Anest Iwata ALS-653 User guide

EN
USE and MAINTENANCE INSTRUCTION MANUAL
•ALS-653
•ALS-653 N
45:1
•ALS-663
•ALS-663 N
63:1
AIRLESS
UNITS
HIGH PRESSURE

■ Important information - Safety precautions
・ This product is exclusively for coating purpose. Do not use it for other purposes.
• Be sure to read and understand this instruction manual. The operator shall be fully
conversant with the requirements stated within this instruction manual including important
warnings, cautions and operations.
・ Wrong operation (mishandling) can cause serious bodily injury, death, fire or explosion.
Keep this instruction manual in an appropriate place for immediate
reference.
● Safety factor
・ The safety precautions in this instruction manual are the minimum necessary conditions.
Follow
nationalandlocalregulationsoffirefighting,electricityandsafetyaswellasyourowncorporate
regulations.
・ Pay special attention to items which are shown by the marks and symbols below.
・ The marks and symbols mean as follows:
Marks of warnings and cautions
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 property
damage.
Examples of symbols
Indicates [you must be careful]. We will explain briefly in or near the symbol.
(The example on the left is [Be careful about ventilation].)
Indicates [you must not do]. We will explain briefly in or near the symbol. (The
example on the left is [Do not touch]).
Indicates [you must do]. We will explain briefly in or near the symbol.
(The example on the left is [Be sure to wear protective mask].)
We shall not be responsible for any injury or damage caused by disregard of warnings,
cautions or instructions.
●Supplementary notes
Important
Indicates notes which we ask you to observe. They are helpful to achieve
full performance and function of the equipment.
Hint Indicates helpful knowledge or advice.

1
■ Contents
Important information-Safety precautions
1. Safetyprecautions ・・・・・・・・・・・ 2
2. Check the product ・・・・・・・・・・ 4
3. Specifications ・・・・・・・・・・・・・ 5
4. Names of each section ・・・・・・・・・ 8
5. Beforeoperation ・・・・・・・・・・・ 9
6. Preparation for operation ・・・・・・・ 11
7. Paintingjob ・・・・・・・・・・・・・ 12
8. Interruptionofjob ・・・・・・・・・・ 15
9. Cleaning ・・・・・・・・・・・・・・ 16
10. Daily inspection and maintenance ・・・ 20
11. Problemsandremedies ・・・・・・・・ 21
12. PartsList ・・・・・・・・・・・・・・・ 23
13. Selection of nozzle tip ・・・・・・・・・ 33

2
■ 1 ． Safety precautions
WARNING
Wear protective gear.
・Be sure to always wear protective gear such as proper glasses, mask and gloves.
If not, paint or solvent can enter eyes or lungs.
・Wear earplugs during operation.
Continuous operation for a long time can cause auditory damage.
Pay attention to ventilation.
・Be sure to use at a well-ventilated site.
Use at badlyventilated or narrowsite can cause organic solventpoisoning by sprayed mist and
solvent.
If you feel something wrong with your body during operation, immediately see a doctor.
Pay attention to high pressure of paint.
・Never point toward a person or animalor pull trigger of gun when human body or fingers
come near tip of gun.
Pay attention to sliding section of pump.
Do not touch sliding section (rod) during pump operation.
If done, hand can be entangled.
Danger of wrong operation
•Before fitting or removing nozzle tip at tip of airless gun, be sure to stop pump,
open drain valve, reduce fluid pressure down to “0” and apply safety lock.
•When paint leaks from airless gun, fluid hose and joint section, never try to stop
leakage by hand. In such a case, immediately stop air supply and stop pump
operation. If done, paint or solvent can enter human body through eyes, mouth and skin,
which is very dangerous.
Limit of fluid to be used
・Do not use it for food products.
As pump parts are not suitable for food products, foreign matter entering through parts can cause
health problems.
Keep away from origins of explosions and fires.
・Never use near sparks or open fire. Especially the following will cause fire.
・Open flames such as cigarettes, pipes.
・Electric goods such as stoves, lamps, or heaters.
Connect groundings.
・Securelyground pump, airless spray gun, workpieces and containers containing paint or solvent.
Especially be sure to use Anest Iwata's designated nylon air hose with built-in ground wire to
have continuous grounding between pump and spray gun, or connect grounding separately.
・Insufficient grounding will cause explosion or fire if exposed to a spark of electricity.

