Coffing Hoists Concert Series, UJC4008, UJC1032, UJC2016, UJC1016 Operating, Maintenance & Parts Manual

2 Ton (1,814 kg)

UJC4008

1 Ton

(907 kg)

UJC2016

Operating, Maintenance &

P arts Manual

Lifting Motor

UJC680

Before using the lifting motor, fill in the information below:

Model No.

Serial No.

Purchase Date

1/2 Ton (454 kg)

UJC1016
UJC1032

The use of any lifting motor 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 lifting motor,
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 lifting motor operator. Failure to operate the equipment as directed
in the manual may cause injury.

Should you have any questions or have problems with this product, please call Coffing Hoists at
[phone].

UJC

Concert Series

F

ollow all instructions and warnings for
inspecting, maintaining and operating this
lifting motor.

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

2

SAFETY PRECAUTIONS

Each UJC Lifting Motor is built in accordance with the
specifications contained herein and at the time of manufacture
complies with our interpretation of applicable sections of
*American Society of Mechanical Engineers Code (ASME)
B30.16 “Overhead Hoists,” the National Electrical Code
(ANSI/NFPA 70) and the Occupational Safety and Health Act
(OSHA). Since OSHA states the National Electrical Code applies
to all electric lifting motors, installers are required to provide
current overload protection and grounding on the branch circuit
section in keeping with the code.Check each installation for
compliance with the application, operation and maintenance
sections of these articles.

*Copies of this standard can be obtained from ASME Order
Department, 22 Law Drive, Box 2300, F airfield, NJ 07007-2300,
U.S.A.

1. NOT operate a damaged, malfunctioning or unusually
performing lifting motor.

2. NOT operate the lifting motor until you have thoroughly read
and understood the manufacturer’s Operating and
Maintenance Instructions or Manuals.

3. NOT operate a lifting motor which has been modified without
the manufacturer’s approval or without certification that it is in
conformity with ANSI/ASME B30 volumes.

4. NOT lift more than rated load for the lifting motor .

5. NOT use lifting motor with twisted, kinked, damaged, or worn
load chain.

6. NOT use the lifting motor to lift, support, or transport people.

7. NOT stand beneath a moving load! Do not move a load in
such a manner as to endanger personnel.

8. NOT operate a lifting motor unless all persons are and
remain clear of the supported load.

9. NOT operate unless load is centered under lifting motor.

10. NOT attempt to lengthen the load chain or repair damaged
load chain.

11. Protect the lifting motor’s load chain from weld splatter or
other damaging contaminants.

12. NOT operate lifting motor when it is restricted from forming a
straight line from hook to hook in the direction of loading.

13. NOT use load chain as a sling, or wrap chain around load.

14. NOT apply the load to the tip of the hook or to the hook latch.

15. NOT apply load unless load chain is properly seated in the
chain sprocket(s).

16. NOT apply load if bearing prevents equal loading on all load
supporting chains.

17. NOT operate beyond the limits of the load chain travel.

18. NOT leave load supported by the lifting motor unattended
unless specific precautions have been taken.

19. NOT allow the load chain or hook to be used as an electrical
or welding ground.

20. NOT allow the load chain or hook to be touched by a live
welding electrode.

21. NOT remove or obscure the warnings on the lifting motor.

22. NOT operate a lifting motor on which the safety placards or
decals are missing or illegible.

23. NOT operate a lifting motor unless it has been securely
attached to a suitable support.

24. NOT operate a lifting motor unless load slings or other
approved single attachments are properly sized and seated in
the hook saddle.

25. T ake up slack carefully - make sure load is balanced and load
holding action is secure before continuing.

26. Shut down a lifting motor that malfunctions or performs
unusually and report such malfunction.

27. Warn personnel of an approaching load.

1. Maintain firm footing or be otherwise secured when operating
the lifting motor.

2. Check brake function by tensioning the lifting motor prior to
each lift operation.

3. Use hook latches. Latches are to retain slings, chains, etc.
under slack conditions only.

4. Make sure the hook latches are closed and not supporting
any parts of the load.

5. Make sure the load is free to move and will clear all
obstructions.

6. Avoid swinging the load or hook.

7. Make sure hook travel is in the same direction as shown on
the controls.

8. Inspect the lifting motor regularly, replace damaged or worn
parts, and keep appropriate records of maintenance.

9. Use factory recommended parts when repairing the unit.

10. Lubricate load chain per lifting motor manufacturer’s
recommendations.

11. NOT use the lifting motor’s o verload limiting clutch to measure
load.

12. NOT use limit switches as routine operating stops.They are
emergency devices only.

13. NOT allow your attention to be diverted from operating
the lifting motor.

14. NOT allow the lifting motor to be subjected to sharp contact
with other lifting motors, structures, or objects through misuse.

15. NOT adjust or repair the lifting motor unless qualified to
perform such adjustments or repairs.

Improper operation of a lifting motor can create a
potentially hazardous situation which, if not avoided,
could result in death or serious injury. To avoid such a
potentially hazardous situation, THE OPERATOR
SHALL:

Improper operation of a lifting motor can create a
potentially hazardous situation which, if not avoided,
could result in minor or moderate injury. To avoid such
a potentially hazardous situation, THE OPERATOR
SHALL:

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

3

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 adjustab le
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:

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, abrasiv e or wet environments.
Do not use this lifting motor in applications involving e xtended
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 elev ators. 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).

TABLE OF CONTENTS

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 Approximate Motor Amperage at Full Load

Model Capacity Speed HP 1-Phase 3-Phase

(tons) fpm m/min 115/230V 230/460V 208V 380V 415V 575V

UJC1016 1/2 16 4.1 1/2 7.6/3.8 2/1 2.3 1.2 1.1 .76

Note: The 1HP, 115/230V models must hav e a dedicated po w er circuit r ated 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.

UJC1032 1/2 32 8.2 1 14/7 3.2/1.6 3.6 1.9 1.8 1.2

UJC2016 1 16 4.1 1 14/7 3.2/1.6 3.6 1.9 1.8 1.2

Table 1 - Lifting Motor Specifications

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.

UJC4008 2 8 2 1 14/7 3.2/1.6 3.6 1.9 1.8 1.2

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

SUSPENDING LOADS OVER PEOPLE

The suspension of loads over people demands the highest
level of rigging knowledge, equipment, and equipment
maintenance.The UJC must be installed and used in
accordance to rigorous rigging standards required when
suspending loads over people.These include the following
important precautions.

1. It is preferred that the load alwa ys be tied off with auxiliary
chains or cables before access to the area beneath the load
is permitted. As an alternative, the system may be designed
such that malfunction or failure of one lifting motor’ s load
bearing components does not cause load loss and/or
overloading of any other lifting motors in the system.Note
that in such a system, lifting motor performance and function
must be monitored visually or with the use of load cells.

2. Never operate the lifting motor while people are under

the load.

SAFETY INFORMATION

1. Follow all local electrical and safety codes, as well as the
National Electrical Code (NEC) and the Occupational
Safety and Health Act (OSHA) in the United States.

2. The lifting motor must be securely and adequately
grounded.The power pigtail includes a green lead for
grounding.

3. Be careful when touching the exterior of an operating
motor; it may be hot enough to be painful or cause injury.
With modern motors this condition is normal if operated at
rated load and voltage (modern motors are built to operate
at higher temperatures).

4. Protect the power and control cables from coming in
contact with sharp objects.

5. Do not kink the electrical cables and never allow them to
come in contact with oil, grease, hot surfaces, or chemicals .

