Starke STK User manual

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STK Electric Chain
Hoist
Models
STK0526 (½ ton)
STK1026 (1 ton)
STK2026 (2 ton)
STK3021 (3 ton)
STK5011 (5 ton)

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Table of Contents
Section
Preface ------------------------------------------------------------- 3
Safety Precautions & Warnings ------------------------------- 4
Basic Specifications --------------------------------------------- 5
Service Life --------------------------------------------------------- 6
Lifting Motor Usage ---------------------------------------------- 8
Pendant Options -------------------------------------------------- 9
Electrical & Chain Data --------------------------------------- 10
Mechanical Drawings & Data -------------------------------- 10
Hoist Drawings ---------------------------------------------------- 11
Safety Information ----------------------------------------------- 16
Assembly and Installation ------------------------------------- 17
Operation and Maintenance ---------------------------------- 18
Electrical Schematics ------------------------------------------- 22
Parts Lists ---------------------------------------------------------- 23
Trouble Shooting Guide ---------------------------------------- 36
Warranty Information -------------------------------------------- 38
SN________________________
STK Hoist Single Speed Owner’s Manual V1.2 5.2023

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1. Preface
Thank you for purchasing a Starke STK Hoist.
It is our intention that this document will help address any concerns you may have about the
installation, operation, and maintenance of your hoist. The standard hoist comes as a 460VAC / 3
phase unit, other configurations are optional. Please verify that the power supply you intend to hook
up to this hoist matches the specified power requirements of this hoist system.
Upon receiving your hoist / crane system and its components please securely store all these
components in a clean and dry space. Please ensure that all end truck, trolley, and hoist system
assemblies and associated electrical panels are all protected from moisture during shipping and
storage prior to and during installation. Following these instructions will help ensure a successful
installation of the system and maximize your productivity.
Thank You,
Starke America.
STARKEAMERICA.COM

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!!! IMPORTANT INFORMATION !!!
Please read, understand, and follow all aspects of this manual before the assembly and
installation of this hoist system. Please observe and follow all safety and warning information
during the operation of this system. Failure to do so may result in serious property damage,
personal injury and/or loss of life.
Safety Precautions:
Because of the heavy loads being transported by this system, the operator and those around the
serviceable area must be attentive to and aware of all potential risks involved with the operation of
this system. The operator must pay careful attention to and abide by the safety rules and warnings
listed below and found throughout this manual. All Safety Rules and Warnings must be followed.
Warnings:
1. Before operation, the operator must have a clear and unobstructed view of the entire service
area of this system.
2. For your safety DO NOT attach the electrical supply wires to this unit before the completion
of installation!
3. Before operation, inspect the hoist system to be sure it is in proper working condition. Check
for any possible obstacles and/or personnel in the service area of the hoist system.
4. While operating the hoist system, the operator must take caution to prevent a situation where
the changing of direction of travel and the resulting abrupt force may cause the load to swing.
This may cause an overload of the trolley and/or hoist and loss of the load.
5. DO NOT modify this unit in ANY way or operate the unit in an OVERLOADED OR
DAMAGED CONDITION. Any attempt to do so will put you, others, and property at serious
risk.
6. Repairs to this unit must be performed by qualified repair facility. Contact Starke America to
locate the nearest repair facility. See warranty information at the end of this manual.

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2. Specifications
2.1 Table of specifications
The specifications in the following table are applicable to all electric chain hoists.
Table 2.1
Design Relative Humidity % <= 85% RH
Design Temperature Rating 60F to 104F (normal operating range)
Protection Class Hoist IP 54
Pendant IP 54
Hoist Noise 81 (dB)
Note:
(1) If the working environmental conditions are outside of the recommended values in
the table, please consult your dealer for further guidance.
(2) The standard noise measurement is read at 1 meter from the hoist under normal
operation.

