MAER IDROPULITRICI LASER Series User manual

High Pressure Cleaner
LASER
Instructions Manual
Instructions for installation and use
Manufactured by:
MAER IDROPULITRICI SNC
Via Torre 65/2
24050 Torre Pallavicina BG
Tel [phone]
Fax [phone]
[e-mail]
www.maeridropulitrici.com
ITALY

Contents
1. Field of employment
2. Characteristics of the personnel employed to use the cleaner
3. Accidents prevention
4. Characteristics of the high pressure cleaner
5. Instruments of the high pressure cleaner
6. Transport and unpacking
7. Installation
8. Connection to the electricity supply
9. Connection to the water supply
10. Switching on
11. Switching off
12. Maintenance
13. Pump
14. Demolition
15. Problems during the operation
16. Hydraulic plan
17. Warranty
18. Additional instructions
19. Declaration of conformity
ATTENTION: do not use the high pressure cleaner without reading the manual

INSTRUCTIONS MANUAL
INSTRUCTIONS FOR INSTALLATION AND USE
Congratulations!
By purchasing a MAER high pressure cleaner, you have purchased a high technology machine that will allow
you to realize, for a long time, washing operations with care, versatility and safety. The customer and buyer
must verify that the operators have read and know the content of the manual and that, therefore, attentively
and meticulously follow all the indications. The manufacturer doesn’t respond of the damages caused to
things, people or animals or those suffered by the high pressure cleaner itself, if the conditions here clarified
are not respected. This manual is an integral part of the machine and therefore must be preserved with care
for all the life of the high pressure cleaner, up to its demolition. The manufacturer reserves himself the right
to the change, also without warning, of his/her own products, without varying, in the case in which the
changes are marginal, the documents and the relative technical documentation.
1. Field of employment
1.1. The high pressure cleaner is exclusively destined to the washing, by a jet of high pressure water, of
objects and surfaces available to sustain its mechanical and thermal action, and, eventually, the chemical
action of the additive liquids, detergents and disinfectants, etc...; it allows therefore the cleaning, the
disinfection, the sandblasting, the scaling, etc… using accessories, of objects and of surfaces.
1.2. The destination of employment of the high pressure cleaner must meticulously been respected, and
every other employment must be considered improper.
1.3. The nameplate of identification (with the technical characteristics of the machine) is positioned on the
machine and it is always present. Please make sure, when you Purchase the high pressure cleaner, that the
machine has this nameplate of identification. Otherwise, advise immediately the supplier. Machines without
nameplate of identification have to be considered anonymous and potentially dangerous; they mustn’t be
used, otherwise every responsibility of the manufacturer will decade.
2. Characteristics of the personnel employed to use the high pressure cleaner
2.1. All those people that deal with the operation of the machine must dispose of a specific education or of
an experience matured on high pressure cleaners.
2.2. To prevent damages to things, people or animals, we recommend to the clients to inform all the
operators about the possible consequential risks caused by the installation and the use of the high pressure
cleaner.
2.3. The operator of the machine has to use always the described means of personal protection, according
to the law of the country of destination and what is given to him/her by his/her employer (safety shoes, work
overalls, protective glasses, etc...).
2.4. The personnel employed to the installation, to the use or to the maintenance of the high pressure
cleaner must be adult, experienced, mature and aware of his/her own suitable assignments and must be
able to correctly interpret what described in this manual, guaranteeing correctness, safety, as well as
scrupulousness in the controls.
2.5. Possible consequential responsibilities from the employed, and authorized personnel, to the installation
or to the use of the machine are delegated to the customer buyer.
2.6. Those people that deal with the maintenance must dispose of knowledge and specific (maintenance
technician) competences that allow him to correctly interpret instructions and sketches

