KITO HARRINGTON EM Series User manual

© HARRINGTON HOISTS, INC.
ALL RIGHTS RESERVED
OWNER’S MANUAL
ELECTRIC
CHAIN HOIST
EM and SEM
SERIES
250lbs through 1000lbs Capacity
EFFECTIVE: February 24, 2023
Code, Lot and Serial Number

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.

2
Table of Contents
Section Page Number
1.0 Important Information and Warnings ……………………….……………………………………….… 4
1.1 Terms and Summary
1.2 Warning Tags and Labels
2.0 Technical Information…………………………………………………………………………….……… 8
2.1 Specifications
2.2 Dimensions
2.3 ISO Classification
3.0 Preoperational Procedures ……………………………………………………………………………… 13
3.1 Gearbox
3.2 Chain
3.3 Mounting Location
3.4 Mounting the Hoist
3.5 Electrical Connections and Wiring Diagrams
3.6 Initial Inspection and Trial Operation
4.0 Operation …………………………………………………………………………………………………... 24
4.1 Introduction
4.2 Shall’s and Shall Not’s for Operation
4.3 Hoist Controls
5.0 Inspection …………………………………………………………………………………………………. 29
5.1 General
5.2 Inspection Classification
5.3 Preoperational Inspection
5.4 Frequent Inspection
5.5 Periodic Inspection
5.6 Occasionally Used Hoists

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Section Page Number
5.7 Inspection Records
5.8 Inspection Methods and Criteria
6.0 Maintenance & Handling …………………………………………………………………………………. 44
6.1 Lubrication – Load Chain, Hooks and Suspension
6.2 Lubrication – Gearbox
6.3 Motor Brake
6.4 Single-phase Starting Capacitor Replacement
6.5 Load Chain
6.6 Storage
6.7 Outdoor Installation
6.8 Operational Environment
7.0 Troubleshooting …………………………………………………………………………………………… 51
7.1 Operation and Error Codes
7.2 Troubleshooting Guide
8.0 Warranty …………………………………………………………………………………………………… 59
9.0 Parts List ……………………………………………………………………………………………………. 61

4
1.0 Important Information and Warnings
1.1 Terms and Summary
This manual provides important information for personnel involved with the installation, operation, and maintenance
of this product. Although you may be familiar with this or similar equipment, it is strongly recommended that you read
this manual before installing, operating, or maintaining the product.
Danger, Warning, Caution and Notice
Throughout this manual there are steps and procedures that can present hazardous situations. The following signal
words are used to identify the degree or level of hazard seriousness.
! DANGER
Danger indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury, and property damage.
! WARNING
Warning indicates an imminently hazardous situation which, if not avoided, could result in death or
serious injury, and property damage.
! CAUTION
Caution indicates a potentially hazardous situation which, if not avoided, may result minor or
moderate injury or property damage.
NOTICE
Notice is used to notify people of installation, operation, or maintenance information which is
important but not directly hazard-related.
!CAUTION
These general instructions deal with the normal installation, operation, and maintenance situations encountered with
the equipment described herein. The instructions should not be interpreted to anticipate every possible contingency
or to anticipate the final system, crane, or configuration that uses this equipment. For systems using the equipment
covered by this manual, the supplier and owner of the system are responsible for the system’s compliance with all
applicable industry standards, and with all applicable federal, state and local regulations/codes.
This manual includes instructions and parts information for a variety of hoist types. Therefore, all instructions and
parts information may not apply to any one type or size of specific hoist. Disregard those portions of the instructions
that do not apply.
Record your hoist’s Code, Lot, and Serial Number (see Section 9) on the front cover of this manual for identification
and future reference to avoid referring to the wrong manual for information or instructions on installation, operation,
inspection, maintenance, or parts.
Use only Harrington authorized replacement parts in the service and maintenance of this hoist.

