oSIST prEN 15746-3:2016

SLOVENSKI STANDARD
01-februar-2016
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Railway applications - Track - Road-rail machines and associated equipment - Part 3:
Technical requirements for running
Bahnanwendungen - Oberbau - Zwei-Wege Maschinen und zugehörige Ausstattung -
Teil 3: Technische Anforderungen an das Fahren
Ta slovenski standard je istoveten z: prEN 15746-3
ICS:
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2015
ICS 93.100
English Version
Railway applications - Track - Road-rail machines and
associated equipment - Part 3: Technical requirements for
running
Bahnanwendungen - Oberbau - Zwei-Wege Maschinen
und zugehörige Ausstattung - Teil 3: Technische
Anforderungen an das Fahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 256.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15746-3:2015 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
1.1 General . 7
1.2 Validity of this European Standard . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Machine categorization . 8
4.1 Categories . 8
4.2 Type qualification for being in a train . 8
4.2.1 Mode of machine Category 8 . 8
4.2.2 Mode of machine Category 9 . 8
5 Railway specific safety requirements and/or measures . 9
5.1 General . 9
5.2 Rolling stock gauge . 9
5.2.1 Running gauge . 9
5.2.2 Road-rail machine in running mode . 10
5.2.3 Limits in lower area in running mode . 10
5.3 Interaction with the infrastructure . 11
5.3.1 General . 11
5.3.2 Stress induced into rail by main wheels . 11
5.3.3 Running safety equipment . 11
5.4 Safety against derailment . 12
5.4.1 General . 12
5.4.2 Safety against derailment for machines . 12
5.4.3 Dynamic tests on track for all machines . 12
5.4.4 Railhead clearing devices . 13
5.5 Stability and prevention of overturning . 13
5.6 Machine frame and structure . 13
5.6.1 Design of the machine frame. 13
5.6.2 Lifting and jacking points . 13
5.7 Inter machine couplings . 14
5.7.1 General . 14
5.7.2 Category 8 machines buffing and drawgear . 14
5.8 Running gear . 14
5.8.1 General . 14
5.8.2 Distribution of the wheelset forces in running mode . 15
5.8.3 Rail wheel, wheel profile — Running mode . 15
5.8.4 Rail wheel arrangements . 15
5.8.5 Load on rail wheels . 15
5.8.6 Operation of spring loaded points . 15
5.8.7 Ratio of wheel load on guiding wheels to road axle load . 15
5.9 Rail wheel suspension . 18
5.9.1 Rail wheel suspension systems . 18
5.9.2 Positively locked suspension . 18
5.9.3 Active suspension . 18
5.9.4 All suspension systems . 18
5.10 Braking . 18
5.10.1 General braking requirements . 18
5.10.2 Braking performance for machines in running mode . 18
5.11 Driving and working cabs and places . 19
5.12 Visibility and audibility of the machine . 19
5.12.1 General . 19
5.12.2 Marker lights in running mode . 19
5.12.3 Head lights . 20
5.12.4 Warning horns . 20
5.13 Operation of track equipment . 20
5.13.1 Operation of track circuits . 20
5.13.2 Operation of axle-counters and treadles . 20
5.13.3 Operation of treadles associated with level crossings . 20
5.13.4 Operation of hot axlebox and unreleased brake detectors . 21
5.13.5 Operation of other signalling equipment . 21
5.14 Fire protection . 21
5.14.1 Material requirements. 21
5.14.2 Specific measures for flammable liquids . 21
5.14.3 Portable fire extinguishers . 21
5.14.4 Fire detection systems . 21
5.14.5 Driver’s cab emergency exit . 21
5.15 Recovery . 21
5.16 Space between machines during coupling . 21
5.17 Doors . 22
5.18 Side windows . 22
5.19 Load conditions . 22
5.20 Minimum curve radius. 22
5.21 Lifeguards . 22
5.22 Environmental . 22
5.23 Equipotential bonding . 22
5.24 Driver's vigilance . 22
5.25 Speed indication . 22
5.26 Driver's indication. 22
5.27 Labelling in cab . 22
5.28 Remote controls . 22
5.29 Noise . 22
6 Marking and numbering of the machines — Machine identification number. 22
7 User information . 23
8 Verification of the conformity to the requirements and/or particular safety
measures . 25
Annex A (normative) Special national conditions . 26
Annex B (normative) Application of technical requirements to machine categories −
Category of machine . 32
Annex C (normative) Check list for conformity . 36
Annex D (informative) Certificates . 40
D.1 Certificate of type approval to prEN 15746-3:2015 . 40
D.2 Conformance control document for the technical requirements of
D.2.1 Machine identification . 41
D.2.2 General characteristics . 41
Annex E (informative) Structure of European Standards for track construction and
maintenance machines . 43
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2008/57/EC . 45
Bibliography . 52

European foreword
This document (prEN 15746-3:2015) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive 2008/57/EC.