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2.2 Service Life
The service life expectancy and safe operation of the electric chain hoist can be realized only if it is
operated in accordance to the following. The European Materials Handling Federation, known as
‘FEM’ are a standard body for the material handling industry and are publishers of the FEM Hoist
Duty Classifications.
The design of this hoist conforms to the rating 1Am of FEM (Table 2.21)
DETERMINING THE FEM HOIST DUTY SERVICE CLASSIFICATION
When the load spectrum and the average daily
operating time of the hoist are identified, the duty
service classification of the hoist is obtained from
this table.
The average operation hours per day and total
operation hours are calculated based on load
distribution.
LOAD SPECTRUM
The load spectrum is the magnitude of the load over the duration of the hoist’s operation and the
calculated daily operating time. The basis for calculations is in accordance with FEM standards that a
hoist has a 10-year serviceable lifetime.
LIGHT USE
Light use would be defined as occasional full loads, usually light loads and small fixed loads (typically
a light duty workshop crane with single shift operation).

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MEDIUM USE
Medium use would be defined as occasional full loads, usually light loads and average fixed loads
(usually a medium duty workshop crane with single shift operation).
HEAVY USE Heavy use would be defined as repetitive full loads, usually average loads, and heavy
fixed loads (expected to be a heavy-duty crane with one or to shift options).
VERY HEAVY USE
Very Heavy use would be defined as usually almost full loads and very heavy fixed loads (this would
be two to three shift operations with magnets below the hooks).

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Table 2.2.22 Lifting motor usage data
2.3 Safety features
1. Magnetic slide brake is a unique design by which it releases when the motor stator is energized,
and the magnetic field pulls the brake hub from the friction cup. When power is removed it
immediately engages and halts the motors rotation.
2. The hook is forged of high tensile strength steel and heat treated to ensure maximum rigidity and
hardness. It is equipped with a spring-loaded safety latch for securing lifting rigging devices in place.
The lower hook assembly is supported within a ball bearing structure to allow easy rotation of the
load.
3. The control system includes high quality electrical contactors and is protected with a standard
phase monitoring system to ensure proper operation. This is to ensure that the motor is protected in
the case of a power loss of any leg(s) and proper rotational direction of the lifting motor.
4. Upper and lower lifting limit switch is standard equipment on our Starke hoists to prevent damage
to the chain and pulley system in the event of an operator error.
5. Control pendant options are all equipped with an emergency stop (Estop) button that is a manual
reset type. This is to immediately stop all functions of the hoist system in the event of an emergency,
it can also be used to secure the hoist system from unintentional activation.
Group
Intermitted operation
Continuous Operation
F.E.M
ISO
Cycles/h
Starts/h
ED(%)
Operation cycle/min
1 DM
M1
15
90
15
7.5
1 CM
M2
20
120
20
7.5
1 BM
M3
25
250
25
15
1
AM
M4
30
180
30
15
2M
MS
40
240
40
30
3M
M6
50
300
50
30
4M
M7
60
360
60
60
SM
MS
60
360
60
>60

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2.3.1 Pendant options
Pendant modes of motion are to be specified to dealer upon ordering hoist.
a. In a fixed position installation of the hoist a 1-motion pendant would be required.
b. If a hoist and motorized trolley is specified then a 2-motion pendant would be required.
c. If a hoist, motorized trolley, and motorized bridge are specified then a 3-motion pendant is
required.
d. Another option is a wireless pendant control system that again can be customized to your
application by your Starke America dealer.
1 Motion Pendant 2 Motion Pendant

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2.4 Electrical and Chain Information
2.5 Mechanical drawings & Data
Chain Falls Capacity(ton) H A B D E I J K L M N Chain Size mm
1 0.5 455 566 266 285 165 ᶲ35 27 ᶲ34 25 17 17 6.3
1 1 520 627 302 300 176 ᶲ42 32 ᶲ41 32 24 24 7.1
1 2 640 733 343 430 265 ᶲ48 38 ᶲ49 40 28 28 10
1 3 685 733 343 430 265 ᶲ59 48 ᶲ59 48 34 34 11.2
2 5 870 733 343 430 325 ᶲ59 48 ᶲ60 48 42 42 11.2
Capacity (Ton)
0.5
1
2
3
5
Chain Fall
1
1
1
1
2
Lifting Height
Std.
20’
Chain
Dimension (mm)
6.3
7.1
10.0
11.2
11.2
Lifting Speed
(FPM)
26
26
26
21
11
Supply Voltage
230/60/3
460/60/3
E.D. Rating (%)
40
40
40
40
40