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!WARNING
Equipment described herein is not designed for and MUST NOT be used for lifting, supporting, or transporting
people, or for lifting or supporting loads over people.
Equipment described herein should not be used in conjunction with other equipment unless necessary and/or
required safety devices applicable to the system, crane, or application are installed by the system designer, system
manufacturer, crane manufacturer, installer, or user.
Modifications to upgrade, rerate, or otherwise alter this equipment shall be authorized only by the original equipment
manufacturer.
Equipment described herein may be used in the design and manufacture of cranes or monorails. Additional
equipment or devices may be required for the crane and monorail to comply with applicable crane design and
safety standards. The crane designer, crane manufacturer, or user is responsible to furnish these additional items
for compliance. Refer to ANSI/ASME B30.17, “Cranes and Monorails (With Underhung Trolley or Bridge)”; and
ANSI/ASME B30.2 “Overhead Gantry Cranes (Top Running Bridge, Single or Multiple Girder, Top Running Trolley
Hoist)”.
If a below-the-hook lifting device or sling is used with a hoist, refer to ANSI/ASME B30.9, “Slings” or ANSI/ASME
B30.20, “Below-the-Hook Lifting Devices”.
Hoists and cranes, used to handle hot molten material may require additional equipment or devices. Refer to
ASTM E2349, “Standard Practice for Safety Requirements in Metal Casting Operations: Sand Preparation, Molding,
and Core Making; Melting and Pouring; and Cleaning and Finishing”.
Electrical equipment described herein is designed and built in compliance with Harrington's interpretation of
ANSI/NFPA 70, “National Electrical Code”. The system designer, system manufacturer, crane designer, crane
manufacturer, installer, or user is responsible to assure that the installation and associated wiring of these electrical
components is in compliance with ANSI/NFPA 70, and all applicable Federal, State and Local Codes.
Failure to read and comply with any one of the limitations noted herein can result in serious bodily injury or death,
and/or property damage.

6
!DANGER
HAZARDOUS VOLTAGES ARE PRESENT IN THE CONTROL BOX, OTHER ELECTRICAL COMPONENTS,
AND CONNECTIONS BETWEEN THESE COMPONENTS.
Before performing ANY mechanical or electrical maintenance on the equipment, de-energize (disconnect) the main
switch supplying power to the equipment; as well as lock and tag the main switch in the de-energized position.
Refer to ANSI/ASSP Z244.1, “The Control of Hazardous Energy Lockout, Tagout and Alternative Methods”.
The hoist units incorporate a Capacitor. Therefore, DO NOT perform ANY mechanical or electrical maintenance
within 5 minutes of powering down to allow time for the capacitor to discharge.
Only trained and competent personnel should inspect and repair this equipment.
NOTICE
It is the responsibility of the owner/user to install, inspect, test, maintain, and operate a hoist in accordance with
ANSI/ASME B30.16, “Overhead Underhung and Stationary Hoists”, OSHA Regulations and ANSI/NFPA 70,
National Electric Code. If the hoist is installed as part of a total lifting system, such as an overhead crane or
monorail, it is also the responsibility of the owner/user to comply with the applicable ANSI/ASME B30 volume that
addresses that type of equipment.
It is the responsibility of the owner/user to have all personnel that will install, inspect, test, maintain, and operate a
hoist read the contents of this manual and applicable portions of ANSI/ASME B30.16, “Overhead Underhung and
Stationary Hoists” OSHA Regulations and ANSI/NFPA 70, “National Electric Code”. If the hoist is installed as part
of a total lifting system, such as an overhead crane, the applicable ANSI/ASME B30 volume that addresses that
type of equipment must also be read by all personnel.
If the hoist owner/user requires additional information, “Assembly/Reassembly” manual, or if any information in the
manual is not clear, contact Harrington or the distributor of the hoist. Do not install, inspect, test, maintain, or
operate this hoist unless this information is fully understood.
A regular schedule of inspection of the hoist in accordance with the requirements of ANSI/ASME B30.16 should be
established and records maintained.