3
WARNING
Be careful about explosion.
・
Be sure to use airless unit at less than max. fluid operating pressure.
Usage at more than max. fluid operating pressure can cause explosion of pump resulting in
great danger.
・
Be sure to operate connected airless gun, fluid hose and each piece of equipment below its specified
max. operating pressure.
Refer to the instruction manual of each piece of equipment.
・
Never bend hose with a radius of less than ５０ｍｍ or put heavy things on it.
If done, hose can explode causing great danger.
High pressure paint ejected through small hole caused by damage can penetrate even steel plate.
・
Securely connect hose to avoid leakage and looseness.
If hose is disconnected during operation, hazardous hose movement and paint ejection can cause severe bodily
injury.
・
Never use the following hoses. They can explode during operation, causing great danger.
・cracked ・damaged
・bent ・crushed and distorted
Others
・If you find something wrong, immediatelystop operation and study its reason. Do not use it again
till the problem is solved.
CAUTION
・When you do not use it, keep fluid pressure at “０”.
・If not, paint can eject during disassembling or doing maintenance.
・Never use the following halogenated hydrocarbon solvents:
• methyl chloride, dichloromethane, 1.2－dichloroethane, carbon tetrachloride,
• trichloroethylene,1.1.1－trichloroethane, which can cause cracks or dissolution on gun body
(aluminum) by chemical reaction.
（Be sure that all fluids and solvents are compatible with gun parts. We are ready to supply a
material list used in the product.）
・ Supply clean air.
Use clean air filtered through dryer and filter （finer than ５０ micron）.
If not, it can cause pump failure.
・ Never alter equipment.
When replacing parts, be sure to use our genuine parts.
If not, it can cause insufficient performance or failure.

4
■2 Check the product
・ Check to make sure that the products are as ordered, and that they have not
been distorted or damaged during transportation.
(
※
) CE-EX MARKING
・ Equipment group: Ⅱ
・ Category: Gas2G
・ Area:Gas
・ Max ． surface temperature :temperature class T6
・ ENVIRONMENTAL LIMITS
（Environmental temperature
between -20℃and + 40℃）
・ If there is some damage or something is lost during transportation, do not use the
product, and contact the shop which sold it to you.
REF
DESCRIPTION
1
DENOMINATION
2
MODEL
3
COMPRESSION RATIO
4
SERIAL NUMBER
5
CE-EX MARKING (
※
)
6
MAX. AIR WORKING PRESSURE
7
MANUFACTURER IDENTIFICATION

5
■3 Specifications
３－１．Specifications
※ If it is impossible to connect air hose to bamboo joint, remove quick plug from air inlet and use Rc
1/2 thread.
Items Specifications
Product model ALS-653 ALS-653N ALS-663 ALS-663N
Type
for solvent
based paint
for water
based paint
for solvent
based paint
for water
based paint
Max. working pressure
MPa / bar / PSI
27.0 / 270 / 3916 37.8 / 378 / 5482
Theoretical pressure
ratio
45:1 63:1
Max. operating air
pressure
MPa / bar / PSI
0.6 / 6 / 86
Max. fluid output
l/min
12.5 11.0
Stroke length
mm
120
Fluid output per
cycle/ml
250 220
Max. Nos. of cycle
cycle/min
50
Air hose connection １５ｍｍ
bamboo joint with quick coupler
connect to air hose of inner dia. １／２“
Fluid output G1/4B
Drain output 1/4” hose joint
Suction hose
connection
G1/2B
L×W×H
mm
800 × 730 × 1200
Mass kg 86 98 86 98
mesh of intake filter #30
mesh of fluid
intermediate filter
#60
Permissible atmosphere
temperature range
℃
5～40
Permissible fluid
temperature range
℃
5～43
Noise level dB(A)
93

