1、INTERNATIONAL STANDARD ISO 10592 First edition 1994-10-01 Small traft - Hydraulic steering Systems Navires de plaisance - Appareils a gouverner hydrauliques Reference number ISO 10592:1994(E) ISO 10592:1994(E) Contents Page 1 Scope . . 1 2 Normative reference . 1 3 Definitions . . . 1 4 Outboard mot
2、or and inboard-Outdrive requirements . . . . . . . . . . . . . . . . 1 5 General requirements for hydraulic steering Systems . . . . . . . . . . . . . . 2 6 Hydraulic fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3、 . . . . . . . . . . . 3 7 Materials . . . . . . . . . . . . . . . . . . . *. . . . . . . . . . . . . . . . . . . . . . .“. . . . . . . . . . . . . . . . . . . . . . . m 3 8 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4、 . . . . . . . . . . . . . . . . . . . . . . . . 3 9 Test requirements . 3 IO Owners manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 11 Installers manual . . . . . . . . . . . . . . . . . . . . . . .
5、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 12 Designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 13 Marking of components . . 8 0 ISO
6、 1994 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronie or mechanical, including photocopying and microfilm, without Permission in writing from the publisher. International Organization for Standardizati
7、on Case Postale 56 l CH-121 1 Geneve 20 l Switzerland Printed in Switzerland ii 0 ISO ISO 10592:1994(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national Standards bodies (ISO member bodies). The work of preparing International Standards is norma
8、lly carried out through ISO technical committees. Esch member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take patt in th
9、e work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard req
10、uires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 10592 was prepared by Technical Committee ISOJTC 188, Small traft. 0 Ill This page intentionally left blank INTERNATIONAL STANDARD 0 ISO ISO 10592:1994(E) Small traft - Hydraulic steering Systems 1 Scope
11、This International Standard specifies requirements, test methods, manuals for both the owner and the installer, and the designation for hydraulic steering Systems and components from the wheel to the interface Point for outboard motor, inboard motor and inboard-Outdrive steering arrangements, used o
12、n small traft of up to 24 m length of hull. Accessories connecting output rams to tiller arms or equivalent are not included. 2 Normative reference The following Standard contains provisions which, through reference in this text, constitute provisions of this International Standard. At the time of p
13、ubli- cation, the edition indicated was valid. All Standards are subject to revision, and Parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most re- cent edition of the Standard indicated below. Mem- bers of IEC and ISO maintain
14、registers of currently valid International Standards. ISO 1024O:-J, Small traft - Owners manual. 3 Definitions For the purposes of this International Standard, the following definitions apply. 3.1 System maximum working pressure: Relief valve pressure setting. 3.2 System test pressure: Non-destructi
15、ve test pressure, at least one and half times the System maximum operating pressure. 3.3 minimum retained System Performance: Sys- tem capability after test(s) such that at least 90 % of the steering arc normally available to each side of the mid-Position may be obtained by exertion of no more than
16、27 Nm of torque at the helm, through the wheel or other normal control. NOTE 1 This criterion does not define steering System Performance while a boat is underway but is intended to provide quantitative Iimits for design and test purposes. 3.4 traft-mounted hydraulic System: System in which a cylind
17、er is secured to the boat. 3.5 motor-mounted hydraulic System: System in which a cylinder is secured to the engine. 3.6 drag link: Link in a motor-mounted steering System by which the linear forte of the output ram is transmitted to the motor steering arm. 4 Outboard motor and inboard-Outdrive requi
18、rements 4.1 Steering Stops on an outboard motor shall per- mit at least 30” of angular movement to either side. The design torque at the rudder stock shall be suf- ficient to put the helm from hard over to hard over (30” port to 30” starboard or vice versa) in not more than 30 s. 4.2 Outboard motors
19、 shall meet the applicable di- mensional requirements indicated in figures 1 and 2. 4.3 Necessary fittings to attach an outboard motor to the cylinder output rod shall be supplied with the outboard motor-. 1) To be published. ISO 10592:1994(E) 0 ISO 4.4 Outboard motors shall be designed so that, wit
