Anest Iwata MSU-113 N User manual

Use and maintenance manual
MUL
MULTI SPRA TI SPRAY UNIT Y UNIT
GB
ME113NERev.13
MSU-113 N
MSU-113 N
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 , considering 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 fin-
ish at the lowest cost.
Our product range must offer the perfect balance between the use of energy and its effects to help to safe-
guard the environment.
All the Anest Iwata Europe s.r.l. staff members use their knowledge and competence to provide their cus-
tomers 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
SYMBOLS USED ...........................................................................................................................................4
INFORMATIVE LETTER................................................................................................................................ 5
WARRANTY ...................................................................................................................................................7
1. TRANSPORT AND HANDLING..........................................................................................................8
1.1 Transport………………………………………………………………………….........................................8
1.2 Transport with cardboard packing……………………………………………….......................................8
1.3 Handling………………………………………………………………….....................................................9
1.4 Temporary storage……………………………………….........................................................................9
2. PRODUCT IDENTIFICATION………………………………………………… .......................................10
2.1 Plate data………………………………………………………………… .........................................……10
2.2 Different models…………………………………………………………………………............................10
2.3 Technical specifications………………………………………………………… ...............................……11
2.4 Safety systems………………………………………………………….............................................…...12
2.5 Workable products……………………………………………………………...................................……13
3. OPERATION……………………………………………………………… ...............................................14
3.1 Operation description………………………………………………… ....................................................14
4. INSTALLATION AND START………………………………………… ..................................................15
4.1 Check on the purchased product………………………………………………… ..................................15
4.2 Conditions for the installation…………………………………………………….....................................15
4.3 Installation………………………………………………………………………. .......................................15
4.4 Cautions…………………………………………………………………………........................................16
4.5 Drawing of the multi spray unit provided with paint filter…………………………………… .................17
4.6 Drawing of the multi spray unit without paint filter…………………………………...............................18
5. USE…………………………………………………………………………...............................................19
5.1 Use ....................................................................................................................................................19
5.2 Safety rules during use .....................................................………………………………………………19
5.3 Clothes…………………………………………………………………… .................................................19
5.4 Prewash and adjustment of the upper packing ……………………… ................................................20
5.5 Start ……………………………………………………………………… .................................................21
5.6 Daily suspensions………………………………………………………… .........................................…..22
5.7 Improper and dangerous uses…………………………………………………… ..............................….22
5.8 Procedure to discharge the pressure…………………………………….........................................…..23
6. MAINTENANCE AND INSPECTION……………………………………………… .......................…….24
6.1 General notes……………………………………………………………………… ...................................24
6.2 Safety rules during maintenance………………………………… ........................................................24
6.3 Recommended programmed operations…………………………………………..................................24
6.4 Procedure to disassemble and reassemble…………………………………….. ..................................25
6.5 Disassembly of the motor unit…………………………………………………… ...................................25
6.6 Maintenance of the motor unit………………………………………………….......................................25
6.7 Re-assembly of the motor unit………………………………………………. .........................................26
6.8 Disassembly of the pneumatic motor from the fluid pump set………………………...........................30
6.9 Disassembly of the fluid pump set ....................................................................................................31
6.10 Maintenance of the fluid pump set.....................................................................................................32
6.11 Re-assembly of the fluid pump set……………………………………………. ......................................32
6.12 Re-assembly of the motor to the fluid pump set ………………………………… ................................33
6.13 Tests to carry out after the re-assembly……………………………………...........................................33
6.14 Maintenance of the paint filter…………………………………………………. ......................................33
7. MALFUNCTIONS - TROUBLESHOOTING……………………………………………………...............34
8. SECTIONS WITH SPARE PARTS LIST………………………………………… ..................................37
8.1 PLUNGER PUMP SET PP7131N……………………………………………………………… ...............37
8.2 Paint filter...........................................................................................................................................39
8.3 Drain valve.........................................................................................................................................39
8.4 Air regulator set .................................................................................................................................40
8.5 Suction hose set…………………………………………………………………. .....................................41
8.6 Cart set……………………………………………………………………………......................................42
9. DISMANTLING………………………………………………………. .....................................................43
9.1 Storage of the equipment………………………………………. ...........................................................43
9.2 Dismantling………………………………………………………………..................................................43
GENERAL CONTENTS
3