6. Make certain that the power source conforms to the
requirements of your equipment.

7. Inspect the unit daily before operating lifting motor.

8. Cluttered areas and benches invite accidents.

9. The operator should not engage in any practice which will
divert his attention while operating the lifting motor.

10. Before using the lifting motor, the operator should be
certain that all personnel are clear.

11. Do not operate lifting motor with loads exceeding its rated
capacity.

12. Supporting frames or beams used as a lifting motor hanger
must have a greater load capacity than the lifting motor.

13. Do not attempt to operate lifting motor beyond normal
maximum lift range.

14. Align lifting motor for a straight line pull. Avoid side pull or
end pull.

15. Do not operate lifting motor with twisted or damaged chain.

16. Do not operate a damaged or malfunctioning lifting motor
until necessary adjustments or repairs have been made.

17. Do not use lifting motor to lift people or to carry loads over
people.

18. Do not leave a load suspended in the air unattended.

19. Always remove load before making repairs .

20. Do not remove or obscure capacity or warning decals.

INSTALLATION

POWER & CONTROL SYSTEM REQUIREMENTS

The UJC must be connected to a power and control system
that is properly designed to operate the lifting motor and to
handle the power consumption of the motor . Note the motor
amperages listed on page 3.Be aware that the instantaneous
current surge experienced when lifting is typically up to three
times the steady current.The unit has a control pigtail and
power pigtail for electrical connections.Control voltage is
115V as a standard (24V optional).Power conductors and
branch circuits connected to the unit should be adequate to
handle the current draw. This is especially important to
consider when a unit is wired for 115V (See Table 2, page 11).

PRELIMINARY CHECKS

Before installing the lifting motor , check the following:

1. After unpacking the unit, carefully inspect for any damage

that may have occurred during transit.Check for loose,
missing or damaged parts. Shipping damage claims must be
filed with the carrier.Be sure that the voltage labeled on the
unit matches your power supply.

2. Make sure all supporting structures and attaching devices

have the strength to withstand several times the weight of
the intended loads.If in doubt, consult a qualified structural
engineer.

3. Provide proper branch circuit protection for the lifting motor

as required by the prevailing electrical codes in y our area.

4. Lifting motors should not experience voltage drops of more

than 10% of the supply voltage.It is critical to use adequate
sized power cables, especially with 1-phase models (See
Table 2). On dual voltage lifting motors, the installer must
ensure that the lifting motor is correctly wired for the
intended voltage (See WIRING, page 9).

5. ALWAYS DISCONNECT LIFTING MOTOR FROM POWER

SUPPLY before removing electrical cover or when making
any electrical connection in the lifting motor.

6. The user’s control board must be grounded in accordance with

the electrical codes that are applicable in your area.Pow er
cables to lifting motors must include a ground conductor .The
power pigtail includes a green grounding conductor .

7. The installation area must provide safe operating conditions

for the operator, including sufficient room for the operator
and other personnel to stand clear of the load at all times.

4

Always disconnect the power source before working
on or near a lifting motor or its connected load. If the
power disconnect point is out of sight, lock it in the
open position and tag to prevent unexpected
application of power.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

5

INSTALLING THE LIFTING MOTOR

1. Be certain that supporting structures and attachment points
have the strength to withstand several times the weight of
the intended loads.

2. Hooks should be attached to appropriate points such that
the load will be applied at the saddle of the hook only. Never
allow a load to rest on the tip of a hook.Hook latches should
always close completely.

3. The UJC can be mounted upright or upside down.

4. Connect the controls to the lifting motor as shown in the
Wiring Diagrams starting on page 11.When installing a
three-phase lifting motor, check to make sure the lifting
motor travels in the direction intended when operating the
controls.To correct improper motor tra vel, reverse any two
wires (except the green ground wire) at the power source.
Do not change connections in the lifting motor.Once the
direction of travel is v erified to be correct, permanent
connections can be made at the power source.

5. Once the controls are properly connected, run the motor in
the down direction to allow enough length of chain to attach
the load hook to its suspension point.Once again, you
should be certain of the structural strength at the attachment
point and ensure that the load will bear on the saddle of the
hook.The lifting motor should be permitted to align itself for
a straight line pull.Do not attempt to pull around corners.

6. Reset the limit switches to allow f or only the amount of travel
required (See LIMIT SWITCH ADJUSTMENT, page 8).

7. It is imperative that no twists exist in the chain, especially on
double-reeved units. Chain twists can create hazardous
conditions! Twists occur when the 2-ton load block is
capsized or when the slack end of chain is not properly
attached at the side of the lifting motor.

8. If necessary, lubricate the chain, see LUBRICATION, page 9.

CHAIN BAG (OPTIONAL ACCESSARY)

It is strongly recommended to use a chain bag with the UJC.
Chain bags like shown in Figure 1 are available from Coffing
Hoists.The bags, which are colored black, fit closely to the lifting
motor and are as inconspicuous as possible.Be sure to follow
the directions that come with UJC chain bags before installing.

OPERATION

This lifting motor is designed for operation within the limits of its
rated capacity. It is controlled by a user supplied control system
or a pushbutton station.The UP direction is controlled by
closing the circuit between X1 and C20.DOWN is controlled by
closing the circuit between X1 and C21 (See Figures 7A-7C).

OVERLOAD LIMITING PROTECTION

This lifting motor is equipped with a factory-calibrated overload
limiting clutch that will permit the lifting of loads within its rated
capacity, but will prevent the lifting of damaging overloads while
the lifting motor is being operated.If the load being lifted
exceeds the lifting capability of the overload clutch, the motor
will continue to run, causing overheating of both the clutch and
motor.This condition should be avoided by immediately
releasing the “UP”button and reducing the load to within the
rated capacity of the lifting motor.See GEARING, page 10,
for additional instructions on this device.

LIMITS OF TRAVEL

The UJC’s tra vel is limited by “UP” and “DOWN” limit switches
that should be adjusted for the application to prev ent
dangerous conditions or incidents that could occur with
overtravel.The operator should be aware of the location of the
load at all times.If the extreme limits are encountered, the user
should immediately stop the motor.

With properly set limits, tandem units can be synchronized by
easing each one to its corresponding limit.Depending on the
application, you will use the “UP”or “DOWN”limit as your guide.

OPERATING NOTES

Here are some points which must be observed to maintain
proper operation.

1. Do not overload the lifting motor.

2. Do not make extreme side pulls with the lifting motor.

3. Do not sling the lifting motor load chain around an

attachment point. Use a proper sling.

4. Before raising a load, always check to see that it is held
securely in the hook or sling chains, etc.Raise the load
only until the load chain is taut and then double check the

Do not attempt to store more chain in a chain bag
than outlined on its instruction sheet or serious
damage to the lifting motor may result and hazardous
conditions may be created.

The overload limiting clutch is an emergency
protective device and should not be used to measure
the maximum load to be lifted, or to sense the
overload imposed by a constrained load. While the
overload limiting clutch will protect the lifting motor
from damaging overloads, it will not ensure that a
load is within the rated capacity of the lifting motor.

Figure 1 - UJC
With Optional
Chain Bag

Do not use lifting motor to lift, support or otherwise
transport people.

Do not purposely allow the overload limiting clutch to
slip. Excessive slippage will damage the clutch and
motor. Hazardous conditions will be created!

Product Codes:

UJC927-3

70 ft Chain Capacity

UJC927-4

120 ft Chain Capacity

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

Note: UJC4008

uses twice the

amount of chain

than the

single-reeved

models.

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

rigging before continuing to raise the load.Load must be
supported in saddle of hook, not by hook tip or hook latch.

5. Do not stand beneath a moving load! Do not move a load in
such a manner as to endanger personnel.

6. Do not lower into areas where visibility is obscured unless
someone else is guiding the operation.

7. Use common sense at all times when operating a lifting motor.

8. Do not operate if direction of hook travel is not the same as
indicated on button being pushed.

9. Do not operate unless hook travel limit devices function.
Test without load each shift.

10. Do not operate when lifting motor is not centered over load.

11. Do not operate if chain is not seated properly in sprockets
or sheave grooves.

12. Do not operate a damaged or malfunctioning lifting motor.

13. DO NOT USE LIFTING MOTOR TO LIFT, SUPPORT OR
OTHERWISE TRANSPOR T PEOPLE.

MAINTENANCE

INSPECTIONS

A planned inspection routine should be established for this
lifting motor based upon frequency of use, severity of use, and
environmental conditions.Some inspections should be made
frequently (daily to monthly) and others periodically (monthly to
yearly).It is strongly recommended that an Inspection and
Maintenance Check List and an Inspector’s Report, similar to
those shown in Figures 8A and 8B, be used and filed for
reference.All inspections should be performed or overseen by
a designated inspector.Special inspections should be made
following any significant repairs or any oper ating occurrence
leading one to suspect that the lifting motor’s capability ma y
have been impaired.

