Anest Iwata NEW 77 User manual

Fluid nozzle Atomizing Air Consumption Fluid Pattern Air cap Mass
Model
Orifice Size Air pressure Output Width Mark
mm (in) bar (psi) l/min (cfm) ml/min. mm (in) g (lbs)
NEW 77 Pressure feed
NEW 77 0 1.2 (0.047) 430 (15.2) 480 445 (17.4) 0
NEW 77 Suction feed
NEW 77 1S 1.5 (0.059) 185 (6.3) 255 210 (8.2) 1
NEW 77 2S 2.0 (0.079) 250 (8.8) 345 255 (10.0) 2
NEW 77 3S 2.5 (0.098) 325 (11.5) 435 280 (11.0) 3
NEW 77 Gravity feed
NEW 77 1G 1.5 (0.059) 185 (6.3) 285 230 (9.0) 1
NEW 77 2G 2.0 (0.079) 250 (8.8) 390 290 (11.3) 2
NEW 77 3G 2.5 (0.098) 325 (11.5) 485 330 (12.9) 3
IMPORTANT
This 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 man-
ual. In the interest of user friendliness, this manual contains information in a brief and concise form.
For any additional information you may require regarding 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).
IMPORTANT SPECIFICATIONS
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 Indicates a potentially hazardous situation which, if not avoided, may result in serious injury or loss of life.
CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or pro-
perty damage.
IMPORTANT Indicates notes which we ask you to observe. The safety precautions in this instruction manual are the mini-
mum necessary conditions. Follow national and local regulations regarding fire prevention, electricity and
safety as well as your own company regulations.
TECHNICAL SPECIFICATIONS
Manufactured by:
ANEST IWATA Corporation 3176,Shinyoshida-cho, Kohoku-ku, Yokohama, 223-8501 Japan
Instruction Manual
Max. Pressure: 6.8 bar (98 PSI) Max. Temperature:
Noise Level (LAeqT) 82.1 dB (A) Atmosphere 5 ~ 40 °C
Spray conditions Recommended Air and fluid 5 ~ 43 °C
Measuring point 1m backwards from gun, 1,6 m height Air connection: G 1/4”
Fluid connection: G 3/8”
This ANEST IWATA 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 spray gun is to be diverted to the ground via the conductive air hose as a stipulated.
*1 Atomizing air pressure means air pressure at gun inlet when trigger is pulled and air flows.
NEW 77 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.
GB
MJ1672-01EREV.00
3.5 (50) 550
(1.22)
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
[email protected] www.anest-iwata.it
ANEST IWATA Europe S.r.l.
SUCURSAL ESPAÑA Y PORTUGAL
Avda.del Maresme, 44-46 / 08918 - Badalona Barcelona
Móvil. [phone] [email protected]
ANEST IWATA Europe S.r.l.
NIEDERLASSUNG DEUTSCHLAND
Dorfäckerstr. 25, 74248 Ellhofen
Telefon: [phone] - Fax: [phone] - 917378
Handy: +49 (0)172 - 62 74 542
[email protected] www.anest-iwata.de
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
[email protected]
www.anest-iwataeu.com
ANEST IWATA Scandinavia AB.
Ögärdesvägen 6C, 433 30 PARTILLE
Tel. +46 (0)31 - 340 28 60 - Fax +46 (0)31 - 340 28 69
[email protected] 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
[email protected] www.anest-iwata.fr
ANEST IWATA U.K. Ltd.
Unit 2, Cedar Trade Park,
Ferndown Industrial Estate,
Wimborne, Dorset - BH21 7SB U.K.
Tel. [phone] - 89 59 99 - Fax: [phone] - 89 56 66
[email protected] www.anest-iwata.co.uk
European Sales Branches:

72
SAFETY WARNINGS
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. 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.
3. Securely ground spray gun by using air hose with built-in ground wire.
Ground wire : Less than 1MΩCheck the earth stability periodically.
If not, insufficient grounding can cause fire and explosion due to static electric sparking.
1. Never point gun towards people or animals.
If done, it can cause inflammation of eyes and skin or bodily injury.
2. Never exceed maximum operating pressure and maximum operating Temperature.
3. Be sure to release air and fluid pressures before cleaning, disassembling or servicing.
If not, remaining pressure can cause bodily injury due to improper operation or scattering of cleaning liquid.
In order to release pressure, first stop supply of compressed air, fluid and thinner to spray gun. Then remove
fluid adj. knob and pull fluid needle set towards you.