6
0.6MPa
0.6MPa
0.45MPa
0.45MPa
0.3MPa
0.3MPa
0.6MPa
0.45MPa
0.3MPa
0.6MPa
0.45MPa
0.3MPa
Air consumption l/min
No. of cycle
cycle/min
Fluid pressure Mpa
3-2. Pump performance curve
ALS-653/653N ALS-663/663N
60
40
20
0
0 2 4 6 8 10 12 14
40 8000
60
40
20
0
0 2 4 6 8 10 12 14
40 8000
35 7000 35
30 6000 30
25 5000 25
20 4000 20
15 3000 15
10 2000 10
7000
6000
5000
4000
3000
2000
5
0
0 2 4 6 8 10 12 14
Fluid output ｌ/min
1000
0
5
0
0 2 4 6 8 10 12 14
Fluid output l/min
1000
0
※0.3/0.45/0.6MPa in graphs
show air pressure. Fluid pressure
Air pressure
No. of cycle
Fluid pressure Mpa
No. of cycle
cycle/min
Air consumption l/min

7
3-3. Safety systems
Safety valve
A 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.
Three-way valve
In case of anomalies during operation, turn the three-way valve lever 90°clockwise.
In this way, the air supply will be interrupted and the residual pressure inside the pump
will be released.

8
■4.Names of each section
As for details of each part , refer to ■12 Parts list.
■5.Before operation
5-1. Installation, connection and inspection
WARNING
・ Securelygroundpump,airlessgun,workpiecesandcontainerscontainingpaintor
solvent.
・ UseAnestIwata'sdesignatednylonhosewithbuilt-ingroundwiretoconnect
groundingbetweenpumpandspraygun. Insufficientgroundingwillcause
explosionorfireifexposedtoasparkofelectricity.
・ Securely connect hose to avoid leakage and looseness.
If hose is disconnected during operation, hazardous hose movement and paint ejection
can cause severe bodily injury.

9
Observe the following itemsregarding installation. If not, it can causefailure.
・ Steer clear of direct sunshine, and install it in a well-ventilated and horizontal site.
・ Install or keep pump free of rain or splashes.
・ Install pump free of paint mist.
・ Use clean air filtered through dryer and filter （ finer than 50 microns ） .
・ If clean air is not used, it can cause pump failure.

10
・ Before operation, be sure to pour the solvent matching the paint to be used entirely throughout
the paint passages.
・ Do not idle pump operation.
CAUTION
・ When you use the product for the first time after purchasing it or have not used it for over
one week even after cleaning, clean the inside fluid passages with cleaning liquid （２～３ liters）.
Use without cleaning can cause painting failure due to rust preventives or dust inside pump.
・ When using drain valve, operate it fully closed or fully opened.
Half-opened operation can accelerate wear on seated section and cause paint leakage.
・ Whenopening drain valve, put attacheddisposal cup orwastecontainer underthevalve
and receive paint.
・ When connecting drain valve to hose, firmly tighten it with hose band.
If hose comes off, high pressure paint can shoot out which is very dangerous.
5-2.Checking operation
WARNING
J o b １
Fully loosen knob of air
regulator and fully open drain
valve.
J o b ２
Slowly turn handle of air
regulator to [high] side. Pump
will operate.
J o b ３
Fully loosen knob of air
regulator and confirm that
pump stops operation.
・ Under the high pressure operation, it is dangerous to open the drain valve suddenly in
which can cause serious paint dispersal. Please open the drain valve slowly.

