CMC S23 User manual

Mobile Elevating Work Platform(MEWP)
S23
USE AND MAINTENANCE MANUAL
Man.241 Rev.5

MAN.241 Rev.5 ENG - Use and maintenance manual S23 page 1of 127
0 Introduction
hank you for the trust you have showed us
buying a CMC mobile elevating work plat-
form (MEWP). We are sure you will be
pleased with your choice.
0.1 Content of the manual
This manual contains the technical specifications and
instructions for transfer, use and maintenance of the
MEWP. While drawing up this manual, we took into
consideration all the operations that are part of a nor-
mal use and regular maintenance of the machine. So,
for a correct and optimum use, you have to follow the
described instructions carefully.
This manual has been drawn up in order to:
❑Show the technical features of the machine;
❑Describe the control stations and their com-
mands;
❑Provide with the instructions for the transport,
placement and use of the machine;
❑Describe the safety devices;
❑Point out the potential risks and/or possible
dangerous situations;
❑Provide with the necessary instructionsfor the
ordinary maintenance operations;
❑Provide with the instructions for the filling of
the check register.
THE USE AND MAINTENANCE MANUAL IS
CONSIDERABLE AS A PART OF THE
MACHINE. In case of the MEWP sale, please
send this manual to the new owner.
T

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LEGEND OF SYMBOLS USED IN THIS MANUAL:
(CAUTION) = warns the user about the risk
of serious damages to people or to part of the equip-
ment or the machine, if you do not obey the safety
regulations.
(WARNING) = notifies the possibility of minor
injuries to people or little damages to the platform or
machine parts.
(FORBIDDEN) = prohibition signal
➔(OBLIGATION) = obligation signal
(CAUTION) = it warns the user about the risk of
environmental pollution.
* (OPTIONAL) = it indicates an optional outfit.
(IMPORTANT NOTE) = it shows information and
suggestions useful to work with the MEWP
➔This manual is addressed to:
▪users: operators, ground assistants, guard
staff, safety manager, service manager;
▪manufacturers, dealers, owners, lessors
or lessee, brokers.
0.2 Disclaimer
C.M.C. declines all responsibility in case of partial or
total non-observance of the following instructions.
➔All information showed in this manual are man-
datory. Before running the machine, the user is
obliged to carefully read and study all instruc-
tions of this manual, with particular reference to
sections relative to specific work activity to per-
form. For the impossibility of the manufacturer
to be able to check the state of the machine and
the operations carried out, it is the user's re-
sponsibility to comply of the safety procedures
described in this manual.
➔Only properly trained and authorized personnel
shall be permitted to operate the MEWP. The
employer is obliged to make sure that the oper-
ator has the aptitude requirements necessary

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for the correct management of the machine,
that he has carefully read and understood what
is reported in this use and maintenance manual,
and that he has received adequate training to
work in standard and emergency situations.
However, this manual cannot replace in any
way a suitable experience that the staff in
charge must have gained previously on similar
machines or that they will able to geton this ma-
chine, under the guidance of an already trained
staff.
➔The user must work within the functional limits
of the machine and perform a constant and dili-
gent maintenance, using only original replace-
ment parts approved by C.M.C. Any alteration
and/or modification of the original design char-
acteristics of the machine without prior written
approval of the manufacturer are absolutely
prohibited and make the responsibility for such
actions fall directly on operators.
➔The operator shall carefully know the safety
standards foreseen by national and interna-
tional legislations and apply them during all op-
erations with the MEWP.
➔If an accident (i.e. high height operator’s sus-
pension), it’s compulsory to replace safety an-
chorage components and any damaged parts of
the machine and verify that platform’s structure
is suitable for use making it checked by
C.M.C.’s specialized technicians.
When buying a machine, a warranty certificate
is delivered with the warranty terms clearly in-
dicated.
The guarantee of proper testing and function-
ing of the machine is strictly dependent on the
correct application of all the instructions con-
tained in this manual.
The non-compliance with the previous state-
ments automatically invalidates the warranty.
0.3 Where and how to store the
manual
Original manufacturer's languages: Italian and Eng-
lish.
All other languages are copies of the original instruc-
tions.
➔The manual must be stored on the machine
in a weather-resistant storage location, in an
easily accessible place, in order to be avail-
able for consultation at any time.