7
1.2 Warning Tags and Labels
The warning tag illustrated below in Figure 1-1 is supplied with each hoist shipped from the factory. If the tag is not
attached to your hoist’s pendant cord, order a tag from your dealer and install it. Read and obey all warnings attached to
this hoist. Tag is not shown actual size.
front back
Figure 1-1 Warning Tag Attached to Hoist

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2.0 Technical Information
2.1 Specifications
2.1.1 Product Code
2.1.2 EM and SEM Models - Harrington EM series hoists are available in both three phase and single phase
power. The EM model is the 3 phase version and the SEM model is the 1 phase version. Refer to
Nameplate SP to verify the model by referencing the product code and voltage requirements. (See
Figure 2-1)
Ensure the power supply is correct and that replacement parts are ordered for the correct model.
Figure 2-1 Identifying EM verses SEM Models

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2.1.3 Operating Conditions and Environment
Temperature range*:
-4° to +104°F (-20° to +40°C) – 3 phase
14° to +104°F (-10° to +40°C) – 1 phase
*When operating 32F (0C) or lower, perform lifting and lowering with no load for 1
minute before operation to warm up the hoist.
Humidity:
85% or less
Noise Level:
70 dB or less (A scale: measured 1 meter away from electric chain hoist)
Enclosure Rating:
IP65 for hoist and pendant
Supply Voltage:
See Table 2-1 below
Table 2-1 Supply Voltage
Hoist Model Product Category Motor
insulation
*Rated Voltage
50Hz
60Hz
EM
3-phase 230V class
B
200V
200-230V
3-phase 460V class
B
380-400V
380-460V
SEM
1-phase 115V class
B
-
115-120V
1-phase 230V class
B
-
220-230V
* All units are voltage specific
Control Voltage:
24VDC
Speed:
Single
Duty Classification:
ASME H4, ISO M5, FEM 2m
Intermittent Duty rating:
50% ED (ASME @ 65% capacity); 40% ED (FEM @ 100%capacity)
Max Number of starts per Hour:
300
Short Time Duty rating:
30min (Capacity 100%)
! WARNING
Do NOT use the electric chain hoist exceeding the short time ratings or the intermittent ratings. Do
NOT operate the electric chain hoist outside of its rated voltage.

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Table 2-2.1 Single Phase Hoist Specifications
Cap.
(lb)
Product
Code
Lifting Motor 1 Phase 60 Hz Load
Chain
D
iameter
(mm)
x
Chain Fall
Lines
Net
Weight
w/10’
lift
(lb)
Weight for
Additi
onal
One Foot
of Lift
(lb)
MAX Lift
Available
(ft)
Lifting
Speed
(ft/min)
Output
(Hp)
Rated Current*
(amps)
@115 –
120V **
@220 –
230V
500
SEM003L
12
0.22
4.6
2.3
4.0 x 1
30.9
0.24
120
1000
SEM005C
6
0.22
4.6
2.3
4.0 x 2
35.3
0.48
60
* All units are voltage specific
** 115V units supplied with a 15 Amp Plug. All other voltages will require a plug (not available through Harrington Hoists)
* All units are voltage specific
Table 2-2.2
Three Phase Hoist Specifications
Cap.
(lb)
Prod
uct
Code
Lifting Motor 3 Phase 60 Hz Lifting Motor 3 Phase 50 Hz Load
Chain
Diameter
(mm)
x
Chain Fall
Lines
Net
Weight
w/10’
lift
(lb)
Weig
ht for
Ad
ditional
One Foot
of Lift
(lb)
MAX Lift
Available
(ft)
Lifting
Speed
(ft/min)
Out
put
(HP)
Rated Current*
(amps) Lifting
Speed
(ft/min)
Output
(HP)
Rated Current*
(amps)
@200 -
230V
@380
- 460V @200V @380
- 400V
250
EM001S
32
0.34
1.4
0.7
26
0.34
1.4
0.6
4.0 x 1
30.9
0.24
120
500
EM003L
16
0.34
1.4
0.7
13
0.34
1.4
0.6
4.0 x 1
30.9
0.24
120
1000
EM005C
8
0.34
1.4
0.7
6.5
0.34
1.4
0.6
4.0 x 2
35.3
0.48
60

