Anest Iwata MSU B193 User manual

Use and maintenance manual
MUL
MULTI SPRA TI SPRAY UNIT Y UNIT
GB
MSU
MSU B303 B303
MSU
MSU B193 B193
MAB303ERev.13
ANEST IWATA Europe s.r.l.
46, Corso Vigevano
10155 Torino - Italia
Tel. [phone]
Fax [phone]
www.anest-iwataeu.com
e-mail: [email protected]

Dear Customer,
We thank you for the preference you have given us and we are glad to count you among our customers. We hope the
use of this equipment will satisfy you and your staff.
We have first of all designed our products by focusing not only on our experience, but also on the latest mechanical
innovations. The products have then been manufactured with first-rate materials and techniques and tested , consider-
ing your requirements.
We thank you once again and remember that all our technical services are at your disposal for any present and future
requirement.
Yours faithfully
The company
The mission of ANEST IWATA EUROPE S.r.l. is to supply all their product and spray painting equipment users and
distributors with STATE-OF-THE-ART of technology and with continuous innovation to obtain the best finish at the low-
est cost.
Our product range must offer the perfect balance between the use of energy and its effects to help to safeguard the
environment.
All the Anest Iwata Europe s.r.l. staff members use their knowledge and competence to provide their customers with
high quality, reliability and constant innovation.
Our activities, as the ones of other companies, are in compliance with several European Directives (Safety and
Environment) and International Standards (ISO - Quality and Environment).
As to SAFETY, the standards our products refer to are EC Directive 89/382 and subsequent; all our items of this type
have the CE marking and are supplied with a Technical File, which can be read on request. Moreover the products are
delivered with the proper use manual (according to the EN 292 European regulations) available in different languages.
Furthermore there are the following specific safety standards: EN 1953 for spray guns and pr EN 12621 for the pressure
pump circuits. These regulations can be looked up and purchased at UNI.
As to the QUALITY standards (ISO 9000), ANEST IWATA EUROPE is provided with ISO 9001 certification.
According to our philosophy, we give our partners, distributors and users any possible information necessary for the use
of our products and for the protection of the environment and the safety of the operators.
2
ANEST IWATA EUROPE
TORINO - ITALY

USE OF THE MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
SIMBOLS USED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
INFORMATIVE LETTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1. TRANSPORTATION AND HANDLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.1. Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.2. Transporting items contained in cardboard boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.3. Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.4. Temporary storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2. IDENTIFICATION OF THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.1. Plate data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.2. Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.3. Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4. Safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.5. Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3. OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.1. Description of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
4. INSTALLATION AND STARTUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4.1. Checking the purchased product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4.2. Conditions for the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4.3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4.4. Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
4.5. Multi spray unit drawing MSU-B303 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4.6. Multi spray unit drawing MSU-B193 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
5. USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
5.1. Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
5.2. Safety rules during use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
5.3. Clothes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
5.4. Prewash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.5. Starting up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
5.6. Daily interruptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5.7. Improper and dangerous uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5.8. Pressure release process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
6. MAINTENANCE AND INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.1. General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.2. Safety rules during maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.3. Recommended scheduled operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.4. Disassembly and re-assembly procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.5. Removing the hydraulic motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
6.6. Hydraulic motor group assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
6.7. Hydraulic motor maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
6.8. Delivery pipe installation procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
6.9. Removing Delivery pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
6.10. Installing the suction pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
6.11. Tests to be carried out after reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
6.12. Paint filter maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
7. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
8. SPARE PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8.1 MSU B303, MSU B303 SPARE PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8.2 Spare parts list for motor BM25046 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
8.3. Spare parts list for motor BM20046 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
8.4. Spare parts list paint filter set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
8.5. Spare parts list air operating valve set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
8.6. Spare parts list air regulator set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
8.7. Spare parts list suction hose set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
8.8. Spare parts list wheel cart set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
8.9. Spare parts list delivery pipe set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
8.10. Spare parts list suction pipe set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
9. DISMANTLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
9.1 Equipment storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
9.2 Dismantling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
TABLE OF CONTENTS
3