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➔This manual (or its copy) must always be
kept in the best possible condition (away
from sunlight).
➔During the work, a copy shall be hold by the
ground operator in a turret case and another
copy by the basket operator inside the
proper documents case.
➔In case of loss or deterioration, the replace-
ment documentation must be requested to
the manufacturer, specifying the code and
the review number of the manual.
0.4 Legislative references
The machine has been designed, built and tested
according to:
othe harmonized European standard EN280
which provides the presumption ofconformity to
Essential Safety Requirements of the Machin-
ery Directive 2006/42/EC being Voluntary Tech-
nical Standard - type C;
othe American standard ANSI/SAIA 92.2.
The stability and overload tests of the machine were
carried out in compliance with what described in
EN280 and ANSI/SAIA A92suite and they have been
successful.
In addition, the technical safety requirements of the
following international standards have been applied:
Directive
2006/42/CE
EN 280:2015
EN 13001-3-1
Directive
2014/35/UE
Directive
2000/14/CE
EN ISO 12100
ISO 13849-1-2
ISO 3864
EN 60068-2-64
ISO 13850
ISO 4302
EN 60204-1
ISO 13854
ISO 4305
EN 60204-32
ANSI/SAIA
A92.20-2020
ANSI/SAIA
A92.24-2018
IEC 60529
ANSI/SAIA
A92.22-2020
ANSI Z359.1
EN 62061
CAN/CSA
B354.6 (2017)
CAN/CSA
B354.7 (2017)
ISO 13857
AS/NZS
1418.10-2011
AS NZS
1418.10-2011
A1-2017
ISO 20381

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0.5 Changes and integrations
The legislative references and data indicated in this
manual are those in force when the machine has
been manufactured and placed on the market.
As this manual includes both current and optional
components, you could find information not applica-
ble to your machine. All the photos and drawings in-
cluded in the following manual have been added to
simplify the reader's understanding. The machine in
your possession may differ in some parts from the
photos and drawings shown. In case of differences
among the basic contents of this manual and the ma-
chine, the user is kindly asked to contact C.M.C. to
receive supplementary technical documents.
C.M.C. reserves the right to improve its products and
update their manuals (without prior notice) according
to technical and quality improvements, and to the
change of law provisions, without being anyway
obliged to intervene on the previously sold machines
and on their documents.
Modifications or additions to a MEWP shall be made
only with prior written authorization of the manufac-
turer. In case the manufacturer no longer exists,
modifications to a MEWP shall be made under the
direction of an engineer with expertise in MEWPs
sector. The owner shall retain written permission and
pass it on to any subsequent owner, as applicable.
No part of this publication can be translated, modified
or reproduced (even partially) without the expressed
authorization of C.M.C. s.r.l.
Year 2021
C.M.C. s.r.l.

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1 Description and
scope
1.1 Machine definition 
The machine is called S23 and it is a mobile ele-
vating work platform (MEWP):
•machine/device intended for moving persons,
tools and material to working positions, consist-
ing of at least a work platform with controls, an
extending structure and a chassis (ANSI/SAIA
92.20 par. 3);
•mobile machine intended to move persons to
working positions, where they are carrying out
work from the work platform, with the intention
that persons are getting on and off the MEWP
only at access positions at ground level or on
the chassis and which consists as a minimum
of a work platform with controls, an extending
structure and a chassis (EN 280 par. 3.1).
It is forbidden to use the MEWP with meth-
ods and/or conditions other than those
specified and approved by the manufac-
turer.
1.2 Machine purpose 
The MEWP S23is a machine which enables the op-
erators to reach the working place when this is high
positioned.
The machine has been designed for an essentially
vertical use. It must be travelled only when it is totally
folded in the transport position.
➔The use of the machine is allowed only to
professional staff, properly trained and spe-
cialized.
1.3 CE certification 
C.M.C. s.r.l. states under its own responsibility that S23
was designed and produced in compliance with na-
tional and European standards, and that the machine
is identical to the model submitted to control and test
for the “CE certification” by the Notified Institute nr.
1878 - VERICERT s.r.l. - via L. Masotti, 5 - 48124
Fornace Zarattini (RA) - Italy.
A copy of the CE Certificate is attached to the man-
ual.

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1.4 TÜV certification
C.M.C. s.r.l. states under its own responsibility that S23
was designed and produced in compliance with US
standards ANSI/SAIA A92.20:2020 and that the ma-
chine is identical to the model submitted to control
and test for the “TÜV certification” by TÜV SÜD
America Inc.
TÜV SUD America Inc. is an OSHA recognized
NRTL and a Standards Council of Canada accredited
certification body.
1.5 Classification 
The mobile elevating work platform (MEWP) S23 be-
longs to group B: the vertical projection of the center
of the area of the MEWP in different platform config-
urations specified by the manufacturer can be out-
side the tipping lines (EN 280 par. 1.4 - ANSI/SAIA
A92.20 par. 3).
As for the displacement, it belongs to type 1: travel-
ling is only allowed with the MEWP in its transport
1
Loading cycle: a cycle starts from the access position,
continues performing the work and finishes returning to the
access position.
configuration or in the stowed position (EN 280 par.
1.4 - ANSI/SAIA A92.20 par. 3).
1.6 Loading cycles
The machine is expected to live for 40.000 loading
cycles
1
(i.e. 10 years, for 40 weeks per year, for 20
hours per week, for 5 loading cycles per hour).
Within this term of time, the machine must un-
dergo at least 2 (two) deep checks (structural, me-
chanical, electric, elements, etc.), in case of partic-
ularly heavy uses (frequent use at the performance
limit, particularly unfavorable environmental condi-
tions such as steel plants, paper mills and so on) it is
better to increase checks. Anyway, it is a good
rule to have the state of the machine checked by
the manufacturer factory or by an authorized
workshop, at least every 1500 - 2000 hours of
work or once per year.

