CMC S23 User manual

MAN.241 Rev.3
brand
model
Use and maintenance manual
Mobile elevating work platform
C.M.C.
S23
ORIGINAL
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MAN.241 Rev.3 ENG - Use and maintenance manual S23 page 1 of 78
0 Introduction  
hank you for the trust you have showed us buying a CMC mobile
elevating work platform (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 trans-
fer, use and maintenance of the MEWP. While drawing up this manual, we
took into consideration all the operations that are part of a normal 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 commands;
❑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 instructions for the ordinary mainte-
nance 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.
LEGEND OF SYMBOLS USED IN THIS MANUAL:
(CAUTION) = it warnstheuserabouttheriskofseriousdamages
to people or to part of the equipment or the machine,
if you donotobeythesafetyregulations.
(WARNING) = it notifies thepossibilityof minor injuries to people
or littledamages totheplatformormachineparts.
(FORBIDDEN) = prohibitionsignal.
➔(OBLIGATION) = obligationsignal.
(CAUTION) =it warns the user about the risk of environmental
pollution.
* (OPTIONAL) =itindicates anoptionaloutfit.
(IMPORTANT NOTE) = indicates information and suggestions useful to
workwiththeMEWP.
➔This manual is addressed to:
▪users: operators, ground assistants, guard staff, safety man-
ager, service manager;
▪manufacturers, dealers, owners, lessors or lessee, brokers.
T
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0.2 Disclaimer     
C.M.C. declines all responsibility in case of partial or total non-observance
of the following instructions
➔Before any operation of use of the machine, the user is obliged to
carefully read the text of this manual, with reference to sections rel-
ative to specific work activity to perform.
➔The use of the machine must be entrusted only to trained and au-
thorized staff. This manual cannot replace in any way a suitable ex-
perience that the staff in charge must have gained previously on
similar machines or that they will able to get on this machine, under
the guidance of an already trained staff.
➔The user must work within the functional limits of the machine and
perform a constant and diligent maintenance, using only original
spare parts indicated by C.M.C.
➔The operator shall carefully know the safety standards foreseen by
national and international legislations and apply them during all op-
erations with the MEWP.
The guarantee of proper functioning and full compliance of
the machine with the intended service is strictly dependent
on the correct application of all the instructions contained in
this manual.
The non-compliance with the previous items automatically in-
validates the warranty.
0.3 Where and how to store the manual
➔The manual must be stored and kept in the best possible con-
dition (away from sunlight), in a suitable place, for the purpose
of always being available for consultation.
➔This manual (or its copy) must always be on the machine (in a
case near the turret) for an immediate consultation by the operator
during working operations.
➔Another copy shall be hold by the basket operator during the
working period inside the internal documents case.
➔In case of loss or deterioration, the replacement documentation
must be requested to C.M.C. s.r.l, citing the code of this manual.
0.4 Legislative references 
This manual has been drawn up according to the following na-
tional and international laws and directives:
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 information and legislative references present in this manual are those
in force when the machine has been placed on the market.
Due to the constant and continuous improvement of their product by the
manufacturers, the supplied machine could present some technical specifi-
cations different from those described on this manual. Any change will be
however accompanied with specific documents attached explaining func-
tional characteristics. In case of differences in comparison with the basic
contents of this manual, the user is kindly asked to contact C.M.C. to receive
supplementary technical specifications.
As this manual includes both current and optional components, you could
find information not applicable to your machine.
C.M.C. reserves the right to update its production and its instruction manuals
(without prior notice) according to the development of the technique, to the
acquisition of new experiences and/or the change of law provisions, without
being anyway obliged to intervene on the previously sold machines and on
their manuals.
No part of this publication can be translated, modified or reproduced (even
partially) without the expressed authorization of C.M.C. s.r.l.
C.M.C. reserves the right to modify - totally or partially - any data or specifi-
cation of this publication (without prior notice).
Data and references indicated in this manual are those in force at the time
of printing.
Year 2020
C.M.C. s.r.l.
