Table Of Contents; Lifting Motor Specifications; Application Information - Coffing Hoists Concert Series Operating, Maintenance & Parts Manual

Safety Precautions ......................................................................................................................................................................2
Lifting Motor Specifications .........................................................................................................................................................3
Application Information ...............................................................................................................................................................3
Safety Information .......................................................................................................................................................................4
Installation ...................................................................................................................................................................................4
Operation ....................................................................................................................................................................................5
Maintenance ...............................................................................................................................................................................6
Wiring Diagrams .......................................................................................................................................................................11
Trouble Shooting .......................................................................................................................................................................13
Inspection and Maintenance Check List ...................................................................................................................................14
Recommended Lubrication Schedule.......................................................................................................................................15
Replacement Parts List.............................................................................................................................................................16
Warranty .....................................................................................................................................................................Back Cover
LIFTING MOTOR
SPECIFICATIONS
The UJC is a rugged and portable lifting motor designed for the
demands of rigging applications. With its compact construction
and ability to operate inverted, the UJC allows for greater
flexibility in mounting the unit as required by each application.
The light weight and high strength of the aluminum alloy
housings are a plus when the lifting motor is moved from site to
site. The UJC's oil filled gearbox provides smooth and reliable
operation, while its magnetic disc brake provides the sure
stopping and secure holding of loads that is expected in rigging
applications. The lifting motor's travel is regulated by adjustable
up and down limit switches. As a standard, all UJC hooks are
equipped with hook latches.

APPLICATION INFORMATION

The UJC is intended for professional use in rigging applications
to lift and support material loads within its rated capacity. It is
designed as a component to be integrated into a
rigging system. The user is responsible for ensuring the
adequacy and reliability of their controller and power supply.
Coffing Hoists can not be held responsible for applications
other than those for which the UJC is intended. Prior to
installation and operation, we caution the user to review his
application for abnormal environmental or handling conditions
and to observe the applicable recommendations as follows:
Table 1 - Lifting Motor Specifications
Model Capacity
(tons)
UJC1016 1/2
UJC1032 1/2
UJC2016 1
UJC4008 2
Note: The 1HP, 115/230V models must have a dedicated power circuit rated for at least 20A, 125V when they are wired for 115V.
As a load is lifted, the lifting motors will experience an initial current surge of up to three times the values listed.
For more information contact: Sievert Crane and Hoist, (708) 771-1600, parts@sievertelectric.com, www.sievertcrane.com

TABLE OF CONTENTS

Lifting
Speed HP
fpm m/min 115/230V
16 4.1 1/2
32 8.2 1
16 4.1 1
8 2 1
3
ADVERSE ENVIRONMENTAL CONDITIONS
Do not use the lifting motor in areas containing flammable
vapors, liquids, gases or any combustible dusts or fibers. Refer
to Article 500 of the National Electrical Code. Do not use this
lifting motor in highly corrosive, abrasive or wet environments.
Do not use this lifting motor in applications involving extended
exposure to ambient temperatures below -10°F or above 130°F.
LIFTING OF HAZARDOUS LOADS
This lifting motor is not recommended for use in lifting or
transporting hazardous loads or materials which could cause
widespread damage if dropped. The lifting of loads which could
explode or create chemical or radioactive contamination if
dropped requires fail-safe redundant supporting devices which
are not incorporated into this lifting motor.
LIFTING OF GUIDED LOADS
This lifting motor is recommended only for lifting freely
suspended loads and is not for use in the lifting of guided
loads, including dumbwaiters and elevators. Such applications
require additional protective devices which are not
incorporated into this lifting motor. For such applications, refer
to the requirements of applicable state and local codes, and
the American National Safety Code for elevators, dumbwaiters,
escalators and moving walks (ASME A17.1).
Failure to comply with safety precautions outlined
throughout this manual can result in serious injuries
or death. Before using this lifting motor, each
operator should become thoroughly familiar with all
warnings, instructions and recommendations in this
manual.
Approximate Motor Amperage at Full Load
1-Phase
230/460V 208V
7.6/3.8 2/1 2.3
14/7 3.2/1.6 3.6
14/7 3.2/1.6 3.6
14/7 3.2/1.6 3.6
Country Club Road
P.O. Box 779
Wadesboro, NC 28170 USA
TEL: (800) 477-5003
FAX: (800) 374-6853
3-Phase
380V 415V 575V
1.2 1.1 .76
1.9 1.8 1.2
1.9 1.8 1.2
1.9 1.8 1.2