4
Use of the The use and maintenance manual is the document accompanying the equipment from its manufactu-
Manual re till its dismantling. Therefore, it is an integral part of the equipment.
The manual must be read before starting ANY ACTIVITY involving the equipment including its hand-
ling.
Symbols used
The operations which can be dangerous if they are not carried out correctly, are indicated with the
following symbol:
The warnings provided with this symbol refer to the equipment in compliance with “ATEX” 94/9/CE
Directive.
The operations provided with this symbol must be carried out by qualified staff having a specific com-
petence concerning the safety of the areas with an explosive atmosphere.
We recommend following the prescriptions to avoid serious risks for people and environment.
The operations requiring a qualified or specialised staff, to avoid any danger, are indicated with the
following symbol:
We recommend training the staff who have to use the equipment and check if everything is under-
stood and carried out.
Other
symbols
Index of the use and maintenance manual Transport
Description of the equipment Installation
Ordinary use Wiring and hydraulic diagrams
Dismantling Maintenance operations

5
Informative This use and maintenance manual is an integral part of the equipment and it must be easily available
letter to the staff in charge of its use.
The user and the maintenance man must know the content of this manual. None of the descriptions or
pictures contained in this manual are binding.
Although the main features of this equipment are not subject to change, the manufacturing com-
pany reserves the right to change those components, details and accessories it deems necessary to
improve the machine or to meet manufacturing or commercial requirements, at any time and
without updating this manual immediately.
COMPLIANCE WITH THE RULES
All the units are planned according to the Essential Safety Requirements of the Machinery Directive
98/37/CE.
Moreover the units are planned and built in compliance with the Essential Safety Requirements (ESR)
of the Enclosure II of Directive “ATEX” 94/9/CE and comply with the following classification:
- Equipment group: II.
- Class: Gas 2G.
- Area: Gas 1
- Maximum surface temperature: temperature class T6.
WARNING
TO ENSURE THE RIGHT OPERATION OF THE EQUIPMENT AND OF THE SAFETY DEVICES,
THE EQUIPMENT MUST BE INSTALLED BY QUALIFIED STAFF:
WARNING
ALL RIGHTS ARE 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 MANUAL CAN BE MODIFIED WITHOUT NOTICE. GREAT CARE HAS
BEEN TAKEN IN COLLECTING AND CHECKING THE DOCUMENTATION CONTAINED IN THIS
MANUAL TO MAKE IT AS COMPLETE AND COMPREHENSIBLE AS POSSIBLE.

6
WARNING
THIS USE AND MAINTENANCE MANUAL DOES NOT MAKE UP FOR ANY DESIGN
INADEQUACY.
In case of breakdown or malfunction, contact the TECHNICAL CUSTOMER CARE
WARNING
THE ORIGINAL CONFIGURATION OF THE EQUIPMENT MUST NOT BE CHANGED AT ALL.
On receiving the equipment check that:
The supply corresponds to the order specifications
In case of non-compliance, inform immediately our technical services.
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.I products have a one-year guarantee from the invoice date, unless otherwise
stated in writing. The warranty covers all manufacturing faults and material defects. Any spare part
replacement or repair operations are covered only if they are carried out by our technicians at our
servicing shops.
The faulty parts must be sent CARRIAGE PAID.
Once the components have been repaired, they will be sent CARRIAGE FORWARD to the custo-
mer.
The warranty covers no intervention of our technicians during installation or dismantling operations.
If for practical purposes one of our technicians is sent on site, a charge will be made for the time plus
extra for travelling and expenses.
Our warranty does not cover direct or indirect damage to people or property caused by our equip-
ment. It covers no repair operations carried out by the customer or by a third party, either.
THE WARRANTY DOES NOT COVER:
- Damage or breakdown caused by improper use or assembly.
- Damage or breakdown caused by the use of spare parts that are different from the original or
recommended ones.
- Damages or breakdown caused by bad preservation.
- Components subject to wear (described in the spare part list).
WARRANTY FORFEITURE:
- In case of delayed payment or other contractual defaults.
- Whenever changes or repairs are carried out on our equipment without prior written authorisation.
- Whenever the serial number is damaged or removed.
- When the damage is caused by improper use or functioning, or if the equipment falls, is bumped or
by other causes not due to the normal working conditions
- Whenever the unit is disassembled, tampered with or repaired without the authorisation of ANEST
IWATA S.r.I.
All repairs carried out during the warranty period, do not interrupt the warranty duration.
All disputes will be settled in the Court of Justice of Turin.

