Air Gunsa AZ3 HTE2 AV User guide

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• AZ3 HTE2
• AZ3 HTE2 AV
• AZ3 HTE2 HVLP
USE and MAINTENANCE INSTRUCTION MANUAL
GRAVITY
SPRAY GUN Series

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AZ3 HTE2 | AZ3 HTE2 AV | AZ3 HTE2 HVLP
TECHNICAL DATA
Technical
AZ3 HTE2 AV
1.0
10-15HTE
2.0
80
200
180
1.3 140 240
1.5 160 260
1.8 18-20HTE 250 215 300
2.0 300 340
2.5 25HTE
3.0
450 280 360
2.8 28-30HTE 540
300
380
3.0 560 400
3.5 35HTE 600 420
AZ3 HTE2 AV HVLP
1.3
HVLP 2.0
150
340
280
1.5 185 290
1.8 215 340
2.0 240 360
The HVLP spray guns follows all compliance HVLP mandates. Follow the indication of the inlet air pressure to achieve atomi-
zing pressure of 0.7 bar at the center of the air cap.

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IMPROPER USE
1. Never point gun towards people or animals.
2. Never exceed maximum working pressure or maximum operating
Temperature
3. Always release air and fluid pressure before cleaning, disassembling
or servicing. Otherwise, remaining pressure can cause bodily injury due to
improper operation or scattering of cleaning liquid.
4. Tip of fluid needle set has a sharp point.
Do not touch the tip during maintenance to avoid accidents.
5. Never use this gun to spray foods or chemicals. Otherwise, foreign sub-
stance, could cause corrosion of fluid passages which could adversely affect
health.
6. Never alter this spray gun, to avoid insufficient performance and damage.
7. If something goes wrong, immediately stop operation and find the cause.
Do not use again, until you have solved the problem.
8. Do not enter working areas, where robots, reciprocators, etc. are used,
until they have been turned off. Otherwise, they could cause injury.
3. HOW TO CONNECT
CAUTION
- Use clean air filtered through air dryer and air filter.
- When using this gun for the first time after purchase, adjust fluid needle
packing set, spray cleaner to clean fluid passages and remove rust pre-
ventive oil.
- Firmly fix cup to spray gun, to avoid that disconnection of it, can cause
bodily injury.
1. Firmly connect an air hose to air nipple G1/4” (17).
2. Firmly connect a suitable cup to fluid nipple G1/4”(15).
3. Flush fluid passages with a compatible cleaner.
4. Pour paint into container, test spray, adjust fluid output and pattern width.
4. HOW TO OPERATE
_ Suggested atomizing air pressure varies according to each model, and it is
listed in the Technical Data table.
_ Paint viscosity differs according to paint property and painting conditions,12 to
23 sec. / Ford cup#4 is recommended.
_ Set the spray distance from the gun to the work piece, as near as possible
within the range of 100-200 mm (3.9-7.9 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 horizon-
tal line. Arcing the gun causes uneven painting.
2. SAFETY WARNING
FIRE AND EXPLOSION
1. Never use the following HALOGENATED HYDROCARBON SOLVENTS:
which can cause cracks or dissolution of gun body (aluminium) due to
chemical reaction. UNSUITABLE SOLVENTS: methyl chloride, dichloromethane,
1.2-dichloroethane, carbon tetrachloride, trichloroethylene,
1.1.1-trichloroethane
2. Sparks and open flames are strictly prohibited. Paints can be highly
flammable and can cause fire. Do not expose to open flames, electrical
goods, cigarettes etc.
3. Securely ground spray gun using conductive air hose. (Less than1MΩ)
Always ensure that the spray gun is earthed correctly.
PROTECTION OF HUMAN BODY
1. Use in a well-ventilated site, using a spray booth.
Poor ventilation can cause organic solvent poisoning and fire.
2. Always wear protective gear (safety glasses, mask, gloves) to avoid
inflammation of eyes and skin.
In case of any physical discomfort, immediately seek medical advice.
3. Wear earplugs if necessary.
Noise level can exceed 85 dB(A), depending on operating conditions and
painting site.
4. Pulling the trigger many times during operation, may cause carpal
tunnel syndrome. Always rest, in case of tiredness.
This AIRGUNSA spray guns kit complies
to ATEX regulations 2014/34/EU.
Protection level: II 2G 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 stipulated.
ALWAYS observe WARNINGS and CAUTIONS in this
instruction manual.
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.
Symbol WARNING Hazard level Consequence
WARNING
Potentially hazardous
situation Death or serious injury
CAUTION Potentially hazardous
situation
Minor to moderate injury
IMPORTANT Potentially hazardous
situation Property damage
AZ3 HTE2 | AZ3 HTE2 AV | AZ3 HTE2 HVLP
1. TECHNICAL SPECIFICATIONS
Max. working air pressure: 7.0 bar (100 PSI)
Weight g (lbs): (without cup) 517 (1.14)
Noise level (LAeqT)*: 77.6 dB(A)
Air Connection G1/4”M
Fluid Connection G1/4”F
Max. Temperature range: Atmosphere 5 ~ 40 °C / Air-Fluid 5 ~ 43 °C
* Measuring point: 1m backwards from gun, 1.6 m height.