For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of
this document.
EN 15746, Railway applications — Track — Road-rail machines and associated equipment, is currently
composed with the following parts:
— Part 1: Technical requirements for running and working;
— Part 2: General safety requirements;
— Part 3: Technical requirements for running [currently at Enquiry stage];
— Part 4: Technical requirements for running, travelling and working on urban rail [currently at
Enquiry stage].
Introduction
This European Standard was prepared to meet the essential requirements of EU Directives to facilitate
an open market for goods and services.
This document is the third of a series of four parts of the European Standard: Railway applications —
Track — Road-rail machines and associated equipment, dealing with railway specific risks of the road-
rail machines when running, travelling and working on railway infrastructures:
— Part 1 covers the technical requirements for the machines in working and travelling modes, and is
applicable for all machines.
— Part 2 covers the safety requirements for the machines in working and travelling modes; this is a
harmonized standard with the European Machinery Directive 2006/42/EC.
— Part 3 covers the essential requirements for the machines that have a running mode and run on
tracks within the scope of the Railway Directive 2007/58/EC; this is a harmonized standard with
the Railway Interoperability Directive 2008/57/EC and its associated Technical Specifications for
Interoperability (TSI).
— Part 4 covers the technical requirements for the machines that have a running mode on urban rail
and/or for machines intended to have working and travelling modes on urban rail.
Part 1 defines requirements for approval of the machine for use on the railway, depending on the
decision of the Infrastructure Manager or National rules the assessment of conformance could be by the
Infrastructure Manager concerned, by a third party assessor or declaration of conformity by the
manufacturer.
Part 2 defines requirements for the machine to be declared conformant by the manufacturer, except in
the case of machines classified under Annex 4 of the Machinery Directive, which require a conformity
check in conjunction with a notified body.
Part 3 defines requirements for running on the European railway network, assessment of conformity is
by a notified body as prescribed in the Railway Interoperability Directive.
Part 4 of defines requirements for approval of the machine for use on urban rail, depending on the
decision of the controller of the network or National rules the assessment of conformance could be by
the urban rail controller concerned, by a third party assessor or declaration of conformity by the
manufacturer.
The risks which exist in all mechanical, electrical, hydraulic, pneumatic and other components of
machines and which are dealt with in the relevant European Standards are not within the scope of this
European Standard. Where necessary, references are made to appropriate standards of this type.
1 Scope
1.1 General
This European Standard deals with the technical requirements to minimize the specific railway hazards
of self-propelled road-rail machines as defined in prEN 15746-1:2015, 3.5, henceforward referred to as
machines – when designed and intended for running on European railways within the scope of
European Directive 2007/58/EC.
The running mode is an option designed by the manufacturer which permits the use of the machine on a
specified railway infrastructure without the need for special operational rules.
NOTE The use of special track safety equipment (i.e. part of automatic train protection systems) does not
necessarily infer that the machine has a running mode, some infrastructure managers use such equipment as
means of protection for machines in travelling and/or working modes.
This European Standard does not apply to the following:
— the specific requirements established by the machine operator for the use of machines, which will
be the subject of negotiation between the manufacturer and the infrastructure manager;
— travelling and working both on and off rails;
— running on urban rail.
For a road-rail machine it is assumed that an EU road permissible host vehicle will offer an accepted
safety level for its designed basic functions before conversion. Unless explicitly stated otherwise in a
particular clause this specific aspect is not dealt with in this European Standard.