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2.2 Dimensions
Figure 2-2.1 EM001S, EM/SEM003L Dimensions
(See Table 2-3)
Figure 2-2.2 EM/SEM005C Hoist Dimensions
(See Table 2-3)
Table 2-3
Hoist Dimensions*
Product
Code
Headroom C
(in)
D
(in)
a
(in)
b
(in)
d
(in)
e
(in)
g
(in)
h
(in)
i
(in)
EM001S 11.6 12.4 11.5 7.9 5.7 5.7 0.9 2.8 3.1
EM003L
SEM003L 11.6 12.4 11.5 7.9 5.7 5.7 0.9 2.8 3.1
EM005C
SEM005C 13.6 16.1 11.5 9.4 5.7 5.7 0.9 2 3.9
*Dimensions are based on the standard lift of 10 feet.
Table 2-4 Hook Dimension*
T = Top Hook
B = Bottom Hook
Units = inch
Capacity Code Hook** a b c d e g
EM001S,
EM/SEM003L,
EM/SEM005C
B & C 0.8 0.5 0.7 0.5 1.4 1.4
*Refer to Section 5.8for inspection dimensions and limits.
**B=body hook, C=load chain hook

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2.3 ISO Classification
Table 2-5 Hoist classifications as determined by ISO / JIS
Loading
Status*
Service Limit
800
1600
3200
6300
12500
25000
Light
M4
M5
M6
Medium
M4
M5
M6
Heavy
M4
M5
M6
Ultra Heavy
M4
M5
M6
* Loading Status
Light (L < 50%): A case where the capacity is rarely applied. Usually the hoist is used with a light load. Medium
(50% ≦L < 63%): A case where the capacity is applied considerably frequently. Usually the hoist is used with a
medium load. Heavy (63% ≦L < 80%): A case where the capacity is applied considerably frequently. Usually the
hoist is used with a heavy load. Ultra heavy (80% ≦L): A case where the capacity is applied constantly.
As Indicated by Table 2-5:
State of Loading and Total Duration of Use are the factors used to determine the hoist classification that should be
used: M1, M2, M3, M4, M5, or M6. Cross referencing the two factors with one another will lead to a classification
choice in the chart.
•Example: A hoist that would be subjected frequently to the maximum load and, normally, to loads of heavy
magnitude (a “heavy” state of loading), that requires a life span of 1600 hours should be in classification
group M5.
•Example 2: A hoist that would be subjected very rarely to the maximum load and, normally, to light loads (a
“light” state of loading), that requires a life span of 6300 hours should be in classification group M4.
Duration of Use Calculation:
Service Limit (h): refer to Table 2-5.

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Third or fourth link
This must be a seated link.
3.0 Preoperational Procedures
3.1 Gearbox
3.1.1 The gearbox is filled with the correct amount of grease at the time of shipment.
3.1.2 Refer to Section 6.2 when replacing the gear grease.
3.2 Chain
3.2.1
! WARNING
Never operate the hoist with incorrect, missing, or damaged chain components.
Ensure that all chain components are in the correct location and properly installed as shown in Figure
3-1 and 3-2. The stopper shall be installed on the third or fourth link from the end of the chain (Note:
this must be a seated link). If the stopper position is incorrect, it could cause the load chain to break.
Figure 3-1 Chain Component Arrangement, No-load Side
*Tightening torque for the Stopper Bolt: 8.4 N-m (6.2 lb-ft)
Cushion Rubber
Stopper
Seated Link
Standing Link