LOWERING WITHOUT POWER

If the power fails with a load suspended, the lifting motor will
automatically stop.In an emergency the load can be lowered
without power as follows:

1. DISCONNECT LIFTING MOT OR FROM POWER SUPPLY

AND REMOVE ELECTRICAL COVER.

2. Open disc brake manually by using two screwdriver blades,

one on each side of the brake at a point close to the brake
spring posts.Apply pressure to the underside of the
armature plate (points “X”, Figure 4, page 9) to close the
solenoid and release the brake.

3. Use several quic k releases instead of holding br ake open
continuously. Do not exceed normal lowering speed.

HOOKS

Refer to Figure 2.

1. Inspect hooks once daily for cracking, extreme wear or
spreading.Replace hooks showing any of these signs.If the
throat openings are spread wider than the maximum
permissible 15% increase listed here, the hooks have been
overstressed and must be replaced.Any hook that is bent or
twisted more than 10° from the plane of an unbent hook
must also be replaced.

2. The hook latches should be inspected to ensure that they
close the hook throat opening in a secure manner when a
load is applied.Inspect the hook shank and nut for any
stripping of the threads or other damage.The hook nut should
be fully restrained by the retaining pin.

3. In addition to above, hooks should be inspected for cracks
by the magnetic particle, dye penetrant or other suitable
crack testing inspection method.This should be done at
least once a year.

1 Ton & Under 1

11

/32"1

7

/32"

2 ton 1

11

/32"1

11

/32"

(*) Maximum permissible throat opening of hook.

CHAIN

Chain is to be kept clean and lubricated (See LUBRICATION,
page 9).Visually check chain ev ery time lifting motor is used.
The lifting motor must not be operated when chain is twisted or
kinked.An important phase of lifting motor maintenance is
chain inspection.Check individual links and check for chain
elongation.

6

Do not allow screw driver blades to touch rotating
friction disc “C” (See Figure 4, page 9).

Do not allow the load to descend rapidly. This causes
the motor to race and serious damage may result.

“X” Dimension*

Lifting Motor Load Suspension

Capacity Hook Hook

The chain used on this lifting motor has very
carefully controlled dimensions and has been heat
treated. Do not attempt to substitute any other
manufacturer’s chain.

Failure to follow proper lockout/tagout procedures may
present the danger of electrical shock.

TO AVOID INJURY:
Disconnect power and lockout/tagout disconnecting
means before removing cover or servicing this
equipment.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

X

Figure 2 — Hook

Inspection

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

7

1. Check the chain for overall wear or stretch by selecting an
unworn, unstretched length of chain (at the slack end for
example).Let the chain hang vertically with a light load
(about 20 pounds) on the chain to pull it taut.Use a large
caliper to measure the outside length of a convenient
number of links (about 12").Measure the same number of
links in a used section of chain and calculate the percentage
increase in length of the worn chain.

2. If the length of the worn chain is more than 1½% longer than
the unused chain (0.015" per inch of chain measured), then
the chain should be replaced.If the chain is worn less than
1½%, check it at seve ral more places along its length.If any
section is worn more than 1½%, the chain should be replaced.

Chain Replacement with Chain in Lifting Motor

1. With the unit hanging by the suspension hook (decals
upside down), run the load hook to its “UP”limit.

2. DISCONNECT LIFTING MOTOR FROM POWER SUPPLY
and remove the electrical cover.

3. Using a screwdriver, pry the spring guide plate out of the
slots in the limit switch nuts (See Figure 5).T urn the gold
nut back to about the center of the threaded shaft.Do not
disconnect the wires from the limit switches.

4. Remove the load block assembly from the old chain.On
double-chained lifting motors detach the chain from the
chain support and pull it through the load block assembly.

5. Make a “C” shaped chain link by grinding through the end
link on the load end of the old chain.

6. Using the “C” link, attach the new chain to the load end of
the old chain.Be sure that the welds of the upstanding links
of the new chain will face outward from the load shea ve.
The end links must be oriented for attachment to the
dead-end shackle and the chain support (double-chained
only) without any twist in the chain.Note that the chain end
is attached to the shackle with a split link.

7. With the electrical cover off, connect the lifting motor to the
power supply. Be sure that the green ground wire is
properly grounded (See INSTALLATION, page 4).

8. Carefully jog the “UP” button and run the joined pieces of
chain into the lifting motor until about 15" of the new chain
comes out the other side.

9. DISCONNECT LIFTING MOTOR FROM POWER SUPPLY.

10. Remove the “C”link and the old chain. Remove the chain
stop from the old chain by prying off its retaining ring with a
flathead screwdriver .If attached, remove the old chain from
the shackle on the side of the lifting motor by opening up
the split link.

11. Attach the chain stop to the slack end of the new chain by
capturing the 12

th

link with the two stop halves positioned
with their tapered ends pointing towards the lifting motor .
Slide the sleeve over the halves and attach the retaining
ring. If you are not using a chain container, attach the slack
end of the new chain to the shackle on the side of the unit
using the split link.DO NOT allow twists in the chain.

12. Adjust the lower limit switch (See ADJUSTING LOWER
LIMIT, page 8).

13. Attach the load block on single-chained lifting motors using
a new load block scre w or pin (See Figure 19).On double­chained lifting motors, feed the chain through the load bloc k
(welds of the upstanding links will be in towards the
sheave) and fasten the end of the chain to the chain
support using a new chain support pin (See Figure 19).
Be sure there are no twists in the chain.

14. Adjust the upper limit switch (See ADJUSTING UPPER
LIMIT, page 8).

Chain Replacement with No Chain in Lifting
Motor

1. DISCONNECT LIFTING MOT OR FROM POWER SUPPLY

and move lifting motor to a work table.Remove the electrical
cover, electrical panel and the electric brake assembly.

2. Detach the chain stripper from the bottom of the lifting motor.

3. Insert the new chain between the load sheave and the chain

guide.Feed the chain into the lifting motor by manually
turning the brake hub.Allow about 15" of chain below the
lifting motor on the slack end.Be sure the welds of the
upstanding links are out away from the load shea ve and that
proper orientation is observed for attachment of the slack
end.Also be sure the load hook assembly (if already
attached to the chain) is toward the center of the lifting motor
or to your right looking from the transmission end.

4. Reinstall the chain stripper observing proper chain

alignment and avoiding any twist in the chain.

There are wires running through the lifting motor.
Carefully ease the lifting motor sections apart. Do not
jerk them apart.

Failure to follow proper lockout/tagout procedures
may present the danger of electrical shock.

TO AVOID INJURY:
Disconnect power and lockout/tagout disconnecting
means before removing cover or servicing this
equipment.

Failure to follow proper lockout/tagout procedures may
present the danger of electrical shock.

TO AVOID INJURY:
Disconnect power and lockout/tagout disconnecting
means before removing cover or servicing this
equipment.

Failure to follow proper lockout/tagout procedures
may present the danger of electrical shock.

TO AVOID INJURY:
Disconnect power and lockout/tagout disconnecting
means before removing cover or servicing this
equipment.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

5. Follow steps 11 through 14 in pre vious section, CHAIN
REPLACEMENT WITH CHAIN IN LIFTING MOTOR, to
complete the chain replacement procedure.

NOTE: Inspect chain guides and load sheave for wear,
replace as needed.

LIMIT SWITCH ADJUSTMENT

Refer to Figure 5.
IMPORTANT: Before placing lifting motor in operation, check

the limit switch adjustment.Limit switches are provided to
protect the lifting motor against damage resulting from
overtravel or to allow setting the hook tr avel within the
factory-set limits of travel.The standard UJC limit switch allows
for the maximum amount of lift, which is 134 ft on 1/2 ton
lifting motor models, 143 ft on the 1 ton models, and 71 ft
on the 2 ton models.

The limit switch adjusting nuts are color-coded gold for the
“UP” limit and silver for the “DOWN”limit. Movement of the limit
switch nuts toward or away from each other increases or
decreases the hook travel respectiv ely.

Adjusting Upper Limit (Gold Nut)

1. Suspend the lifting motor.For single-chained models
operate “UP” until there is a minimum clearance of 2" from
the lifting motor housing and the top of the block.Double­chained models require a minimum clearance of 1" from the
chain support to the top of the load block.

