Tel: +353 (1) 8010009 / 087 2255566
Fax: + 353 (1) 8352901

Airless Guns - Asturo K90 - HANDBOOK
 

USE AND MAINTENANCE MANUAL

AIRLESS GUN MODEL : K90
ASTURO ORIGINALI MAVES Spa
Via F.lli Bandiera, 7
20090 Trezzano sul Naviglio (MI) ITALY
(Rev. 1 - 12/04/2000)
GB - K90 - 1.0

ISO 9001
Cert. -04985-99-AQ-MIL-SINCERT
DICHIARAZIONE DI CONFORMIT¿ / DECLARATION OF CONFORMITY
KONFORMITƒTERKLƒRUNG / DECLARATION DE CONFORMIT… DECLARACI”N DE CONFORMIDAD

ASTURO ORIGINALI MAVES Spa
Via Flli Bandiera, 7
TREZZANO S/N MILANO - ITALIA
++39 0248400326 - FAX ++39 0248402810
P.IVA / VAT (registration number) 11164500156
MODELLO / MODEL K 90
N_ di MATRICOLA / SERIAL NUMBER
ANNO DI COSTRUZIONE / YEAR OF MANUFACTURE 200
ACCESSORI IN DOTAZIONE / ACCESSORIES SUPPLIED
A.O.M spa DICHIARA sotto la sua esclusiva responsabilità che la macchina a cui la presentedichiarazione si riferisce è conforme alle prescrizioni delle seguenti direttive:

A.O.M spa DECLARES on its own responsibility that the machine to which this declaration refers conforms with the requirements in the following directives:

DIRETTIVA 89/392/CEE MODIFICATA DALLA DIRETTIVA 91/368/CEE
DALLA DIRETTIVA 93/44/CEE E DALLA DIRETTIVA 93/68/CEE (DIRETTIVA MACCHINE)
DIRECTIVE 89/392/EEC AMENDED BY DIRECTIVE 91/368/EEC
BY DIRECTIVE 93/44/EEC AND BY DIRECTIVE 93/68/EEC (MACHINE DIRECTIVE)

La macchina è inoltre conforme alle seguenti norme / The machine also conforms with following standards:

UNI EN 292/1 (november 1992) Sicurezza del macchinario, Concetti fondamentali, principi generali
di progettazione.- Terminologia, metodologia di base
Machine safety, Fundamental concepts, General design principles - Terminology, basic
methodology.

UNI EN 292/2 (november 1992) Sicurezza del macchinario - Concetti fondamentali, principi generali
di progettazione - Specifiche e principi tecnici
Machine safety - Fundamental concepts. General design principles - Technical specification and
principles.
LUOGO / PLACE:
TREZZANO S/N
COGNOME - NOME / SURNAME - NAME: BRANCHINI RIZIERI POSIZIONE / POSITION:
AMMINISTRATORE UNICO / SOLE DIRECTOR
DATA / DATE:
/ / /
FIRMA/SIGNATURE:..........................................
Dear Customer,
We want to thank you for choosing one of ASTURO ORIGINALI MAVES Spa products.

ASTURO ORIGINALI MAVES Spa is a leading reference point in the field of painting systems and machinery.
The name ASTURO ORIGINALI MAVES Spa has always meant reliability and safety and this is supported by over 70 years of experience and by our Customer satisfaction.

All our components have been designed and manufactured to guarantee the best performance ever.
To maintain the high quality level and lengthy reliability of our products throughout the years, always use original spare parts.

ASTURO ORIGINALI MAVES Spa units have the CERTIFICATION in accordance with EUROPEAN DIRECTIVE 89/392 (Machine Directive.)

