SEALEY HVLP-79 HVLP Pressure Pot System Instruction Manual
- June 4, 2024
- SEALEY
Table of Contents
HVLP PRESSURE POT SYSTEM
MODEL NO: HVLP-79/P.V3
Thank you for purchasing a Sealey product. Manufactured to a high standard, this product will, if used according to these instructions, and properly maintained, give you years of trouble free performance.
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
Refer to instruction manual Wear eye protection
Wear respiratory protection Wear protective clothing
1. SAFETY
** Familiarise yourself with the application, limitations and potential
hazards peculiar to the spray gun.
WARNING! Disconnect the spray gun from the air supply before changing
accessories, servicing or performing any maintenance.
** Maintain the spray gun in good condition (use an authorised service
agent).
Replace or repair damaged parts. Use recommended parts only.
Unauthorised parts may be dangerous and will invalidate the warranty.
Keep the spray gun clean for best and safest performance.
Ensure that the compressed air system can supply the spray gun air
consumption (10cfm).
Wear approved safety respiratory protection and safety eye goggles.
If spraying isocyanate based finisher, wear approved respirator/clean
air breathing apparatus and protect skin with latex gloves and an impervious
hooded coverall.
Remove ill fitting clothing. Remove ties, watches, rings and other loose
jewellery and tie back long hair.
Locate the spray gun in a suitable work area. Keep area clean and tidy
and free from unrelated materials and ensure that there is adequate
ventilation and lighting.
Keep children and unauthorised persons away from the work area.
When not in use, ensure that the air supply is turned off.
Avoid unintentional operation of spray gun.
DO NOT point spray gun at yourself, other persons or animals.
DO NOT direct air from the air hose at yourself, other persons or
animals.
DO NOT carry the spray gun by the hose, or yank the hose from the air
supply.
DO NOT exceed the maximum air pressure of 50psi.
DO NOT use the spray gun for any purpose other than that for which it is
designed.
DO NOT allow untrained persons to operate the spray gun.
DO NOT get the spray gun wet or use in damp or wet locations or in areas
where there is condensation.
DO NOT operate the spray gun if any parts are missing or damaged as this
may cause failure and/or personal injury.
**** When not in use, disconnect the spray gun from the air supply, clean
thoroughly and store safely
2. INTRODUCTION
Fully polished metal gun body resists corrosion and has low affinity for paint, making this unit ideal for water based paints and easy-to-clean. Adjustable paint flow, fan width and air regulator controls. High capacity pressure pot holds up to 2L of paint. This unit is perfectly suited to the commercial refinishing shop. Components of this set are also available individually. Alternative set-ups available separately.
3. SPECIFICATION
Model No: ………………… HVLP-79P.V3
Air Consumption: ………….. 6-10cfm
Available Set-Up(s): ………. 1.2, 1.4, 1.6, 1.8, 2.0, 2.5mm
Contents: ………………… HVLP-79/P1, HVLP-79/P2, SSG1P/3
Pot Capacity: …………….. 2L
Recommended Air Pressure: ….. 15-50psi
Standard Set-Up: ………….. 1.7mm
4. AIR SUPPLY
4.1. Recommended supply system is shown alongside.
4.2. Ensure that the spray gun trigger is in the “off” position before
connecting to the air supply.
4.3. You will require an air pressure between 15 – 50psi, and an air flow
according to the specification.
WARNING! Ensure that the air supply is clean and does not exceed 50psi
while operating the spray gun. Too high an air pressure and/or unclean air
will shorten the product life, due to excessive wear, and may cause damage
and/or personal injury.
4.4. Drain the air tank daily. Water in the air line will damage the
spray gun and invalidate your warranty.
4.5. Clean compressor air inlet filter weekly.
4.6. Line pressure should be increased to compensate for unusually long
air hoses (over 8 metres). The minimum hose diameter should be 1/4” I.D. and
fittings must have the same inside dimensions.
4.7. Keep hose away from heat, oil and sharp edges. Check hoses for wear,
and make certain that all connections are secure.
5. OPERATION
5.1. For best results, handle the gun correctly. It should be held
perpendicular to the surface being sprayed and moved parallel to it. Start the
stroke before squeezing the trigger and release the trigger before finishing
the stroke. This will give more accurate control of the gun and the material
(see right).