3. Accidents prevention
3.1. The instructions furnished in this manual don’t replace in any way the norms related to the safety, to the
installation and the use, to the technical data or the norms in force in the nation of installation or use or the
norms dictated of the common sense.
3.2. Technicians or maintenance technicians are obliged to notify any possible defects or deteriorations that
are able, in any way, to compromise the original safety of the plant.
3.3. The serial high pressure cleaner is not equipped for working in environments characterized by particular
conditions of inflammability or explosiveness; flameproof equipment is supplied only and exclusively on
specific request. It is forbidden to install the high pressure cleaner in environments where inflammable
materials are present or with particles it suspended in the air: acids, inks, varnishes, resins, solvents, plastic
subjects, etc.; follow the norms imposed by the fire department.
3.4. The high pressure cleaner and its plant as the place and the environment, are forcedly exposed to the
water and the damp that injure the natural conditions of isolation of the plant. Don’t use therefore unsafe
electric cables, thorns or plugs, and sockets; check the integrity and the insulation of the electric cable,
together with the equipment of the operators. Don’t absolutely touch the thorn or the plugs with wet hands or
feet. To avoid accidental switching on, turn the interrupter on OFF before inserting or disconnecting the
power supply. Don’t pull the high pressure cleaner using the electrical cable or extract its thorn from the
socket.
3.5. Use with extreme care the chemical detergents not to deteriorate the environment (degradability
90%), parts or components of the machine, according to the updating of the legislative decree. Besides,
always check the degradability and the aggressiveness of the used detergents. Never use acids, inks,
solvents, liquid oily, varnishes, resins, etc…
3.6. The “cold” starting of the high pressure cleaner can cause some serious damages to the pump and the
circuits; the standstill prolonged at temperatures under 0°C could cause breakups and damages to the
pump and the pipes; therefore the emptying of the machine is advisable.
3.7. Always protect the high pressure cleaner from the atmospheric agents, from the cold and from the frost.
3.8. Never direct the jet of water towards people (not even to clean their clothes or their shoes) or animals,
nor the machine itself or any objects under electrical tension.
3.9. Lance and gun, although equipped with proper hilts, have a modest counterblow (about 22N) to the
departure of the jet; hold them with strength with both hands. Never touch the jet of water during the
operation of the high pressure cleaner.
3.10. If some defects, damages or deteriorations on the machine are found, disconnect it immediately, and
call an assistance authorized center or the supplier.
3.11. Don’t leave never, without overseeing, the high pressure cleaner working in presence of children.
3.12. ATTENTION: If used in the correct way and it is in a good state, the high pressure cleaner sends forth
a sonorous level of pressure (noisiness) of 101 dB.
3.13. The maximum level of vibrations of the lance during the operation is 22m/sec2
3.14. The high pressure cleaner has security devices for a safety use:
-Pressure switch
-Magnetothermic switch for motor protection
-By-pass valve
-Water Float (LASER MAX)
-Electric controls 24V
-Timed total stop system DSS
3.15. The high pressure cleaner is provided with a timed total stop system. If the pistol remains closed for
more than 10 sec., the motor will stop. The motor will start again by opening the pistol. In addition the
machine will stop after 10 false starts (due to micro-leaks) or after 60 minutes without use. In this case the
red light will blink. To restart the machine, turn OFF the switch Q1 and then, turn it ON again.
3.16. ATTENTION: The by-pass security valve allows to regulate the flow and the pressure of the water. In
addition it protects the pump from overpressure. The valve is set to the maximum allowed pressure and the
nut on the knob is sealed with paint. Replacements, reparations and new regulations must be made by
specific and authorized personnel.
3.17 ATTENTION: The magnetothermic switch protects the motor from overloads. In case of overload the
magnetothermic switch stops the motor. To restart the motor, turn OFF the main switch and then turn it ON
again. Replacements and reparations must be made by specific and authorized personnel with the machine
unplugged from the electricity network.