We are certain we have met all safety requirements and we feel confident we have further improved working standards.
Our units, in fact, have the identification in accordance with rulings. Furthermore, they are delivered with the instruction manual and the certificatewith the Declaration of Conformity to European Directive 89/392 and to its various amendments.
The Management
HOW TO USE THE MANUAL...................
1
SYMBOLS USED...........................................
1
INFORMATION LETTER
2
1.1 PACKAGING
3
2.1 IDENTIFICATION DATA.
3
2.2 EQUIPMENT DESCRIPTION
.4
2.3 TECHNICAL FEATURES
5
2.4 STANDARD AND OPTIONAL COMPONENTS
5
2.5 PAINTS, FLUIDS AND ADEQUATE PRODUCTS
6
2.6 DIMENSIONS
6
3.1 INSPECTION OF PURCHASED PRODUCT.
7
3.2 INSTALLATION CONDITIONS
7
3.3 EQUIPMENT AND CONDITIONS NEEDED TO WORK
7
3.4 SAFETY PROCEDURES DURING USE
8
4.1 PRESSURE DISCHARGE OPERATIONS
10
4.2 ROUTINE MAINTENANCE
10
4.3 REPLACEMENT OF THE STUFFING BOX.
11
4.4 TROUBLESHOOTING
11
WARRANTY
GUN ASSEMBLING DRAWINGS
HOW TO USE THE MANUAL
The following manual is a document that accompanies the machine thouroughout its lifetime. It is, therefore, an integral part of the machine. Carefully read the following warnings and procedures before engaging in any activity with this machine, including handling and
unloading it from its transportation mean.

SYMBOLS USED
All operations which might be dangerous if not performed correctly are indicated with the following symbol:

All personnel in charge of using the machine must be thoroughly trained; all the aboveinformation must be thouroughly understood and applied.
INFORMATION LETTER

The following maintenance and instruction manual is an integral part of the machine and must always be available to the personnel in charge of using and maintaining it. The operator and the personnel in charge of handling the machine must have knowledge of the contents of the manual. The descriptions and illustrations in the manual are not to be considered as binding. Although the main features of the machine described in this manual are not subject to change, ASTURO ORIGINALI MAVES Spa 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 timeand without
updating this manual immediately.
Warning ALL RIGHTS ARE RESERVED. The reproduction of any part of this manual, in any given form, without prior written authorization from ASTURO ORIGINALI MAVES Spa, is strictly forbidden. The content of this manual can be modified without prior notice. Great care has
been taken in collecting and checking the documentation contained in this manual in order to make it as complete and comprehensible as possible. ASTURO ORIGINALI MAVES Spa machines are not designed to function in areas at risk of fires and/or explosions. For problems or information call ASTURO ORIGINALI MAVES Spa customer care technical service or your local dealer
CUSTOMER CARE TECHNICAL SERVICE
ASTURO ORIGINALI MAVES Spa
Via F.lli Bandiera, 7
20090 Trezzano Sul Naviglio (MI) ITALY
TEL. ++39 0248400326 (3 linee)
FAX. ++39 0248400695
SITO: www.asturooriginalimaves.com
E-MAIL: aomspa@tin.it
Warning
The equipment original configuration must not be modified in any way.
On receiving the equipment make sure that:
The packaging is intact and undamaged.
The supply corresponds to what has been ordered.
In case of damage please call ASTURO ORIGINALI MAVES Spa
.1.1 PACKAGING

The K90 gun is packaged in a cardboard box. All optional components are placed with the gun inside the same box. When transporting and storing the equipment make sure the surrounding temperature remains included between -15 and 40 °C (5°F and 104°F). If transportation or storage operations last 24 hours or less do not exceed 50°C (122°F) otherwise the gun could be damaged.
If the need arises to store the equipment, make sure the humidity values in the storage area remain included between 30 and 80%.

2.1 IDENTIFICATION DATA

The manufacturer identification and CE RULING n° 89/392 conformity is placed on a side of the gun (as shown below).


The K90 gun is used for high painting pressures (up to 500 bar/7100psi) and to spray paints. It is possible to obtain smooth and even large-size surfaces with this gun thanks to its micro-spraying system and reduced overspray. Its main features are lightness (510 gr/ 18 oz.) and easy use. The K90 gun, coupled with a pneumatic pump unit (K30 - K45 orK25) or an electric pump (K300 - K500 - K1000 - K20000), guarantees high transfer efficiency (over 80%) and saves considerable amounts of paint. The drawing below indicates the most important features of the gun.

