EN 16241:2014

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Regulator zavornega vzvodjaBahnanwendungen - GestängestellerApplications ferroviaires - Régleur de jeu/timonerieRailway applications - Slack adjuster45.040Materiali in deli za železniško tehnikoMaterials and components for railway engineeringICS:Ta slovenski standard je istoveten z:EN 16241:2014SIST EN 16241:2014en,fr,de01-april-2014SIST EN 16241:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16241
February 2014 ICS 45.040 English Version
Railway applications - Slack adjuster
Applications ferroviaires - Régleur de timonerie
Bahnanwendungen - Gestängesteller This European Standard was approved by CEN on 16 November 2013.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
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COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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Foreword .4 1 Scope .5 2 Normative references .5 3 Terms and definitions .5 4 Design and manufacture .6 4.1 Requirements .6 4.1.1 General .6 4.1.2 Maintenance of block to tread clearance .6 4.1.3 Take up .6 4.1.4 Pay out .6 4.1.5 Shock and Vibration .6 4.1.6 Space envelope .7 4.1.7 Maximum load absorption .9 4.2 Service life .9 4.3 Ambient temperature . 10 4.4 Other environmental conditions . 10 4.4.1 General . 10 4.4.2 Humidity . 10 4.4.3 Rain . 10 4.4.4 Snow, ice and hail . 10 4.4.5 Solar radiation . 11 4.4.6 Resistance to pollution . 11 4.5 External appearance . 11 5 Materials . 11 6 Type test methods . 11 6.1 Sampling for type test . 11 6.2 Test requirements . 12 6.3 Test procedure . 12 6.3.1 Principle . 12 6.3.2 Check of physical and geometrical characteristics . 12 6.3.3 Operation . 12 6.3.4 Operation at extreme temperatures . 13 6.3.5 Maximum load absorption . 14 6.3.6 Life test . 14 6.4 Approval validity . 14 6.5 Test Report . 15 7 Routine test . 15 8 In-Service assessment . 15 9 Designation . 15 10 Identification and marking . 15 Annex A (informative)
In-service trial . 16 A.1 General . 16 A.2 Test set-up and sampling . 16 SIST EN 16241:2014

Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC . 17 Bibliography . 21
Figure 1 4.1.3 Take up Slack adjusters shall take up excessive block to tread clearance in a minimum number of cycles of the brake (application and release), but this shall not be more than 3 cycles. This requirement is tested in accordance with 6.3.3.2. 4.1.4 Pay out Slack adjusters shall pay out, if the block to tread clearance is insufficient, to restore the correct block to tread clearance. This situation may come about due to a change in the vehicles laden state. This pay out shall not increase the distance between brake block and wheel when releasing after the first brake application when the insufficient block to tread clearance is detected, but only after the release following the second brake application if the distance remains insufficient. This is to prevent the clearance being increased due to the presence of ice, snow or other foreign bodies. This requirement is tested in accordance with 6.3.3.3. 4.1.5 Shock and Vibration 4.1.5.1 Shock Slack adjusters shall not take up or pay out when subjected to longitudinal shocks in accordance with EN 61373 for body mounted equipment with one level of suspension, category 2. This requirement is tested in accordance with 6.3.3.4.1. SIST EN 16241:2014

Key * Length adjusted to the vehicle C Measurement mark G 36 mm pin diameter Pins shall be a case hardened steel where Rm is greater or equal to 370 N/mm2 NOTE Rm is the tensile strength of the steel. K 83 mm Slack Adjuster type 1 2 L Length 2 325 mm 1 875 mm M Take up 580 mm 440 mm 1 Alternative attachment arrangements for the brake rigging (XX) Figures in brackets ( ) are nominal values. Figure 2 — Space envelope – loads (forces) up to 75 kN SIST EN 16241:2014

Key * Length adjusted to the vehicle C Measurement mark G 40 mm pin diameter Pins shall be a case hardened steel where Rm is greater or equal to 370 N/mm2 NOTE Rm is the tensile strength of the steel. K 83 mm Slack Adjuster type 1 2 3 L Length 2 390 mm 1 940 mm 1 640 mm M Take up 580 mm 440 mm 280 mm 1 Alternative attachment arrangements for the brake rigging (XX) Figures in brackets ( ) are nominal values. Figure 3 — Space envelope – loads (forces) from 75 kN to 130 kN 4.1.7 Maximum load absorption The slack adjuster shall not absorb more than 2 kN of the brake application force. This requirement is tested in accordance with 6.3.5. 4.2 Service life A life test shall be carried out on the slack adjuster to demonstrate it is fit for service on railway vehicles and to verify the maintenance requirements for the operational design life so these can be taken into account for the actual service life. This life test shall be carried out at loads between 35 kN and the maximum rated load, spanning the full range of adjustment. This requirement is tested in accordance with 6.3.6. SIST EN 16241:2014
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