1.2 Validity of this European Standard
This European Standard applies to all machines which are within the scope of the Commission
Regulation (EU) No 1302/2014 for locomotives and passenger rolling stock.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 12663-1:2010+A1:2014, Railway applications — Structural requirements of railway vehicle bodies —
Part 1: Locomotives and passenger rolling stock (and alternative method for freight wagons)
EN 12663-2:2010, Railway applications — Structural requirements of railway vehicle bodies — Part 2:
Freight wagons
EN 14033-1:2011, Railway applications — Track — Railbound construction and maintenance
machines — Part 1: Technical requirements for running
EN 14033-2:2008+A1:2011, Railway applications — Track — Railbound construction and maintenance
machines — Part 2: Technical requirements for working
EN 14363:2005, Railway applications — Testing for the acceptance of running characteristics of railway
vehicles — Testing of running behaviour and stationary tests
EN 15153-1:2013, Railway applications — External visible and audible warning devices for trains —
Part 1: Head, marker and tail lamps
EN 15273-2:2013, Railway applications — Gauges — Part 2: Rolling stock gauge
EN 15437 (all parts), Railway applications — Axlebox condition monitoring — Interface and design
requirements
EN 15528, Railway applications — Line categories for managing the interface between load limits of
vehicles and infrastructure
prEN 15746-1:2015, Railway applications — Track — Road-rail machines and associated equipment —
Part 1: Technical requirements for travelling and working
prEN 15746-2:2015, Railway applications — Track — Road-rail machines and associated equipment —
Part 2: General safety requirements
EN 45545-2, Railway applications — Fire protection on railway vehicles — Part 2: Requirements for fire
behavior of materials and components
EN 50238-1:2003, Railway applications — Compatibility between rolling stock and train detection
systems — Part 1: General
EN 62625-1:2013, Electronic railway equipment — On board driving data recording system — Part 1:
System specification (IEC 62625-1:2013)
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010,
prEN 15746-1:2015 and prEN 15746-2:2015 apply.
4 Machine categorization
4.1 Categories
The machines are divided into four categories as shown in prEN 15746-1:2015, Clause 4.
4.2 Type qualification for being in a train
4.2.1 Mode of machine Category 8
Machines of Category 8 may be part of a train, but only under the conditions prescribed by the railway
undertaking of such a train and/or by the infrastructure manager.
4.2.2 Mode of machine Category 9
The machine has a running mode and shall be designed and intended to operate signalling and control
systems, and shall comply with this standard
NOTE 1 The acceptance procedure for access to the railway infrastructure is likely to be different for running
mode than for travelling and working modes.
NOTE 2 A compatibility assessment will need to be undertaken to ensure the signalling command and control
system fitted on the machine is compatible with the line to be run upon.
5 Railway specific safety requirements and/or measures
5.1 General
Machines shall comply with the safety requirements and/or protective measures in accordance with
prEN 15746-1:2015, Clauses 5 and 6, and this standard.
5.2 Rolling stock gauge
5.2.1 Running gauge
Except in the lower area, machines in running mode shall meet the dimensional requirements of
EN 15273-2. The critical points near the limits of the permissible kinematic gauge,
see EN 14033-1:2011, Annex C, shall be recorded in the technical documentation as shown in Clause 7,
b), 3), i).
In the lower area deviations are permitted for machines according to Category 9 B and Category 9 C and
equivalent machines belonging to Category 8 to accommodate road wheels, as shown in Figure 1. The
requirement is that the machine does not damage the infrastructure.
NOTE 1 The G1 Profile in EN 15273–2:2013, Figure A.4 meets the cross acceptance gauging requirements for
the majority of mainland European countries.
NOTE 2 National conditions may apply to this exceedance amount, see Annex A.
Dimensions in millimetres
Key
A rail level
B exceedance of gauge permitted for road-rail machines
C additional exceedance of gauge permitted for Category 9 C machines
D gauge according to EN 15273-2
Figure 1 — Limits in lower area
Machines intended to run on infrastructures with more restrictive gauges shall conform to the specific
rules of those infrastructures and the corresponding restrictions shall be indicated in the instruction
handbook.
No metallic part of the vehicle shall be permitted, under any circumstance of predictable use and wear,
to encroach into the area outside the lower vehicle gauge shown in EN 15273-2:2013, Figure A.6.