8
1.1 Transport
To transport of the equipment, use only the systems described below. In any case make sure that the
transport and the lifting device can bear the weight of the equipment with its packaging.
WARNING
ALWAYS KEEP THE PACKAGING IN A VERTICAL POSITION.
WARNING
IT IS ADVISABLE THAT THE STAFF IN CHARGE OF HANDLING THE EQUIPMENT WEAR PRO-
TECTIVE GLOVES AND SAFETY SHOES.
WARNING
WHILE LIFTING OR HANDLING THE EQUIPMENT OR ANY OF ITS COMPONENTS CLEAR THE
WORKING AREA. LEAVE ALSO A SUFFICIENT SAFETY AREA AROUND THE EQUIPMENT TO
AVOID DAMAGING PEOPLE OR OBJECTS WHICH COULD BE THERE.
1.2 Transport with cardboard packaging
The equipment is put inside cardboard packaging and wrapped with some shockproof material.
1. TRANSPORT AND HANDLING

9
1.3 Handling
To handle the cardboard packaging use a trolley. To handle or displace the multi spray unit only use
the cart.
WARNING
FOLLOW THE INSTRUCTIONS ON THE PACKAGING BEFORE HANDLING AND OPENING IT.
HANDLING BY MEANS OF CART HANDLING BY MEANS OF TROLLEY
1.4 Temporary storage
During transport and storage make sure the temperatures between 0 and 40° C are not exceeded.
In case of storage, make sure the equipment is not put in places where there is excessive humidity.

2.1 Plate data
The manufacturer’s identification plate is applied on the multi spray unit (see picture below).
It must not be removed at all, even if the equipment is resold. For any communication with the manu-
facturer always mention the serial number written on the plate itself.
CE marking –
Environmental limits (environment temperature between + 5°C and + 40°C).
Maximum surface temperature: temperature class T6
2.2 Models
MSU 113 N: MULTI SPRAY UNIT MSU 113 N – MODEL WITH PAINT FILTER
Pump type PP 7131N on cart with air regulator, gun spraying adjustment, suction pipe, delivery and
suction paint filter, fluid recirculation.
MSU 113 N: MULTI SPRAY UNIT MSU 113 N – MODEL WITHOUT PAINT FILTER
Pump type PP 7131N on cart with air regulator, gun spraying adjustment, suction pipe,
suction paint filter, fluid recirculation.
10
2. PRODUCT IDENTIFICATION
MAX AIR W. P.R. SERIAL NO.
0.68 MPa / 6.8 bar / 98 psi
ANEST IWATA EUROPE s.r.l.
C.so Vigevano,46
10155 Torino Italy
MANUFACTURED
MSU-113N MULTI SPRAY UNIT
Serial number
Model
Max. working pressure
Year of manufacture

11
2.3 Technical specifications
Model MSU-113N MSU-113N
Model Model with filter Model without filter
(Figure 1) (Figure 2)
Dimensions mm 524x500x1020 524x500x1020
Weight kg 18 Kg 16.5 Kg
Pump type PP-7131N (Model in stainless steel)
Compression ratio 13:1
Inlet air pipe fitting G1/4”
Outlet air pipe fitting G1/4”
Material inlet pipe fitting G1/2”
Material outlet pipe fitting G1/4”
Maximum working pressure 6.8 bar
Max fluid pressure 88 bar
Max. fluid delivery 1.9 l/min
Max numer of cycle per min 110 cycle/min
Delivery/cycle 17.3 cc/cycle
Fluid suction filter 50 mesh
Working temperature 5 - 40°C
Noise level 81.6 dB(A)
Compressor (required power) 0.37-1.5Kw
FIGURE 1 FIGURE 2

12
2.4 Safety systems
Several safety systems have been conceived during the multi spray unit design and manufacture to
safeguard the operator, in compliance with pr EN 12621 Directive about paint.
INFORMATION ABOUT SAFETY
In case of units, which must work in an environment with a potentially explosive atmosphere the staff
in charge, before starting its activities, must disable the unit power supply, by putting it “out of order”
and by taking precautions against any condition, which can cause an accidental restart of the unit.
Moreover, all the other necessary environmental safety measures (for example the possible gas and
residual dust decontamination etc.) must be taken.
SAFETY VALVE
An 8 bar calibrated safety valve is installed to ensure the pump working pressure does not exceed
the limits inside the feeding circuit.
If the calibration pressure is exceeded, the valve opens by releasing the excess of air.
WARNING
DO NOT REMOVE THE PLASTIC VALVE PROTECTION, ANY TAMPERING COULD BE
DANGEROUS FOR THE OPERATOR AND COULD COMPROMISE THE GOOD WORKING OF
THE EQUIPMENT.
BALL VALVE
IN CASE OF ANOMALIES DURING WORKING, TURN THE BALL VALVE LEVER 90°. IN
THIS WAY THE AIR SUPPLY WILL BE INTERRUPTED AND THE RESIDUAL PRESSURE INSIDE
THE PUMP WILL BE RELEASED.