2. DISCONNECT LIFTING MOT OR FROM POWER SUPPLY
and remove the electrical cover.

3. With a screwdriver , pry the spring guide plate out of the slots
in the limit switch nuts.

4. Turn the slotted gold nut toward its limit switch until the
switch “clic ks”then turn two slots farther.Release the spring
guide plate and be sure it slips back into the slots in both
limit switch nuts.Do not disturb the silver slotted nut if it has
been set previously.

Adjusting Lower Limit (Silver Nut)

1. Suspend the lifting motor.Operate “DO WN”to a point where
the slack-end loop of the chain hangs down 6" or more from
the lifting motor housing (or the limit desired in any particular
application allowing the minimum 6").There should be a
minimum clearance of 1½" between the chain stop and the
bottom of the lifting motor.

2. DISCONNECT LIFTING MOT OR FROM POWER SUPPLY
and remove the electrical cover.

3. With a screwdriver , pry the spring guide plate out of the slots
in the limit switch nuts.

4. Turn the slotted silver nut toward its limit switch until the
switch “clic ks ,”then turn two slots farther. Release the spring
guide plate and be sure it slips back in the slots in both limit
switch nuts.Do not disturb the gold slotted nut if it has been
set previously.

Check Both Upper and Lower Limits

1. Connect the lifting motor to the power supply. Be sure the
green ground wire is properly grounded.

2. Check the direction of hook trav el (See INSTALLING THE
LIFTING MOT OR, page 5).

3. Carefully operate to upper limit and observe if it stops
automatically at desired level.Do not allow load block to run
into the lifting motor housing — this will damage the lifting
motor.Maintain a minimum clearance of 2" from the lifting
motor housing and the load block on single-chained models
and 1" from the chain support to the load block on double­chained models.

4. Carefully operate to lower limit and observe if it stops
automatically at the desired level.Do not allow slack-end
loop of chain to become taut against lifting motor housing.
This will damage the lifting motor.There should be a
minimum clearance of 1½" between the chain stop and the
lifting motor.

5. If upper and lower limits operate satisfactorily, lifting motor is
ready for use.If they are not as desired, repeat adjustment.

BRAKE

Properly adjusted, this brake will release promptly when
energized.It is capable of both smoothly stopping and securely
holding the rated capacity of the lifting motor.If the lifting motor
develops either undesirab le over-travel after a pushbutton is
released (this condition is most noticeable in the lowering
direction) or hesitates to lift the load promptly, the brake should
be adjusted.

Brake Adjustment

Refer to Figure 4.

1. DISCONNECT LIFTING MOT OR FROM POWER SUPPLY
and remove the electrical cover.

2. With reference to Figure 4, the gap between the brake
armature “A” and the field “B” should be checked.The
correct gap is 0.015".Adjustment should not be necessary
until gap reaches 0.040".

8

If the wires running to the limit switches are ever
disconnected for any purpose, be sure to replace
wires in accordance with the correct wiring diagram
(See Figures 7A - 7C).

Failure to follow proper lockout/tagout procedures may
present the danger of electrical shock.

TO AVOID INJURY:
Disconnect power and lockout/tagout disconnecting
means before removing cover or servicing this
equipment.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

Failure to follow proper lockout/tagout procedures may
present the danger of electrical shock.

TO AVOID INJURY:
Disconnect power and lockout/tagout disconnecting
means before removing cover or servicing this
equipment.

Failure to follow proper lockout/tagout procedures may
present the danger of electrical shock.

TO AVOID INJURY:
Disconnect power and lockout/tagout disconnecting
means before removing cover or servicing this
equipment.

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

9

3. Adjust gap by adjusting the 3 locknuts “F”and checking with
a feeler gauge to be sure gap is the same on both ends of
the solenoid.

4. Adjustment is now complete and the brake properly set.
Replace the electrical cover , reconnect the po w er supply,
and check lifting motor brake action.

WIRING

Refer to Figures 7A, 7B and 7C.
Single-phase units (115/230V) are wired for 230V and

230/460V -3 phase units are wired for 230V unless otherwise
specified when ordering. Lifting motors ordered with other
3-phase voltages are single-voltage only.Conversion of dual
voltage units can be done simply and quickly as f ollo ws .

1. DISCONNECT LIFTING MOT OR FROM POWER SUPPLY
and remove electrical cover.

2. On 230/460V -3 phase units converting to 460V requires
removing the C1, C2 and C3 jumpers as shown on the
wiring diagram 983CE2100-000.The motor leads T4, T5 and
T6 are then connected to the blocks as shown.Save the
three jumper wires for conv ersions bac k to 230V.One of the
transformer leads H2 (230V) and H4 (460V) is connected to
the contactor as shown depending on the voltage.

On 115/230V -1 phase units , connections are only modified
at the terminal blocks as shown on wiring diagram
981CE0100-000.

3. Make sure that all of the screw clamps on the contactor and
terminal blocks are tightened.Tug on the wires to ensure

they are securely connected.

4. Check the operation of the lifting motor, ensuring that the
direction of travel is correct (See INSTALLING LIFTING
MOT OR, page 5).

IMPORTANT: Always refer to the wiring diagram located on the
inside of the electrical cover or Figures 7A, 7B and 7C when
performing electrical repairs.Make sure all terminals are securely
fastened and check f or damaged insulation.It is also imperative
that the power circuit has conductors of adequate size.

LUBRICATION

Refer to Figure 9.
Proper lubrication is necessary to ensure a long and reliable

lifting motor life.Refer to the follo wing and the
RECOMMENDED LUBRICATION SCHEDULE for lubrication
points, type of lubricant, and frequency of lubrication.

Load Chain

Clean the load chain with acid-free solvent and coat with new
SAE 90 gear oil.Wipe excess oil to prev ent dripping.Never
apply grease to the chain.

Gearing

The gearbox of this lifting motor is filled at assembly with 1½
pints of SAE 90 EP gear oil.To check oil level, hang the unit b y
the suspension hook (the unit and decals will be upside down)
and remove the oil level check plug.With the lifting motor
hanging level, the gear oil should be e ven with the hole.

Bearings

All bearings except hook and idler sheave bearings are
lubricated at the factory and should not require additional
lubrication. Noisy or worn bearings should be replaced.

Limit Switch Shaft

Remove any dirt accumulation and spray with a general
purpose lubricant.

Hook Bearing

Apply a few drops of new SAE 30 gear or motor oil around the
edge of the bearing.

Idler Sheave Bearing (Bushing)

Disassemble load block and apply a light coat of NLGI#2
grease, or equivalent, inside of bearing.

NOTE:If lifting motor is used in an atmosphere containing
abrasive dust, frequent cleaning and oiling may be necessary.

LIFTING MOTOR REPAIRS

NOTE: If you do not have an experienced mechanic to do your
repair work, we recommend that you send your lifting motor to
an approved service station for repairs.Use authorized repair
parts only.

1. For major repairs or when the lifting motor is to be sectioned
in the suspension area, it will be necessary to move the
lifting motor to a workbench or table.

2. For repairs which can be done by removing the electrical
cover only, the lifting motor need not be moved.Lowering the
lifting motor to a convenient working level is desirable.

The following repair instructions will help you in understanding
repair procedures, when related to the Replacement Parts List
starting on page 16. For clarity these are broken down into areas.

Be sure the bottom of the armature does not bear
against the splined adapter “H”. As adjustments are
made, the built-in clearance will be reduced. When
this clearance is gone REPLACE BRAKE DISCS.
Minimum allowable disc thickness is .162". See
Figure 13 for further illustration.

Remove load and disconnect lifting motor from
power supply before starting to do any repairs or to
take any sections apart.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

Figure 4 — Brake Assembly

Gap

F

G

X

B

E

A

X

D

H

C

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

10

Electrical Parts and Brake

1. Refer to Figures 14 and 15.Remov e the co v er to access the
controls.Single-phase models also have a starting switch and
capacitor mounted on the motor as shown in Figure 14.The
terminal blocks and end clamps snap off of the rails on the
plate using a small screwdriver .DO NOT SLIDE THE END
CLAMPS.

The contactor can be slid off the rail, but must be snapped on.
Where the contactor fits the rail, one side has springs or pads
that apply pressure against the edge of the rail.By pressing
against that side at the base of the contactor, you can snap
the part on or off using a rotating action. Note the numbers
that label the terminals on the contactor and orient the part as
shown in Figures 7A-7C.Single-phase contactors have a
small jumper that is not present on the 3-phase (note the 3
and 5 terminals on the reversing contactor in Figure 7A).