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1 Specifications 
1.1 Technical data 
PERFORMANCE
Max. working height
23,00 m
75.46 ft
Max. work outreach
(long area 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. ramp attack slope
(front/without jib)
14°-15° / 25-27%
Max. slope to travel
(longitudinally/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 two-men basket
rotated)
5,50 m
18.04 ft
Total length with
basket support rotated
5,07 m
16.63 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
in transport position
0,20 m
0.66 ft
Max. height that can be
climbed over
0,75 m
2.46 ft
Tracks (L x w)
1,75 x 0,25 m
5.74 x 0.82 ft
Tracks enlargement (*optional)
0,85/1,25 m
2.79/4.10 ft
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 the track
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
(4 feet opened)
225 kg/m²
(2,21 KN/m²)
46.08 lb/ft2
(V) Max. pressure in work
(4 feet closed)
224 kg/m²
(2,20 KN/m²)
45.88 lb/ft2
(Y) Max. pressure in work
(2 feet closed + 2 feet opened)
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 L100 diesel, 6.8 kW (9.3 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 lith-
ium batteries 160 Ah
Fuel tank capacity
6,1/15 l
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MAN.241 Rev.3 ENG - Use and maintenance manual S23 page 5 of 78
Max values (speed/force) allowed according to USA/EU standards
Max allowed lifting and descending speed of
the MEWP
0,4 m/s (1.31 ft/s)
Max allowed boom extension and withdrawal
speed
0,4 m/s (1.31 ft/s)
Max allowed rotation speed
0,7 m/s (2.3 ft/s)
Max allowed 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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1.2 Identification plate 
On the turret there is a tag where all identification data of the machine are
engraved:
Picture 1: identification plate.
1.3 CE certification 
C.M.C.s.r.l. states under its ownresponsibilitythat S23was designed and pro-
duced in compliance with national 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 manual.
1.4 TÜV certification 
C.M.C.s.r.l. statesunderitsownresponsibilitythat S23was designed and pro-
duced in compliance with US standards ANSI/SAIA A92.20:2018 and that
the machine 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) S23belongs to group B: the
vertical projection of the center of the area of the MEWP in different platform
configurations specified by the manufacturer can be outside the tipping lines
(EN 280 par. 1.4 - ANSI/SAIA A92.20 par. 3).
As for the displacement, it belongs to type 1: travelling is only allowed with
the MEWP in its transport configuration or in the stowed position (EN 280
par. 1.4 - ANSI/SAIA A92.20 par. 3).
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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 undergo at least 2 (two)
deep checks (structural, mechanical, electric, elements, etc.), in case of
particularly heavy uses (frequent use at the performance limit, particularly
unfavorable environmental conditions 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.
1
Loading cycle: a cycle starts from the access position, continues performing the
work and finishes returning to the access position.
1.7Working diagram 
Picture 2a: working diagram.
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Picture 2b: working areas.
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2 Description and scope
2.1 Machine definition 
The machine is called S23 and it is a mobile elevating work platform
(MEWP):
•machine/device intended for moving persons, tools and material to
working positions, consisting of at least a work platform with con-
trols, 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 ac-
cess positions at ground level or on the chassis and which consists
as a minimum of a work platform with controls, an extending struc-
ture and a chassis (EN 280 par. 3.1).
It is forbidden to use the MEWP with methods and/or conditions
other than those specified and approved by the manufacturer.
2.2 Machine purpose 
The MEWP S23is a machine which enables the operators to reach the
working place when this is high-positioned.
The machine has been designed for an essentially vertical use. It must
be transported only when it is totally folded in the transport position.
➔The use of the machine is allowed only to professional staff,
properly trained and specialized.
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2.3 Description of the main components 
Picture 3: main components of the MEWP.
1
2
4
5
6
7
12
8
10
11
13
14
16
15
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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 superstructure 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 (pan-
tograph upper crank and pantograph lower crank) and of the pantograph
connecting rod 7 (Picture 3). The booms (tubular with rectangular section,
bended and electro-welded) and the connecting rod are made with high
quality steel sheets. The movement of the pantograph (lifting and lowering
the pantograph) is obtained thanks to the hydraulic 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 elements: a fixed boom hinged to the turret and
two extensible booms 10 11 (Picture 3).
The extraction movement (or return) of the telescopic boom is obtained by
moving the "telescopic boom extraction cylinder" 13 (Picture 3).
