ISO 11525-2:2015

INTERNATIONAL ISO
STANDARD 11525-2
First edition
2015-10-15
Rough-terrain trucks — User
requirements —
Part 2:
Slewing variable-reach trucks
Chariots tout-terrain — Exigences pour l’utilisateur —
Partie 2: Chariots rotatifs à portée variable
Reference number
ISO 11525-2:2015(E)
©
ISO 2015

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ISO 11525-2:2015(E)

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ISO 11525-2:2015(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General safety requirements . 3
4.1 Principles . 3
4.2 Operator’s manual. 3
4.3 Modifications or alterations . 3
4.4 Manufacturer’s bulletins. 4
4.5 Operator qualifications . 4
4.6 Operator’s responsibility for training . 4
4.7 Operator training . 4
4.7.1 Operator training programme . 4
4.7.2 Testing, retraining and enforcement . 6
4.8 Inspection and maintenance . 8
4.8.1 General. 8
4.8.2 Preparation for inspection or repair . 8
4.8.3 Performance checks . 8
4.8.4 Inspection and maintenance precautions . 9
4.8.5 Inspection and maintenance requirements. 9
4.9 Hazardous environments .10
5 Operating safety rules and precautions .10
5.1 Operator’s responsibility for safety .10
5.2 Visual inspection and functional tests .11
5.3 General operating instructions .12
5.4 Travelling .13
5.5 Picking and placing loads.14
5.6 Using attachments .15
Bibliography .17
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ISO 11525-2:2015(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 normally carried out
through ISO technical committees. Each 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 part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 110, Industrial trucks, Subcommittee SC 4,
Rough-terrain trucks.
ISO 11525 consists of the following parts, under the general title Rough-terrain trucks — User
requirements:
— Part 1: General requirements
— Part 2: Slewing variable-reach trucks
— Part 4: Additional requirements for variable-reach trucks handling freely suspended loads
— Part 5: Interface between rough-terrain truck and integrated personnel work platform
User requirements for lorry-mounted trucks are to form the subject of a future part 2 of ISO 20297.
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ISO 11525-2:2015(E)

Introduction
This International Standard is one of a set of standards produced by ISO/TC 110/SC 4 as part of its
programme of work regarding standardization of terminology, general safety, performance and user
requirements for rough-terrain trucks.
Slewing variable-reach trucks (as defined in ISO 10896-2) are known by a variety of terms including
“rotating telehandlers” and “multi-purpose rotating handlers”.
For unique applications, these trucks can be equipped with a variety of attachments (e.g. jibs, winches,
jibs with winch and clamp, mowers, sweepers).
Additional user requirements for variable-reach trucks handling freely suspended loads are covered
in ISO 11525-4.
Users need to take into consideration that certain features and characteristics of these trucks are
unique and require specific methods for use and training of operators. In addition to general user
requirements, these specific methods are also covered in this part of ISO 11525.
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INTERNATIONAL STANDARD ISO 11525-2:2015(E)
Rough-terrain trucks — User requirements —
Part 2:
Slewing variable-reach trucks
1 Scope
This part of ISO 11525 gives specific requirements relating to the use of slewing variable-reach rough-
terrain trucks (hereafter referred to as trucks), as defined in ISO 10896-2.
It is intended to achieve the following:
a) the prevention of personal injuries, property damage and accidents;
b) the establishment of criteria for inspection, maintenance, operation and training.
For general user requirements for (non-slewing) variable-reach trucks, refer to ISO 11525-1.
For additional user requirements for variable-reach trucks handling freely suspended loads, refer
to ISO 11525-4.
National or local requirements can apply, which could be more stringent.
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.
ISO 5057, Industrial trucks — Inspection and repair of fork arms in service on fork-lift trucks
ISO 11525-1, Rough-terrain trucks — User requirements — Part 1: General requirements
ISO 10896-2, Rough-terrain trucks — Safety requirements and verification — Part 2: Slewing variable-
reach trucks
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 11525-1 and ISO 10896-2 and
the following apply.
3.1
authorized person
person approved or assigned to perform a specific task or tasks at a specific location or locations at a
worksite
3.2
examiner
competent person (3.7) who tests the competency of the trainee (3.11)
3.3
maintenance
act of upkeep, including inspection, lubrication, cleaning, adjustment and scheduled parts replacement
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3.4
modification
change to the truck that affects its operation (3.5), stability (3.9), capacity or safety
3.5
operation
performance of functions of a truck within the scope of its specifications and in accordance with the
manufacturer’s instructions, work rules and applicable governmental regulations
3.6
operator
competent (3.7) and authorized person (3.1) who controls the operation (3.5) of the truck
3.7
competent person
person who has acquired, through training, qualification, experience or a combination of these, the
knowledge and skill enabling that person to correctly perform the required tasks
3.8
attachment bracket
quick coupler
device fitted at the end of the boom to facilitate the quick interchange of attachments
3.9
stability
state of the truck in which it does not overturn, described technically as the state in which the sum
of the moments acting to overturn the slewing truck is less than the sum of the moments tending to
resist overturning
Note 1 to entry: Conditions that can affect stability include slewing of the upper structure, ground and floor
conditions, gradient, wind, speed and loading (trucks equipped with attachments behave as partially loaded
trucks even when operated without a load on the attachment), dynamic and static forces, incorrect tyre inflation
and the judgment exercised by the operator (3.6).
3.10
trainer
competent person (3.7) who conducts the training of the truck operator (3.6)
3.11
trainee
person who is being trained to become a truck operator (3.6)
3.12
user
person or entity responsible for assigning an operator (3.6) to operate a truck and specifying the tasks
to be performed
Note 1 to entry: Depending on national or other regulations, or local practice, this term can refer to one or more
of the following entities: owner, employer, custodian, dealer or entity placing the product on the market.
3.13
responsible entity
person or entity with responsibility for the design, specification, procurement, fabrication, manufacture,
assembly, provision of information and testing of a slewing truck
Note 1 to entry: Depending on national or other regulations, or local practice, this term can refer to one or
more of the following entities: manufacturer, installer, custodian, dealer, designer or entity placing the product
on the market.
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ISO 11525-2:2015(E)