2.2 EQUIPMENT DESCRIPTION



2.3 TECHNICAL FEATURES

The painting gun must be coupled with a pump with a maximum pressure of 500 bar (7100psi). ASTURO ORIGINALI MAVES Spa carries out all the necessary tests on the painting gun before delivering it to its customers.
NOZZLE SPRAY
ANGLE
30Cm SPRAY
OPENI
NG
ORIFICE
mm
ORIFICE
IN INC.
PRODUCTS FILTER
7x20 20° 13,5 0,15 0.007" CLEAR AND PIGMENTED
LACQUER, FINE ENAMELS,
STAINS
RED
200M
7x40 40° 16,5
9x20 20° 14 0,23 0.009"
9x40 40° 17,5
9x60 60° 22,5
11x10 10° 9 0.011"
0,28 NITRE, SYNTHETIC
AND
POLYUTHERANE PAINTS
YELLOW
100M
11x20 20° 14,5
11x40 40° 18,5
13x20 20° 15,5 0,33 0.013"
13x40 40° 20
13x60 60° 26,5
15x20 20° 16,5 0,38 0.015" RUST PREVENTER PAINTS
15x40 40° 21,5
18x10 10° 12,5 0,46 0.018" LATEX, THIXOTROPIC,
SPRAY STUCCOS, FILLER
PAINTS, INORGANIC ZINC,
WATER PAINTS, VERY
THICK PAINTS, PAINTS WITH
GLUES, FILLERS
WHITE
60M
18x20 20° 16,5
18x40 40° 20,5
18x60 60° 29,5
21x10 10° 13,5 0,53 0.021"
21x20 20° 18,5
21x40 40° 21,5
21x60 60° 32,5
26x10 10° 15,5 0,66 0.026"
26x20 20° 22
26x40 40° 30,5
26x60 60° 38
31x10 10° 15,3 0,79 0.031"
31x20 20° 22
31x40 40° 30,5
31x60 60° 37,5
41X40
40° 30,5 1,04 0.041" GREEN
30M
41X60 60° 37,5

2.4 STANDARD AND OPTIONAL COMPONENTS

The equipment is delivered with the following standard components:

  • 1 - Dismantling wrench.
  • 1 - Use and maintenance manual.
  • 1 - 100 ME paint filter (Yallow)
  • 1 - Declaration of conformity to CE RULINGS.
  • 1 - Warranty certificate.

On request:

  • Nozzles of various dimensions.
  • Paint filters (various meshes)
  • High pressure PUMPS (various models)
  • Connection hoses.
  • Cleaning needles.
2.5 PAINTS, FLUIDS AND ADEQUATE PRODUCTS

The K90 guns are designed to paint on walls and on iron, wood and plastic material. The materials which can be used in the gun are: emulsion, latexsynthetic paints and enamels, polyutherane, nitre, enamels, varnishes, filler paints and water paints in general. The manufacturer must authorize the use of the gun with other products and successively the unit technical features must be changed in order to function properly with the new materials. ASTURO ORIGINALI MAVES Spa is relieved of all responsibility in case of accidents resulting from the use of the eqipment by unauthorized and unqualified personnel or by personnel using the equipment differently than intended.

DO NOT USE THE PAINTING SYSTEM WITH
FLAMMABLE OR HIGHLY TOXIC PRODUCTS
SUCH AS GASOLINE, HERBICIDE AND PESTICIDE

2.6 DIMENSIONS

The gun has the following dimensions:


3.1 INSPECTION OF PURCHASED PRODUCT

Inspect the equipment before its use to check for damages caused by transportation or improper storage. Make sure that all standard and optional components have been delivered.