Use of the The user and maintenance manual is a document supplied with the equipment from the moment it is
manual manufactured to the moment it is destroyed. Thus, it is an integral part of the equipment.
It is necessary to read the manual before starting ANY OPERATION (including its handling) on the
equipment.
Symbols used
The operations which may involve risks, if not carried out properly, are indicated with the symbol:
The descriptions indicated beside these symbols are solely referred to equipment in compliance with
Directive “ATEX” 94/9/EC.
All operations referred to these symbols must be carried out by qualified personnel having specific
skills on safety issues concerning areas with potentially explosive atmospheres.
All the information described may jeopardize the environment as well as the safety of people if not
complied with.
In order to avoid possible risks, all operations – which need to be carried out by qualified or skilled
personnel – are indicated by the symbol.
It is recommended to provide training for all equipment operators and to make sure that all the infor-
mation supplied has been understood and implemented.
4

5
Other
symbols
Summary of the user and maintenance manual Trasporto
Description of the equipment Installation
Normal use Wiring and hydraulic diagrams
Dismantling Maintenance operations
Informative This instructions manual is an integral part of the equipment and must be readily available for the peo-
letter ple in charge of the use and maintenance of the equipment thereof.
All users and servicemen must be aware of the information contained in this manual. The descriptions
and illustrations contained herein are not binding.
Although the main features of this equipment are not subject to change, the Manufacturing company
has the right to modify, if necessary, parts, items and accessories in order to improve the equipment.
For manufacturing or commercial reasons, this may be done at any time without the need to timely
update this publication.
COMPLIANCE WITH THE STANDARDS
All units are designed in accordance with the provisions of all applicable Essential Health and Safety
Requirements of Machine Directive 98/37/EC.
Furthermore, the units are designed and built according to the Essential Health and Safety
Requirements (ESR), annex II of the ATEX Directive 94/9/EC, and are in compliance with the applica-
tions described below:
- Equipment group : II.
- Class: Gas 2G.
- Zone: Gas 1
- Maximum surface temperature: temperature class T6.
WARNING
IN ORDER TO ENSURE THAT THE EQUIPMENT AND THE SAFETY DEVICES WORK PROPERLY,
THE EQUIPMENT MUST BE INSTALLED BY QUALIFIED PERSONNEL.
WARNING
ALL RIGHTS RESERVED. THE REPRODUCTION OF ANY PART OF THIS MANUAL, IN ANY
FORM, IS STRICTLY FORBIDDEN WITHOUT PRIOR WRITTEN AUTHORIZATION OF THE MANU-
FACTURING COMPANY.
THE CONTENT OF THIS GUIDE MAY BE CHANGED WITHOUT PRIOR NOTICE. THE DOCUMEN-
TATION CONTAINED IN THIS MANUAL HAS BEEN COLLECTED AND VERIFIED CAREFULLY IN
ORDER TO MAKE IT AS COMPLETE AND COMPREHENSIBLE AS POSSIBLE.

6
WARNING
THIS USER AND MAINTENANCE MANUAL DOES NOT PROVIDE FOR ANY LACK OF PLANNING
INFORMATION.
In case of equipment failure or abnormal operation, call our TECHNICAL AND CUSTOMER SERVI-
CES.
WARNING
THE ORIGINAL CONFIGURATION OF THE EQUIPMENT MUST NOT BE CHANGED.
When equipment is delivered, make sure that:
The supply corresponds to the order information
Should there be any nonconformities, please call our technical service department immedia-
tely.
CUSTOMER SERVICE
ANEST IWATA EUROPE s.r.l.
C.so Vigevano, 46 - 10155 Torino
Telefono +39 011.24.80.868
Telefax +39 011.85.19.44
E-mail: [email protected]