4. Characteristics of the high pressure cleaners
The high pressure cleaners LASER are divided in the following models:
Model
Maximum
pressure
(bar-psi)
Maximum
Flow
(l/min-gal/min)
Installed
Power
(KW)
Voltage
50Hz
(V)
Weight
(Kg-lb)
LASER MAX200/21
200-2900
21-5.5
7.5
400
85-187
LASER MAX200/30
200-2900
30-7.9
11
400
95-209
LASER PRO150/15
150-2175
15-4
5.5
400
60-132
LASER PRO150/21
150-2175
21-5.5
7.5
400
70-154
LASER PRO200/15
200-2900
15-4
7.5
400
70-154
LASER PRO200/21
200-2900
21-5.5
10
400
80-176
LASER EKO120/8
120-1740
8-2.1
2.5
230
40-88
LASER EKO120/11
120-1740
11-3
3
230
50-110
LASER EKO130/10
130-1885
10-2.6
3
230
55-121
LASER EKO150/14
150-2175
14-3.7
5.5
400
55-121
LASER EKO180/12
180-2600
12-3.2
5.5
400
55-121
5. Instruments of the high pressure cleaner
Q1: ON/OFF Magnetothermic switch
H1: Electricity supply light (green)
H2: Alarms light (red)
MA: Pressure gauge
IN: Connection to the water supply (inlet)
OUT: Connection to the lance (outlet)

H1 H2 Q1 MA
OUT IN
6. Transport and unpacking
6.1. Submit lifting and transport to specialized personnel. Protect the machine, especially during the
transports on road, from bumps, damps or from vibrations, etc… The high pressure cleaner is climbed on
wheels, it must firmly be anchored before the beginning of the transport.
6.2. To unpack the high pressure cleaner, verify that is not damaged and has got all the parts and
components. In the case in which the machine is damaged, please call the supplier and do not use the
machine. We remember that the elements used in the packing of the machine could hurt the operator if not
handled with care. These elements must be digested therefore and not left to the course of children or of
irresponsible persons. The same is worth for the objects used in the removal of the pack (knives, scissors.).
For tied up demands to packing and transport, some components are supplied not installed; proceed
therefore to the installation according to the instructions of the manual.

7. Installation
7.1. Control carefully that the environment for the installation of the high pressure cleaner considering all the
foreseen and unforeseen possibilities. The machine is equipped with wheels, therefore it is unadvisable to
position it, without precautions, on tilted surfaces.
8. Connection to the electricity supply
8.1. The high pressure cleaner can be connected to alternating current single phase (230V) or three phase
(400V) with frequency 50Hz. For the three phase models, the high pressure cleaner is normally supplied
connected to 400 V, although can be in demand connected to 230V three phase.
8.2. For the maximum absorption of the electricity, compare the underlying chart.
8.3. Verify that the electric net, to which the machine is connected with the electric cable CA, has the
appropriate characteristics.
8.4. The high pressure cleaner is endowed with a magnetothermic switch that interrupts the power supply in
the case the absorption of the supply overcomes the value of the setting; for the location of the switch, take a
look to the electric plan attached to the machine.
8.5. The client buyer is kept to subsequently protect the line of the power supply by installing a lifesaver with
a load not exceeding 30A.
8.6. The cable is supplied without plug for the connection to the net: this must be installed by the buyer,
which will verify that:
The plug is proper for the data of the voltage and the tension above described.
The plug is conforming to the norms in force in the nation of use and that in any event it is earthed.
The connection cable and plug connection is waterproof.
8.7. If a cable with extension is used, this must have a minimum section of 4 mm2.The flying thorns and
plugs are forbidden.
8.8. If the cable of connection is damaged, this must be immediately replaced with a proper cable: such
operation must be performed by specific and authorized personnel
Power
Absorption 230V Single
phase (A)
Absorption 230V Three
phase (A)
Absorption 400V Three
phase (A)
KW 2.2
13
8.5
5
KW 3
-
14
8
KW 4
-
15
8.5
KW 5.5
-
21
12
KW 7.5
-
27
16
KW 11
-
39
23
9. Connection to the water supply
9.1. The pressure of the water supply must be at least 2 bar.
9.2. The water supply must provide a flow of water of at least of the 10% of the course of the high pressure
cleaner (compare the chart with technical characteristics).
9.3. First of all, connect the water supply tap to the machine input pipefitting IN, using a hose with proper
diameter.
9.4. Than, connect the lance to the link of exit OUT.
9.5. For a long duration of the pump, avoid the use of water containing sand or other particles that
jeopardize the efficiency of the valves, the plungers and the seals.

