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HVLP SPRAY GUN
HVLP SPRAY GUN
MODEL NO: AP16GF
PART No: 3090095
OPERATION & MAINTENANCE
INSTRUCTIONS
0903
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Please read these instructions carefully before operating the tool
Thank you for purchasing this CLARKE HVLP spray gun.
Before using the device, please read this manual thoroughly and carefully follow
all instructions given. This is for your own safety and that of others around you, and
is also to help you achieve long and trouble free service from your new spray gun.
CLARKE GUARANTEE
This CLARKE product is guaranteed against faulty manufacture for a period
of 12 months from the date of purchase. Please keep your receipt as proof
of purchase.
This guarantee is invalid if the product is found to have been abused or
tampered with in any way, or not used for the purpose for which it was
intended.
Faulty goods should be returned to their place of purchase, no product
can be returned to us without prior permission.
This guarantee does not affect your statutory rights.
Please be aware that certain parts of this spray gun will wear, requiring replacement and
that these parts may not be covered by your guarantee.
The wear on certain parts depends on the abrasiveness of the materials being sprayed.
More abrasive materials such as latex paint (emulsions) will cause these parts to wear much
faster.
Replacement parts are available from your nearest Clarke International dealer.
PARTS & SERVICE TEL: 020 8988 7400
or e-mail as follows:
PARTS: [email protected]
SERVICE: [email protected]
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SPECIFICATIONS
HVLP SPRAY GUNS
Professional spray guns with external paint mix and 600ml gravity fed cup for
cellulose, enamels, polyurethane, acrylics, metallics and all similar viscosity finishes
SPECIFICATIONS
Model : .................................................. AP16GF
Part No : ................................................. 3090095
Cup Capacity : ..................................... 600ml
Air Consumption : ................................ 9.5 CFM
Air Inlet Connector : ............................. ¼”BSP
Nozzle : .................................................. 1.4mm
Operating Pressure : ............................ 20 - 43 PSI
CONTENTS page
Guarantee 2
Safety Precautions 4
General Arrangement 5
Air Supply 5
Using The Spraygun 6
Maintenance 7
Paint Spraying Hints 8 / 9
Parts List 11 / 12
Please note that the details and specifications contained herein are correct at the time of going to
print. However CLARKE International reserve the right to change specifications at any time without
prior notice.
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SAFETY PRECAUTIONS
WARNING
Compressed air can be
dangerous. Ensure that you are
thoroughly familiar with all
precautions relating to the use of
compressors and compressed air
supply.
For your personal safety and that of others around you. Follow
these safety instructions carefully.
NOTE : products used in this spray gun may be covered by COSHH Regulations.
ALWAYS check the manufacturer’s data sheets on the products being sprayed for
any particular hazards, and follow the manufacturer’s instructions. Take particular
care if spraying isocyanate paints.
ALWAYS wear a suitable approved breathing mask when spraying, to protect against
inhalation of paint spray or fumes. An air feed mask may be required when spraying
some types of paint. If in doubt, check with the paint manufacturer.
ALWAYS make sure there is adequate ventilation. Do not spray in confined or enclosed
areas.
ALWAYS disconnect the spray gun from the air supply when it is not in use, and before
any disassembly.
ALWAYS keep the spray nozzle in place when spraying.
ALWAYS thoroughly clean the spray gun after use. See ‘Maintenance’
NEVER spray paint towards people or animals. In the case of injury, seek expert
medical advice immediately.
NEVER smoke while spraying or preparing paints, or spray near a naked flame, heat
source and electric sparks. Many paints are flammable.
NEVER allow children to use or play with this appliance.
NEVER spray products containing halogenated hydrocarbons (such as
trichloroethane or methylene chloride) with this gun as they can react chemically
with aluminium or zinc to produce an explosion hazard.
NEVER exceed the maximum input air pressure of 43 psi (3 bar).
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GENERAL ARRANGEMENT
A. Paint Cup F. Air Adjuster
B. Air Inlet G. Knurled Locking Ring
C. Spray Width Adjuster H. Wings
D. Trigger. I. Nozzle
E. Fluid Control Adjuster J. Cap
AIR SUPPLY
HVLP AP16GF spray guns are available with one nozzle size (1.4mm), ensure your spray
gun is matched to the capacity of your compressor.
Model Nozzle size Compressor Required
AP16GF 1.4 mm 3 hp and above
For best results, the air supply to the spray gun must be clean and dry, with no oil or water
contamination. Follow the air compressor manufacturer’s guidelines on installation and
operation to ensure that your air supply is as clean as possible. The compressed air supply
line to the spray gun must be fitted with an oil and water extractor and a suitable pressure
regulator.
Connect the air supply to the spray gun using a suitable 1/4” BSP fitting.
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USING THE SPRAYGUN
HVLP AP16GF spray guns are fed with paint by gravity from the paint cup. The air flow
through the air cap draws paint into the nozzle assembly, where it is atomised and sprayed
forward.