20、h any combination of motor turn and tilt, there shall be no damaging interference between the motor, its ac- cessories, and both the traft-mounted and the motor-mounted System, if the motor is designed for both Systems. Appropriate written information and installation instructions shall be provided,
21、 clearly indi- cating the type of steering System(s) that should be used. 4.5 Outboard motors shall be designed so that the geometry ensures that a static forte of 3 300 N, ap- plied at the steering arm connection Point normal to the steering arm in its normal plane of Operation throughout the maxim
22、um steering arc, will not result in steering output ram loadings greater than those specified in 9.3.1. 4.6 The steering arm of an outboard motor shall be provided with a 3/8 in-24 UNF thread, or a plain hole of 9,65 mm to 9,9 mm diameter at the connection Point. 4.7 Inboard-Outdrives shall be desig
23、ned with proper geometry to ensure that a torque of 680 Nm applied on the Outdrive steering axis will not result in a steering component loading greater that that specified in 9.3.2. Dimensions in millimetres p* max. either side 0 *13 - 16 min. t-l -s-e- - _- _-e-w - - -5 Motor axis 7/8-14 UNF-2A th
24、read both ends +0,25 Tube int. 16 0 NOTE - The tube may be threaded equal length on both ends or reversible for port steering installation. Figure 1 - Motor-mounted steering tube Steering arm Dimensions in millimetres Steering axis Transom mating surface -J Figure 2 - Motor-mounted steering tilt axi
25、s 5 General requirements for hydraulic steering Systems 5.1 The components of hydraulic steering Systems shall be compatible with each other in Order to be used as a complete System. 5.2 All component Parts shall be supported inde- pendently of the connecting tubes. 5.3 Connections, fittings, oil fi
26、ll openings and air bleeders shall be accessible. 5.4 Components in the System shall be externally protected against corrosion. The complete hydraulic steering System shall be designed to withstand con- ditions of pressure, Vibration, shock and movement without failure or Ieakage. 5.5 Hydraulic Syst
27、ems with a non-functional autopilot shall be capable of Operation throughout an ambient temperature range of - 10 “C to + 60 “C and be capable of withstanding storage at - 30 “C to + 60 “C. 5.6 Fittings, hoses, piping and components shall be capable of withstanding the System test pressure without p
28、ermanent deformation, external Ieakage or other malfunction. 5.7 Materials used in hydraulic steering Systems shall be resistant to deterioration by liquids or com- pounds with which the material may come in contact under normal marine Service, e.g. grease, lubricating 0 ISO ISO 10592:4994(E) Oil, h
29、ydraulic fluid, common bilge solvents, salt and fresh water. 5.8 In vessels over 12,5 m in length, the hydraulic steering System shall be capable of putting the rudder over from 30” on one side to 30” on the other in not more than 30 s when the vessel is at maximum for- ward Service Speed with the r
30、udder totally sub- merged, and, if normally operated, shall be designed to prevent violent recoil of the steering-wheel. 6 Hydraulic fluid The type of hydraulic fluid to be used in a hydraulic steering System shall be specified by the manufac- turer of the steering System and shall be stated in the
31、owners manual. The hydraulic fluid shall be non-flammable or have a flash Point of 157 “C or over. 7 Materials In addition to the general the following requirements requirements shall be met. of clause 5 7.1 Components of different materials shall be galvanically compatible or separated by a galvani
32、c barrier. 7.2 Plastics and elastomers which may be exposed to sunlight shall be Chosen to resist degradation by ultraviolet radiation. 7.3 Plastics and elastomers which may be installed in engine compartments shall be Chosen to resist de- gradation by Saline atmospheres, fuel, Oil, heat and . fit-e
33、 . 8 Installation 8.1 The installation shall be carried.out following the directions of the manufacturers of the System. Hy- draulic lines shall be supported by Clips, Straps or other means to prevent chafing or Vibration darnage. The Clips, Straps or other devices shall be corrosion- resistant and
34、shall be designed to prevent cutting, abrading or darnage to the lines and shall be compat- ible with hydraulic line materials. A flexible section shall be installed between rigid pip- ing and cyIinder(s). 8.2 Hoses and piping shall be protected from con- tact with hot objects and from abrasion. The
