alg-7 wb / alg-72 wb airless spray gun - Anest Iwata

MJ T080-00EREV.00 

GB 

ALG-7 WB / ALG-72 WB 

AIRLESS SPRAY GUN 

Before use, adjustment or maintenance, it is important to read this instruction manual very 

carefully. This manual must be stored in a safe place for any future reference that may be necessary. 

Instruction Manual 

This ANEST IWATA Airless spray guns kit complies to ATEX regulations 94/9/EC. 

Protection level: II 2 G X Suitable for using Zones 1 and 2. 

X marking: Any static electricity discharge from the Airless spray gun is to be diverted to the ground via the conductive air hose as stipulated. 

IMPORTANT 

This Airless spray gun should be operated only by an adequately trained operator, for safe use and maintenance of the equipment. 

Any misuse or handling other than those indicated in this Instruction Manual is not covered by guarantee. ANEST IWATA 

disclaims all responsibility for any accident or damage caused by failure to observe the operational and safety procedures as from 

this manual. In the interest of user friendliness, this manual contains information in a brief and concise form. 

For any additional information you may require regarding Airless spray guns operations, or if any missing parts or any damage 

during transportation is found, please contact your nearest ANEST IWATA Company (see last cover page). 

Be sure to observe warnings and cautions in this instruction manual. 

If not, it can cause paint ejection and serious bodily injury by drawing organic solvent. 

Be sure to observe following marked items which are especially important. 

WARNING 

CAUTION 

Indicates a potentially hazardous situation which, if not avoided, may result in serious injury or loss of life. 

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or property 

damage. 

ANEST IWATA Europe S.r.l. 

46, Corso Vigevano 10155, Torino Italy 

Direct Tel. +39 011 - 24 80 868 

Fax +39 011 - 22 74 406 

info@anest-iwataeu.com 

www.anest-iwataeu.com 

ANEST IWATA Italia S.r.l. 

46, Corso Vigevano 10155, Torino (Italy) 

Tel. diretto +39 011 - 24 80 868 - Fax +39 011 - 85 19 44 

info@anest-iwata.it 

www.anest-iwata.it 


SUCURSAL ESPAÑA Y PORTUGAL 

Avda.del Maresme, 44-46 Planta 2 OF. 25 / 08918 - Badalona (Barcelona) 

Tel.:+34 933 20 59 93 - Fax.:+34 933 20 55 64 - 

info@anest-iwata.es 

www.anest-iwata.es 


NIEDERLASSUNG DEUTSCHLAND 

Dorfäckerstr. 25, 74248 Ellhofen 

Telefon: +49 (0)7134- 917368 - Fax: +49 (0)7134 - 917378 

Handy: +49 (0)172 - 62 74 542 

info@anest-iwata.de 

www.anest-iwata.de 

European Sales Branches: 

ANEST IWATA Scandinavia AB. 

Ögärdesvägen 6C, 433 30 PARTILLE 

Tel. +46 (0)31 - 340 28 60 - Fax +46 (0)31 - 340 28 69 

info@anest-iwata.se 

www.anest-iwata.se 

ANEST IWATA France S.A. 

25 rue de Madrid - BP 7405 38074 St Quentin Fallavier 

Tél. +33 (0)4 - 74 94 59 69 - Fax +33 (0)4 - 74 94 34 39 

info@anest-iwata.fr 

www.anest-iwata.fr 

ANEST IWATA U.K. Ltd. 

Unit 10 Little End Road - Eaton Socon 

St. Neots - CAMBRIDGESHIRE 

PE19 8JH 

Tel.: +44 (0) 1480 405419 Fax: +44 (0) 1480 217610 

enquiries@anest-iwata.co.uk 

www.anest-iwata.co.uk 

IMPORTANT 

Indicates notes which we ask you to observe. The safety precautions in this instruction manual are the minimum 

necessary conditions. Follow national and local regulations regarding fire prevention, electricity and 

safety as well as your own company regulations. 