4. Tip of fluid needle set has a sharp point.
Do not touch the tip of fluid needle during maintenance for the protection of the 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.
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. 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.
1. Never alter this 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.
COMMENTS
FIRE OR EXPLOSION HAZARD
IMPROPER USE OF EQUIPMENT
PROTECTION OF HUMAN BODY
OTHER PRECAUTIONS

DESCRIPTION REF.PART
AIR CAP SET 1
FLUID NOZZLE 2
FLUID NOZZLE PACKING SET 3
FLUID NEEDLE PACKING 3-1/ 3-2
NEEDLE PACKING NUT 4
SPREAD ADJ. VALVE SET 5
O RING 5-1
STOPPER 5-2
GASKET 6
FLUID NEEDLE GUIDE 7
FLUID ADJ. KNOB 8
FLUID NEEDLE SPRING 9
FLUID NEEDLE SET 10
O RING 11
GUN BODY 12
AIR NIPPLE 13
AIR ADJ. VALVE SET 14
STOP RING 15
TRIGGER STUD 16
TRIGGER 17
AIR VALVE SPRING 18
AIR VALVE 19
AIR VALVE SEAT SET 20
FLUID NIPPLE 21
SPANNER 22
BRUSH 23
36
SPARE PARTS LIST
Marked parts wearable parts.
NOTE: When ordering parts, specify gun’s
model, part name with ref.No. and marked
No.of air cap set, fluid nozzle and fluid nee-
dle.When replacing fluid nozzle or/and fluid
needle for pressure feed application, please
order nozzle needle set.
SPARE PARTS LIST
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. If something goes wrong, immediately stop operation and find the cause. Do not use again until you have solved the
problem.
HOW TO CONNECT
1. Connect an air hose to air nipple tightly.
2. Connect a fluid hose or a container to fluid nipple tightly.
3. Flush the gun fluid passage with a compatible solvent.
4. Pour paint into container, test spray and adjust fluid output as well as pattern width
HOW TO OPERATE
Suggested air pressure is 3.5 bar (50 PSI)
Recommended paint viscosity differs according to paint property
and painting conditions. 15 to 23 sec. / Ford cup#4 is recommendable.
Keep fluid output as small as possible to the extent that the job will
not be hindered. It will lead to better finishing with fine atomization.
Set the spray distance from the gun to the work piece as near as
possible within the range of 200-250 mm (8-10 in).
The gun should be held so that it is perpendicular to the surface of the workpiece at all times. Then, the gun should move in a straight
and horizontal line. Arcing the gun causes uneven painting.
CAUTION
- Use clean air filtered through air dryer and air filter. If not, dirty air can cause painting failure.
- When you use this gun for the first time after purchasing, adjust fluid needle packing set.
Slowly tighten fluid packing seat and loosen a bit when fluid needle set does not return
smoothly, and adjust so that fluid needle set smoothly moves.
- When you use this gun for the first time after purchasing, clean fluid passages spraying thin-
ner and remove rust preventive oil.
If not, remaining preventive oil can cause painting failure such as fish eyes.
- Firmly fix hose or container to spray gun. If not, disconnection of hose and drop of container
can cause bodily injury.
OTHER PRECAUTIONS
200-250 mm
8-10 in
Fluid nozzle Fluid needle set
Orifice Mark Mark
mm(in)
1.2 (0.047) 0 0
1.5 (0.059) 1 1
2.0 (0.079) 2 2
2.5 (0.98) 3 3
FLUID NOZZLE-FLUID NEEDLE SET
COMBINATION

54
PROBLEMS AND REMEDIES
Problem Where it Parts to be Cause Remedy
occurred checked Retighten Adjust Clean Replace
Air leaks Air valve set Air valve *Dirt or damage on seat x x
(from tip
of air cap) Air valve seat set *Dirt or damage on seat x x
*Wear on air valve spring x
O ring *Damaged or deteriorated x
Paint Fluid nozzle Fluid nozzle - *Dirt, damage, wear
leaks fluid needle set on seat x x
*Loose fluid needle
adj. knob x
*Wear on needle spring x
Fluid nozzle - *Insufficient tightening x
gun body *Dirt or damage on seat x x
Fluid needle - *Needle does not return due
packing set to packing set too tight x x
*Needle does not return due
to paint buildup
on fluid needle x x
Fluid needle Needle packing *Wear x x
set - needle set
Packing seat *Insufficient tightening x
Paint does not Tip of gun Fluid adj. knob *Insufficient opening x
flow Tip hole of nozzle *Clogged x
Paint filter *Clogged x x
TROUBLESHOOTING
Spray Pattern Problems Remedies
1.Air enters between fluid nozzle and 1. Remove fluid nozzle to clean seat.