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1.7 Identification plate 
On the turret there is a tag where all identification
data of the machine are engraved:
Picture 1: identification plate.

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2 Specifications 
2.1 Technical sheet 
PERFORMANCE
Max. working height
23,00 m
75.46 ft
Max. work outreach
(with 200 kg)
12,40 m
40.68 ft
Max. load on the basket
200 kg
441 lb
Turret rotation
+/-355° (tot. 710°)
Basket rotation
(*optional)
+/-90°
Work angle of Jib
90°
Max. slope to stabilize
13° / 23%
Max. slope approach an-
gle (engine side/basket
side without jib)
14°-15° / 25-27%
Max. slope to travel (lon-
gitudinally/transversally)
17°-10° / 31%-18%
Travel speed
0,60-1,40
km/h
0.37-0.88
mph
DIMENSIONS
Basket height
1,10 m
3.61 ft
Basket width
0,60/0,70
m
1.97/2.30
ft
Basket length
0,80/1,40
m
2.62/4.59
ft
Total length with basket
5,50 m
18.05 ft
Length with
basket support rotated
5,10 m
16.73 ft
Height in transport position
1,98 m
6.50 ft
Total width (without basket)
0,88 m
2.89 ft
Clearance from the ground
under chassis in transport po-
sition
0,20 m
0.66 ft
Max. height to stabilize on an
obstacle (with tracks lifted)
0,75 m
2.46 ft
Tracks (L x w)
1,75 x
0,25 m
5.74 x
0.82 ft
Tracks widening (*optional)
0,85/1,25
m
2.79/4.10
ft

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Max. longitudinal
stabilization
5,20 m
17.06 ft
Max. cross stabilization
3,84 m
12.60 ft
Min. longitudinal
stabilization
3,81 m
12.50 ft
Min. cross stabilization
2,46 m
8.07 ft
Intermediate cross
stabilization
3,15 m
10.33 ft
Outriggers plate Ø
0,18 m
0.59 ft
WEIGHT AND PRESSURES
Total weight
(standard)
2865 kg
6317 lb
(R) Max. pressure on
the foot
8,4 kg/cm²
(82,38 N/cm²)
119.48 lb/in2
(S) Max. pressure on
tracks
0,2 kg/cm²
(2,03 N/cm²)
2.84 lb/in2
(T) Max. pressure in
travel
651 kg/m²
(6,38 KN/m²)
133.34 lb/ft2
(U) Max. pressure in
work (wide area)
225 kg/m²
(2,21 KN/m²)
46.08 lb/ft2
(V) Max. pressure in
work (narrow area)
224 kg/m²
(2,20 KN/m²)
45.88 lb/ft2
(Y) Max. pressure in
work (mixed area)
258 kg/m²
(2,53 KN/m²)
52.84 lb/ft2
POWERS
Standard
hydraulic feed
1) Honda iGX390 petrol, 8.7 kW
(11.7 HP), 3600 rpm
*Optional feeds
2) Yanmar L100W diesel, 6.8 kW
(9.1 HP), 3600 rpm
3) Kubota Z602-E4B diesel, 10.8
kW (14.5 HP), 3200 rpm
4) Electric motor: 230/120/110 V
5) Motor G0901306, 9 kW, 48 V,
with lithium batteries 160 Ah
Fuel tank capacity
6,1/15 l
Max values (speed/force) allowed
according to USA/EU standards
Max. lifting and descending
speed of the MEWP
0,4 m/s (1.31 ft/s)
Max. boom extension and retrac-
tion speed
0,4 m/s (1.31 ft/s)
Max. rotation speed
0,7 m/s (2.3 ft/s)
Max. manual force in the basket
with 1 operator
400 N
Tightening
torque
Slewing ring bolts
M16 cl 10.9
28 daNm

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2.2 Work diagram 
Picture 2a: work diagram.
Picture 2b: work areas.

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2.3 Description of the main components 
Picture 3: main components of the MEWP.

