Clarke SP18C Instruction Manual

OPERATION & MAINTENANCE
INSTRUCTIONS
0903
MODEL NO: Super Pro14C & Super Pro18C
PA RT No: 3090050 & 3090055
SPRAY GUN
SPRAY GUN

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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 in alid if the product is found to ha e 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 read these instructions carefully before operating the tool
Thank you for purchasing this CLARKE Super Pro Spray Gun.
Before using the de ice, please read this manual thoroughly and carefully. Follow
all instructions gi en. This is for your own safety and that of others around you, and
is also to help you achie e long and trouble free ser ice from your new spray gun.
PARTS & SERVICE TEL: [phone]
or e-mail as follows:
PAR TS: Parts clarkeinternational.com
SERVICE: Service clarkeinternational.com
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 .
eplacement parts are available from your nearest Clarke International dealer.
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NOTES

SPECIFICATIONS
Part No :..................................... 3090050 3090055
Vessel Capacity :.................... 1 Litre 1 Litre
Air Co sumptio :.................... 8.50 CFM 8.50 CFM
Air I let Co ector :............... 1/4 BSP 1/4 BSP
Nozzle :...................................... 1.4mm 1.8mm
Fluid Co ector....................... 3/8 BSP 3/8 BSP
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.
SUPER PRO SPRAY GUNS
Professional spray guns with external paint mix and 1 litre syphon cup for cellulose,
enamels, polyurethane, acrylics, metallics and all similar iscosity finishes
Super Pro-14C Super Pro-18C
PARTS LIST
No DESCRIPTION Super Pro14C Super Pro18C Qty
PART NUMBER
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SPECIFICATIONS
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
CONTENTS page
1 Air cap Set NS5P1401 NS6P1801 1
2 Nozzle NS5P1402 NS6P1802 1
3 Copper Gasket NS5P1403 NS6P1803 1
4 Air Orientated Ring NS5P1404 NS6P1804 1
5 Body NS5P1405 NS6P185 1
6 Adjusting Val e Set NS5P1406 NS6P186 1
7 Spring NS5P1407 NS6P1807 1
8 Adjusting Screw NS5P1408 NS6P1808 1
9 Fluid Needle NS5P1409 NS6P189 1
10 Needle Val e Guide NS5P1410 NS6P1810 1
11 O Ring NS5P1411 NS6P1811 1
12 Air Hose Joint NS5P1412 NS6P1812 1
13 Quick Connector NS5P1413 NS6P1813 1
14 Air Adj Val e et NS5P1414 NS6P1814 1
15 Nut NS5P1415 NS6P1815 1
16 Fluid Joint NS5P1416 NS6P1816 1
17 Trigger Pin NS5P1417 NS6P1817 1
18 Trigger NS5P1418 NS6P1818 1
19 Copper Pin NS5P1419 NS6P1819 1
20 Nut NS5P1420 NS6P1820 1
21 Yoke Assy NS5P1421 NS6P1821 1
22 Le er NS5P1422 NS6P1822 1
23 Cup Top Assy NS5P1423 NS6P1823 1
24 Cup Gasket NS5P1424 NS6P1824 1
25 O Ring NS5P1425 NS6P1825 1
26 Nut NS5P1426 NS6P1826 1
27 Baffle NS5P1427 NS6P1827 1
28 Tube Assembly NS5P1428 NS6P1828 1
29 Filter NS5P1429 NS6P1829 1
30 Paint Cup NS5P1430 NS6P1830 1
31 Paint Cap Assembly NS5P1431 NS6P1831 1
32 Air Val e Seat Set NS5P1432 NS6P1832 1
# Spanner NS5P1433 NS6P1833 1
# Cleaning Brush NS5P1434 NS6P1834 1
# Air Hose Joint Set NS5P1435 NS6P1835 1
# Part not shown

NOTE : products used in this spray gun may be covered by COSHH egulations.
 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 or
heat source. 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 70 psi (4.8 bar).
SAFETY PRECAUTIONS
WARNING
Compressed air ca be
da gerous. E sure that you are
thoroughly familiar with all
precautio s relati g to the use of
compressors a d compressed air
supply.
For your perso al safety a d that of others arou d you. Follow
these safety i structio s carefully.
PARTS DIAGRAM
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IMPORTANT:
T he use of parts other than CLARKE replace ent parts ay result in safety hazards,
decreased tool perfor ance and ay invalidate your warranty.

Spray Nozzle
Wings
Fan Control
Fluid Control
Paint Cup Ven t
Air Supply
Air Flow Control
Paint Cup
Paint Cup
Locking Lever
GENERAL ARRANGEMENT
Super Pro spray guns are available with two nozzle sizes, 1.4mm, and 1.8mm. The larger
the nozzle, the more compressed air is needed. Make sure your spray gun is matched to
the capacity of your compressor.
Model Nozzle size Co pressor required
Super Pro-14 1.4 mm 2 hp and above
Super Pro-18 1.8 mm 2 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.
AIR SUPPLY
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NOTES
Knurled Locking
Ring
Trigger

Super Pro spray guns are fed with paint by a siphon (or suction) effect from the paint cup.
The air flow through the air cap draws paint up the feed tube, into the nozzle assembly,
where it is atomised and sprayed forward.
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 mounting the cup on
the gun. The cup locking lever must be tightened firmly to prevent any leaks from around
the cup rim, also it is very important to keep the cup vent clear.
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 fan control 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 control screw;
anticlockwise to increase, 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 1.5 and 4.2 bar (approximately
22 - 60 psi) is adequate, to increase the air pressure, turn the air flow control anticlockwise
to increase, and clockwise to decrease the air pressure.
NOTE:
To reduce overspray and obtain maximum transfer efficiency, always use the lowest
possible air inlet atomising 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.
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.
USING THE SPRAYGUN
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.
Thin as required until ti es are achieved
Water based paints ..... 35 - 45 secs
Oil based paints .......... 15 - 25 secs
Ena el paints .............. 15 - 25 secs
Pri ers .......................... 20 - 30 secs
Varnishes ...................... 20 - 25 secs
Alu iniu paints ........ 15 - 25 secs
Wood preservatives .... Do Not Dilute
Wood Stains .................. Do Not Dilute
S ooth Masonry paint....dilute by 5 - 10%
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
Alternati ely if a iscous cup is not a ailable, the following information can be used
as a rough guide.
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WARNING
Relieve any pressure in the gun and hose, and disconnect the spray gun fro
the air supply, before any disasse bly.
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 seals/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 sol ent to wash off accumulated paint.
3. Wipe down the outside of the gun with sol ent dampened cloth.
4. Lubricate gun daily, using a light machine oil on :
a,
fluid needle packing
b, air valve packing
c, side port control packing
d, trigger pivot point
Coat the fluid control spring with grease
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.
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.
MAINTENANCE PAINT SPRAYING HINTS
WARNING
NEVER attempt to spray unless you are wearing suitable, approved
respiratory and eye protection.
REMEM ER 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 protect from 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.
EMEMBE - TIME SPENT P EPA ING 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 OVE FILL SP AY GUN PAINT CONTAINE - 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. educe air pressure.
with a rough texture.
Finish is pitted like Orange Air pressure too high or educe air pressure,
peel. spray too close to work. increase distance between
gun and work.
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