7
Warranty All ANEST IWATA S.r.l. products are guaranteed for one year from the date of the invoice, unless
other written agreements have been made. The warranty covers all material and manufacturing
defects. It also includes replacing spare parts or repairing faulty parts, which will be carried out
exclusively by our workshop.
The material to repair shall be sent CARRIAGE PAID.
Repaired equipment will be sent CARRIAGE FORWARD to the customer.
The warranty does not include technical services carried out at the equipment installation site or
removal of the equipment from its present location. If one of our workers is sent on a mission, the
service will be charged according to the current prices plus all travelling expenses, if any.
The warranty does not, under no circumstances, cover any direct or indirect damage caused to
things or people by our equipment nor does it cover repairs carried out by the purchaser or by third
parties.
THE FOLLOWING IS NOT INCLUDED IN THE WARRANTY:
- Damage or failures caused by improper use / installation.
- Damage or failures caused by the use of spare parts which are different from the original or
recommended ones.
- Damage or failures caused by improper storage.
- Parts that are subject to wear (specified in the spare parts list).
WARRANTY FORFEITURE:
- In case of delayed payment or other contractual defaults.
- Whenever changes or repairs are carried out on our equipment without prior authorization.
- Whenever the serial No. has been tampered with or removed.
- When the damage is caused by improper use or handling as well as bumps and other causes
not attributable to the normal operating conditions of the equipment.
- Whenever the equipment is disassembled, tampered with or repaired without the authorization
of ANEST IWATA S.r.I.
All repairs carried out within the warranty period will not interrupt such period.
Any dispute will be solely settled at Turin’s Place of Jurisdiction.

1.1 Transport
In order to transport the equipment, it is possible to use only the following systems:
Nonetheless, make sure the transport and lifting device are able to carry the weight of the
equipment, including its packing material.
WARNING:
ALWAYS KEEP PACKAGE IN VERTICAL POSITION.
WARNING:
ALL PERSONNEL HANDLING EQUIPMENT SHOULD USE PROTECTIVE GLOVES AND
SAFETY SHOES.
WARNING:
WHEN LIFTING OR HANDLING THE EQUIPMENT OR ANY OF ITS PARTS, CLEAR THE
AREA IN WHICH THE OPERATIONS ARE CARRIED OUT, THEREBY TAKING INTO CONSI-
DERATION AN ADEQUATE SAFETY ZONE AROUND IT IN ORDER TO AVOID CAUSING
DAMAGE TO PEOPLE OR THINGS WITHIN THE WORK AREA.
1.2 Transporting items contained in cardboard boxes
The equipment is contained in cardboard boxes, wrapped in shockproof material.
8
1. TRANSPORTATION AND HANDLING

1.3 Handling
Use a handtruck for moving cardboard boxes. For moving or handling the multi spray unit, use the
handles of the handtruck only.
WARNING:
IT IS NECESSARY TO FOLLOW THE INSTRUCTIONS ON THE PACKAGE BEFORE IT IS HAND-
LED AND OPENED.
BOX HANDLING BY HAND TRUCK
HANDLING BY HANDTRUCK HANDLES
HANDLING BY HOIST
WARNING:
PRECAUTIONS TO BE FOLLOWED WHEN HAND
LING THE EQUIPMENT WITH A HOIST:
- Make sure the eyebolt (H) is well-fastened to
the plate;
- Do not move towards the unit when handling
- Avoid bumping the unit.
1.4 Temporary storage
During transport and storage, make sure that the temperature ranges between 0 – 40°C.
If the equipment needs to be stored, make sure the place it stays in is not too humid.
9
Eye bolt

2.1 Plate data
There is a manufacturer’s identification plate on the multi spray unit (see picture below).
The plate must not be removed even if the equipment will be sold again. In case the manufacturer
needs to be contacted, always mention the serial number shown on the plate.
CE marking -
Environmental limits (room temperature between + 5°C and + 40°C).
Maximum surface temperature: temperature class T6
2.2 Versions
MSU B303 MULTI SPRAY SYSTEM
Motor, type BM25046, installed on a carrier equipped with an air regulator, exchange valve, check valve,
gun atomization adjustment, stainless steel suction and delivery pipes, stainless steel compensator,
suction and delivery paint filter, material recirculation.
MSU B193 MULTI SPRAY SYSTEM
Motor type BM20046, installed on a carrier equipped with an air regulator, exchange valve, check valve,
gun atomization adjustment, stainless steel suction and delivery pipes, stainless steel compensator,
suction and delivery paint filter, material recirculation.
10
2. IDENTIFICATION OF THE PRODUCT
MAX AIR W. P.R. RATIO SERIAL NO.
0.6 MPa / 6.0 bar / 87 psi 30:1
ANEST IWATA EUROPE s.r.l.
C.so Vigevano,46
10155 Torino Italy
MANUFACTURED
MSU-B303 - MULTI SPRAY UNIT
Serial number
Model
Max. working pressure
Year of manifacture

