PARTS
3-Phase Motor
Parts list for 3-phase hoist motors (1-speed and 2-speed), including components and diagrams.
BRAKE & SOLENOID PARTS
Brake and Solenoid Components
List of replacement parts for the hoist brake assembly and solenoid, with diagrams.
ELECTRICAL PARTS
1-Speed Models
Parts list for electrical components in 1-speed hoist models, including contactors and transformers.
ELECTRICAL PARTS
2-Speed Models
Parts list for electrical components in 2-speed hoist models, including speed control relays.
PUSHBUTTON STATION PARTS
1-Speed Models
List of parts for the 1-speed pushbutton station, including cables, enclosures, and contacts.
PUSHBUTTON STATION PARTS
2-Speed Models
List of parts for the 2-speed pushbutton station, including cables, enclosures, and buttons.
LIMIT SWITCH ASSEMBLY PARTS
Standard Limit Switch Components
List of parts for the standard limit switch assembly, including switches, shafts, and nuts.
LIMIT SWITCH ASSEMBLY PARTS
Long Lift Limit Switch Components
List of parts for the long lift limit switch assembly, including switches, shafts, and screws.
TRANSMISSION PARTS
Transmission Components
List of parts for the hoist transmission system, including gears, bearings, and shafts.
CHAINING PARTS
Chain and Hook Assemblies
List of parts for the chain, hooks, load blocks, and related assemblies.
AUTHORIZED WARRANTY REPAIR CENTERS AND PARTS DEPOTS
United States Service Locations
List of authorized Coffing service centers and parts depots across the United States.
Canadian Service Locations
List of authorized Coffing service centers and parts depots in Canada.
COFFING WARRANTY
Warranty Terms and Conditions
Details of the Coffing Hoists warranty, exclusions, and limitations.
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