IMPORTANT SPECIFICATIONS 

Max. Pressure: 250 bar (3600 PSI) Max. Temperature: 

Noise Level (LAeqT) 62.9 dB (A) Atmosphere 5 ~ 40 °C 

Spray conditions: Used nozzle tip NT-3005 Air and fluid 5 ~ 43 °C 

Fluid pressure 100 bar (1440 PSI) 

Tested with water 

Measuring point: 1m backwards from gun, 1.6 m height 

TECHNICAL SPECIFICATIONS 

Model Max. Operating Use Fluid Fluid Filter Mass 

pressure Output Hose connection 

bar (PSI) ml/min. g (lbs) 

ALG-7 WB Ref. to 4. selection 

100 mesh 440 (0.97) 

250 (3600) General of nozzle tip according 

to kind of paint 

(built in) 415 

G 1/4” 

ALG-72 WB (0.91) 

Manufactured by: 

ANEST IWATA Corporation 3176,Shinyoshida-cho, Kohoku-ku, Yokohama, 223-8501 Japan

SAFETY WARNINGS 

COMMENTS 

FIRE OR EXPLOSION HAZARD 

1. Spark and open flames are strictly prohibited. 

Paints can be highly flammable and can cause fire. 

Avoid any ignition sources such as smoking, open flames, electrical goods, etc. 

2. Securely ground Airless spray gun by using fluid hose with built-in ground wire. 

Ground wire : Less than 1MΩ. Check the earth stability periodically. 

Securely ground pump, Airless spray gun, workpiece and containers containing paint or solvent. 

Be sure to use fluid hose with built-in ground wire to have continuous grounding between pump and Airless spray gun. Use conductive container 

containing paint or solvent. If not, insufficient grounding can cause fire and explosion due to static electric sparking. 

3. Never use the following HALGOGENATED HYDROCARBON SOLVENTS 

which can cause cracks or dissolution on gun body (aluminum) by chemical reaction. 

- Unsuitable solvents: methyl chloride, dichloromethane, 1.2-dichloroethane,carbon tetrachloride, trichloroethylene, 1.1.1-trichloroethane 

- Be sure that all fluids and solvents are compatible with gun parts. 

We are ready to supply a material list used in the product. 

IMPROPER USE OF EQUIPMENT 

1. Never point Airless spray gun toward people or animal. 

Never pull trigger of gun when human body or finger come near tip of nozzle tip. If done, it can cause inflammation of eyes and skin or bodily injury. 

If you feel any abnormality during operation, consult with a medical doctor immediately. 

2. Never exceed maximum operating pressure and maximum operating Temperature. 

Usage at more than max. operating pressure can cause explosion of Airless spray gun resulting in great danger. 

3. Be sure to release fluid pressures before cleaning, disassembling or servicing. 

If not, remaining pressure can cause bodily injury due to improper operation or scattering cleaning liquid. 

In order to release pressure, first stop supply of fluid and thinner to Airless spray gun. 

PROTECTION OF HUMAN BODY 

1. Use in a well-ventilated site by using spray booth. 

If not, poor ventilation can cause organic solvent poisoning and catch fire. If you feel any 

abnormality during operation, consult with a medical doctor immediately. 

2. Always wear protective gear safety glasses, mask, gloves. 

If not, cleaning liquid, etc., can cause inflammation of eyes and skin. 

If you feel something wrong with eyes or skin, immediately see a doctor. 

3. Wear earplugs if necessary. 

Noise level can exceed 85 dB(A), depending on operating conditions and painting site 

4. Be sure to stop pump, reduce fluid pressure down to 0 pressure and securely apply safety lock of 

Airless spray gun before you fit or remove nozzle tip. 

Emission of paint or solvent during operation can cause great danger. 

5.Never try to stop leaks by hand, when paint leaks. 

In that case, stop pump immediately and reduce paint pressure down to 0 pressure. 

High pressure paint emitted through small hole can pierce an iron plate and can cause severe injury since paint 

can enter human body directly through eye, mouth or skin. It is very dangerous. If you feel any abnormality or receive any injury, consult with a medical 

doctor immediately 

6.If operators pull the trigger many times during operation, it may cause carpal tunnel syndrome. 

Be sure to take a rest if you feel tired. 

7.If operators feel the pulsations in the coating material flow long time during operation, it may cause carpal tunnel syndrome. 

Be sure to take a rest if you feel tired. Or damping of the pulsations in the coating material flow from paint pump by, for instance, the use of damping 

elements on the inlet connection(s) of the equipment or the use of pulsation damping hoses supplying the equipment. 

BURST OF FLUID HOSE 

1. Never use cracked, damaged, bent or crushed fluid hose. 

High pressure paint emitted at small hole can pierce an iron plate and cause great danger. 