2. Remove the electrical panel by removing the stand-off
screws (See Figures 14 & 15).The limit switch and brake are
now accessible as shown in Figure 5.

3. Remove the transf ormer bolted to the back of the panel plate
if it requires replacement.

4. Refer to Figure 13 to disassemble the brake.See BRAKE
ADJUSTMENT on page 8 to properly set the brake.

5. Refer to Figure 16 to disassemble the limit s witch.See
LIMIT SWITCH ADJUSTMENT on page 8 to properly set
the upper and lower limits of trav el.

6. Refer to Figure 17 for repairs on the pushb utton station.Also
refer to the wiring diagram inside the electrical cover or
Figures 7A, 7B and 7C for wiring instructions.

Motor

Refer to Figures 11 and 12.
The lifting motor’s motor is located on the opposite end to that

of the electrical parts, but the two are tied together with
electrical leads running through the housing.

1.If it is necessary to replace or repair the motor,
DISCONNECT THE LIFTING MOTOR FROM THE PO WER
SUPPLY and remove the electrical cover.

2. Loosen the screw clamps on the terminal blocks and
reversing contactor to disconnect the motor leads
(See Figures 14 and 15).

3. Remove the four motor mounting bolts attaching the motor
to the housing.It will come loose at the motor coupling.

4. Inspect the motor coupling, motor shaft and all the bearings.
Replace as necessary.

5. Install new or repaired motor according to the wiring diagram
located inside the electrical cover or Figures 7A, 7B and 7C.

Gearing

Use the Replacement Parts List for Basic Unit and Gearbox
Parts to help in repairs on gearing (See Figures 10 and 18). As
disassembly is extensive for gearing, disconnect the lifting
motor and move it to a workbench.

1. Remove electrical cover.

2. Remove electrical panel.

3. Remove brake assembly.

4. Drain oil from the gearbox.

5. Remove the four screws attaching the gearbox cover to the
gear housing and remove the gearbox co ver.

6. Inspect gears for broken or se verely worn teeth and inspect
all bearings.Replace as necessary.The overload slip clutch
is factory calibrated and must not be disassembled or
readjusted.

7. Reassemble in rev erse order of disassemb ly making sure
the gasket is in place and in good condition.Coat gasket
with Permatex

®

or other gasket cement.Extreme care should

be taken to avoid damage to oil seals .

8. Check all wire terminals to be sure they are properly seated
and in accordance with wiring diagram.Before placing
lifting motor back into service, check brake adjustment.

Failure to follow proper lockout/tagout procedures may
present the danger of electrical shock.

TO AVOID INJURY:
Disconnect power and lockout/tagout disconnecting
means before removing cover or servicing this
equipment.

Do not disassemble or readjust clutch, or replace with
a clutch assembly from another lifting motor. Doing so
will void the warranty and may create an unsafe
condition. If replacement is needed due to wear or
loss of adjustment, always use a new clutch assembly.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

Figure 5 — Brake and Limit Switch Assembly

Spring
Guide
Plate

Silver Nut
(Down)

Gold Nut
(Up)

Brake

Assembly

Limit Switch

Assembly

Figure 6 - Assembled Gearing

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

11

Suspension

Use the Parts List for Basic Unit and Chaining Parts to help in
repairs in this section (See Figures 10 and 19).The lifting
motor sections must be separated at the top hook line in order
to inspect the load sheave and chain guides.See CHAIN
REPLACEMENT WITH NO CHAIN IN LIFTING MOTOR,
page 7.

While this section is apart, check the following:

• Load sheave

• Chain, Chain guides and plates

• Chain support (on 2 ton models)

• Bearings
Replace parts as necessary including screws, lockwashers,
etc.When reassembled, recheck operation.

Figure 7A — Wiring Diagram for 115/230V - 1 Phase Models

Maximum Length of Power Cord in Feet

HP Voltage 14 AWG 12 AWG 10 AWG 8 AWG

(1-Phase)

Table 2 - Recommended Conductor Sizes for 1-Phase Lifting Motors

POWER CORD PRECAUTIONS WITH 1-PHASE LIFTING MOTORS

Electric lifting motors require a sufficient power supply. It is especially important with single-phase voltage to ensure that the
conductors running to the lifting motor from the power source are adequate in size to handle the power requirements of the
lifting motor.Inadequate power cables and branch circuits will cause low voltage, high amperage, damage to the lifting motor,
and potential fire hazards.Such problems can be minimized by using 230V power on 115/230V lifting motors.The following are
recommendations for the conductor gage size depending on the length, horsepower, and voltage.

1 115V 0 30 50 75

230V 120 190 310 490

1/2 115V 40 60 100 150

230V 200 330 520 810

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

12

Figure 7B — Wiring Diagram for 230/460V - 3 Phase Models

Figure 7C - Wiring Diagram for 208V, 380V, 415V and 575V - 3 Phase Models

*Factory supplied wiring diagrams will have numbers beginning with 985 for 575V, 987 for 208V, 988 for 380V

and 989 for 415V.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

13

1. Limit switch not operating 1. Check adjustment (See LIMIT SWITCH ADJUSTMENT , page 8).Check connections against wiring diagram.
Tighten loose connections or replace.

2. Brass limit switch nuts not moving on shaft 2. Check for stripped threads or bent nut guide.

3. Reversing contactor malfunctioning 3. Remove electrical cover and check rev ersing contactor.

Hook fails to stop at end of travel

1. Power f ailure in supply lines 1. Check circuit breakers, switches and connections in power supply lines .

2. Wrong voltage or frequency 2. Check voltage and frequency of power supply against the rating on the nameplate of the motor.

3. Improper connections in lifting motor or pushbutton 3. Check all connections at line connectors and on terminal block.Check terminal block on dual voltage lifting motors

station for proper voltage connections.

4. Brake does not release 4. Check connections to the solenoid coil.Check for open or short circuit.Check for proper adjustment (See BRAKE
ADJUSTMENT, page 8).

5. Faulty rev ersing contactor 5. Check coils for open or short circuit. Check all connections in control circuit.Check for burned contacts.
Replace as needed.

Lifting motor does not respond to pushbutton

1. Lifting motor overloaded 1. Reduce load to within rated capacity of lifting motor.

2. Brake not holding 2. Check brake adjustment (See BRAKE ADJUSTMENT, page 8). It may be necessary to replace discs.

Hook does not stop promptly

1. Three phase reversal 1. Reverse any two wires (except the green g round wire) at the po wer source (See INSTALLATION, page 4).

2. Improper connections 2. Check all connections against wiring diagram.

Hook moves in wrong direction

1. “DOWN”circuit open 1. Check circuit for loose connections.Check “DOWN”limit switch for malfunction.

2. Broken conductor in pushbutton cable 2. Check each conductor in the cable.If one is broken, replace entire cable.

3. Faulty rev ersing contactor 3. Check coils for open or short circuit. Check all connections in control circuit.Check for burned contacts.
Replace as needed.

Hook raises but will not lower

1. Lifting motor overloaded 1. Reduce load to within rated capacity of lifting motor.

2. Low voltage 2. Determine cause of low voltage and bring up to within plus or minus 10% of the voltage specified on the motor.
Measure voltage at the lifting motor reversing contactor while lifting a load.

3. “UP” circuit open 3. Check circuit for loose connections.Check “UP” limit switch for malfunction.

4. Broken conductor in pushbutton cable 4. Check each conductor in the cable.If one is broken, replace entire cable.

5. Faulty rev ersing contactor 5. Check coils for open or short circuit, check all connections in control circuit.Check for burned contacts.
Replace as needed.

6. Faulty capacitor (single phase lifting motor only) 6. Check starting capacitor on motor.Replace if necessary.

7. Worn overload limiting clutch 7. Replace overload clutch assembly.

8. Loose screw clamps 8. Ensure that screw clamps are tightened on the terminal blocks and reversing contactor.

Hook lowers but will not raise

––– Probable Cause –––

––– Remedy–––

1. Lifting motor overloaded 1. Reduce load within rated capacity of lifting motor.

2. Motor brake requires adjustment 2. Check motor brake adjustment (See BRAKE ADJUSTMENT, page 8).

3. Worn overload limiting clutch 3. Replace clutch.

4. Low voltage 4. Determine cause of low voltage and bring up to within plus or minus 10% of the voltage specified on the motor.
Measure voltage at the lifting motor reversing contactor while lifting a load.