13
Safety Some pictograms showing the safety warnings to be followed by anyone who is going to use it can
pictograms be found on the pump.
WARNING
THE MANUFACTURER IS NOT TO BE HELD RESPONSIBLE FOR DAMAGE OR ACCIDENTS TO
PEOPLE OR THINGS DUE TO NON-COMPLIANCE WITH THE PRESCRIBED RULES. THE
OPERATOR IS THE ONLY PERSON RESPONSIBLE.
2.5 Workable products
MULTI SPRAY ANEST IWATA pumps are conceived to paint ferrous material, wood and plastic.
Model MSU 113 N is used for solvent-based paints and water based pains with low or average
viscosity.
To use the equipment with special products ask for the approval of the manufacturer. Moreover, the
technical features of the unit must be adapted for processing such products. ANEST IWATA is not
responsible for any accident due to NON-AUTHORISED and non-qualified personnel using the pump
for purposes that are different from the above-mentioned ones.
WARNING
DO NOT USE:
- ANY HALOGENATED HYDROCARBON SOLVENTS, SUCH AS TRICHLORETHANE, METHYLENE
CHLORIDE OR ANYTHING SIMILAR:
- ANY FLAMMABLE OR VERY TOXIC PRODUCTS SUCH AS PETROL, KEROSENE INFLAMMABLE
SOLVENTS OR COMBUSTIBLE GASES.
- ANY HERBICIDE OR PESTICIDE
- ANY RADIOACTIVE FLUID

14
3. OPERATION
3.1 Operation description
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 with a switch for the change of the move-
ment direction.
The pumping unit is made up of an anti-wear chromium plated suction tube and rod. The packing can
be adjusted.
The motor’s straight and alternate movement creates an equivalent movement in the pumping unit.
A system of valves allows the simultaneous suction and pressurization of the product to be sprayed,
in the two chambers of the suction tube, therefore ensuring the utmost uniformity during the applica-
tion.
FIGURE 1
Pneumatic piston
Switch
Upper V packing
Product outlet
Lower V packing
Suction tube
Cylinder
Rod
Air inlet
Product inlet
MOTOR
PUMPING UNIT

4.1 Check 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 packaging.
4.2 Conditions for the installation
- The installer must know the ATEX classification of the installation area and also the risks deriving
from a potentially explosive atmosphere, especially explosion and fire, so that he can adopt the suit-
able protection measures.
- All maintenance operations, assembly and disassembly, must be performed out of the explosion-risk
area and by specialised staff.
- Check that all the accessories comply with the essential safety requirements of the ATEX Directives.
We recommend handling them carefully in order not to modify the features.
- Clean the unit once the installation has been completed.
- To connect the multi spray unit and the gun use the antistatic-type pipeline.
The equipment must be installed by a specialized and authorized staff.
In any case, follow the instructions below.
Painting must preferably take place inside a suitable spray booth equipped with 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 THE RIGHT VENTILATION TO AVOID THE CONCENTRATION OF INFLAMMABLE VAPOURS
COMING FROM SOLVENTS OR PAINTS.
4.3 Installation [ref. figure 2 page 17 and figure 3 page 18]
- Place the equipment on the floor, on a horizontal surface.
- Connect the suction hose (A) and the product recirculation hose (B)
- Connect the twin pipe for air and paint to compensating filter and air regulator.
- Earth the free end of the earthing cable.
- Connect the Multi Spray gun to the other end of the air/paint twin pipe
- Connect the air supply pipe to the installation.
15
4. INSTALLATION AND START