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001, 003
005
Figure 3-2
Chain Component Arrangement Hook Side
*Tightening torque for the hook yoke bolts for 001 and 003: 8.4 N-m (6.2 lb-ft)
*Tightening torque for the hook yoke bolts for 005: 5.8 N-m (4.3 lb-ft)
3.2.2 Canvas or Plastic Chain Container – When installing the chain container, refer to Figure 3-3. Install a
Socket Bolt through one side of the Chain Container then through the Chain Container Bracket and the
other side of the Chain Container. For Canvas Chain Container, install the second Socket Bolt through
one side of the Chain Container then through Chain Container Bracket C and the other side of the
Chain Container. Screw the Nut on to the Socket Bolt and tighten it securely. The Socket Bolt must
protrude from the end face of the Nut by three threads or more. The free end of the chain is not
attached to the hoist body and the chain stopper is installed on the third or fourth seater link from the
free end (see Figure 3-1). To place the chain into the Chain Container, feed the free end of the chain
into the container. Take care to avoid twisting or tangling the chain. NEVER put all the chain into the
container at once.
Plastic Chain Container
Canvas Chain Container
Figure 3-3
Attachment of Chain Container to Hoist Body
Chain Container
Bracket
Chain Container
Bracket C
Nut
Chain Container
Socket Bolt

15
3.2.3
! WARNING
Each chain container indicates the diameter and the maximum length of the load
chain that can be stored in the container (refer to Figure 3-4). Be sure to check the label before
installation. The amount of chain the container must hold is equal to the lift on the hoist. Do NOT use a
chain container with a storage capacity less than the lift length on the hoist.
Figure 3-4 Chain Container Max Lift
3.2.4
! WARNING
Verify that the load chain is not twisted or tangled prior to operating the hoist.
Make sure the bottom hook on double fall models (EM005C/SEM005C) is not capsized. See Figures
3-5 and 3-6. Correct all chain irregularities before conducting the first hoist operation.
Figure 3-5
Twist in Load Chain – Double Fall Models

16
Figure 3-6
Capsized Hook and Chain –Double Fall Models
3.3 Mounting Location
3.3.1
! WARNING
Prior to mounting the hoist ensure that the suspension and the supporting
structure are adequate to support the hoist and its loads. If necessary consult a professional that is
qualified to evaluate the adequacy of the suspension location and its supporting structure.
3.3.2
NOTICE
See Section 6.7for outdoor installation considerations.
3.4 Mounting the Hoist
3.4.1 Manual Trolley - Follow instructions in Owner’s Manual provided with the trolley.
3.4.2 Hook Mounted to a Fixed Location - Attach the hoist’s top hook to the fixed suspension point.
3.4.3
! WARNING
Ensure that the fixed suspension point rests on the center of the hook’s saddle
and that the hook’s latch is engaged. Ensure that the Body Hook and body can swing freely. (Do NOT
restrain the Body Hook and body when in use.)
3.4.4 Multi-point (simultaneous operation) - It is the responsibility of the End User and/or Owner/Operator to
ensure the lifting operation does not result in any overload conditions, and the products are used within
the capabilities and limitations published within the Owner’s Manual. This includes situations where two
or more pieces of lifting equipment are used to simultaneously lift and/or traverse a single load. The
lifting systems design WHICH IS THE RESPONSIBILITY OF THE END USER AND/OR
OWNER/OPERATOR AND NOT KITO CORPORATION OR ANY OF ITS SUBSIDIARIES
INCLUDING BUT NOT LIMITED TO HARRINGTON HOISTS, INC., AND PEERLESS CHAIN
COMPANY shall be specified appropriately for the loadings, reasonably foreseeable misuse and be
capable of synchronized operation without creating an overload condition. Operator training shall be
conducted to ensure lifting is performed in a safe manner. Where appropriate a written lifting and
rigging plan should be applied to ensure safety.