The lifting (or lowering) movement of the telescopic boom is obtained by
moving the "telescopic boom lifting 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 made with tubular aluminium or steel,
bent, welded and hot galvanised, covered in fibreglass*or made in a struc-
ture 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 Control stations 
3.1 Machine switching on/off station
The machine switching on/off station is normally positioned on the right side
of the frame (Picture 4).
Picture 4: machine switching on/off station
in case of diesel engine.
It consists of an electrical panel (Picture 4) 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;
•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 bas-
ket wired control station, at right the radio control on the ground.
•the platform consent light 7:if lighted on, it allows the maneuvers
of the aerial part only with stabilization correctly performed.
•the stabilization consent light 8:if lighted on, it allows the move-
ment 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 4), you can find:
•the red sealed key to enable the emergency electropump (*op-
tional);
•the yellow sealed key to bypass the emergency in the basket
only in case of danger;
•the remote connection kit (lever and connector) (*optional) to re-
ceive technical assistance from C.M.C. Service or authorized work-
shops;
•the 12 V socket;
•the buzzer.
Before performing any operation, it is necessary to place the ig-
nition key in position 1.
If the machine supplied is equipped as full lithium version (*optional), the
switching on/off station is the following one:
5
4
3
2
1
SK
6
7
8
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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 the aerial part only with stabilization correctly performed.
•the stabilization consent light 8:if lighted on, it allows the move-
ment of the outriggers only with the boom and the pantograph rested
on their supports.
•the fuse box;
•the battery charge indicator 10;
•the hour counter.
3.1.1 Ignition of the endothermic engine
In order to start the endothermic engine, turn the SK key all the way to the
right up to the symbol .
Before starting the engine, especially if the MEWP is used in workplaces
with low atmospheric temperatures, it is advisable to heat the spark plugs of
the machine engine while keeping the key on the symbol for a few sec-
onds: this will cause the corresponding orange light 2(Picture 4) to turn on.
The ignition of the endothermic engine can also be carried out with the ra-
dio/wired control. Using it on the ground or in the basket:
•turn the SK key to position 1;
•move the lever in the Picture 5 upwards, present on the left bottom
side of the radio/wired control (Picture 8);
•in this case, the green light 5(Picture 4) will light up on the switching
on/off station to signal the correct power supply of the machine.
Picture 5: power on/off lever on the radio/wired control.
To switch off the endothermic engine, you can alternatively:
•turn the SK key all the way to the left on position 0;
•lift the lever in Picture 5, on the radio/wired control;
•press, in emergency situations, one of the emergency buttons on
the machine (par. 4.5.1).
3.1.2 Ignition of the electric engine (*optional)
If you choose to use the auxiliary electric engine (*optional):
•connect the 110/120/230 V socket to the nearest electrical source
(Picture 6);
5
8
7
10
SK
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Picture 6: power line socket.
•from the radio/wired control, start the engine by pushing the lever in
Picture 5 downwards;
•the power supply is signaled by the lighting up of the green led 5
(Picture 4) on the switching on/off station.
To switch off the electric engine*, it will be enough to alternatively:
•turn the SK key all the way to the left on position 0;
•lower the lever mentioned above on the radio/wired control;
•press, in emergency situations, one of the emergency buttons pro-
vided on the machine (par. 4.5.1).
3.1.3 Other power supplies (*optional)
The MEWP can also be equipped with an alternator (Picture 7a - *optional)
capable of providing dual power supply at 110 V and 230 V. The desired
one can be set thanks to a special electric selector (Picture 7a - *optional)
fixed to the frame.
Picture 7a: alternator and selector (*optional).
This allows you to have electrical outlets of both voltages (Picture 7b): on
the ground to power the electric motor and/or in the basket to power work
tools.
Picture 7b: dual power sockets.
Power line
socket
Machine plug
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Moreover, the machine can be supplied on request with a 48 V electric en-
gine powered by 160 Ah lithium batteries.
The start and stop of the 48 V electric engine will be the same shown above
for 110/120/230 V electric engine.
It is not possible to have the 48 V electric engine and the
110/120/230 V one activated on the machine at the same time.