3.14
normal access configuration
normal egress configuration
configuration of the truck on tyres, with its slewing structure in the forward aligned position, with
stabilizing devices in transport position, and with the boom lowered and fully retracted
4 General safety requirements
4.1 Principles
This part of ISO 11525 shall be supplemented by good management practices, safety controls and
application of sound principles of safety, training, inspection, maintenance, application selection and
operation. All data available regarding the parameters of intended use and expected environment
shall be considered. Those with direct control over the application and operation of the truck shall be
responsible for ensuring good safety practices.
NOTE Different operating conditions can require additional safety precautions, training and special safe
operating procedures.
The operation of any truck is subject to certain hazards that can be protected against only by the
exercise of care and common sense. It is essential to have competent persons trained in the intended
use, safe operation, maintenance and service of this equipment.
The user shall ensure that the operator understands that safe operation of the truck is also the
operator’s responsibility.
The user shall ensure that the operator’s mental or physical condition will not impair his/her ability to
operate the truck.
In addition to specific training, application selection and operation of the truck, the user shall take the
following fundamental unique characteristics for trucks that slew into consideration:
— these trucks are primarily designed for handling supported loads on forks;
— the slewing movement of the upper structure can reduce the need for frequent repositioning of the
truck;
— other attachments can be fitted.
Other applicable parts of ISO 11525, together with this part of ISO 11525, shall be referred to for specific
applications (e.g. handling of freely suspended loads).
4.2 Operator’s manual
The user shall ensure that the operator’s manual and any additional safety manuals provided by the
manufacturer with the truck are always available to the operator and maintenance personnel.
The user and/or the operator shall refer to the responsible entity should doubts on either the use of the
truck or the interpretation of the operator’s manual arise.
4.3 Modifications or alterations
Except as provided below, no modifications or alterations to a truck that can affect its capacity, stability
or safe operation shall be made without the prior written approval of the original truck manufacturer
or its successor. When the truck manufacturer or its successor approves a modification or alteration,
the user shall be responsible, prior to operation, for ensuring that appropriate changes are made to
information plate(s), documents, certificates, labels, tags and operator manuals.
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If the truck manufacturer is no longer in business and there is no successor, modifications or alterations
to the truck shall be carried out under the following conditions:
a) the design, testing and implementation of the modification or alteration is made in accordance with
ISO 10896-2 by a competent person;
b) a permanent record is kept of the design, tests and implementation of the modification or alteration;
c) appropriate changes are made to the information plate(s), documents, certificates, labels, tags and
operator’s manual(s);
d) a permanent and readily visible label is affixed to the truck stating the manner in which the truck
has been modified or altered, together with the date of the modification or alteration, and the
name of the person or organization responsible for the design, testing and implementation of the
modifications.
4.4 Manufacturer’s bulletins
The user shall comply with the applicable bulletins as directed by the responsible entity.
4.5 Operator qualifications
Users shall allow only competent and authorized persons to operate a truck. Truck operators shall be
competent to operate the equipment safely, in addition to being trained in accordance with this part
of ISO 11525.
4.6 Operator’s responsibility for training
Before operating any truck, the operator shall be trained in accordance with 4.7 and shall have read
and be familiar with the operator’s manual(s) and any other safety information provided by the
manufacturer and user on the particular truck type being operated, the application and environment in
which the slewing truck is to be used and any attachments used.
4.7 Operator training
4.7.1 Operator training programme
Personnel who are not considered competent to operate a truck shall operate the truck only as part of the
operator training programme. This training shall be conducted under the direct supervision of a trainer.
The operator training programme shall be based on user policies, industry standards, local regulations
and policies, operating conditions and the manufacturer’s instructions.
NOTE Information on operator training is available from sources including users, truck manufacturers,
government agencies dealing with employee safety, trade organizations of truck users, public and private
organizations and safety consultants.
The training programme shall emphasize safe and proper operation that avoids injury to the operator
and others and prevents property damage. The training program shall include the following items.
a) Information about the truck(s) the trainee will operate:
1) characteristics of this type of truck, including possible variations between these trucks and
other equipment (e.g. mobile elevating work platforms, cranes) in the workplace;
2) specifications with respect to other rough-terrain trucks (e.g. non-slewing trucks);
3) significance of information plates, load charts (maximum and minimum extension of the
outriggers, aligned or non-aligned positions, slewing range), warnings and instructions affixed
to the truck;
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ISO 11525-2:2015(E)