2. Never bend fluid hose with a radius of less than permitted bend radius. 

Contact the shop who sold the hose to you, or us, about permitted bend radius. Never put heavy things on it in order not to damage the hose. If done, 

hose can explode causing great danger. 

2 

7

SPARE PARTS LIST 

OTHER PRECAUTIONS 

1. Never alter this Airless spray gun. 

If done, it can cause insufficient performance and failure. 

2. Enter working areas of other equipment (robots, reciprocators, etc.) after machines are turned off. 

If not, contact with them can cause injury. 

3. Never spray foods or chemicals through this gun. 

If done, it can cause accident by corrosion of fluid passages or adversely affect health by mixed foreign matter. 

4. Securely connect fluid hose. 

If hose is disconnected during operation, hazardous hose movement and paint ejection will cause severe bodily injury. 

5. If something goes wrong, immediately stop operation and find the cause. Do not use again until you have solved the problem. 

NAME OF COMPONENTS AND CHECKING THE PRODUCT 

ALG 7 WB 

NOZZLE HOLDER 

SAFETY LOCK 

(knob) 

ALG 72 WB 

BRUSH FOR CLEANING 

TRIGGER 

HANDLE 

HAND 

GUARD 

SAFETY GUARD 

UNIVERSAL JOINT 

G 1/4 

6 

Marked parts are consumable parts 

DESCRIPTION 

REF.PART 

HAND GUARD 1 

NOZZLE HOLDER 2 

NOZZLE GLAND SET 3 

SAFETY GUARD 4 

GUN BODY 5 

NEEDLE SEAT 6 

NEEDLE SET 7 

NEEDLE BAR SET 7-1 

CONICAL SPRING HOLDER 7-2 

CONICAL SPRING WASHER 7-3 

PACKING HOLDER 7-4 

SUB PACKING 7-5 

NEEDLE PACKING 7-6 

NEEDLE PACKING SEAT 7-7 

NEEDLE SPRING HOLDER 7-8 

SCREW 7-9 

NEEDLE SPRING 8 

NEEDLE SPRING SEAT 9 

DESCRIPTION 

REF.PART 

PACKING 10 

FILTER SET 11 

HANDLE (grooved, black) 12-1 for ALG7 WB 

HANDLE (round, silver) 12-2 for ALG72 WB 

UNIVERSAL JOINT (G 1/4”) 13 

TRIGGER STUD 14 

HEX. CAP NUT 15 

TRIGGER SET 16-1 ALG 7 WB 

TRIGGER SET 16-2 ALG 72 WB 

CAUTION PLATE 17 

OUTER HANDLE 18 ALG 72 WB 

SNAP RING 19 ALG 72 WB 

NAME PLATE 20-1 ALG 7 WB 

NAME PLATE 20-2 ALG 72 WB 

• When you open the package, be sure to check that all goods are included and are in good condition. 

• If there is any damage or missing components, do not use the product to avoid danger and immediately contact the distributor who 

sold it to you. 

• Always keep caution plates (warning display) in good condition and clean. 

If they are damaged or missing, replace with new ones. 

PAINTING JOB 

CONNECT FLUID HOSE 

UNIVERSAL JOINT 

G 1/4 

WARNING 

Securely connect fluid hose. When paint leaks, never try to stop it by hand / In that case, stop pump immediately and reduce 

paint pressure down to 0 pressure. 

Be sure to use fluid hose with built-in ground wire in order to connect ground. 

CAUTION 

Before using a new Airless spray gun, clean inside of the new Airless spray gun. If not, rust preventive oil inside airless 

spray gun can cause painting failure. 

3

FITTING OR REMOVING NOZZLE TIP OR FREE PATTERN TIP (each tip optional). 

*Refer to 4 and prepare nozzle tip separately. 

WARNING 

Be sure to stop pump, reduce fluid pressure down to 0 pressure and securely apply safety lock of Airless spray gun before 

you fit or remove nozzle tip. 

WHEN USING NOZZLE TIP 

1. Apply safety lock 2. Fit tip nozzle and 3. Adjust nozzle tip position 4. 

tighten nozzle 

with 200 mm monkey 

holder 

wrench. 

Locked 

position 

WHEN USING FREE PATTERN TIP 

PAINTING JOB 

NOZZLE TIP 

NOZZLE HOLDER 

1) Apply safety lock 

2) Remove hand guard 

3) Remove nozzle holder and fit free 

pattern tip 

4) Fit hand guard 

WARNING 

During painting, be sure to wear protective cover such as glasses, mask or gloves to avoid serious injury caused by paint or 

solvent which might enter your eyes or you might inhale. 