5.2.2 Road-rail machine in running mode
5.2.2.1 Stowing of moveable machine parts in running mode
When the machine is in the running mode any movable equipment which has the capacity to go outside
the gauge shall be capable of being stowed in a manner which prevents inadvertent or unintended
movement out of the gauge. All such moveable parts and assemblies forming part of the machine that
are unpacked in order to allow the machine to work in rail and non-rail mode shall, in their stowed
state, be secured by devices capable of resisting the foreseeable forces encountered during running,
which shall not rely upon a power source to retain the locking function. Moveable parts shall be held by
either:
— efficient locks. The visible positive locking components in running mode shall be painted in red. If
the locking mechanism is powered, the control of locking should preferably be possible from inside
the machine gauge;
or
— check valves on hydraulic systems, which shall prevent movement and be fail safe.
It shall be obvious to anyone checking the machine that these parts of the machine are locked in their
stowed position. Furthermore, for locking devices operable from the cab, either a red warning light
shall illuminate on the driver's desk to indicate if any moveable part of the machine is not locked, or a
green light shall indicate on the driver's desk that all moveable parts of the machine are locked.
5.2.2.2 Operating controls in running mode
When in running mode, all operating controls not related to running, including locking devices, shall be
deactivated.
5.2.3 Limits in lower area in running mode
5.2.3.1 Working limit in the lower area
Road-rail machines shall be designed and built so as not to damage or interfere with the fixed
infrastructure during work, e.g. axle counters, hot axle box, switch heaters or dragging brake detector
and signalling devices.
A machine or its constituent parts shall not be nearer than a specified safety distance from the
electrified parts of the conductor rail system given in prEN 15746-1:2015, Table 2.
5.2.3.2 Running limit in lower area
Category 9 B and 9 C machines are permitted to exceed the lower gauge area,
see EN 14033-2:2008+A1:2011, Annex D. When this is the case there shall be an operating restriction
stated on the type approval certificate prohibiting the passing of track mounted obstructions, e.g.
railway signalling and safety devices such as PZB magnets, hot box detectors.
The restriction for passing over tracks with such obstructions may be relieved if damage to the
obstructions by the machines' road wheels can reliably be prevented by use of road wheels of an
appropriate maximum width according to Figure 1.
NOTE Special national conditions may permit alternative arrangements, such as a lifting system mounted on
the machine as described in Annex A.
5.3 Interaction with the infrastructure
5.3.1 General
The wheels, supports and working tools shall not generate harmful stresses in the infrastructure
components, e.g. rail, fastenings, sleepers, ballast and formation.
Furthermore it is required to take into consideration the maximum rail load, the permissible bending of
the rail, the transverse forces on the sleeper fastenings, the surface pressure on the ballast as well the
load carrying ability of the formation. The manufacturer shall state the line Category according to
EN 15528 of the machine, as shown in 5.8.2 of this standard, and record in the instruction handbook,
see Clause 7, a), 4).
For the parameters of calculations, see EN 14033-2:2008+A1:2011, Annex K.
NOTE Some infrastructure managers could require seeing these calculations.
If the machines contain devices for levelling and/or lining of the track the maximum stresses generated
by these devices in the rail shall be stated in the instruction handbook, see Clause 7, a), 1).
5.3.2 Stress induced into rail by main wheels
The wheels referred to in this clause are the wheels used for the running mode of the machine.
If the configuration of these wheels in working and travelling modes of the machine is different from
the running mode, then the changes shall not cause derailment over the full range of the machine's
operational conditions.
The load from the main wheels in working mode shall not generate stresses in the rail higher than the
values in Table 1.
Table 1 — Stress limit in the rails
Ultimate tensile
strength of the
Bending stress Measure points
rail
%
Centre line of the top of the head and bottom of the 45
foot of the rail
a) Maximum permissible tensile
bending stress At the corner of the head of the rail 50
At the foot of the rail 60
b) Maximum permissible Head and foot of the rail 65
compressive bending stress
NOTE The values above allow for safety in particular conditions, e.g. track joints, non-standard sleeper
spacing, residual stresses in the rails.
5.3.3 Running safety equipment
5.3.3.1 Indication equipment
Machines with a running mode shall be fitted with special equipment specific for running safety on
specific infrastructures, see EN 14033-1:2011, Annex J.