9.5. When the machine is equipped with a special tank, it is convenient to install a filter upstream of the
tank: the pipe of water feeding must have a diameter not smaller than the link of the connection to the
machine and must be prepared in such way to avoid that possible airlocks are formed.
9.6.The water supply can have a maximum temperature of 60°C and a maximum pressure of 8 bar.
The seals and other parts and components of the pump could be irremediably damaged when the machine
is made to work without water, even for short periods. Verify that the tap of the water supply is completely
open before the high pressure cleaner is switched on
OPERATION
10. Switching on
10.1. Turn the switch Q1 in position ON.
10.2. Pull the trigger of the pistol on the lance, holding it with strength to compensate its recoil and let the
machine working for 2 or 3 minutes to eliminate possible residues that could clog the nozzle.
10.3. The trigger of the gun has a safety catch that prevents the accidental activation of the lance. Insert
it on when the lance is not used.
11. Switching off
11.1. By releasing the trigger of the gun, the jet of water interrupts and the machine stops (timed total stop
system DDS), remaining however turned on and available to the use.
11.2. To switch definitely off the machine, turn off the switch Q1.
11.3. For prolonged stand-by, before turning off the machine unload completely the water from the circuit.
This procedure is advisable especially in places with temperatures below 0°C.
11.4. As soon as the water flow stops, switch the machine off by acting on the switch Q1.
11.5. ATTENTION: the operation of the pump in absence of water could irreparably damage its seals.
12. Maintenance
12.1. It is absolutely forbidden to effect controls or operations of maintenance with the machine operating or
under tension: always remove the electricity supply!!!
Don’t even effect reparations of fortune or precarious, and never use not-original spare parts.
12.2. The operations of extraordinary maintenance must regularly been made by specialized personnel
13. Pump
13.1. The pump is equipped with three plungers in ceramics with automatic recovery of possible leakages.
13.2. If a persistent dripping is noticed under the body of the pump, replace the plungers waterproofing
seals. Nevertheless, in the first hours of exercise, a small loss could points out; this is only and exclusively
an arrangement of the seals and not a breakdown.
13.3. If there are some losses of oil between the body of the pump and the head of the pump, it is necessary
to remove the oil, to get off the head and to handle the substitution of the seals of the head. For this
operation it is necessary to contact a specialized and authorized assistance center.
13.4. Restarting the pump after the maintenance to verify that this is supplied of oil. The oil must be
replaced after the first 50 hours of operation and subsequently every 500 hours of operation; the ability of
the reservoir of the oil is equal to 0,55 liters. Use only and exclusively oil with brand Esso Plus Motor Oil
20W30 or Shell Oil X100 20W40.

PUMP MAINTENANCE TABLE
INSPECTION
DAILY
WEEKLY
50Hrs
EVERY 500Hrs
EVERY 800Hrs
FILTERS
X
OIL
X
OIL/WATER LEAK
X
HYDRAULIC
SYSTEM
X
FIRST OIL
SUBSTITUTION
X
OIL
SUBSTITUTION
X
SEAL
SUBSTITUTION
X
14. Demolition
14.1. To allow the recycling of the raw materials, it is to separate well: pack (if supplied), the exhausted oils
and the lubricants, the electric motors, metallic pieces, parts and components in plastics.
14.2. It is compulsory to respect the norms in force related to the production, detention, harvest and disposal
of the refusals, according to what established by the legislative decree 22/97. The exhausted oils must be
delivered to the National Consortium Obligatory, while possible packing must be digested according to what
established by the title II of the legislative decree 22/97.
14.3. ATTENTION: MAER IDROPULITRICI society does not assume any responsibility for damages to
things, personal or animals, consequential and consequent to the re-use of the single parts or the single
components of the machine for function or situation of the assemblage different from the original for which
the high pressure cleaner has been conceived. Finally, when demolished, it is to destroy well the nameplate
of identification together to every other document related to the same machine.
15. Problems during the operation
Problem
Cause
Solution
The inlet hoses vibrate
Foreign piece in a valve
Air suction.
Disassemble the valve and
remove the foreign piece
Identify the source of the air
suction and eliminate it
The water does not reach the
lance although the pump is
working.
Missing water in the net.
Air inside the water circuit.
The lance nozzle is blocked.
The pump intake valve is
blocked.
The detergent intake tap is
open with empty detergent
tank.
The detergent feeder hose is
faulty.
Verify the connection with the
water supply and let the water
come in.
Bleed the circuit.
Remove and clean the nozzle.
Unscrew the valve and
unblock it.
Close the tap and fill the
detergent tank.
Replace the detergent feeder
hose.
The pressure at the lance is weak
although the pump is under high
pressure.
The lance nozzle is blocked.
The pressure valve is dirty.
There is lime scale encrusted
inside the pressure
adjustment valve.
Remove and clean the nozzle.
Remove and clean the valve.
Remove the valve, clean it
and scale it carefully.
The motor does not switch on.
The fuses have burnt
The switch is disconnected.
The by-pass valve does not
gives electric signal to the
electronic board.
Change the fuses.
Rearm the switch.
Check the microswitch on the
valve.