11
J o b ６
6-1.ntake of paint
■6. Preparation for operation
Job １
Turn handle of air regulator to [l
ow] side and let pump in suspenｄ
ed situation.
Job ２
Put intake hose set into paint.
Job ３
Put waste container (prepare
separately) under drain valve
and open drain valve.
Job ４
Slowly turn handle of air
regulator to [high] side and
close drain valve when all
cleaning liquid has come out
and paint has come out.
Adjust viscosity in accordance
with specifications of paint to
be used.
J o b ５
Point tip of airless gun toward
waste liquid container and pull
trigger and fully exhaust
cleaning liquid.
Turn handle of air regulator to
[low] side and release trigger of
airless gun after pump stops.
Keep drain valve opened.
J o b ７

12
6-2. How to fit nozzle tip
WARNING
Pay attention to high pressure.
・ Before fitting nozzle tip to airless gun, be sure fluid pressure is at 「０ MPa 」 and apply safety
lock. If not, pulling trigger by mistake can eject paint, causing great danger.
※In order to set fluid pressure to 「０MPa 」, fully turn handle of air regulator to [low] side till
resistance disappears and then open drain valve and exhaust paint.
・ Under the high pressure operation, it is dangerous to open the drain valve suddenly in which
can cause serious paint disperal. Please open the drain valve slowly.
CAUTION
・ Apply safety lock of airless gun.
・ Fit nozzle tip (optional).
・ Refer to instruction manual of airless spray gun about how to fit nozzle tip.
・ Nozzle tip and airless spray gun is not fitted to this airless spray unit.
Please prepare it separately in accordance with your application （refer to P29 ■１3
Selection of nozzle tip）.
■7. Painting job
7-1 Spraying job
・ Before job, fully tighten knob of air regulator.
Operating pump at very high air pressure can wear sliding section promptly and shorten
pump life.
・ Poursamesolventasusedwithpaintintopackingnutuptohalf ofitscapacity.
It can smooth pump operation.
・ Do not idle pump.
If done, it can shorten pump life.
J o b １

13
WARNING
・ Whenpaintleaksfromairlessgun, fluidhoseandjoints,nevertrytostopleakagebyhand.
In such a case, immediately stop air supply and stop pump operation.
・ Never point toward a person or animal or pull trigger of gun when human body or fingers
come near tip of gun.
If done, high pressure paint or solvent can enter human body through eyes, mouth or
skin, which is very dangerous.
・ Be sure to operate airless gun and fluid hose below max. operating pressure.
J o b １
Close drain valve, slowly turn
handle of air regulator to [high]
side and adjust to proper fluid
pressure to suit painting
condition.
Keep air pressure of air
regulator at less than 0.6 MPa.
J o b ２
Point airless gun toward work
and spray at a distance of
３０～４０ｃｍ.
If you want to use long high pressure fluid hose, use 3/8“ high pressure fluid hose and connect
1/4“ high pressure fluid hose to airless gun in order to improve handling.
・ Filter is built into fluid intake portion, fluid intermediate filter and airless gun in
・ order to protect them from clogging. If nozzle tip is clogged, filter paint through
wire net or cloth.
・ When you take fluid suction set out of paint in order to replenish paint during
pump operation, pump sucks air and operates idly. In that case, open drain valve
and release air.