The controls for this equipment shall be located in each driving cab.
5.3.3.2 Data recorder
Machines with a running mode shall carry at least one data recorder compliant with EN 62625-1:2013,
4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.3.1.3, 4.3.1.4 and 4.3.1.6, where required by the specific national safety
authority; see Annex A.
5.4 Safety against derailment
5.4.1 General
The aim of the following requirements is to provide the same level of confidence for safety against
derailment on the operating track as given by the acceptance procedures defined in EN 14363:2005,
4.1.and Clause 5. In addition the operating conditions on the working track are covered by 5.6.3.
5.4.2 Safety against derailment for machines
First of class machines shall follow the acceptance procedure according to EN 14363:2005:
— Subclause 4.1: the most adversely loaded condition when moving along the track in running mode
and where applicable in working condition shall be investigated;
— Clause 5 in running mode: when using EN 14363 the machine is described as a “special vehicle” due
to the low numbers of these machines. In some cases EN 14363 does not have specific
requirements for “special vehicles”, in such case the machines shall be assigned to a vehicle type
most applicable to their design.
The running characteristics of a machine or a machine type are permitted to be determined by running
tests or by reference to a similar type approved machine.
A “similar type approved machine” is a machine with similar configuration and running under similar
conditions, which can be used as a reference for the test exemption of a new machine, according to the
requirements of EN 14363 and the corresponding Table 1 of EN 14363:2005, Annex B.
Where machines are designed for use on working track they shall additionally comply, in the most
adversely loaded condition when moving along the track in working mode, with 5.6.3. Where a machine
is not designed for use on working track the limitation shall be detailed in the instruction handbook, see
Clause 7, a), 3), vii).
When running tests are required, they should be carried out by an authorized body or by the
manufacturer of the machine, if the manufacturer is recognized as a testing body by the accreditation
body.
5.4.3 Dynamic tests on track for all machines
After the tests shown in 5.4.2 have been successfully undertaken the first of class of machine shall have
actual dynamic tests on track undertaken in the most adversely loaded condition in the running,
travelling and working modes when moving along the track at its maximum speed. Where the
maximum speed is limited for specific track conditions this shall be recorded in the instruction
handbook, see Clause 7, a), 3), viii) to x) and detailed on the identification plate (Annex F). These tests
shall be carried out on track shown in a) to d):
a) the suspension is not detrimentally excited by a representative range of track conditions;
b) the machine is able to safely run through switches and crossings;
c) the machine is able to run over raised check rails (as detailed in 5.3);
d) the machine does not derail while going through switches, crossings and curves.
These tests should be carried out by an authorized body or by the manufacturer of the machine if the
manufacturer is recognized as a testing body by the authorized body.
When doing ∆Q/Q test the Q is the mean wheel load of the axle and the ∆Q is the maximum wheel
unloading due to the test conditions applied.
5.4.4 Railhead clearing devices
Machines shall be equipped with devices as described in prEN 15746-2:2015, 5.10.2 and/or 5.10.3.
5.5 Stability and prevention of overturning
Requirements for prevention of overturning and stability are shown in prEN 15746-2:2015, 5.11.
5.6 Machine frame and structure
5.6.1 Design of the machine frame
5.6.1.1 Requirements for Category 9 machines
The machine frame shall meet the requirements of prEN 15746-1:2015, 5.7.1.1.
5.6.1.2 Requirements for Category 8 machines
Category 8 machines, machine frame shall be able to withstand the following forces without any
permanent deformation when running in a train:
a) machines not permitted to be loose shunted or hump shunted shall be constructed to meet the
requirements of the load cases 4.1 to 4.5 of Category FII of EN 12663-1 or EN 12663-2 with the
following deviations:
1) Item 4.5, c) vertical load during lifting of the machine frame with the bogie to 2 g;
2) EN 12663-1:2010+A1:2014, Table 13 or EN 12663-2:2010, Table 10 to read acceleration in the
x direction ± 3 g;
3) machines which are restricted to be positioned only at the front or rear of a train are permitted
to be constructed to withstand towing and impact forces of 0,8 MN.
