Anest Iwata LPH-80 User manual

－ 1 －
HVLP Compliant Spray gun Low Volume Low Pressure
Important
Besuretoobservewarningsandcautionsinthisinstructionmanual.
Ifnot,itcan causepaintejectionandseriousbodily injurybydrawingorganicsolvent.
Be sure to observe following marked items which are especially important.
Indicates a potentially hazardous situation which, if not avoided,may resultinserious injury or loss of life.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or property
damage.
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
yourowncompanyregulations.
■ Main specifications
Recommendedconditio
Model Typeof
feed
Nozzle
orifice
φmm(in)
Air cap
Set
Mark
※1Atomizing
air pressure
MPa (bar /PSI)
A
ir pressure inside
aircap
MPa (bar /PSI)
※2
Fluid output
ml/min
Air
consumption
l/min (cfm)
※2
Pattern width
mm(in)
Air & fluid
connection Mass g(lbs)
LPH-80-042G 0.4(0.016) 8 40(1.6)
-062G 0.6(0.024) 25 60(2.4)
-082G 0.8(0.032) 45 80(3.2)
-102G 1.0(0.039) 55 100(3.9)
-122G 1.2(0.047)
E2 0.09
(0.9/ 13)
80
50 (1.8)
120(4.7)
-044G 0.4(0.016) 10 55(2.1)
-064G 0.6(0.024) 30 80(3.1)
-084G 0.8(0.032) 45 100(3.9)
-104G 1.0(0.039) 60 130(5.1)
-124G
Gravity
1.2(0.047)
E4 0.10
(1.0/ 14)
0.07
(0.7 /10)
75
60 (2.2)
140(5.5)
Air
Ｇ1/4
（NPS1/4）
Fluid
Ｇ1/8
205
(0.45)
※1. Atomizing air pressuremeansair pressureat gun inlet when trigger ispulled and airflows．
※2.Tested with 16sec / Ford cup #4 automotive repair paint.
This Anest-iwata spray gun kit complies to ATEX
regulations94/9/EC,
Protectionlevel ：
Ⅱ2G X，Suitable forusein Zones1 and 2.
Xmarking ：
Anystaticelectricitydischargefromthespraygun
istobedivertedto the grounded the conductive
air hose as stipulated.
LPH-80
■ Important specifications
Max. Pressure ０．６８ ＭＰａ / ６．８ ｂａｒ / ９８ ＰＳＩ
Noise level ６０．３ ｄ
Ｂ （Ａ）
Spraycondition Recommended
Measuringpoint 1m backwardsfromgun,１．６ m height
Max.Temperature
Atmosphere ５℃～４０℃
Air・Fluid ５℃～４３℃
Thismanual containsIMPORTANTWARNINGS and INSTRUCTIONS.
Equipmentin thismanualisexclusivelyfor paintingpurposes.
Do notuseforotherpurposes.
The operator shall be fully conversant with the requirements stated in this
instruction manual including important warnings, cautions and operation and
correcthandling.
Read and understand the instruction manual, before use and retain for
reference.

－ 2 －
■
Safety precautions
Fireandexplosion
1.Sparkandopenflamesarestrictlyprohibited.
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 １MΩ. Check the earth stability periodically.
If not, insufficient grounding can cause fire and explosion due to static electric sparking.
Improper useof equipment
1. Never point gun toward people or animal.
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 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 toward 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.
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.
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 ８５ｄＢ(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.
Other precautions
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.
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．Ifsomething goes wrong, immediately stop operation and find the cause. Do not use again until you have solved the problem.
■
How to connect
-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.
-If you use this gun for the first time after purchasing, clean fluid passages spraying thinner 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.
Job1. Connect an air hoseto air nipple tightly.
Job2.Connect an applicablecuptofluidnippletightly.
Job3.Flush the gun fluid passage with a compatiblesolvent.
Job4. Pour paint intocontainer, test spray and adjust fluid outputas well as pattern width

－ 3 －
■ How to operate
Recommended paint viscosity differsaccording to paint property and
painting conditions. 12 to 20 sec./Fordcup#4isrecommendable.