5. Faulty SINPAC

®

starting switch or start capacitor 5. Replace faulty component.

(single phase lifting motors only)

Lifting motor hesitates to lift when energized

1. Excessive load 1. Reduce load to within rated capacity of lifting motor.

2. Low voltage 2. Determine cause of low voltage and bring up to within plus or minus 10% of the voltage specified on the motor.
Measure voltage at the lifting motor reversing contactor while lifting a load.

3. Extreme external heating 3. As the ambient temperature rises towards the 130°F limitation of the unit, frequency of the lifting motor operation
must be limited to avoid overheating of the motor. See ADVERSE ENVIRONMENTAL CONDITIONS, page 3.

4. Frequent starting or reversing 4. Excessive inching, jogging or reversing should be av oided since this type of operation will dr astically shorten the life
of motor, contactor and brake.

5. Brake dragging 5. Check brake adjustment (See BRAKE ADJUSTMENT, page 8).

Motor overheats

1. Lifting motor overloaded 1. Reduce load to within rated capacity of lifting motor.

2. Brake dragging 2. Check for proper brake adjustment or other defects .

3 Low voltage 3. Ensure that the voltage at the reversing contactor is within ±10% of the nominal voltage while lifting a load.

4. Overload limiting clutch intermittently slipping 4. Replace overload clutch assembly.

Lack of proper lifting speed

Failure to follow proper lockout/tagout procedures may
present the danger of electrical shock.

TO AVOID INJURY:
Disconnect power and lockout/tagout disconnecting
means before removing cover or servicing this
equipment.

TROUBLE SHOOTING

Always disconnect unit from the power supply system before
removing lifting motor covers or the back cover of control
station.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

14

INSPECTION AND MAINTENANCE CHECK LIST

ELECTRIC POWERED OVERHEAD CHAIN LIFTING MOTOR

Type of Lifting Motor ________________________________________________ Capacity (Tons) ____________________________________________
Location _________________________________________________________ Original Installation Date _____________________________________
Manufacturer______________________________________________________ Manufacturer’s Serial No. ____________________________________

Item Frequency of Inspection Possible Deficiencies OK Action

Frequent Periodic

Required

Daily Monthly 1-12 Mo.

Operating Controls * * * Any deficiency causing improper operation
Limit Switches

* * * 1. Any deficiency causing improper operation

2. Pitting or deterioration

Brake Mechanism

* * * 1. Slippage or excessive drift

2. Glazing, contamination or excessive wear

Hooks

* * * Excessive throat opening 15% bent or twisted more than 10

degrees, damaged hook latch, wear, chemical damage ,
worn hook bearing.To find cracks, (use dye penetrant,
magnetic or other suitable detection methods)

Suspension Lug (if used)

* * * Cracks, excessive w ear or other damage which may impair

the strength of the lug.To find cracks , (use dye penetrant,
magnetic particle or other suitable detection methods)

Chain

* * * Inadequate lubrication, excessive wear or stretch, cracked,

damaged or twisted links, corrosion or foreign substance

Hook and Suspension

* Cracks, bending, stripped threads

Lug Connections
Pins, Bearings, Bushings

* Excessive wear, corrosion, cracks, distortion

Shafts, Couplings
Nuts, Bolts, Rivets * Looseness, stripped and damaged threads, corrosion

Sheaves

* Distortion, cracks, and excessive wear.

Build-up of foreign substances

Housings, Load Block

* Cracks, distortion. Excessive wear, internal build-up of

foreign substances
Wiring and Terminals * Fraying, defective insulation
Lifting Motor Reversing

Contactor, other Electrical * Loose connections, burned or pitted contacts
Apparatus

Supporting Structure and Trolley Damage or wear which restricts ability to support
(if used) * imposed loads

Nameplates, Decals,

*

Missing, damaged or illegible

Warning Labels

NOTE: Refer to Maintenance and Inspection Sections of the Lifting Motor-Maintenance Manual for further details.

FREQUENCY OF INSPECTION

Frequent — Indicates items requiring inspection daily to monthly. Daily inspections may be performed by the operator if properly designated.
Periodic — Indicates items requiring inspection monthly to yearly. Inspections to be performed by or under the direction of a properly designated period. The exact

period of inspection will depend on frequency and type of usage. Determination of this period will be based on the user’s experience.It is recommended
that the user begin with a monthly inspection and extend the periods to quarterly, semi-annually or annually based on user’s monthly experience.

Figure 8A — Recommended Inspection and Maintenance Check List

NOTE: This inspection and maintenance check list is in accordance with our interpretation of the requirements of the Safety

Standard for Overhead Hoists ASME B30.16. It is, however, the ultimate responsibility of the employer/user to interpret and
adhere to the applicable requirements of this safety standard.

1. Brake needs adjustment 1. See BRAKE ADJUSTMENT, page 8.

2. Broken shading coil on brake frame 2. Replace shading coil or complete brake frame assembly.

Motor brake “buzz”(anytime lifting motor is running)

TROUBLE SHOOTING (Continued)

1. Brake needs adjustment 1. See BRAKE ADJUSTMENT, page 8.

2. Low voltage 2. Ensure that the voltage at the reversing contactor is within ±10% of the nominal voltage while lifting a load.

Motor brake noise or chatter (while starting lifting motor)

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

15

RECOMMENDED LUBRICATION SCHEDULE*

LIFTING MOT OR

FIGURE & COMPONENT TYPE OF LUBRICANT TYPE OF SERVICE AND
REFERENCE NO. (USE ONLY NEW LUBRICANT) FREQUENCY OF LUBRICATION

HEAVY NORMAL INFREQUENT

Figure 19

Load Chain SAE 90 gear oil Daily Weekly Monthly

Ref.No.8

Figure 18 Gearing

SAE 90 extreme pressure (EP) gear oil

At periodic inspection (See Figure 8A)

Figure 19
Ref.No.18 & 30

Load Hook Bearing SAE 30 gear or motor oil Weekly Monthly Yearly

NLGI #2 multi-purpose

Figure 19 Idler Sheave Bearing

lithium base grease At periodic inspection (See Figure 8A)

Ref.No.27 (Bushing) Assembly

INSPECTOR’S REPORT

ITEM REMARKS (LIST DEFICIENCIES AND RECOMMENDED ACTION)

Figure 8B — Recommended Inspector’s Report

NOTE: All bearings except hook and idler sheav e bearings are prelubricated and sealed.
(*) This lubrication schedule is based on a lifting motor operating in normal environment conditions.Lifting motors operating in

adverse atmospheres containing excessiv e heat, corrosive fumes or vapors, abrasive dust, etc., should be lubricated more
frequently.

Figure 9 — Recommended Lubrication Schedule

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

Inspector’s Date
Signature Inspected Approved by Date

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

16

Ref Description Part Qty Ref Description Part Qty
No. No. No. No.

1 Motor — 1

(See Figures 11 & 12)
2 Cover Screw H2976P 7
3 Trim Cover JM37 1
4 Transmission Housing JM3533 1
5 Transmission Case Gasket JM560 1
6 Transmission Cover JM34 1
7 Electrical Cover Gasket JM563 1
8 Electrical Cover JM36 1
9 Hook Retainer Screw H2709P 1

10 Top Hook Assembly with Latch

Swivel Hook (std.) 3M205A01S 1

†Rigid Hook 3M405A01S 1

11 Latch Kit Assembly 4X1305 1
12 Hook Retainer JM285 1
13A Swivel Hook Retainer JM49-2A 1
13B Swivel Hook Retainer JM49-2B 1
14 Coffing Decal 677J7R 2
15 Capacity Decal

1/2 ton JLC675R-05 1
1 ton JLC675R-10 1

2 ton JLC675R-20 1
16 UJC Decal 677JM8 2
17 Coffing Decal JM677R 2

Figure 10 - Basic Unit

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

3

12

14

7

2

10

1

4

6

8

15

5

11

2

9

16

Parts List for Basic Unit

(†) Optional

17

†10

13A

13B

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

17

Figure 11 - Motor, 3-Phase

Parts List for Motor, 3-Phase

1 Motor

1/2 hp, 230/460V-3Ph-60Hz 863JX2 1
1 hp, 230/460V-3Ph-60Hz 863JX4 1
1/2 hp, 190/380V-3Ph-50Hz 863JX2 1
1 hp, 190/380V-3Ph-50Hz 863JX4 1
1/2 hp, 208V-3Ph-60Hz 863JX10 1
1 hp, 208V-3Ph-60Hz 863JX12 1
1/2 hp, 415V-3Ph-50Hz 863JX26 1
1 hp, 415V-3Ph-50Hz 863JX28 1
1/2 hp, 575V-3Ph-60Hz 863JX6 1
1 hp, 575V-3Ph-60Hz 863JX8 1

2 Stator Assembly * 1
3 Rotor Assembly * 1
4 End Shield 35EP3100D15 1
5 Rear Bearing 500K3 1
6 Front Bearing 732012C 1
7 Shim Washer JL4301-01 1
8 Thru Bolt (1-Speed) HA3100A56 4
9 #10 Spring Lockwasher H4082P 4

Ref. Part
No. Description No. Qty.