5.2. Spray from a distance of 6 (150mm) to 10 inches (250mm), depending
on the material and the atomizing pressure. The material deposited should
always be even and wet. Each stroke must overlap the preceding stroke to
obtain a uniform finish. To reduce overspray and obtain maximum efficiency,
spray with the lowest possible atomizing air pressure.
5.3. Controlling the fluid and the fan spray:
a) As the width of the spray is altered so the fluid flow must be adjusted to
maintain the same coverage. Use the fluid control screw (‘C’ in Section 7).
b) The direction of the fan spray, either horizontal or vertical, is adjusted
by turning the air cap to the desired position and then tightening the
retaining ring.
6. MAINTENANCE/CLEANING
6.1. Disconnect from the air supply before attempting any maintenance or
cleaning. When reassembling after maintenance, be sure to take care when
screwing parts together. At first screw parts hand tight to avoid cross-
threading. If a part cannot easily be turned by hand, check that you have the
correct part, or unscrew, realign and try again. DO NOT use excessive
force when reassembling.
6.2. SPRAY GUN
6.2.1. Immerse the front end of the gun only in solvent until the solvent just
covers the fluid connection.
6.2.2. Use a bristle brush and solvent to wash off accumulated paint.
6.2.3. Do not immerse the entire gun in solvent. This will cause lubricants to
dissolve and packing to dry out.
6.2.4. Dirty solvent may also clog the narrow passages in the gun.
6.2.5. Wipe the outside of the gun with a dampened solvent rag.
6.2.6. Lubricate the gun daily with a light machine oil. Be sure to lubricate
the fluid needle packing, air valve packing, side port control packing and
trigger pivot point. Do not use lubricants containing silicone.
6.2.7. When finished spraying, flush the gun through with clean thinners.
6.3. AIR NOZZLE, FLUID NOZZLE & NEEDLE ASSEMBLY
6.3.1. To clean the nozzles, soak them in solvent to dissolve any dried
material then blow them clean with air. Handle all nozzles carefully and do
not make any alterations in the gun.
6.3.2. If you need to probe the holes in the nozzles, be sure to use a tool
that is softer than brass; do not use metal instruments.
6.3.3. Adjust the fluid needle valve so that when the gun is triggered, air
flow occurs before fluid flow.
7. TROUBLESHOOTING
| THE PROBLEM | THE CAUSE | THE SOLUTION |
|---|
Heavy atomization, poor centre pattern
| Fluid flow is too high for the air pressure and flow|
- Increase air pressure by adjusting regulator (A) and increase flow adjusting regulator (B).
- Reduce paint flow with regulator (C).
- Paint may be too thick. If so, dilute it.
Poor atomization/heavy centre pattern
| Air pressure and flow too high for fluid flow|
- Reduce air pressure by adjusting regulator (A).
- Reduce air flow by adjusting regulator (B) and increase fluid flow with regulator (C).
Intermittent spray pattern
| Air entering the fluid supply|
- Tighten the connection between the gun and the pot.
- Tighten fluid nozzle with gun spanner.
- Check if pot vent hole is blocked.
- Check if pot is empty.
Heavy right or left side pattern
| Horn hole (A) blocked. In order to check, turn the air cap (C), if the faulty pattern is now upside down the hole must be cleaned.|
- Place the air cap in solvent.
- Clean hole with compressed air or with a wooden toothpick. DO NOT use a metal probe which will damage the hole.
Top heavy or bottom heavy pattern
| Possible paint build-up between fluid nozzle and air cap (A).|
- Clean the air cap and the fluid nozzle, check that they match.
- Check needle for damage.
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools,
accessories and packaging should be sorted, taken to a recycling centre and
disposed of in a manner which is compatible with the environment. When the
product becomes completely unserviceable and requires disposal, drain any
fluids (if applicable) into approved containers and dispose of the product and
fluids according to local regulations.
Note: It is our policy to continually improve products and as such we
reserve the right to alter data, specifications and component parts without
prior notice. Please note that other versions of this product are available.
If you require documentation for alternative versions, please email or call
our technical team on technical@sealey.co.uk or 01284 757505.
Important: No Liability is accepted for incorrect use of this product.
Warranty: Guarantee is 12 months from purchase date, proof of which is
required for any claim.
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500 01284 703534 sales@sealey.co.uk www.sealey.co.uk
© Jack Sealey Limited Original Language Version HVLP-79.V3 Issue:1 25/10/21
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