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SPOT BLAST GUN
SPOT BLAST GUN
MODEL NO: SB3
PART No: 5091101
OPERATION & MAINTENANCE
INSTRUCTIONS
0404
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SPECIFICATIONS
Model : .................................................. SB3
Part No : ................................................. 5091101
Cup Capacity : ..................................... 1 Litre
Air Consumption : ................................ 20 cfm
Air Inlet Connector : ............................. ¼”BSP
Nozzle : .................................................. 6 mm
Operating Pressure : ............................ 5.5-6.5bar
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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PARTS LIST
No DESCRIPTION PART NUMBER Qty
1 Main Body NSSB301 1
2 Container Cap complete NSSB302 1
3 Container NSSB303 1
4 Nozzle NSSB304 1
4a Inner Nozzle NSSB304a 1
5 Retaining Ring NSSB305 1
6 Hose Tail 8mm NSSB306 1
7 Nut 1/4” BSP NSSB307 1
8 Air Valve Nut NSSB308 1
9 Air Valve NSSB309 1
10 Valve Needle NSSB310 1
11 Valve Spring NSSB311 1
12 Circlip NSSB312 1
13 Trigger NSSB313 1
14 Pivot Pin NSSB314 1
15 O-Ring Large NSSB315 1
16 O-Ring Small NSSB316 1
For Al Oxide grit and Glass beads...see your CLARKE dealer
Please read these instructions carefully before operating the tool
Thank you for purchasing this CLARKE Spot Blast 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 spot blast 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 used.
Replacement parts are available from your nearest Clarke International dealer.
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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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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 wear protective gloves and clothing, and a face shield or safety goggles.
NOTE: Spectacles DO NOT give sufficient protection, correct goggles must be worn,
although a full face mask is strongly recommended.
✔ Dust masks MUST ALWAYS BE WORN. Inhaling dust produced by the spot blasting
process or the possible inhalation or ingestion of grit is extremely hazardous.
✔ ALWAYS make sure there is adequate ventilation. Do not spray in confined or enclosed
areas.
✔ ALWAYS disconnect the gun from the air supply when it is not in use, and before any
disassembly.
✔ ALWAYS thoroughly clean the gun after use. See ‘Maintenance’
✔ ALWAYS turn OFF the air supply at the compressor outlet, and expel all air from the air
hose and gun, BEFORE disconnecting the Spot Blast Gun from the air hose.
✔ ALWAYS use appropriate air hoses and couplings and ensure that they are in good
condition. If any parts are worn or damaged, they should be replaced immediately.
✔ ALWAYS hold the tool firmly and maintain good balance.
✔ ALWAYS ensure hose couplings are secure before use.
✗ NEVER carry the gun by the hose. Keep hoses away from heat, oil and sharp edges.
✗ NEVER use wet or even damp grit. Ensure the grit is completely dry,
✗ NEVER operate the gun in the vicinity of an air compressor unless an efficient air filter
is fitted. The possibility of grit entering the air compressor cylinder, which would cause
serious damage, should not be overlooked.
✗ NEVER direct the Grit Spray at people or animals.. In the case of injury, seek expert
medical advice immediately.
✗ NEVER allow children to use or play with this appliance.
✗ NEVER operate the gun at pressures exceeding 100 psi (6.5 bar)
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INSTALLATION
1. Connect your Spot Blast Gun to a regulated, dry air supply via the ¼” BSP connector at
the base of the handle.
2. The pressure required to operate the gun is determined by the grit size and the finish
required e.g. High Pressure + Coarse Grit = Coarse Finish
Low Pressure + Fine Grit = Fine Finish
3. Fill the metal grit container with the appropriate grade of grit for dry blasting, as required.
NOTE: ALWAYS consult the grit manufacturers recommendations for the correct
grade of grit to be used, and NEVER use wet or damp grit.
4. Fix the grit container to the gun via the bayonet fitting.
OPERATION
1. Ensure the breather hole in the container cap is clear.
2. Place the nozzle against a scrap piece of material, and pull the trigger to discharge
excessive grit in the feed tube. You could cause damage to the workpiece if you
do not carry out this procedure.
3. Hold gun the appropriate distance from the workpiece to be cleaned, (dependent upon
the type of material and the size of grit being used), and where possible, perpendicular to
the workpiece. Pull the trigger for a few seconds at a time. Check the workpiece frequently.
NOTE: The softer the material the lower the pressure, or the further the gun should be
held from the workpiece.
4. Shake the gun frequently when in use, to prevent a cavity forming in the grit
container, thereby ensuring that the grit will be drawn up correctly.
The finish left by the spot blast operation should be ideal for immediate priming where required.
MAINTENANCE (Numbers in brackets refer to item nos. in parts list)
WARNING
Disconnect the spray gun from the air supply, and relieve any pressure in the gun
and hose, before any disassembly.
This Spot Blast Gun requires minimum maintenance, and requires no adjustment, as the
Air/Grit mix is factory set. The nozzle is made of hardened steel for long life, but will need
replacing from time to time, as indicated by a decrease in performance.
When not in use, remove the grit container, (3) via its bayonet fitting, the nozzle, (4) by
unscrewing the retaining ring, and clean them thoroughly. Wipe all surfaces clean and
dry ensuring that there are no traces of grit or waste material. Store in a dry environment.
Check the air valve on a monthly basis if the gun is used frequently, to ensure it moves
smoothly and effectively. To do this, remove the circlip (12), securing the trigger pivot pin
(14), then remove the pin (3) and the trigger.
Unscrew and remove the air valve. Ensure the sealing rings are perfectly serviceable. If in
doubt, they should be replaced. Should there be an air leak, suspect the nylon seal on the
valve needle (10).
When satisfied that all parts are serviceable, apply a thin coat of grease to the o-rings and
reassemble.
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