Ref. Part
No. Description No. Qty.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

(‡) Refer to the motor nameplate for part number

voltage, full load amperage, horsepower, and
other motor information.

2

6

8

1

9

7

5

4

‡

3

* Not available as an individual part.

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

18

Figure 12 - Motor, 1-Phase

Parts List for Motor, 1-Phase

* Not available as an individual part.

1 Motor

1/2 hp, 115/230V-1Ph 861JX12 1

1 hp, 115/230V-1Ph 861JX14 1
2 Stator Assembly * 1
3 Rotor Assembly * 1
4 End Shield 35EP3100D15 1
5 Rear Bearing 500K3 1
6 Front Bearing 732012C 1
7 Shim Washer JL4301-01 1
8 Thru Bolt HA3100A56 4
9 #10 Spring Lockwasher H4082P 4

Ref. Part
No. Description No. Qty

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

(‡) Refer to the motor nameplate for part number

voltage, full load amperage, horsepower, and
other motor information.

2

6

8

1

9

7

5

4

‡

3

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

19

Parts List for Brake & Solenoid

1 Disc Brake Assembly*

1 hp,115 Volt 854JM1 1
1/2 hp, 115 Volt 854JM12 1
1 hp, 230 Volt 854JM2 1
1/2 hp, 230 Volt 854JM22 1
1 hp, 575 Volt 854JM4 1
1/2 hp, 575 Volt 854JM42 1
1 hp, 208 Volt 854JM5 1
1/2 hp, 208 Volt 854JM52 1
1 hp, 380 Volt 854JM6 1
1/2 hp, 380 Volt 854JM62 1
1 hp, 415 Volt 854JM7 1

1/2 hp, 415 Volt 854JM72 1
2 Plate & Stud Assembly 859JG1 1
3 Brake Disc

1/2 hp 581J1A 2

1 hp 581J1A 3
4 Brake Plate JF291 2
5 Plate & Armature Assembly JF858 1
6 Spring 344J6 3
7 Retainer JF710 1

8 Plate & Frame Assembly JF857 1
9 Brake Coil*

115V* 853JL1 1
230V* 853JL2 1
575V 853JL4 1
208V 853JL5 1
380V 853JL6 1

415V 853JL7 1
10 Locknut H3978 3
11 Adapter JM142 1
12 Screw H2976P 3
13 Retaining Ring H5501 2
14 Shading Coil 860J1 2

Shading Coil Adhesive H7812 1
15 Lockwasher H4134 3
16 Spacer 1/2 hp 141J2 3

Ref Description Part Qty Ref Description Part Qty
No. No. No. No.

* Note: 115/230V-1Phase models use 115V brake coils.

230/460V-3 Phase models use 230V brake coils.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

NOTE: Refer to wiring diagram inside

electrical cover of lifting motor or Figures
7A, 7B or 7C, when connecting any wires.

13

13

11

2

15

12

4

3

4

3

5

6

14

8

10

7

10

6

9

1

16

15

12

12

15

16

Figure 13 - Brake & Solenoid Parts

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

20

Figure 14 - Electrical Parts, 3-Phase

1 Transmission Cover JM34 1
2 Panel Plate 257UJ200 1
3 Reversing Contactor*

24V Coil 28860 1
115V Coil 24799 1

4 Transformer*

Pri.: 230/460V, Sec.: 24V 821J432 1
Pri.: 230/460V, Sec.: 115V 821J431 1
Pri.: 208V, Sec.: 24V 821J472 1
Pri.: 208V, Sec.: 115V 821J471 1
Pri.: 380V, Sec.: 24V 821J482 1
Pri.: 380V, Sec.: 115V 821J481 1
Pri.: 415V, Sec.: 24V 821J492 1
Pri.: 415V, Sec.: 115V 821J491 1
Pri.: 575V, Sec.: 24V 821J452 1
Pri.: 575V, Sec.: 115V 821J451 1

5 Terminal Block, 230/460V 909J10 3
6 End Plate, 230/460V 909J12 1
7 End Clamp 909J17 2
8 Power Pigtail

3-Phase (4 cond.) 953JM1 1

9 Control Pigtail 299JG4-2 1
10 Panel Standoff Spacer 200J4 3
11 1/4" Internal-tooth Lockwasher H4134 3
12 1/4-20UNC X 4" Screw H1027P 3
13 8-32UNC X 5/16" Screw H2751 2
14 #8 External-tooth Lockwasher H4158 2
15 1/4" Flatwasher H4002P 1
16 10-24UNC X 1/2" Screw H2970 2

Ref Description Part Qty Ref Description Part Qty
No. No. No. No.

Parts List for Electrical Parts, 3-Phase

* Coil voltage of the contactor and the secondary voltage of the transformer are the same. This is referred to as the

control voltage. Standard units are supplied with 115V Control.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

1

16

8

5

10

10

2

12

11

12

11

3

7

9

14

13

14

16

15

4

7

6

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

21

Figure 15 - Electrical Parts, 1-Phase

1 Transmission Cover JM34 1
2 Panel Plate 257JM200 1
3 Reversing Contactor*

1/2 hp:

24V Coil 28860 1
115V Coil 24799 1

1 hp:

24V Coil 24791 1
115V Coil 28905 1

4 Transformer*

Pri.: 115/230V, Sec.: 24V 821J412 1

Pri.: 115/230V, Sec.: 115V 821J411 1
5 Terminal Block 909J10 2
6 Terminal Block 909J14 4
7 End Plate 909J15 1
8 End Clamp 909J13 3
9 Marking Strip 909J11 1

10 Power Pigtail

115/230V, 1/2 hp (3 cond.) 951JM1 1

115/230V, 1 hp (3 cond.) 952JM1 1
11 Control Pigtail 299JG4-2 1
12 Panel Standoff 200J4 3
13 1/4" Internal-tooth Lockwasher H4134 3
14 1/4-20UNC X 4" Screw H1027P 3
15 8-32UNC X 5/16" Screw H2751 2
16 #8 External-tooth Lockwasher H4158 2
17 1/4" Flatwasher H4002P 1
18 10-24UNC X 1/2" Screw H2970 2
19 Can Mounting Bracket JM811 2
20 SINPAC

®

Starting Switch 839J3 1

21 Capacitor JL810-4 1

Ref Description Part Qty Ref Description Part Qty
No. No. No. No.

Parts List for Electrical Parts, 1-Phase

* Coil voltage of the contactor and the secondary voltage of the transformer are the same. This is referred to as the

control voltage. Standard units are supplied with 115V Control.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

1

7

19

8

14

13

4

9

8

5

6

16

11

17

18

20

21

10

18

13

14

2

3

8

15

16

12

12

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

22

Parts List for Limit Switch

1 Transmission Cover JM34 1
2 Limit Switch Assembly 944JG6 1

(Includes items 3-21)
3 Post 110J14 1
4 8-32UNC X 1/2" Screw H1210 1
5 #8 External-tooth Lockwasher H4158 3
6 8-32UNC X 1/4" Screw 854823 3
7 Limit Switch Shaft & Gear 117JG2 1
8 Limit Switch Nut (gold) SK6000-63W 1
9 Limit Switch Nut (silver) SK6000-63Z 1

10 Thrust Washer 255K16 1
11 Spring PB287 1

12 Bushing JF531-4 2
13 Switch 815J1 2
14 6-32UNC X 1" Screw H1402P 4
15 6-32UNC Elastic Locknut H3944 4
16 Mounting Plate 129J1 1
17 Frame and Guide Assembly 258JG7 1
18 End Plate 258J8 1
19 8-32UNC X 3/8" Screw H2741P 2
20 Drive Pinion 427J1 1
21 Retaining Ring H5520 1
22 10-24UNC X 3/8" Screw H2981P 2

Ref Description Part Qty Ref Description Part Qty
No. No. No. No.