Attach the paint cup to the gun, ensure any seals etc are sound first, mix the paint to the
correct viscosity for spraying according to the manufacturers instructions, and strain it into
the paint cup through a fine mesh filter. When mixing the paint, make sure that you have
enough thinners left to clean the spray gun after use, do not fill the paint cup to more than
3/4 full. Make sure that the top edge of the cup and the cup sealing gasket are clean and
free from damage before screwing the cap on, it is also very important to keep the cup
vent clear.
Ensure that the top edge of the cup and the cup sealing gasket are clean and free from
damage. The cap must be screwed on securely to prevent any leaks from around the cup
rim.
Set the spray pattern and fluid flow using the adjustment screws on the spray gun. The
spray pattern is variable between round and fan by adjusting the air flow through the air
cap. Turn the spray width adjusting screw anticlockwise to increase flow and give a fan
shaped spray pattern, turning clockwise to close off the air flow will give a circular pattern.
The fan can be adjusted vertically or horizontally to suit your requirements by loosening the
knurled locking ring and turning the wings to the desired position. Set the fluid flow according
to the paint in use and the spray pattern by using the fluid flow adjustment screw;
anticlockwise to increase flow, clockwise to reduce flow. As the width of the spray is
increased, fluid flow will also need to be increased.
The air pressure needed will vary according to the paint in use, with thicker paints needing
greater pressure. For most paints, a pressure of between 20 - 43 psi is adequate.
To reduce overspray and to obtain maximum transfer efficiency, always use the lowest
possible air inlet pressure that produces an acceptable spray pattern.
The first requirement for a good resultant finish is the proper handling of the gun. The gun
should be perpendicular to the surface being covered and moved parallel with it. The
stroke should be started before the trigger is pulled and likewise , released before the
stroke is ended. This gives accurate control of the gun and material.
The distance between the gun and the surface to be covered should be 6 to 12 inches
depending on the material and atomising pressure. The material deposited should always
be even and wet. Lap each stroke over the preceding stroke to obtain a uniform finish.
NOTE: To reduce overspray and obtain maximum efficiency, always spray with the lowest
possible atomising air pressure.
Damage to the fluid needle or nozzle, or any of the air ports, will result in a faulty spray
pattern. Take care when cleaning or assembling these components.
When spraying, the gun should be held square to the surface being painted, at a distance
of 6 to 12 inches depending on the paint and atomising pressure. Keep the gun parallel to
the surface being sprayed, starting the stroke before pulling the trigger, and releasing the
trigger before ending the stroke. Overlap each stroke over the preceding stroke to obtain
an even finish. The paint cover should be even and wet when spraying.
If the gun is too far from the surface, or the paint is too thin, the paint will dry before hitting
the work, resulting in a rough, sandy finish. Allowing overspray to fall on a finished area will
also result in a rough finish. Too much paint feed or holding the gun too close to the work will
lead to runs and sagging.
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MAINTENANCE Figures in brackets refer to parts List Page 11/12
WARNING
Disconnect the spray gun from the air supply, and relieve any pressure in the gun
and hose, before any disassembly.
It is essential that the spray gun is kept clean. Dried paint in the nozzle assembly or airways
will stop the gun from working. For the gun to perform at its best it must be cleaned and
lubricated after every use.
After use, empty any remaining paint from the paint cup, wipe the cup clean with a dry, lint
free rag, and fill with thinners. Spray the thinners through the spray gun until it is clean.
1. Immerse only the front end of the gun until solvent just covers the fluid connection.
NOTE : do not submerge the entire spray gun in solvent because :
a, the lubricant in the leather packings will dissolve and the packings will dry out.
b, the lubricant at wear surfaces will dissolve resulting in harder operation and
premature wear.
c, residue from dirty solvent may clog the narrow air passages in the gun.
2. Use a small bristle brush and solvent to wash off accumulated paint.
3. Wipe down the outside of the gun with solvent dampened cloth.
4. Lubricate gun daily, using a light machine oil on :
a, fluid needle packing
b, air valve packing
c, trigger pivot point
Coat the fluid control spring with vaseline.
CAUTION : never use silicon based lubricants as this may cause paint finish defects.
DO NOT poke any of the holes in the air cap or nozzle with metal instruments. These holes
are precision drilled, and can be damaged by probing with anything harder than a wooden
toothpick.
Make sure that the air inlet vent to the paint cup is kept clean. Blockages in this vent will
prevent an even material flow to the gun.
It is possible to strip the fluid nozzle etc for better cleaning as follows.
Unscrew (anticlockwise) and remove the air cap set (01).
Unscrew (anticlockwise) and remove the fluid nozzle (02), (using the spanner
provided).
Unscrew and remove Fluid Control Knob Assy (14).
Carefully withdraw fluid needle (11).
Using the socket spanner unscrew (clockwise), and remove, the brass ring (07).
Using other end of socket spanner unscrew (anticlockwise), and remove, the packing
screw assy (03).
Store all items carefully. reasemble in reverse order.
Do not mix components from spray guns, even those of the same type. Do not overtighten
components, and be careful not to cross thread any parts on assembly.