All other Category 8 machines shall be constructed to meet the requirements of the load cases 4.1 to 4.5
of Category FI of EN 12663-1 or EN 12663-2 with the following deviations:
b) Item 4.5, c) vertical load during lifting of the machine frame with the bogie to 2 g; and
c) EN 12663:2000, Table 12 to read acceleration in the x direction ± 3 g.
5.6.2 Lifting and jacking points
Lifting and jacking points shall be fitted capable of safely supporting the whole machine while being
lifted or jacked. It shall also be possible to lift or jack one end of the machine (including its running
gear) with the other end resting on the remaining running gear. The locations (and any restrictions of
use) of lifting and jacking points, where fitted, shall be detailed in the technical information, see
Clause 7, b), 3), viii).
In addition for Category 8 machines the following requirements apply:
a) The load cases specified in EN 12663-2 shall apply for lifting and jacking under workshop and
servicing operations.
b) For lifting cases associated only with rescue following derailment or other abnormal incident,
where some permanent deformation of the structure is acceptable, it is permissible to reduce the
safety factor in Tables 9 and 10 from 1,1 to 1,0. If a factor of 1,0 is used for a validation test, the
measured strains shall be extrapolated to demonstrate the conformance to the higher factor.
c) The location of the lifting and jacking points shall be defined by the customer's operational
requirements.
5.7 Inter machine couplings
5.7.1 General
Except as shown in 5.7.2 the couplings shall comply with prEN 15746-1:2015.
5.7.2 Category 8 machines buffing and drawgear
5.7.2.1 Couplings
Requirements shall be according to EN 14033-1:2011, 10.1.
5.7.2.2 Buffers
Requirements shall be according to EN 14033-1:2011, 10.2.
5.7.2.3 Space to be kept free at the end of the machine
Requirements shall be according to EN 14033-1:2011, 10.4.
5.8 Running gear
5.8.1 General
5.8.1.1 Category 8 machines
Category 8 machines shall meet the requirements of EN 14033-1:2011, 7.5.
5.8.1.2 Category 9 machines
The running gear structures shall be designed to ensure that no significant permanent deformation or
fatigue fracture occurs under all intended load cases.
The manufacturer shall either:
a) verify that the stress levels in each component of the running gear and their connection to the host
vehicle are within known limits for the material in use and that due account has been taken of the
dynamic stresses produced by running, travelling and working on the rails;
or
b) provide evidence of the stress levels in the running gear and their connection to the host vehicle
demonstrating that, via the safety record of machines having a comparable design and loading, that
the stress levels in the running gear are within known limits for the material in use.
5.8.2 Distribution of the wheelset forces in running mode
In running mode the position of the rail wheelsets and their loads shall comply with the requirements of
EN 15528. The “line Category” of machines in running mode shall be shown on the identification plate
as described in Clause 6.
5.8.3 Rail wheel, wheel profile — Running mode
Machines in running mode shall meet the requirements of EN 14033-1:2011, 7.5, prEN 15746-1:2015,
and 5.9.4.1 of this standard.
5.8.4 Rail wheel arrangements
The rail wheels shall be mounted in such a way as to give the machine safe rail guidance.
5.8.5 Load on rail wheels
The maximum static load per wheel in the working and non-working condition is given in Table 2.
Table 2 — Load on rail wheels
Wheel diameter Running mode load per rail
wheel
d Static
(mm) (t)
∅ ≥ 920 11,25
920 > ∅ ≥ 840 11,25
840 > ∅ ≥ 760 10,0
760 > ∅ ≥ 680 9,25
680 > ∅ ≥ 630 8,5
630 > ∅ ≥ 550 7,25
550 > ∅ ≥ 470 6,25
470 > ∅ ≥ 390 5,25
390 > ∅ ≥ 330 4,75
330 > ∅ Not permitted in running mode
d = worn rail wheel diameter limit (mm)

5.8.6 Operation of spring loaded points
Where the axle load is less than 5 t (wheel load of 2,5 t), the machine cannot be expected to operate
spring loaded points, etc. these limitations shall be specified in the instruction handbook,
see Clause 7, a), 3), v).
5.8.7 Ratio of wheel load on guiding wheels to road axle load
For Category 9 C machines (where road wheels share the load with the guiding rail wheels), the rail
wheel load shall be set up to ensure that the machine complies with the braking, resistance to
derailme
...