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 50-150mm(2~5.9 in) As this gun is
operated at low air pressure,high transfer efficiency will not be obtained
ifthe spraydistanceistoo far.
■ Maintenance and inspection
-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 at the maintenance for protection of the human body.
-Be careful not to damage the tip offluid nozzle or must not put your hand on it.
-Only an experienced person who is fully conversant with the equipment can do maintenance and inspection.
-Never use commercial or other partsinstead of ANEST IWATA original spare parts.
-Never immerse the whole gun into liquid such as thinner.
-Never damage holes of air cap a fluid nozzle and fluid needle.
Step-by-step procedure Important
1.Pourremaining paintto another container. Cleanfluid passagesandair capset..
Spraya small amount of thinnerto clean fluid passages. 1. Incomplete cleaning can failpattern shape and uniform particles. Especially clean fullyand promptly two-component paint after use.
2.Clean each section with brush soakedwith thinnerand wipe outwith wastecloth.
2. Do not immerse the whole gun in thinner. If done, it can damage parts. Whencleaning,neverscratcheachholeofaircap setandfluidnozzle,andfluidneedleset.
3. Before disassembly, fully clean fluid passages. 3. During disassembly, do not scratch seat section.
(1)Disassemblefluidnozzle.
(1)Remove fluid nozzle after removing fluid needle set or while keepingfluid needle pulled, in order to protect seat section.
(2)Disassemblefluidneedleset.
You do not need to remove fluid adj. guide set from gun body. Remove fluid adj. knob
and fluid needle spring, and then pull out fluid needle spring, and then pull out fluid
needle set from back of fluidadj. guide set..
(2) Becareful when handing tipof fluid needle set since it is sharp.
Disassemble fluid adj. guide set as little aspossible.
4.To adjust fluid needle packing set, while keeping fluid needle set inserted, tighten fluid
needlepackingseatby hand andthen tightenfurtherbyspanner. 4.Too much tightening of fluid needle packing set can cause bad movement of fluid needle set andfluidleakagefromthetip of fluidneedleset..
5.In order to assemble air valve, first assemble air valve & air valve spring & fluid adj.
guide set together. Next, insert fluid needle set into fluid adj. guide set , then fit it to
gun bodyset and screw fluid adj. guide set.
5. If you try to fit air valve spring and air valve to gun body set without fluid needle set, air
valve will not be fitted correctly and lop packing inside fluid adj. guide set will be
damaged.
6.Turn pattern adj. knob or air adj. knob counterclockwise to fully open. And then
tightenpatternadj. setor air adj.set.. 6. If pattern adj. Knob or air adj. Knob is not fully opened, tip of it can contact and damage fluidnozzleand causeseizureof thread.
Whereto inspect Partsreplacementstandard
1. Eachhole passage of aircap and fluid nozzle Replace if it is crushed or deformed.
2. Packing and O ring Replace if itis deformedorworn out.
3.Leakage from seat section between fluid nozzle and fluid needle set Replacethemif leakagedoesnotstop afterfullycleaning 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.
■
Parts list
When ordering parts,specifygun’s model, part name with ref. No. and markedNo. of aircap
set, fluid nozzle and fluid needle.
Whenreplacingfluidnozzleor/and fluidneedlefor pressurefeed
application, pleaseorder nozzle needle set.
The gun should be heldso that itis perpendicular to the surface of the work piece at all times. Then, the
gun should movein a straight and horizontal line. Arcingthe gun causes uneven painting.
Fluid nozzle Fluid needle set
OrificeΦmm(in) Mark Mark
φ0.4(0.016) 04 Ⅰ
φ0.6(0.024) 06
φ0.8(0.032) 08 Ⅱ
φ1.0(0.039) 10
φ1.2(0.047) 12 Ⅲ
Fluid nozzle-fluid needle set combination
Pulling the triggerof the gun with thepattern adj.Set and fully opened adjust theair regulator in thespray
booth to obtain 0.5~1.0 bar( 7~14 PSI) at thegun inlet as issued on specificationstable ahead.