Check the air supply hose regularly for any signs of damage, and replace it if necessary. Do
not use damaged or leaking hoses.
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PAINT SPRAYING HINTS
WARNING
NEVER attempt to spray unless you are wearing suitable, approved
respiratory and eye protection.
REMEMBER that some modern paints require specialist respiratory
protection...always consult the paint manufacturers instructions.
1. General Preparation
a. Ensure that the area in which you will be spraying is clean and dust free.
b. Connect spray gun to compressor via suitable flexible hose.
c. With no paint in spray gun, test system for air leaks.
d. Cover adjacent pieces of equipment to prevent overspray. Mask areas
of the article not to be sprayed.
e. Ensure surface to be painted is clean, dry and free from oil and dust.
Check paint manufacturer’s instructions for any special surface
preparation required.
REMEMBER - TIME SPENT PREPARING SAVES TIME SPENT FINISHING
2. Paint Preparation
a. Achieve the correct paint viscosity. This should be done according to
paint manufacturer’s instructions, and will vary according to type of paint, (see
paint thinning on page 9).
b. Having mixed the paint thoroughly in a separate container, pour into the
spray gun paint container through a fine filter.
DO NOT OVERFILL SPRAY GUN PAINT CONTAINER - three quarters full is maximum
c. It is usually best to experiment with a couple of practice spray coats on a
piece of material with the same type of surface as the article you wish to
spray, eg. metal for a car body panel, wood for a piece of furniture etc.
d. Some common problems:
PROBLEM CAUSE CORRECTION
Paint does not atomise Paint is too thick. Add thinners.
(comes out in blobs). Air pressure is too low. Increase air pressure.
Paint dries before hitting Paint is too thin. Add more paint.
surface, leaving it dry Air pressure is too high. Reduce air pressure.
with a rough texture.
Finish is pitted like Air pressure too high Reduce air pressure,
Orange peel. or spray too close to increase distance between
work. gun and work.
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PAINT SPRAYING HINTS Cont
To obtain best results, it is vital that the surface to be sprayed is well prepared. It must be
clean, free from dust, dirt and grease. Mask any area that is not to be sprayed.
Paint Thinning
Thinning is particularly important when paint spraying. Most paints are supplied ready for
brush application and need to be sufficiently diluted for spraying purposes. Always follow
the paint manufacturers instructions. If in doubt, always consult the paint manufacturer.
A Viscous Cup (not supplied), will assist in determining the correct thickness of the paint.
Ensure the paint is free from lumps or other
matter, if necessary strain it through a coarse
filter.
The ideal viscosity for most paints is given in
the chart opposite.
Dip the cup into the paint and fill to the brim.
Time how long it takes for the cup to empty.
Water based paints ...... 35 - 45 secs
Oil based paints ........... 15 - 25 secs
Enamel paints ............... 15 - 25 secs
Primers ........................... 20 - 30 secs
Varnishes ....................... 20 - 25 secs
Aluminium paints ......... 15 - 25 secs
Wood preservatives ..... Do Not Dilute
Wood Stains .................. Do Not Dilute
Smooth Masonry paint....dilute by 5 - 10%
Thin as required until times are achieved
Alternatively if a viscous cup is not available, the following information can be
used as a rough guide.
Water based paints (emulsions) 10-20% water.
Oil based paints (gloss) up to 10% thinners.
Cellulose paints up to 50 % cellulose thinners.
IF IN ANY DOUBT, CONTACT THE PAINT MANUFACTURER
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PARTS & SERVICE TEL: 020 8988 7400
or e-mail as follows:
PARTS: [email protected]
SERVICE: [email protected]
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PARTS LIST AP16GF
No DESCRIPTION PART NUMBER Qty
01 Nozzle Set NS1701 1
02 Fluid Nozzle NS1704 1
03 Packing Screw For paint Needle NS1705 1
04 Self Tensioning Needle Packing NS1706 1
05 Washer NS1707 1
06 Spring NS1708 1
07 Brass Ring NS1709 1
08 Material Sieve NS1727 1
09 Gun Body NS9112 1
10 Screw NS9122 1
11 Paint Needle Complete NS1716 1
12 Spring NS9617 1
13 Locknut For Fluid Control Knob NS9618 1
14 Fluid Adjustment Knob NS9619 1
15 Spring NS9120 1
16 Air Piston NS9119 - 1 1
17 Stem NS9719 1
18 Stuffing Box for Air Piston NS9713 1
21 Gasket NS1714 - 5 1
22 Spray Regulating Nut Assy NS1714 1
23 Stepless Regulation For Round/Flat Spray NS1715 1
24 Countersunk Screw NS1720 1
25 ‘E’ Ring NS1714 - 1 2
27 Pin NS1724 1
28 Trigger NS1722 1
29 Pin NS1725 1
30 Spanner NS1730 1
31 Socket Spanner NS1731 1
32 Cleaning Brush NS1732 1
33 Connector NS1726 1
34 Air Micrometer Set NS9121 1
35 Paint Cup NS1728 1
36 Cap NS1729 1
37 Non Drip Control Device NS1729 - 1 1
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