3.2 INSTALLATION CONDITIONS

The gun must be fed with a maximum pressure of 500 bar (7100psi). To mount the equipment proceed as follows (use the drawing below):

  • Fasten the paint inlet hose to the gun connection (A).
  • Choose which nozzles and gun filter better adapt to the operation which must be performed.
WARNING
Always use high pressure hoses to carry out all the connections. Before you start using the equipment, make sure the connections and hoses are in perfect working conditions, that is without holes, bends or splits.
WARNING
Always operate with the minimum pressure needed to obtain the results desired. Increasing pressure does not improve the painting quality, on the contrary it can
wear the nozzle.
WARNING
If the spreading rate is not optimal, do not increase the paint pressure, but replace the micro-nozzle with a larger-size one.

3.3 EQUIPMENT AND CONDITIONS NEEDED TO WORK
Painting operations MUST be carried out in an appropriate cabin equipped with a filtering system. Do not use the unit if the filtering system is not activated. Always wear protection gloves, goggles, breathing filters with active carbon and adequate clothing for the protection of the entire body. Ground all the unit components (using the given cable) because static currents could create sparks and explosions. All the equipment standard hoses are made of antistatic material

3.5 SAFETY PROCEDURES DURING USE

TO USE the painting unit STRICTLY OBSERVE the following precautions and safety criteria.
ASTURO ORIGINALI MAVES Spa declines every responsibility whatsoever in case the user does not observe said precautions and safety criteria; furthermore, it is not responsible for any kind of negligence when using the equipment. .

WARNING

Check the good functioning of the safety devices before working.The hand and the finger protections must always be mounted on the gun when operating. Always insert the safety lock placed on the trigger when interrupting the spraying, also for a short time, in order to avoid an accidental functioning of the gun. TURN THE THROTTLE 1 COUNTERCLOCKWISE to insert the trigger safety lock and CLOCKWISE to disconnect it.

HAND PROTECTION 3
. Before activating the gun, mount the hand protection correctly between the sleeve and the gun body (on the upper side) and lock it to the rotating adapter on the lower side. This safety device hinders the accidental functioning of the gun in case it is hit or falls down.

FINGER PROTECTION 2
. Always mount the finger protection on the gun in order to avoid putting your fingers or other part of the body accidentally in front of the gun.The finger protection must always be mounted with its packing. IF THE NOZZLE CLOGS UP, INSERT THE TRIGGER SAFETY LOCK IMMEDIATELY. BEFORE REMOVING MATERIAL RESIDUES AROUND THE NOZZLE, COMPLETELY DISCHARGE THE PRESSURE IN THE SYSTEM.

An improper use of the equipment and its components can cause serious
injuries.
Carefully read the technical features described in this manual and never exceed the pressure values given. Do not use worn-out or defective components, but only ASTURO ORIGINALI MAVES spare parts. Do not use the equipment other than originally designed. Carefully check the components and replace those worn-out or defective. The high working pressure can cause serious injections of toxic substances into the body. IMPORTANT: Injections must be treated by qualified medical staff as soon as possible. Inform the doctor of the paint and thinner types used.

HIGH pressure paint circulates in the hoses. Pay attention to breaks, cuts or slight leaks which can cause injections into the skin or other serious injuries. Always use high pressure hoses, check the connections before starting up the system, do not bend hoses near fittings and do not use damaged or worn-out hoses, do not attempt to repair eventual leaks. The paint flowing in the
hose at a high speed causes static electricity: always check that the system is grounded.

Always wear protective gloves, masks, breathing filters with activated carbon and adequate clothing for the protection of the entire body.

The unit is employed with paints or thinners which are higly inflammable, therefore, use the machine in well ventilated areas and avoid any action which might start a fire (eg. smoking, high temperature slags or shavings, sparks or electric elements). In order to avoid the creation of sparks due to static charges, ground the unit.

Always wear protective gloves, masks, breathing filters with activated carbon and adequate clothing for the protection of the entire body.

The unit is employed with paints or thinners which are higly inflammable, therefore, use the machine in well ventilated areas and avoid any action which might start a fire (eg. smoking, high temperature slags or shavings, sparks or electric elements). In order to avoid the creation of sparks due to static charges, ground the unit.