14
7-2.For better painting
If you cannot get good painting conditions, refer to the following charts and adjust
painting conditions.
(1)Tails appear on painting surface (streaks appear)
・ Tailing problems come from material or properties of paints themselves. Refer to the
following charts and solve problems.
(2)Coating surface is rough （particles are large）
・ It also comes from material or property of paint as in （１） above. Solve just the same as
(1) above.
(3)Coating surface sags.
No.
Problems
Remedies
①Fluid output is large. Move gun faster to produce thin coating
film.
Reduce fluid pressure and fluid output.
②Fluid viscosity is low. Reduce fluid dilution and increase fluid
viscosity.
③Orifice of nozzle tip is large and
fluid output is large. Use nozzle tip with smaller orifice and
reduce fluid output. Refer to nozzle tip
selection on page 29.
(4)Pulsation appears on coating surface.
No.
Problems
Remedies
①Pressure fluctuation during pump
changeover affects coating surface.
Use anti-vibration hose NHN-610
（
nylon
braided hose）.
②
Fluid hose is short.
Remedy as stated above.
・
If you cannot get appropriate painting conditions even if you refer to the above
charts,please study the following matters and inform the shop which sold it to you:
（１）Names of paint manufacturer and paint
（２）Paint viscosity（how much did you dilute it？） and fluid pressure when spraying
（３）No. of nozzle tip used
（４）Situations of painting conditions
（Please explain in detail such as "fluid output is small", "there are streaks in
spray pattern", etc.）
No.
Problems
Remedies
①Fluid pressure is not suitable for
paint property. Adjust fluid pressure so that fluid
pressure does not cause tails （generally,
the higher the fluid pressure, the less
likely tailing will occur).
②
Fluid viscosity is high.
Dilute fluid and reduce fluid viscosity.
③
Filter of intake hose set or filter of
airless gun is clogged.
Disassemble and clean filter to remove
foreign matter.

15
■8 Interruption of job
WARNING
・ Under the high pressure operation, it isdangerous to open the drain valve suddenly inwhich can
causeseriouspaintdispersal.Pleaseopenthedrainvalveslowly.
J o b １
Return handle of air regulator to
[low] side and set pressure at
０MPa.
J o b ２
Slowly open drain valve and
reduce pump pressure.
Pay attention that sudden
opening of drain valve can
eject paint drain valve.
J o b ３
Pull trigger of airless gun and
check that paint does not come
out and that fluid pressure
goes down. After that, close
drain valve.
J o b ４
Fully clean and remove paint
attached to tip of airless gun
and nozzle tip.

16
・ Keep paint surface in paint container above paint intake section, or fully clean pump.
If paint intake section with paint is exposed to air without cleaning, ball in suction tube can stick to
seat section of pump and pump cannot draw paint during next operation.
・ Fullycleanduring color changingor periodic cleaning.
Ifnot,itcanfailnextjob.
Especially clean intake filter.
・ If you do not use for over one day, fully clean fluid passages with cleaning liquid.
Circulate till clean liquid comes out.
・ Be sure to disassemble and clean intermediate filter set after job is finished.
■9 Cleaning
9-1.Cleaning nozzle tip
WARNING
Before removing nozzle tip from airless gun, be sure to set fluid pressure at 「０MPa 」and
securely apply safety lock.
If not, triggering by mistake can cause fluid ejection, which is very dangerous.
J o b １
Apply safety lock of airless gun
and remove nozzle tip (as for
airless gun, refer to instruction
manual of airless gun).
J o b ２
Clean nozzle tip with brush.

17
9-2.Cleaning each section
J o b １
Confirm that air pressure is
0Mpa.
J o b ２
Slowly open drain valve.
J o b ３
Take out intake hose set ｆrom
paint container.
J o b ４
Slowly turn handle of air regulator
to [high] side and operate pump till
paint does not come out from
drain valve.
When exhausting remaining paint,
hold intake portion of intake hose
set upwards so that you can
exhaust paint remaining in intake
hose set.

18
J o b ５
Remove paint sticking around
intake hose set with brush, put
intake hose set into cleaning
liquid.
J o b ６
Operate till cleaning liquid comes
out from drain valve, keep airless
gun in contact with grounded
waste container (prepare on your
side) and pull
trigger.
Close drain valve and exhaust
paint in fluid hose to waste
liquid container.
J o b ８
Operate as it is, circulate cleaning
liquid, take out intake hose set
and drain hose set from cleaning
liquid in fluid hose to waste liquid
container.
When exhausting remaining
cleaning liquid from intake hose
set, hold intake portion of intake
hose set upwards so that you can
easily exhaust paint.
J o b
７