4) operating and safety instructions in the truck’s operator’s manual;
5) instructions for inspection and maintenance to be performed by the operator;
6) engine operation;
7) type of drive system and its characteristics;
8) methods of steering and manoeuvring in aligned position and for slewing angles greater than
90°;
9) braking methods and characteristics, with and without loads;
10) visibility, with and without loads;
11) load charts, how to read and comprehend them and the limitations of the load chart due to the
mass and load centres and slewing positions;
12) explanation of the stability characteristics (combination of longitudinal and lateral
configuration) in different conditions affected by load handling (raising, lowering and slewing),
stabilizing device configuration and slewing position, operation/manoeuvring without loads,
height, attachments, grade/ramps, centre of gravity of the load and centre of gravity of the
truck, combined load centre of gravity, counterbalance principle, use of suspension system;
13) controls and instrumentation, including their location, identification, function and method
of operation for different slewing configurations (forward aligned or non-aligned positions
greater than 90°), and the identification of symbols;
14) load-handling capabilities and proper use of forks and other load bearing or non-load
carrying attachments;
15) refuelling and battery charging;
16) guards and protective devices for the specific type of truck;
17) how to use stabilizing devices, chassis levelling and other stability-related functions, and
examples of improper operation and the risks associated with them;
18) how to correctly use the operator restraints, e.g. seat belt, and other safety devices;
19) basic steps to be taken in the event of a tip-over, e.g. bracing for impact;
20) wheel loadings when loaded and unloaded;
21) correct entering and exiting the truck in normal operation;
22) normal access/egress configuration and the need to always maintain three points of contact,
i.e. one hand and two feet or two hands and one foot;
23) types of attachments and their applications/limitations;
24) other characteristics, if any, of the particular truck;
25) use of upper slewing structure locking pin for transportation.
b) Operation and worksite-related topics:
1) surface conditions on which the truck is to be operated, loaded and unloaded, e.g. floor and
ground conditions, ground pressure, ramps and inclines, trailers;
2) load handling at height and at ground level;
3) levelling of the truck prior to picking and placing loads;
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ISO 11525-2:2015(E)