CHECK the chemical compatibility of the products on their technical safety charts. Further information on the materials which make up the unit are available, on request, at ASTURO ORIGINALI MAVES Spa.

The use of products which contain organic solvents might cause intoxication because of the created toxic vapours.

DO NOT USE the unit with food or medicines.

DO NOT EXCEED the indicated maximum working pressure (see section 2.3).

BEFORE starting on any dismantling, cleaning, maintenance or assembly operation

DISCHARGE the pressure in the hoses (see section 4.1).

Never aim the gun at anything other than the surface you intend to spray.
NEVER put your hand or fingers in front of the nozzle.

IMPORTANT
DO NOT USE the unit with HALOGENATED HYDROCARBON thinners (eg.Ethylchloride, Trihcloride, etc.) which might explode when coming into contactwith aluminum or galvanized parts.

4.1 PRESSURE DISCHARGE PROCEDURES
When stopping the system to carry out operations on the unit or when
stopping it at the end of the working day the high pressure inside the unit must be completely discharged.When the main air inlet is shut off, the air is automatically discharged to the pump motor.
WARNING
THE PRODUCT IN THE HIGH PRESSURE FLUID HOSE IS STILL UNDER PRESSURE.

PROCEED AS FOLLOWS:
1 Lock the trigger of the gun with the safety trigger lock.
2 Shut off the air supply to the equipment.
3 Unlock the safety trigger lock.
4 Take a metal bucket, make sure it is firmly fixed on the ground and keep the gun pressed tightly against the walls of the bucket. Pull the trigger to discharge the product.

4.2 ROUTINE MAINTENANCE
The routine maintenance of the K90 gun is simple and does not require special operations because its components do not need to be lubricated. Clean the gun daily or at the end of each working session so that product residue will not dry out on its walls, thus guaranteeing long term efficiency.
CLEANING:
Disassemble the finger protection and the micro-nozzle, the handle and thoroughly clean the filter by means of a small brush. Check that the grip
packing is not worn-out, otherwise replace it. Carefully clean the micro-nozzle, dip it in thinner to dissolve residue inside it. Blow commpressed air throught it from the front to eliminate all traces of material. The nozzle must be mounted back on with its packing. Disassemble the diffuser and thoroughly clean with a brush, in particular the ball seat.
DO NOT USE POINTED METAL OBJECTS TO CLEAN CLOGGED ORIFICES. THESE OPERATIONS WOULD DAMAGE THEM, REDUCING THEIR SPRAYING QUALITY.

THE LUBRICANTS USED MUST NOT CONTAIN SILICONE.
WARNING
IF THE NEED ARISES CALL THE ASTURO ORIGINALI MAVES Spa CUSTOMER CARE TECHNICAL SERVICE.

4.3 REPLACEMENT OF THE NEEDLE PACKING
Completely discharge the pressure in the system, disassemble the finger protection (tip guard), the nozzle, the diffuser, the rear cap, the spring and the M3 nut. Unscrew the needle from the front side of the gun by means of a 8mm (0.31 in.) wrench. Remove the piston, unscrew the packing gland nut, pull out the pressure wedge and the stuffing box and replace it (see assembling drawing).
WARNING
When screwing the needle in the piston, make sure that the needle thread bar comes out 10mm (0.39 in.) from the piston shank, otherwise functioning problems can occur.

4.3 TROUBLESHOOTING

This chapter describes how to solve the most common problems which could affect the unit.

The problem is indicated by the following symbol:
The possible cause is indicated by the following symbol:
The possible solution is indicated by the following symbol:

THE GUN SPRAYS INTERMITTENTLY
See manual of the pump used.

LOW PRESSURE OF PRODUCT COMING OUT
Dirty gun filter
Clean gun filter

UNEVEN JET
Worn or dirty micro-nozzle.
Clean the gun components carefully.
Replace damaged parts.

PAINT LEAKS OUT OF THE STUFFING BOX
Worn packing gland.
Replace the packing gland.