2.3 Technical specifications
MSU B303
MODEL MSU-B303
Dimensions 555x520x847
Weight 57 Kg
Standard pump BM25046
Compression ratio 30:1
Air inlet connector Pipeholder connector for pipe Ø 16mm (inside)
Air outlet connector G1/4”
Material inlet connector G3/4”
Material outlet connector G1/4”
Maximum working pressure 6 bars
Maximum fluid pressure 180 bars
Maximum material flow rate 13 l/min
Flow rate / cycle 133 cc/cycle
Material suction filter 30 mesh
Usage temperature 5 - 40°C
Noise level 78 dB (A)
11

MSU B193
12
MODEL MSU B193
Dimensions 555x520x847
Weight 51 Kg
Standard pump BM20046
Compression ratio 19:1
Air inlet connector Pipeholder connector for pipe Ø 16mm (inside)
Air outlet connector G1/4”
Material inlet connector G3/4”
Material outlet connector G1/4”
Maximum working pressure 6 bars
Maximum fluid pressure 114 bars
Maximum material flow rate 12 l/min
Flow rate / cycle 133 cc/cycle
Working stroke 40 mm
Material suction filter 30 mesh
Usage temperature 5 - 40°C
Noise level 78 dB(A)

2.4 Safety devices
During the planning and implementation stage of the pumps, different safety devices were conside-
red necessary to ensure the safety of users, according to Paint Directive pr EN 12621.
INFORMATION ABOUT SAFETY
In situations where units need to operate in a potentially explosive atmosphere, the staff in charge
must, before starting any activity, switch off the unit and ensure that it is “out of service” and make
sure that it cannot be accidentally switched on again.
Furthermore, all additional environmental safety precautions must be taken (e.g. elimination of resi-
dual gas or dust, etc.).
SAFETY VALVE
In order to ensure that the working pressure of the pump does not exceed the limits inside the feed-
ing circuit, a 7 bar calibrated safety valve has been installed.
When the calibration pressure is exceeded, the valve opens and releases the excess air.
WARNING:
Tampering with the equipment may be dangerous for the operator as well as alter the intactness and
proper functioning of the equipment.
THREE-WAY VALVE
In case of anomalies during use, turn the lever of the three-way valve 90°. Thus it will be possible to
stop the supply and release the residual pressure inside the pump.
13
STOP POSITION
FUNCTIONING POSITION

2.5 Uses
The ANEST IWATA MULTI SPRAY pumps have been designed for painting generic ferrous
material, wood and plastic.
The MSU-B303 and MSU-B193 models are intended for solvent-based and water-based paint
with medium or high viscosity.
In order to use the equipment with specific products, it is necessary to obtain an approval from
the manufacturer as well as the adaptation of the unit’s technical specifications for processing
such products. ANEST IWATA will not be responsible for injuries caused by UNAUTHORIZED
and unskilled personnel using the equipment or using it for purposes different from those set
forth above.
WARNING:
IT IS FORBIDEN TO USE:
- HALOGENATED-HYDROCARBON SOLVENTS SUCH AS TRICHLORIDETHANE, METHY-
LENE CHLORIDE OR THE LIKE:
- INFLAMMABLE OR HIGHLY TOXIC PRODUCTS SUCH AS GASOLINES, KEROSENE,
INFLAMMABLE SOLVENTS OR COMBUSTIBLE GASES.
- HERBICIDES OR PESTICIDES.
- RADIOACTIVE FLUIDS.
14