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3.5 Electrical Connections and Wiring Diagrams
3.5.1
! WARNING
If the hoist was supplied without a Power Supply Cable. The installer must use a
cULus List power supply cable Type SJ, SJT, SO, SOO, SOOW, ST, STO or of a type at least equally
serviceable for the particular application. Rated 90C, 600V minimum. Refer to total AMP draw and
NEC® (ANSI/NFPA 70, “National Electric Code”) guidelines when sizing appropriate Power Supply
Cable gauge. Always consult with a qualified person when appropriate Power Supply Cable sizing is in
question.
3.5.2
! WARNING
Ensure that the phase and the voltage of the electric power supply is proper for
the hoist. If using a generator, ensure it is an inverter type.
3.5.3
! CAUTION
Short-circuit current rating, 5kA RMS symmetrical, 460V maximum.
3.5.4
! CAUTION
Do NOT apply electronic soft-start control or voltage varying controls to the hoist.
Use of such devices may cause the motor brake and other electrical components to malfunction.
3.5.5
! DANGER
Before proceeding, ensure that the electrical supply for the hoist has been de-
energized (disconnected). Lock out and tag out in accordance with ANSI/ASSP Z244.1 “The Control of
Hazardous Energy Lockout, Tagout and Alternative Methods”.
3.5.6
! DANGER
To avoid a shock hazard, Do NOT perform ANYmechanical or electrical
maintenance on the hoist within 5 minutes of de-energizing (disconnecting) the trolley or hoist. This
time allows the internal capacitor to safely discharge.
3.5.7
! DANGER
Do NOTremove power to the hoist during operation.
3.5.8 The Wiring Diagram is accessible from the QR code label located as shown in Figure 3-7. Wiring
Diagram for EM (Figure 3-8) or SEM (Figure 3-9) will be displayed.
Figure 3-7 QR Code Label

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Figure 3-8 3-Phase EM Wiring Diagram

19
Figure 3-9 Single-Phase SEM Wiring Diagram

20
3.5.9 The hoist is controlled by a pendant with two push buttons – one for raising and one for lowering and
includes a red emergency stop.The Power Cable and Pendant Cord are attached to the electric chain
hoist at shipping. When it is necessary to replace or remove/replace them, observe the following
procedures.
Removing the Power Cable and the Pendant Cord
Remove the controller cover and the 3 machine screws that hold the Cable Clamp (see Figure 3-10).
Three Phase
- Disconnect the connectors inside the hoist (see Figure 3-11).
Single Phase
- Disconnect the connectors inside the hoist (see Figure 3-11).
- Pull up the orange levers of the splicing connector attached on the Power Cable and disconnect all the
three lead wires (yellow and white or red) (see Figure 3-11).
Remove the 4 machine screws that are used for Holder Plate A and Holder Plate B, and shift the holder
plates away from the body onto the cables (see Figure 3-12).
! CAUTION
When Holder Plate B is removed from body, the Strain Relief Cable will come off.
Remove Power Cable and the Pendant Cord from the hoist body.
Installing the Power Cable and/or the Pendant Cord
Replacement Power Cable and Pendant Cord comes with the Holder Plate and packing already installed.
Insert the Power Cable (with 4P plug connector and Holder Plate A) into the top hole and the Pendant Cord
(with 4P socket connector and Holder Plate B) into the bottom hole. Secure the Holder Plate A/B with the 4
Pan Head Machine Screws (see Figure 3-12).
! CAUTION
When mounting Holder Plate B, ensure that the Strain Relief Cable is secured by the
Cord Support (see Figure 3-11).
Connect the Connectors to its appropriate mate inside the hoist (see Figure 3-13).
Secure the Cable Clamp with the Pan Head Machine Screws (see Figure 3-10) and reinstall the controller
cover.
If the hoist is hook mounted to a fixed support, ensure that the Power Cable is properly installed and supported
between the hoist and the electrical power supply.
If the host is installed on a manual trolley, then the Power Cable must be installed along the beam that the
trolley runs on. For curved beams a special cable suspension system will be needed, and this instruction does
not apply. For straight beams install the Power Cable as follows:
Install a guide wire system parallel to the beam.
For a manual trolley the guide wire should be positioned within3feet of the hoist body.
Use the Cable Trolleys supplied with the hoist to suspend the Power Supply Cable from the guide wire.
Space the Cable Trolleys every 5 feet.