It is not possible to turn on both the endothermic engine and the
electric engine at the same time.
To recharge the lithium batteries pack:
1. couple the 110/120/230 V socket (power line) to the plug on the ma-
chine and lift the button provided on the machine's thermal magnetic
panel;
2. from this moment the batteries will be charging and, if the electric
system is ON, the progress of the charging process will be shown
on the control station led panel (Picture 9).
When the state of batteries charge, during the use, reaches the
lowest level (under 10%), all work maneuvers will be interrupted,
and it will only be possible to close the machine again.
It is absolutely forbidden to direct high-pressure jets of water
onto the support containing the battery pack.
High water pressure could generate serious and irreversible
problems in the operation of the machine.
3.2 Platform control stations 
There are two platform control stations:
1. the main one (operating) is the AUTEC control station (*optional)
fixed and cabled in the basket (Picture 12);
2. the second one (emergency) is the AUTEC radio control station
(Picture 8);
3. the third one (emergency) is totally hydraulic with electrovalves lo-
cated on the frame (Picture 15).
It is not possible to use two different control station at the same
time.
The system will select as actual control station the first one that will be used
by the operator. Once the AUTEC remote control station is connected, it will
become the actual control station, and in order to select a different control
station you need to turn off and back on the system by the ignition key or
any of the emergency buttons on the machine (except the one on AUTEC
remote control).
3.2.1 Platform (emergency) control station
The platform (emergency) control station from the ground consists of the
AUTEC radio control (Picture 8).
It can be activated only by carrying out the connection procedure described
below (radio control activation directly excludes the basket control station).
Radio control link procedure:
1. To connect the radio control, press the green Start/Link button SL
(Picture 7) down on the left side.
2. the green led light “Power” on the upper right side of the electronic
panel (Picture 9) of the radio control comes on.
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Picture 8a: start/link button on radio control.
3. if the radio control is not correctly connected to the machine, the
green led “Power” flashes intermittently and a buzzer on the electric
box emits an intermittent acoustic signal. Press the start/link button
again: when the connection is complete, the buzzer stops and the
green led starts to light up at the rate of two flashes interspersed
with a pause.
SL
CK
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Picture 8b: radio control station.
J1
J2
7
8
9
10
11
12
EB
J5
J6
J4
J3
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The radio control has the following commands (Picture 8):
-on the left side:
•a green start/link key;
•a blue coding key CK (Picture 14), which puts the console in
communication with the machine control unit. Be careful not to lose
it!
•parking button P: it has multiple functions; one of the most im-
portant is the automatic return of the booms in the rest position.
-on the central electronic panel:
•joystick J1 for travel of left track (orange) / basket levelling
(white) / basket rotation (yellow);
•joystick J2 for telescopic boom extraction/return (yellow);
•joystick J3 for boom lifting/lowering (yellow);
•joystick J4 for lifting/lowering and extraction/return of panto-
graph (yellow);
•joystick J5 for narrowing/widening of tracks (orange) (*op-
tional) / turret rotation (yellow);
•joystick J6 for travel of right track (orange) / jib lifting/lower-
ing;
•emergency red mushroom-shaped button EB that blocks the
machine, removing the power supply to the control circuits. This
button has priority over all other commands; thus, it allows only
manual descent to the ground. The emergency button has a me-
chanical locking device; therefore, it must be unlocked by turning
it clockwise to reactivate the normal machine working.
•lever 7for travel block bypass: it allows to bypass the travel
block in case of maximum slope reaching, keeping the lever up-
ward;
•lever 8for endothermic or electric* engine power on/off;
•lever 9for lowering front or rear stabilizers during loading/un-
loading operations;
•travel speed selector 10: “turtle” mode = slow speed, “hare
mode” = medium speed (*optional), “double hare” mode = high
speed (*optional);
•lever 11 for automatic stabilization/destabilization;
•lever 12 for "Home function”/ basket levelling (dead man de-
vice).
Carry out the basket levelling operation only when the aerial part
of the MEWP is in transport configuration.
It is strictly forbidden to carry out the basket levelling operation
when the machine is developed.
-on the right side:
•electropump activation button.
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