3.1 Description of operation
Multi spray pumps are composed of two main parts: the pneumatic motor and the pumping unit;
The pneumatic motor is provided with a pneumatic piston and two air inlets for changing the
direction of motion.
IMPORTANT: it is recommended to supply the unit by using pipes with an inside diameter
of at least 15 mm.
The pumping unit is composed of two takeup hubs; two supply hubs; two lip seals, two ceramic
pistons, two lip seals; two bellows; two delivery valves.
The straight alternate movement of the motor produces an equivalent movement in the pumping
unit.
The material contained in the takeup hub (1) moves inside the supply hub (1) when the piston
moves to direction (2), thereby pressurizing the material contained in the supply hub (2) and, at
the same time, sucking in the product inside the takeup hub (2).
NOTE:
The suction pressure usable for sucking material is produced by combining the following com-
ponents:
- ceramic piston
- lip seal
- straight movement of the motor
[ this procedure is repeated when the piston moves to direction 1]
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3.OPERATION
Direction (1) Direction (2)
Fluid inlet Pneumatic piston
Intake hub (2)
Intake hub (1)
Air inlet
Bellows
Delivery hub(1) Delivery hub(2)
Paint outlet
Delivery valve
Ceramic piston
Lip seal
HYDRAULIC
MOTOR
PNEUMATIC
MOTOR

4.1 Checking the purchased product
Before using the pump, make sure it has not been damaged during transport or storage. Also check
that all standard components are inside the package.
4.2 Conditions for the installation
- The installation technician must be aware of the ATEX class of the installation area, as well as the
risks associated with the presence of a potentially explosive atmosphere, with particular attention
to explosion and fire hazards, and thereby adopt the necessary safety precautions.
- All maintenance, assembly and disassembly work must be done outside the explosion hazard area
by trained personnel.
- Also check that all accessory components comply with the Essential Safety Requirements of the
ATEX directives. Handle them with extreme care to avoid altering their characteristics.
- Clean the unit thoroughly after installation.
- To connect the multi spray unit and gun, use anti-static pipes.
The equipment must be installed by trained and authorized personnel.
However, it is recommended to follow the instructions below.
Painting must preferably take place inside a suitable spray booth equipped with a suction device.
Do not use the unit if the suction device is off.
WARNING:
IF PAINTING IS CARRIED OUT OUTSIDE THE SPRAY BOOTH, ALWAYS OPERATE IN A PLACE
WITH PROPER VENTILATION IN ORDER TO AVOID CONCENTRATING FLAMMABLE VAPOURS
COMING FROM SOLVENTS OR PAINTS.
4.3 Installation [See figure 2 and 3 page 18]
- Place the equipment on the floor, on a horizontal surface.
- Connect the air supply pipe and fasten it firmly to the ground with the supplied metal strap.
- Connect the suction pipe steadily (A) as well as the material recirculation pipe (B)
- Connect the twin pipe for the air and paint to the compensating filter and to the air regulator.
- Earth the free end of the ground cable (D) correctly.
- Connect the Multi Spray gun to the other end of the air/paint twin pipe.
- Connect the air supply pipe to the machine.
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4. INSTALLATION AND STARTUP