WARNING
- CHECK THE PROPER TIGHTENING OF ALL FITTINGS, SINCE THEIR SUDDEN OPENING
CAN SERIOUSLY INJURE PEOPLE.
WARNING
- CONSULT THE LOCAL CODE FOR DETAILED INSTRUCTIONS CONCERNING THE EARTHING
OF THE WORKING AREA AND THE TYPE OF SYSTEM USED.
- THE EARTH CABLE (INCLUDED IN THE SUPPLY) MUST HAVE A MINIMUM SECTION OF 1.5
MM2.
- ONE END OF THE CABLE MUST BE EARTHED WHILE THE OTHER MUST BE CONNECTED
TO THE COVER OF THE PNEUMATIC MOTOR PACKING.
4.4 Cautions
1. Operate the pump with air filtered by means of an air filter with filtering section smaller than
50 µm; we recommend using a filter with condensate automatic discharge.
2. Do not idle the pump.
3. Do not spray paint or solvents towards the pump.
4. Do not install the pump close to heat sources or exposed to the sun. Locate it in a place sheltered
from water sprinkles.
16

17
4.5 Multi spray unit with paint filter
FIGURE 2
Recirculation valve
(C) CLOSED
OPEN
Pressure regulator G
Stop position
Ball valve (E)
Operating position
Air inlet G 1/4"
Adjusting cup (D)
Upper packing
Suction hose (A)
Paint inlet
G 1/2"
Ground cable
Paint outlet G1/4"
Paint filter (F)
Air outlet G1/4"
Recirculation valve (C)
Recirculation hose (B)

18
4.6 Multi spray unit without paint filter
FIGURE 3
Recirculation valve
(C) CLOSED
OPEN
Pressure regulator G
Stop position
Ball valve (E)
Operating position
Air inlet G 1/4"
Adjusting cup (D)
Upper packing
Suction hose (A)
Paint inlet
G 1/2"
Ground cable
Paint outlet G1/4"
Air outlet G1/4"
Recirculation valve (C)
Recirculation hose (B)

5. USE
19
5.1 Use
This section describes the multi spray unit use in compliance with the safety standards in force. We
recommend reading it carefully.
LIMITS AND CONDITIONS OF USE
Any change of the unit can be carried out only if authorised by ANEST IWATA EUROPE technical
service. If the change is not authorised, the unit is not considered as ATEX approved.
Environmental condition
Environment temperature: min. +5°C; max. +40°C
The plate data concerning the maximum surface temperatures, refer to measurements carried out in
normal environmental conditions and installation.
Even minimum changes of these conditions can have remarkable effects on the heat development.
5.2 Safety rules during use
TO USE the multi spray unit COMPLY WITH the safety precautions and rules described below.
The manufacturing company declines all responsibility if the operator does not comply with them. It is
not to be held responsible for any carelessness during the pump use, either.
If the system is used improperly, it could be broken causing serious damage.
- Use the multi spray unit for professional purposes only.
- Do not change the system; use only Anest Iwata original spare parts.
- Check the system daily: repair or replace immediately all worn or damaged parts.
- Never exceed the maximum working pressure: 6.8 bar (0.68 MPa).
- IT IS FORBIDDEN to use the equipment for purposes that are different from the ones it is
destined to which are described in the use and maintenance manual. If in doubt, apply to
your Anest Iwata reseller.
- Use paints and solvents compatible with the system parts they come into contact with.
- Refer to the paint and solvent features mentioned by the manufacturer.
- Wear the protective clothes described in section 5.3.
- Comply with all the local standards on electric safety and fire risks.
5.3 Clothes
Wear protective gloves and goggles, an oxygen mask and ear protection during operation. Always
follow the laws in force (Ex. ITALIAN LAW 626/94).

20
5.4 Prewash and adjustment of the upper packing.
[Ref. figure 2 page 17 and figure 3 page 18]
1. Make sure the pump has been properly installed; (see point 4.3)
2. Immerse the suction hose (A), in the cleaning liquid (clean solvent or water according to the
purchased model).
3. Place the ball valve (E) in the proper position.
4. Open the recirculation valve (C).
5. Loosen the upper packing adjusting cup (D).
6. Open gradually the air pressure regulator (G) up to the minimum pressure required for the
straight and alternate movement of the pump. (about 0.5 bar).
7. Adjust the upper packing by tightening gradually the thinner cup (D) until stopping the cleaning
liquid outflow and the pump movement.
NOTE: The failure to observe this point as well as an improper initial adjustment of the packing
might reduce its duration.
8. Once the packing has been adjusted, increase the air supply pressure (up to about 2 bar) and
let the cleaning liquid flow in the recirculation pipe for a few minutes.
9. Close the recirculation valve (C) clean the paint pipe and the gun by keeping its trigger pulled.
10. Once you are sure the cleaning has been properly carried out, lift the suction hose from the ves-
sel 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, IF IT IS NOT USED FOR A
LONG TIME AND AFTER ANY COLOUR CHANGE.