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2.3.1 Frame
The frame 1(Picture 3) is a steel structure having a
quality appropriate in order to distribute the weight of
the equipment when the MEWP is in driving position.
The frame features 4 hydraulic jacks for stabilization.
The base for the support slewing ring is on the frame
and through the rotation unit allows the tilting of the
equipment.
2.3.2 Turret
The turret 5(Picture 3), made of quality steel, is fixed
to the bearing (slewing ring). The rotation of the su-
perstructure is allowed by a hydraulic power with
brake normally closed, constrained to the turret.
2.3.3 Pantograph
The pantograph 6 (Picture 3) consists of two pairs of
parallel booms (pantograph upper crank and panto-
graph lower crank) and of the pantograph connecting
rod 7 (Picture 3). The booms (tubular with rectangu-
lar section, bended and electro-welded) and the con-
necting rod are made with high quality steel sheets.
The movement of the pantograph (lifting and lower-
ing the pantograph) is obtained thanks to the hydrau-
lic cylinder for lifting the pantograph 12 (Picture
3).This cylinder is fastened to the turret (barrel side)
and to the upper pantograph crank (rod side) and is
equipped with double-acting balancing valve.
The double pantograph has an operating field from
0° to about +65° (with respect to the horizontal).
2.3.4 Telescopic boom
The telescopic boom 8(Picture 3) is hinged to the
turret. The telescopic boom is made up of three ele-
ments: a fixed boom hinged to the turret and two ex-
tensible booms 10 11 (Picture 3).
The extraction movement (or return) of the telescopic
boom is obtained by moving the "telescopic boom ex-
traction cylinder" 13 (Picture 3).
The lifting (or lowering) movement of the telescopic
boom is obtained by moving the "telescopic boom lift-
ing cylinder" 14 (Picture 3).
2.3.5 Basket
The basket 16 (Picture 3) is connected to the second
extensible boom through the jib 15 (Picture 3). It is

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made with tubular aluminium or steel, bent, welded
and hot galvanised, covered infibreglass*or made in
a structure completely in fibreglass*; it is equipped
with side or front opening for operator access. The
opening is self-hinged and built to avoid accidental
openings. The platform is provided with attachments
for the safety belts, a guard-rail at a height of 1.1 m
from the floor, an intermediate guard-rail and a foot
guard band along all the sides of the platform. The
floor is in anti-skid and self-draining aluminium.

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3 Command stations
3.1 Machine switching on/off
station
The machine switching on/off station is normally po-
sitioned on the right side of the frame (Picture 4a).
Picture 4a: machine switching on/off station
in case of diesel engine.
It consists of an electrical panel (Picture 4a) in which
there are:
•the SK key: through it, it is possible to turn on
the electric system and start the endothermic
engine;
•the hour counter HC ;
•the green light 5indicating system power
supply: it is on when the SK key is in position
1;
•the red light 4 which signals low pressure to
the engine oil;
•the red light 3 which monitors coolant level;
•the orange light 2 indicating the spark plugs
working;
•the red light 1 which signals an alternator
failure;
•the control station selector (*optional) 6: at
left it enables the basket wired control station,
at right the radio control on the ground.
•the platform consent light 7:if lighted on, it
allows the maneuvers of theaerial part only with
stabilization correctly performed.
•the stabilization consent light 8:if lighted on,
it allows the movement of the outriggers only
with the boom and the pantograph rested on
their supports.
•the fuse box.
In addition, on the left side of this case (Picture 4a),
you can find:
HC

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•the red sealed key to enable the emergency
electropump (*optional);
•the yellow sealed key to bypass the emer-
gency in the basket only in case of danger;
•the remote connection kit (lever and con-
nector) (*optional) to receive technical assis-
tance from C.M.C. Service or authorized work-
shops;
•the 12 V socket;
•the buzzer.
Before performing any operation, it is nec-
essary to place the ignition key in position
1.
If the machine supplied is equipped as full lithium ver-
sion (*optional), the switching on/off station is the fol-
lowing one:
Picture 4b: machine switching on/off station
in case of full lithium version.
•the SK key: through it, it is possible to turn on
the electric system and start the electric engine;
•the green light 5indicating machine power
supply: it is on when the SK key is in position I;
•the platform consent light 7:if lighted on, it
allows the maneuvers of theaerial part only with
stabilization correctly performed.
•the stabilization consent light 8:if lighted on,
it allows the movement of the outriggers only
5
8
7
10
SK

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with the boom and the pantograph rested on
their supports.
•the fuse box;
•the battery charge indicator 10;
•the hour counter.
If the machine supplied is equipped with gasoline en-
gine, the switching on/off station is the following one:
Picture 4c: electric station in case of gasoline
engine.
•selector 11 of the control station: on the
left it enables basket controls, on the right
it enables lower controls;
•platform consent light 12: if turned on, it
allows operations of aerial part only with
stabilization carried out correctly;
•stabilization consent light 13: if turned on,
it allows stabilizers movement only with the
boom and the pantograph rested on their
supports;
•the green light 14 indicating machine
power supply: it is on when the SK key is
in position I;
•the fuse box;
•the hour counter HC.
12
13
14
CO
11