Figure 16 - Limit Switch Parts

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

1

2

15

15

16

13

17

12

5

6

5

12

19

21

14

14

18

7

9

8

10

11

20

3

6

4

22

22

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

23

Figure 17 - Pushbutton Station (Pickle) - Optional Accessory

Parts List for Pushbutton Station (Pickle)

1 Pushbutton Station & Control Cable Assembly

6 ft Cable Length PB2100-6 1
11 ft Cable Length PB2100-11 1
16 ft Cable Length PB2100-16 1
Special Drop PB2100-S† 1

2 Pushbutton Station Assembly 36900R 1
3 Control Cable Assembly

6 ft Cable Length PBC2100-6 1
11 ft Cable Length PBC2100-11 1
16 ft Cable Length PBC2100-16 1
Special Drop PBC2100-S† 1

4 Enclosure 36998 1
5 Gasket 36986 1
6 Contact Assembly 36987 1

(Includes item 7)
7 Button Assembly 36988 1
8 Grommet 36989 1

* Hardware Kit 36939 1

(Includes items 9 - 16)

▲▲ Warning T ag 687K3W 1

Ref Description Part Qty Ref Description Part Qty
No. No. No. No.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

(†) Equal to cable length (pushbutton drop).
(▲▲ ) Not shown.

10

11

1

2

4

5

8

4

9

16

12

6

7

13

14

15

4

3

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

24

Figure 18 - Gearbox

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

11

1

4

2

12

9

3

10

8

7

21

24

22

21

23

26

29

5

15

11

31

16

13

11

14

14

16

17

6

24

**33

25

27

28

12

32

30

34

34

(**) NOTE: Orient output gear (32) with long boss

towards gear housing (2) on 1/2 ton &
under models and towards transmission

cover (3) on 1 & 2 ton models.

*18

*16

*19

*20

*18

(*) NOTE: This stage of gearing is not required on 32

FPM models.

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

25

1 Sheave Housing JM3533 1
2 Transmission Gasket JM560 1
3 Transmission Cover JM34 1

(Includes Oil Seals)
4 Spring Washer 360J1 1
5 O-ring H5605 1
6 Pressure Relief Fitting SK1912-21W 1
7 Chain Guide JM273 1
8 Oil Plug - Drain H6297 1
9 Oil Plug - Fill H6296 1

10 Oil Plug - Level H6295 1
11 Oil Seal 561K2 3
12 Screw, HWH Self-threading H2693P 5
13 Motor Coupling JM107 1
14 Bearing 500K33 2
15 Input Pinion

8 & 16 fpm JL400B 1

32 fpm JL400-1 1

16 Retaining Ring H5501 3
17 Brake Adapter JM142 1
18 Bearing for 8 & 16 fpm 500K34 2
19 High Speed Pinion for 8 & 16 fpm JL426 1
20 Intermediate Pinion

1/2 ton, 16 fpm JL402A 1

1 & 2 ton JL403A 1

21 Bearing 500K39 2
22 Output Pinion JL401 1
23 Overload Clutch Assembly

1/2 ton, 16 fpm 591JG16 1

1/2 ton, 32 fpm 591JG21 1

1 & 2 ton 591JG17 1

24 Retaining Ring H5503 2
25 Bearing 500K28 1
26 Bearing P003255 1
27 Spacer - Load Sheave JM127 1
28 Load Sheave-9/32" Chain JF16-3 1
29 Load Sheave Shaft JM132 1
30 Stub Shaft - Limit Switch Drive JM140 1
31 Oil Seal 011612800 1
32 Retaining Ring H5598 1
33 Output Gear JL421 1
34 Dowel Pin H5382 2

* Gear Oil H7642 1

½ pt

Ref. Part
No. Description No. Qty

Parts List for Gearbox

* Not Shown

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

26

Figure 19 - Chaining Parts

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

2-Ton Models

1 Ton & Under Models

1

4

5

3

2

6

9

18

8

19

15

14

26

24

15

28

32

12

29

7

25

31

16

14

30

23

22

24

7

21

13

17

13

20

10

11

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

27

1 Housing JM3533 1
2 Transmission Cover JM34 1
3 Electrical Cover JM36 1
4 Anchor Pin (2 ton only) JM111 1
5 Anchor (2 ton only) JM109 1
6 Chain Stripper JM254 1
7 Chain Stop Kit 75JG6K 1

(Kits include halves, sleeve and retaining ring)
8 Load Chain JL19-1 *
9 Attachment Pin JM18-1 1

10 Retaining Clip H5597 1
11 1/4-20UNC x 1¼"

Socket Head Cap Screw S49-77 1

12 Bottom Block Assembly

1 ton & Under 913JG3AS 1

13 1/4-20UNC x 1¼" S49-77 2

Socket Head Cap Screw

14 1/4" Internal-tooth

Lockwasher H4134 2

15 Load Block Frame 30J14 2
16 Load Block Pin 18J8 1
17 Slotted Hex Nut H3986P 1
18 Bearing JF510 1
19 Latch Kit 4X1304 1
20 Bottom Hook Assembly

with Latch for 1 Ton & Under 3JG20S 1

21 Bottom Block Assembly

for 2 Ton JF914-6 1
22 3/8-24 Hex Locknut H3964P 2
23 Load Block Screw H2403P 2
24 Load Block Frame JF30-1 2
25 Sheave Shaft Assembly JF917-1 1
26 Sheave Shaft JF122-1 1
27 Sheave & Bearing Assembly JF916 1
28 Roll Pin H5234 2
29 3/8-24 Hex Locknut H3991P 1
30 Bearing JF511 1
31 Latch Kit 4X1305 1
32 Bottom Hook Assembly

with Latch for 2 Ton 3KG1W 1

Parts List for Chaining Parts

Ref Description Part Qty Ref Description Part Qty
No. No. No. No.

Country Club Road
P.O.Box 779
Wadesboro, NC 28170 USA

TEL: [phone]
FAX: [phone]

* Replacement chain is sold by the foot. For single-chained models, add 2 ft to the lift for the total amount of feet.

For double-chained models, double the lift and add 3 ft.

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com

Alterations or modifications of equipment and use of
non-factory repair parts can lead to dangerous operation
and injury.

TO AVOID INJURY:

• Do not alter or modify equipment

• Do not use equipment to lift, support or otherwise
transport people

• Do not suspend unattended loads over people

E

very lifting motor is thoroughly inspected and
performance tested prior to shipment from the
factory. If any properly installed, maintained and
operated lifting motor as outlined in the applicable
accompanying Coffing Hoists manual develops a
performance problem due to defective materials or
workmanship as verified by Coffing Hoists, repair
or replacement of the lifting motor will be made to
the original purchaser without charge and the
lifting motor will be returned, transportation
prepaid.This warranty does not apply where
deterioration is caused by normal wear, abuse,

improper or inadequate power
supply, improper or inadequate maintenance,
eccentric or side loading, overloading, chemical or
abrasive actions, excessive heat, unauthorized
modifications or repairs, or use of non-Coffing
repair parts. EXCEPT AS STATED HEREIN,

COFFING HOISTS MAKES NO OTHER
WARRANTIES,EXPRESS OR IMPLIED,
INCLUDING WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.

© 2004 Coffing ®Hoists Printed in USA

®

WARRANTY

Coffing Hoists • Country Club Road • P.O.Box 779 •

Wadesboro, North Carolina 28170 USA

Tel: [phone] • Fax: [phone] • 704.694.6829

www.coffinghoists.com

For more information contact: Sievert Crane and Hoist, [phone], [e-mail], www.sievertcrane.com