16. Hydraulic plan
2) Water inlet hose
3) Flow adjustment tap
4 )Delivery hose
6) Pump
7) Motor
8) Detergent tap
9) Detergent inlet hose
10) Tank
11) Filter
12) Nozzle
13) Microswitch
14) By-pass valve
15) By-pass hose
16 )Pressure gauge
22) Pistol
23) 10 m high pressure hose

17. Warranty
17.1 The High pressure cleaner has a twelve-month warranty from the date of delivery.
Defects and vices connected or consequent to not compliance with the indications contained in this manual
ARE EXCLUDED FROM THE WARRANTY.
17.2 MAER Guarantees the mechanical parts of the machine, under normal conditions of use and service;
this warranty does not include accessories and usage materials.
The warranty is intended for substitution of the faulty part.
Transport and installation of the new part are at customer’s charge.
17.3 In case of return of the high pressure cleaner, please enclose a sheet with the reasons of returning and
the type of malfunction.
17.4 No modifications can be made to the high pressure cleaner.
In case of modifications made by the customer, the warranty lapses.
17.5 The MAER company disclaims all responsibility for damages to persons and/or things deriving from use
of single parts of the machine, if they have been run or assembled differently from the original condition.
18. Additional instructions
18.1 Instructions of emergency conditions :
1 Switch off the machine
2 Disconnect the electricity supply
3 Call the public assistance
18.2 ACCESSORIES :
The high pressure cleaner can be provided with proper accessories which allow to use the machine to scale,
sandblast disinfect and unblock.
To scale Rotating nozzle
To sandblast Sandblasting head
To disinfect Foaming nozzle
To unblock Unblocking nozzle

DECLARATION OF CONFORMITY
Manufacturer:
MAER IDROPULITRICI SNC
Via Torre 65/2
24050 Torre Pallavicina (BG)
ITALIA
Responsible for the technical dossier:
BOTTI GIUSEPPE
Via Inferiore 1
24050 Torre Pallavicina (BG)
Description of the machine: HIGH PRESSURE CLEANER
Model: LASER
Serial number:
Year of construction:
Net power installed:
Pressure:
Flow:
Measured acoustic power level: Lw = 101 dBa
Guaranteed acoustic power level: Lw = 101 dBa
Herewith we declare that the above mentioned machine conforms to the instructions of the 2006/42/CE
machine directive and to the other following CE directives:
- Directive 2000/14/CE Acoustic inputs
- Directive 2002/44/CE Vibrations
- Directive 2004/108/CE ex 89/336/CE Electromagnetic compatibility
- Directive 2014/35/UE ex Directive 2006/95/CE ex 73/23/CE Low tension.
For the verification of the conformity, the following norms have been consulted:
- EN 292-1 / EN 292-2 / EN 60204-1 / EN 60335-2-79 / EN 60335-10
as described in the technical dossier, in the instructions manual for the use and the maintenance.
The technical dossier is filed at MAER IDROPULITRICI SNC company.
Torre Pallavicina, The legal representative
Agnese Maria Valcarenghi