Inthis waythe gun willatomizewithin 0.7 bar(10 PSI)insideair cap.
NOTE
Usingairhose 12m(39.4ft)long,the innerdiametermustbe a minimum8mm (0.315in) sothe gun can
have the correct air volume to atomize at 0.7 bar (10 PSI) inside air cap.

－ 4 －
Parts list
No. Description Q’ty
1 Aircap 1
2 Packing 1
3 Cover 1
4 Fluid nozzle 1
5 Fluid needle set 1
6 needlepackingset 1
7 Needlepackingseat 1
8 Gunbody set 1
8-1 Fluid nipple 1
8-2 Air nipple 1
9 Pattern adj.set 1
10 Air valve seat set 1
10-1 O ring 1
11 Air valve seat screw 1
12 Airvalve 1
■
Troubleshooting
SprayPattern Problems Remedies
Fluttering
1.Air entersbetweenfluidnozzleand taperedseatof gun body.
2.Air isdrawn fromfluidneedlepackingset..
3.Air enters at fluid container fittingnut or fluid hose joint.
1. Remove fluid nozzle to clean seat. Ｉ f it is damaged, replacenozzle.
2. Tighten fluid needle packing.
3. Fully tighten joint section.
Crescent 1. Paint buildup on aircap partially clogs horn holes.
Air pressure from both horns differs. 1. Remove obstructions from horn holes with attached brush. But do not use metal objectsto cleanhorn holes.
Ｉnclined 1. Paint buildup or damage on fluid nozzle circumference and air cap
center.
2. Fluid nozzle isnot properly fitted.
1. Remove obstructions.
Replace if damaged.
2. Removefluid nozzle and clean seat section.
Split 1. Paint viscosity too low.
2. Fluid output too high.
1. Add paint to increase viscosity.
2. Tighten fluid adj. knob to reduce fluid output.
Or turn pattern adj. valve set clockwise.
Heavy Center 1. Paint viscosity is too high.
2. Fluid output is too low. 1. Add thinner to reduce viscosity. 2.Turnfluidadj.valveknobcounter-clockwiseto increasefluid output.
Spit
1. Fluid nozzle and fluid needle set are not seated properly.
2.The first-stage travel of trigger (whenonlyair discharges)decreases.
3.Paint buildupinsideaircapset.
1. Cleanorreplace fluidnozzleand fluidneedle set.
2. Replace fluidnozzleand fluidneedleset.
3. Clean air cap set.
R1：retighten R2：adjust R3:clean R4: replaceparts
Remedy
Problem Where it
occurred Parts to be checked Cause R1 R2 R3 R4
Airvalve *Dirtor damageon seat ○○
*Dirt or damageon seat ○○
Air valve seat set *Wear on airvalvespring ○
Airleaks
(from tip of air cup) Air valve set
Oring *Damageor deteriorated ○
* Dirt, damage, wearon seat ○○
* Loose fluid needle adj. knob ○
Fluidnozzle～
fluidneedleset * Wearon needlespring ○
* Insufficient tightening ○
Fluidnozzle～gunbody *Dirt ordamage on seat ○○
*Needle doesnot returndue to packingsettoo tight ○○
Fluidnozzle
Fluidneedle～packing set *Needle doesnot returndue to paintbuildupon fluidneedle ○○
Needle packing set ～needle set * Wear ○○
Paint leaks
Fluidneedle Packing seat * Insufficient tightening ○
Fluid adj. knob * Insufficient opening ○
Tip hole of nozzle * Clogged ○
Paint does not flow Tip of gun Paint filter * Clogged ○○
No. Description Q’ty
13 Airvalvespring 1
14 Fluid adj. guide 1
15 Fluidneedlespring 1
16 Fluid adj. knob 1
17 Air valve shaft 1
18 Air adj. set 1
19 Triggerstud 1
20 Trigger 1
21 Estopper 2
22 Brush 1
23 Instruction manual 1
◆Markedpartsare wearable parts.
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Code No.03757530
No.T067-01
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