35、re shall be no joints or connections directly above hot objects. 8.3 Hydraulic components shall be secured to the crafts structure considering the potential forces to be transmitted. Specifically, the mounting location for hydraulic cylinders shall provide a rigid attachment. 8.4 All threaded fasten
36、ers whose integrity affects safe Operation of the hydraulic steering System shall be provided with a locking means. 8.5 Steering wheels and helm shafts shall be selected to fit each other. Current configurations are shown in figure3. 8.6 Threaded fasteners whose integrity affects safe Operation of t
37、he steering System, and which are in- tended to be mounted or adjusted at the installation of the steering System in the traft and which may be expected to be disturbed by installation or adjustment procedures, shall be locked by locking devices refer- enced by instructions for correct assembly and
38、com- plying with the following requirements. 8.6.1 Loose lack-washers, fasteners with metallic distorting threads and adhesive are prohibited. 8.6.2 A locking device shall be so designed that its presence tan be determined by visual inspection or feit by a layman after installation. 9 Test requireme
39、nts The following tests are intended to establish the ac- ceptability of the design strength of hydraulic steering Systems as installed in a traft to the interface Point with the motor. 9.1 Static forte If the relief valve of the hydraulic steering System does not open earlier, the hydraulic steerin
40、g System shall withstand a static forte, in either direction, of 3 300 N applied at the connection hole of the cylinder output rod along the axis of the cylinder output rod without any loss in steering capability. 3 ISO 10592:1994(E) 0 ISO . d E Ki Co 2,44” 2,30 I I 2,34= I . o m Cu 1 I. 5 l 224 -o”
41、.l IO” .- E E 1 5 Dimensions in millimetres Wheel Level # 795 max. ,- R!? ao 0 Q 00 0 0 N I -4 ti Co s b SO,8 max. -1 a) Shaft 1) Clearance to shoulder, if any. b) Hub c) Steering shaft and wheel fit Figure 3 - Steering shafts and steering-wheel hubs 0 ISO 9.2 Tangential and axial forces Hydraulic s
42、teering Systems shall withstand a Single tangential forte of 450 N in either direction applied as appropriate: - at any Point on the steering-wheel rim, - at the centre-Point of any handgrip of an externa spoke steering-wheel, or - at the Point of maximum leverage on other steer ing devices, and a s
43、ubsequent Single axial forte of 670 N, in each direction, distributed over not more than 100 mm of the rim, spoke or handgrip. Upon application of the indicated forces, the following shall be verified. a) The minimum retained System Performance shall be maintained at any Position of the steering- wh
44、eel. b) The complete installation shall not show any lea ks. c) There shall be no fracture or deformation of the mounting surface or traft structure. 9.3 Component tests These tests are intended to establish minimum ac- ceptable design criteria for components of hydraulic steering Systems. 9.3.1 Esc
45、h hydraulic cylinder assembly (including traft-mounted System hardware) and integral fittings shall withstand an axial forte of 9 000 N in tension and compression, applied at the interface Point throughout its travel range, without severance of components or other malfunction. 9.3.2 A separate canti
46、lever forte of 900 N shall be applied at the centreline of the interface Point of the output rod end with at least 190 mm of the rod un- supported, without more than 1,25 mm of permanent deflection at the rod hole. ISO 10592:1994(E) Upon application of the indicated forte, the minimum retained Syste
47、m Performance shall be maintained at any location. 9.3.3 The output rod of a hydraulic cylinder shall withstand, for 50 000 reversals, a cyclic forte of 1 670 N applied as shown in figure4 without causing Separation of components or other malfunction. 9.4 Helm assembly tests 9.4.1 General Helm assem
48、blies shall incur no loss of operating function after the tests in 9.4.2 and 9.4.3, when equipped with the largest diameter and deepest dish steering-wheel for which the helm is rated. 9.4.2 Axial forte test A 670 N push-pull forte distributed over not more than 100 mm of - the steering-wheel rim, -
49、 the handgrip of an external spoke steering-wheel, - the handgrip at the Point of maximum leverage on other steering devices, shall be applied, at any Single location, in a direction parallel to the steering shaft axis for 10 cycles, each with a duration of 5 s. 9.4.3 Tangential forte test A 450 N forte in each direction shall be applied - at any Point on the steering-wheel rim, - at the centre Point of any handgrip of an external spoke steering-wheel, or - at the Point of maximum leverage on any other steering devices, at any Single location, tangential to the