WARNING:
- CHECK THE PROPER TIGHTENING OF ALL FITTINGS, SINCE THEIR SUDDEN OPENING CAN
SERIOUSLY INJURE PEOPLE.
WARNING:
- CONSULT THE LOCAL CODE FOR DETAILED INSTRUCTIONS REGARDING GROUND CONNEC-
TIONS IN THE WORK AREA AND THE TYPE OF SYSTEM USED.
- THE GROUND CABLE (INCLUDED IN THE SUPPLY) MUST HAVE A MINIMUM SECTION OF 1.5
mm2.
- ONE END OF THE CABLE MUST BE EARTHED WHEREAS THE OTHER MUST BE CONNECTED
TO THE REAR PANEL OF THE PRESSURE REGULATOR (G); See figure 2 and 3 page 18]
4.4 Precautions
1. Operate the pump with air filtered by means of an air filter with a filtering section under 50 µm;
it is recommended to use a filter with automatic condensate discharge.
2. The pump must not run idle.
3. Do not spray paint or solvents towards the pump.
4. Do not install the pump near heat sources or exposed to the sun. Install it in a place sheltered
from water sprinkles.
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4.5 Multi Spray Unit MSU_B303
4.6 Multi Spray Unit MSU_B193
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FIGURE 2
FIGURE 3
Eye bolt Air inlet
Ø 15
Ground
cable (D)
Paint filter (F) Pressure regulator (G)
Working position
Three way valve (E)
Stop position
Fluid outlet G 1/4”
Recirculation
Valve (C)
Suction tube (A)
(closed)
(open)
Recirculation
tube (B)
Air outlet
G 1/4”
Eye bolt Air inlet
Ø 15
Ground
cable (D)
Paint filter (F) Pressure regulator (G)
Working position
Three way valve (E)
Stop position
Fluid outlet G 1/4”
Recirculation
Valve (C)
Suction tube (A)
(closed)
(open)
Fluid inlet G 3/4”
Fluid inlet G 3/4”
Recirculation
tube (B)
Air outlet
G 1/4”

5.1 Use
This section describes the multi spray unit use in compliance with the safety standards in force.
It is recommended to read this section carefully.
OPERATING LIMITS AND CONDITIONS
Any structural modification or mounting position of the unit is permitted only if previously authorized
by the ANEST IWATA EUROPE technical service.
Failure to meet this authorization voids the ATEX certification.
Environmental conditions
Ambient temperature: min. +5°C; max. +40°C.
The nameplate data on the maximum surface temperature, refer to measurements made in normal
ambient and installation conditions.
Even minimal variations to said conditions could significantly affect the build-up of heat.
5.2 Safety rules during use
IN ORDER TO USE the multi spray unit, CAREFULLY READ AND FOLLOW the safety instructions
below.
The manufacturing company declines all responsibility if the operator does not comply with
them. Furthermore, it will not to be held responsible for improper use of the equipment.
If the system is used improperly, it could break down, thereby causing serious damage.
- Use the multi spray unit for professional purposes only.
- Do not modify or change the system; use only Anest Iwata original spare parts.
- Check the system daily: repair or replace all worn or damaged parts immediately.
- Never exceed the maximum working pressure: 6 bar (0.6 Mpa).
- IT IS FORBIDDEN to use the equipment for purposes that are different from those descri-
bed in the use and maintenance manual. If you need any extra information, please con-
tact your Anest Iwata dealer.
- Use paints and solvents compatible with the system parts they come into contact with.
- Refer to the paint and solvent features specified by the manufacturer.
- Wear the protective clothes described in section 5.3.
- Follow all local standards on electrical safety and fire risks.
5.3 Clothes
Wear protective gloves and goggles, an oxygen mask and ear protections during work; In any case,
always follow the laws in force (e.g. LAW 626/94).
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5. USE

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5.4 Prewash [See figure 2 and figure 3 page 18]
1. Make sure the pump has been properly installed; (see paragraph 4.3).
2. Immerse the suction pipe (A) in the cleaning liquid (clean solvent or water).
3. Place the three-way valve (E) in the operating position.
4. Open the recirculation valve (C).
5. Gradually open the air pressure regulator to the minimum pressure required for the straight alter-
nate movement of the pump (about 0.5 bars).
6. Increase the air supply pressure (up to about 1.0 bar) and let the cleaning liquid flow in the recir-
culation pipe for a few minutes.
7. Close the recirculation valve (C) and clean the paint and gun pipe by keeping its trigger pulled.
8. Once you are sure the cleaning has been properly carried out, lift the dip tube from the vessel
containing the cleaning liquid and let the residual liquid flow out of the gun first, and then from the
recirculation pipe.
WARNING:
THE PUMP MUST BE CLEANED BEFORE USING IT FOR THE FIRST TIME, WHEN IT IS NOT
USED FOR A LONG TIME AND AFTER ANY COLOR CHANGE.