ATTENTION 

As fluid pressure increases, paint mist becomes finer and finishing becomes better. But on the other hand, high pressure 

can be dangerous and precipitate corrosion of equipment and nozzle tip. Adjust pressure as low as possible as far as finish 

is satisfactory. 

CLEANING AND MAINTENANCE 

Fully clean after job is finished in order to get longer lifetime and good performance at next job. 

WARNING 

During painting, be sure to wear protective cover such as glasses, mask or gloves to avoid serious injury caused by paint or 

solvent which might enter your eyes or you might inhale. 

Be sure to stop pump and reduce fluid pressure down to 0 pressure before disassembling Airless spray gun. 

Only an experienced person who is fully conversant with the equipment can do maintenance and inspection. 

CAUTION 

Never use commercial or other parts instead of ANEST IWATA original spare parts. 

Put hand guard in parallel 

with nozzle tip. 

How to remove hand guard 

Pull it upwards and 

then in 

direction of arrow. 

Hand guard 

Process Where to clean How to clean Remarks 

1 nozzle tip Remove nozzle tip from Airless spray gun and clean it. 

2 inside of Clean inside of Airless spray gun with 

gun body 

cleaning liquid which is compatible with paint being used. 

3 filter set 1. Remove No.12 handle from gun body. 

2. Remove and clean No.11 filter set. 

SELECTION OF NOZZLE TIP ACCORDING TO KIND OF PAINT 

 

Pattern width 25 cm at 30cm spray distance. 

Fluid output 0.7ml/sec/cm of width at fluid pressure 98 bar/1421PSI. 

NT - 25 07 

Use nozzle tip with large figures of last 2 digits when you spray paints of high viscosity or easily clogged. 

USAGE KIND OF PAINT MODEL REMARKS 

(NT-0000) 

Shipbuilding Rubber chloride paint, 2507-4009 Commonly used 

Ship-bottom paint 

Tar epoxy paint 3011-4013 Last two digits are large due to high viscosity. 

Zinc rich paint (organic) 2507-4009 Commonly used 

Zinc rich paint (non-organic) 3019-4016 Last two digits are large because it is easy to clog. 

Construction Water base (emulsion paint), 2505-4007 Commonly used 

Ready mixed paint 

Steel frame Anti-corrosive paint 1507-2513 First two digits are small, and last two digits are large, 

for angle iron. 

Woodwork Clear lacquer, 1503-3005 Commonly used 

Synthetic resin varnish 

Common metal Lacquer, Melamine 1504-4007 Commonly used 

PROBLEMS AND REMEDIES 

IMPORTANT : As for * marked items, ask our distributor to remedy it for you. Incorrect remedy cannot achieve satisfactory 

performance. 

Problem Cause Remedies 

Paint does not Nozzle tip is clogged. Clean nozzle tip and remove foreign matter from hole by 

come out. 

needle. 

Paint is not fed. 

Inspect pump. 

Filter set [11] is completely clogged. Clean or replace. 

Paint comes out Pump pressure is low. Increase pump pressure. 

weakly. Filter set [11] is clogged. Clean or replace. 

Nozzle tip is worn or number of nozzle Replace with new tip or proper sized tip. 

tip is too large. (Pump capacity is small 

compared with nozzle tip being used.) 

Paint does not Pump pressure is too high. Reduce paint pressure down to 250 bar (3.600 PSI) 

stop smoothly. Paint sticks to needle packing [7-9]. Disassemble,clean or replace parts.* 

(Paint leaks from Paint sticks to needle seat [6]. Disassemble,clean or replace parts.* 

the gun tip). Seat between needle bar set [7-1] Disassemble,clean or replace parts.* 

and nozzle gland set [3] is worn. 

Paint leaks from Needle packing seat [7-7] is loose. Tighten needle spring holder [7-8]. 

needle spring seat Wear or damage of needle packing [7-6] Disassemble,clean or replace parts.* 

[9] or needle seat [6]. Wear or damage of needle bar set [7-1] Disassemble,clean or replace parts.* 

Paint leaks from univer- Wear of packing in universal joint Replace universal joint. 

sal joint [13] 

4 

5

alg-7 wb / alg-72 wb airless spray gun - Anest Iwata

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