PAINT COMES OUT OF THE NOZZLE EVEN WHEN THE GUN IS NOT TRIGGERED
Dry paint dirties the needle ball and the diffuser ball seat.
Worn ball and ball seat.
Clean the gun parts very carefully.
Replace both the ball and its seat, using REPAIR KIT part Nr. 505000

WARRANTY

All ASTURO ORIGINALI MAVES Spa appliances are guaranteed for a period of 12 months from the date written on the invoice, unless otherwise stated in writing. The warranty covers all manufacturing faults and material defect. Replacements and repair operations are covered only if carried out by our company and at our servicing shops.
The faulty parts must be sent CARRIAGE FREE.
Once the components have been repaired they will be sent CARRIAGE PAID to the customer.
The warranty does not cover our company personnel aid during installation or dismantling operations.

If for practical purposes one of our employee is sent to the premises, 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 appliances and it does not cover repair operations carried out by the owner or by a third party.

The following are not covered by our warranty:
  • failure caused by incorrect use or assembly.
  • failure caused by external agents.
  • failure caused by lack of maintenance or negligence.
WARRANTY FORFEITURE:
If the form attached below is not filled out and returned.

In case of delayed payment or other contract defaults
.
All repair operations carried out under warranty do not interrupt its duration.

Whenever changes or repairs are carried out on our machinery without prior authorization

Whenever the unit seems tampered with, dismantled or previously repaired in unauthorized servicing shops.

Whenever the serial number is damaged or removed.

When the damage is caused by improper use or functioning, or if the machine falls, is bumped or by other causes of malfunctioning not due to normal working conditions

All disputes will be settled in the court of justice of Milan (Italy).

NAME:
_____________________________
COMPANY: _____________________________
ADDRESS: _____________________________
V.A.T. NUMBER _____________________________
UNIT MODEL: _____________________________
SERIAL NUMBER: _____________________________
DATE: _____________________________
STAMP AND SIGNATURE: _____________________________
   
Send this form fully completed (capital letters) to:
ASTURO ORIGINALI MAVES Spa
Via F.lli Bandiera, 7
20090 Trezzano sul Naviglio (MI) ITALY


GUN ASSEMBLING DRAWING


Item CODE Description
1 201500
FINGER PROTECTION - TIP GUARD
2 100030
ST NOZZLE PACKING
3 100031R
FLUID TIP DIFFUSER
4 108932R
TRIGGER GUARD
5 109033R
NEEDLE
6 212488
M4 SELF-LOCKING NUT
7 100044R
TRIGGER PIN
8 109034R
K90 GUN BODY
9 108956R
PRESSURE WEDGE
10 108955R
PACKING GLAND
11 108957R
PACKING GLAND SCREW
12 109038R
PRESSURE PISTON
13 100039R
M3 LOCK NUT
14 108940R
SPRING
15 109030R
REAR CAP
16 108954R
COMPLETE TRIGGER
17 301500
FILTER BEARING SPRING
18 100042R
GRIP PACKING
19 100043R
K90 GRIP
20 121418R
COPPER WASHER
21.1 107514
M 1/4” GAS SWIVEL
21.2 107515
M 1/4” NPT SWIVEL
21.3 107516
M 16x15 (0.62x0.58in.) SWIVEL
21.4 107502
M 1/2” JIC ROTATING SWIVEL
21.5 107508R
M 1/4” NPS SWIVEL
22 303100
100ME GUN FILTER
  100045R
19x22 (0.74x0.85 in.) WRENCH

KIT

303031 30 ME 10 GUN FILTERS KIT
303051 50 ME 10 GUN FILTERS KIT
303101 100 ME 10 GUN FILTERS KIT
303201 200 ME 10 GUN FILTERS KIT
505000 K90 REPAIR KIT (3 - 5 - 9 - 10 - 11 - 13)
 

Little Pro 540
WIWA Profit
WIWA Phoenix
WIWA Magnum
Little Pro 400
Airlessco SL 1100
Developed by Barrowvale Technology Web Design Ireland. Copyright © Barrowvale Technology Ltd 2004. All rights reserved.