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- When you remove needle packing nut (10), don’t
leave the two plastic parts of needle packing set
in the gun body.
- Try to adjust it carefully while pulling trigger and
confirming movement of fluid needle set (9).
- If you tighten it too much, repeat operation.
e. Disassembly of pattern adjustment set (5) and/or air adjustment set (14-1).
In order to disassemble pattern adj. set (5) and/or air adj. set (14-1), turn
manually turn the hexagon knob of the adjustment counter-clockwise to
open it completely and unscrew the hexagon face with a spanner turning it
counter-clockwise.
- To reassemble pattern adjustment set (5) and/or air adjustment set (14-1),
reverse the procedure.
IMPORTANT: Before reassembling pattern adjustment set and/or air
adjustment set, make sure that these operations are carried out with the
adjustment fully open.
5.3 HOW TO ADJUST
5.4 INSPECTION & REPLACEMENT STANDARD
EN AZ3 HTE2 | AZ3 HTE2 AV | AZ3 HTE2 HVLP
5. MAINTENANCE AND INSPECTION
CAUTION
- Never use spare parts that are not AIRGUNSA originals.
- Never damage fluid nozzle tip, fluid needle or air cap holes.
- Never immerse the spray gun completely in liquids such as thinner.
5.1 CLEANING PROCEDURE
- Never soak air cap set (1) in cleaning liquid for an extended period,
even when cleaning.
- Never use metal brush to clean the gun.
1. Drain remaining paint from spray gun and cup, into a suitable container.
2. Pour cleaner into cup.
3. Unscrew air cap (1) by 2 turns, to allow atomizing air to back flush, fluid
passages of the gun.
4. Pull trigger (13) and make sure, that atomizing air enters cup.
5. Leave cleaner for a few seconds, then empty it into suitable waste con-
tainer.
6. Repeat procedure above, until spray gun is clean.
7. Remove air cap (1) and cup from gun, then clean each section with brush
soaked with cleaner and wipe out with waste cloth.
8. DRY ALL PARTS completely and apply spray gun lubricant to each thread.
5.2 MAINTENANCE
BEFORE DISASSEMBLY, CLEAN FLUID PASSAGES.
a. Disassemble fluid nozzle (2), while keeping fluid needle (9) pulled (triggering)
in order to protect its seat section.
b. Disassemble fluid needle set (9). (only when strictly necessary)
c. Remove the fluid adj. knob (6) and needle spring (8), extracting the spring and
fluid needle set (9), from the back of fluid adj. guide (7) set still assembled on
the gun body.
d. Adjustment of the needle packing set, must always be carried out with fluid
needle (9) still assembled, tightening the nut with a properly spanner, making
sure that excessive tightening does not impede movement of fluid needle (9),
resulting in paint leaking from fluid nozzle tip (2).
The fluid passages of the gun, must be cleaned thoroughly
after each use, especially after use with bi-component paints.
Incomplete cleaning can cause defective pattern shape.
Before carrying out maintenance and inspection ALWAYS
observe warning indications.
WHERE TO INSPECT REPLACEMENT PART
a. Each hole passage of air cap
(1) and fluid nozzle (2).
Replace if it is crushed or deformed.
b. Packing and O ring Replace if it is deformed or worn out.
c. Leakage from seat section
between fluid nozzle (2) and
fluid needle set (9).
Replace them if leakage does not stop
after fully cleaning fluid nozzle (2) and
fluid needle set (9).
If you replace fluid nozzle (2) or fluid
needle set (9) only, fully matchthem and
confirm that there is no leakage.
PATTERN ADJUSTMENT
(for all models)
Left turn (L)= LARGE pattern
Right turn (R)= SMALL pattern
AIR FLOW ADJUSTMENT

