ISO 4857:2023

INTERNATIONAL ISO
STANDARD 4857
First edition
2023-05
Ships and marine technology —
Test procedures and methods for
windlasses and winches
Reference number
© ISO 2023
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Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 1
5 Test procedure .2
5.1 General . 2
5.2 Pre-test check . 2
5.3 No-load test. 3
5.4 Drum or warping end load test . 3
5.5 Drum holding load test . 3
5.6 Cable-lifter load test . 4
5.7 Cable-lifter over-load test . 4
5.8 Cable-lifter brake load test . 4
6 Test method . 4
6.1 No-load test. 4
6.2 Drum or warping end load test . 5
6.3 Drum brake load test . 5
6.4 Cable-lifter load test . 5
6.5 Cable-lifter over-load test . 5
6.6 Cable-lifter brake load test . 5
7 Test report . 5
Bibliography . 7
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Foreword
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INTERNATIONAL STANDARD ISO 4857:2023(E)
Ships and marine technology — Test procedures and
methods for windlasses and winches
1 Scope
This document specifies procedures and methods for the factory acceptance test for the complete set of
windlass and winch system, which is performed after the equipment is assembled.
The test methods and procedures specified in this document apply to windlasses and winches.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 3730, Shipbuilding and marine structures — Mooring winches
ISO 3828, Shipbuilding and marine structures — Deck machinery — Vocabulary and symbols
ISO 4568, Ships and marine technology — Sea-going vessels — Windlasses and anchor capstans
ISO 6482, Shipbuilding — Deck machinery — Warping end profiles
3 Terms and definitions
For the purpose of this document, the terms and definitions given in ISO 3828 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
windlass and winch
general term for mechanical installations and devices used for anchor handling and mooring
Note 1 to entry: to entry Windlass and winch includes windlass, anchor capstan, mooring winch, mooring
capstan, combined windlass/mooring winch and windlass/mooring capstan.
4 General requirements
4.1 The tested windlass and winch shall be assembled completely. All the auxiliaries of the complete
set of the system shall be tested.
4.2 The relevant performance and parameters of the windlass and winch shall comply with the
relevant requirements of ISO 3730, ISO 4568 and ISO 6482.
4.3 An alternative power supply that meets the test requirements can be used instead of the original
power supply for testing, as agreed by both parties.
4.4 Windlass and winch tests shall be conducted in strict accordance with the sequence specified in
the procedures.
4.5 Irrelevant test items of specific products can be deleted according to the function and
configuration of the products.
4.6 The windlass and winch shall be fastened to the test bench, and the precision of inst
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