4) traffic (e.g. co-workers/bystanders, vehicles, other equipment in areas in which the truck is to
be used);
5) confined-area operations;
6) potentially hazardous locations where the truck will be operated;
7) ramps and gradients and how the stability of the truck could be affected by them;
8) enclosed environments and other areas where insufficient ventilation could result in a
concentration of carbon monoxide gas from the engine exhaust;
9) other unique or potentially hazardous environmental conditions at the worksite that could
affect other workers and the safe operation of the truck;
10) load handling in a stationary position;
11) displacement of the unladen truck to the appropriate location, stabilization, loading, chassis
levelling, slewing, lifting, extending, retracting, lowering;
12) load picking and carrying in accordance with specific manufacturer’s instructions;
13) emergency situations, (e.g. operation with safety devices bypassed, emergency stop), leaving
the truck, accessing for first aid purposes;
14) remote-controlled operations;
15) overhead obstacles.
c) Practice:
1) explanation of the truck components and safety devices by following the information for use;
2) maintenance and daily checks given in the operator’s manual and regulated periodical
inspections;
3) driving of the truck in a designated test area;
4) operation of the truck to highlight appropriate manoeuvres to be performed with the truck
laden and unladen (e.g. chassis levelling, load handling in a stationary position etc.).
4.7.2 Testing, retraining and enforcement
4.7.2.1 Testing
During training, performance and oral and/or written tests shall be given by the examiner to measure
the skill and knowledge of the trainee in meeting the requirements of the operator training programme
based on this part of ISO 11525. Examiners shall establish a pass/fail requirement for such tests. The
user shall verify that the testing has been satisfactorily performed.
Following the completion of instruction and practice, all trainees shall be evaluated.
The evaluation shall be conducted on the specific work tasks and shall include the following items:
a) preoperational inspection;
b) function test;
c) start-up;
d) travelling, with and without a load (including co-worker/bystander safety);
e) load handling in a stationary position;
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f) load selection and security;
g) load pickup and placement;
h) stacking/de-stacking;
i) handling specific to docks, carry vehicles and rail cars;
j) driving the unladen truck on ramps and grades;
k) proper use of the truck’s safety features;
l) shutdown;
m) refuelling/recharging;
n) operational maintenance.
Records shall be retained in accordance with 4.7.2.4.
4.7.2.2 Retraining
Operators shall be retrained when new equipment is introduced, existing equipment is modified,
operating conditions change, current training expires or an operator’s performance is deemed
unsatisfactory by the user.
Maximum period should not exceed five years before an operator is retrained.
The user shall determine the extent of the operator retraining, as well as the need for retraining, taking
into consideration regional or local requirements.
4.7.2.3 Enforcement
The user shall be responsible for enforcing the safe use of the truck according to the provisions of this
part of ISO 11525.
4.7.2.4 Record keeping
Records of the person or persons trained in the operation of the truck shall be retained for at least the
period of time for which the training is valid. In addition:
— the successful trainee shall be furnished with proof of training, verifying compliance with the
operator training program based on this part of ISO 11525 and other national regulation(s);
— the records shall reflect the period of time when the training has not expired;
— the records shall show the name of the trainee;
— the records shall include the name of the entity providing training or retraining, the name of
trainer(s) and examiner(s), clear identification of the truck type(s) and attachment(s) covered by
training, and the date of training;
— when requested, records regarding proof of training shall be made available.
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ISO 11525-2:2015(E)

4.8 Inspection and maintenance
4.8.1 General
The inspection and maintenance of trucks shall be performed in accordance with the manufacturer’s
and user’s recommendations, national regulations and
a) a planned system for scheduled inspection, lubrication, maintenance and adjustment (as
required), and
b) that only competent and authorized persons are permitted to maintain, repair, rebuild, adjust and
inspect trucks, in accordance with the manufacturer’s recommendations.
The user shall ensure that inspections and maintenance operations are conducted in an authorized
area where safe clearances exist.
4.8.2 Preparation for inspection or repair
Prior to operating the truck, the operator shall ensure that truck periodical inspection register is
complete and report any discrepancies or omissions to the user.
In preparation for, and prior to, starting the inspection or repair of a truck:
— the truck shall be parked on flat level compact ground;
— set the direction control in neutral, apply the parking brake, switch off the engine and remove the
device (e.g. key, key pad, magnetic card) that prevents starting without the use of such device;
— wheel chocks or other means shall be applied to ensure the truck remains stationary;
— manufacturer-approved methods/devices as outlined in the operator’s manual shall be implemented
to prevent unintentional movement of the truck/components before working on or around it;
— the possibility of unintentional fuel escape shall be eliminated before any part of the fuel system is
disconnected;
— the battery shall be disconnected before working on the electrical system;
— the possibility of an unintentional stored energy release, e.g. from the accumula
...