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AZ3 HTE2 | AZ3 HTE2 AV | AZ3 HTE2 HVLP
7. SPARE PARTS LIST
6. TROUBLESHOOTING
GUN DOES NOT SPRAY
- Fluid adj. knob (6) closed. Check and adjust.
- Tip hole of nozzle (2) obstructed. Check and clean.
- Paint filter obstructed. Check and clean.
- Non drip obstructed. Check and clean.
INTERMITTENT SPRAY PATTERN
- Air escapes from fluid nozzle. Check , clean & replace if
necessary.
- Air escapes from fluid needle Tighten.
packing (10).
- Air escapes from cup joint. Tighten.
- Dirt inside air cap (1). Clean.
DEFECTIVE SPRAY PATTERN
- Dirty nozzle (2) or air cap (1). Clean carefully.
- Nozzle (2) or air cap (1) Replace if damaged.
has been damaged.
- Fluid nozzle (2) is loose. Tighten.
- Paint viscosity too high or Dilute paint or increase
too low. viscosity
- Fluid output too high or Adjust fluid adj. knob (6)
too low. to reduce or increase.
LEAKING
- Fluid nozzle (2), needle set Clean or replace if neces-
(9) or gun body, dirty, sary.
damaged or worn on seat.
- Dirt inside air cap (1). Clean.
- Loose fluid adj. knob (6). Adjust.
- Fluid needle spring (8) is Replace.
worn.
- Loose fluid nozzle (2). Tighten.
- Needle packing set (10) loose, Adjust, clean or replace.
too tight, dirty or worn.
AIR ESCAPES FROM AIR CAP
- Air valve (11-2), air valve seat Clean or replace if neces-
(11-3) or air valve spring sary.
(11-1) dirty or damaged.
REF. DESCRIPTION
1 AIR CAP SET
2 FLUID NOZZLE
3 NOZZLE HOLDER

5PATTERN ADJUSTMENT SET
6 FLUID NEEDLE ADJ. KNOB
7 FLUID NEEDLE GUIDE

8 NEEDLE SPRING
9 FLUID NEEDLE
10 NEEDLE PACKING NUT
11 AIR VALVE SET
11-1 AIR VALVE SPRING
11-2 AIR VALVE
11-3 AIR VALVE SEAT
12 TRIGGER STUD
13 TRIGGER
14-1 AIR ADJUSTMENT SET (HTE 2 AV)
14-2 PLUG (HTE 2 - HTE 2 HVLP)
15 THREADED BUSHING

16-1 SCREW
16-2 PLUG
17 AIR NIPPLE

18 GRAVITY CUP SET (600 ml)
B NON DRIP
C PACKING SET
D SLIDE RING KIT
E PAINT FILTER (50 MESH)
B
E
18
10
C
16-2
3
2
15
1
11-2 11-1
C
11-3
12
12
13
14-1
17
16-1
D
8 6
9
7
5
 Remove the following parts, only in case of repair and by qualified
personnel.