Fluttering tapered seat of gun body. If it is damaged, replace nozzle.
2.Air is drawn from fluid needle packing set 2. Tighten fluid needle packing.
3.Air enters fluid container fitting nut or fluid 3. Fully tighten joint section.
hose joint.
1.Paint buildup on air cap partially 1. Remove obstructions from horn holes with
Crescent clogs horn holes. Air pressure from attached brush. But do not use metal
both horns differs. objects to clean horn holes.
1.Paint buildup or damage on fluid nozzle cir- 1. Remove obstructions.
Inclined cumference and air cap center. Replace if damaged.
2. Fluid nozzle is not properly fitted. 2. Remove fluid nozzle, clean seated section
1.Paint viscosity too low. 1. Add paint to increase viscosity.
Split 2.Fluid output too high. 2. Tighten fluid adj. knob to reduce fluid output
or turn pattern adj. knob clockwise.
Heavy 1. Paint viscosity is too high. 1. Add thinner to reduce viscosity.
Center 2. Fluid output is too low. 2. Turn fluid adj. knob counter-clockwise to
increase fluid output.
1.Fluid nozzle and fluid needle set are 1. Clean or replace fluid nozzle and fluid
Spit not seated properly. needle set.
2.The first-stage travel of trigger 2. Replace fluid nozzle and fluid
(when only air discharges) decreases. needle set.
3. Paint buildup inside air cap set. 3. Clean air cap set.
MAINTENANCE AND INSPECTION
Step-by-step procedure Important
1.Pour remaining paint to another container. Clean fluid passages and air cap set. 1. Incomplete cleaning can fail pattern shape and uniform particles.
Spray a small amount of thinner to clean fluid passages. Especially clean fully and promptly after use with two-component paint.
2.Clean each section with brush soaked with thinner and wipe out with waste cloth. 2. Do not immerse the whole gun in thinner. If done, it can damage parts.
When cleaning, never scratch any holes of air cap set and fluid nozzle, and
fluid needle set.
3. Before disassembly, fully clean fluid passages. 3. During disassembly, do not scratch seat section.
(1) Disassemble fluid nozzle. (1) Remove fluid nozzle after removing fluid needle set or while keeping
Use ring spanner , box wrench or optional exclusive spanner, to disassemble fluid fluid needle pulled, in order to protect seat section.
nozzle.
(2)Disassemble fluid needle set. (2)Pull fluid needle set after loosening fluid needle packing set to protect fluid
Remove fluid adj. knob and pull out fluid needle set from gun body. needle packing set.
Pay attention so that spring does not suddenly fly out since fluid adj. knob is Be careful when handling tip of fluid needle set since it is sharp.
strongly pushed by fluid needle spring and piston spring.
4.To adjust fluid needle packing set, while keeping fluid needle set inserted, tighten 4.Too much tightening of fluid needle packing set can cause bad movement of
fluid needle packing seat by hand and then tighten further by spanner. fluid needle set and fluid leakage from the tip of fluid needle set.
When replacing fluid needle packing set,
be careful that the top old packing
does not remain inside
6.Turn pattern adj. knob or air adj. knob counterclockwise to fully open. And then 6. If pattern adj.Knob or air adj. Knob are not fully opened, tip of it can contact
tighten pattern adj set or air adj. set. and damage fluid nozzle and cause seizure of thread.
Where to inspect Parts replacement standard
1. Each hole passage of air cap and fluid nozzle Replace if it is crushed or deformed.
2. Packing and O ring Replace if it is deformed or worn out.
3.Leakage from seat section between fluid nozzle and fluid needle set Replace them if leakage does not stop after fully cleaning fluid nozzle and
fluid needle set.
If you replace fluid nozzle or fluid needle set only, fully match them and
confirm that there is no leakage.
WARNING
First release air and pressure fully according to item No. 3 of “Improper use of equipment” of WARNING on page 2.
- Tip of fluid needle set has a sharp point. Do not touch the tip of needle valve during maintenance for protection of
the human body.
- Be careful not to damage the tip of the fluid nozzle or put your hand on it.
- 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.
- Never immerse the whole gun into liquid such as thinner.
- Never damage holes of air cap fluid nozzle or fluid needle.
Tip of fluid needle pack. set