graco 390 motor smoking

Pump primes fine, but when I switch to spray, the motor struggles. Replace motor.

If you want to know more or withdraw your consent to all or some of the cookies, please refer to the, Equipamentos de Pintura a Alta Pressão Eléctricos, - For portable spray applications of architectural paints and coatings-, - Pour l'application de peintures et revêtements architecturaux avec un appareil mobile -, - Para aplicaciones de pulverización portátiles de pinturas y revestimientos con fines arquitectónicos -, - Per applicazioni a spruzzatura portatili delle vernici e dei rivestimenti architettonici -, - Para aplicações à pistola em pinturas e demãos arquitectónicas -, - Voor draagbare spuittoepassingen van muurverf en coatings -, Model Number: 253958, 262019, 254968, 254969, 254998, 253961, Maximum Working Pressure / Pression de service maximum / Presión máxima de trabajo / Pressione massima d'esercizio / Pressão, Máxima de Trabalho / Maximum werkdruk: 3300 psi (227 bar, 22,7 MPa), Graco Inc. P.O. The smell is so strong it feels like it could kill you. or your local Graco distributor to obtain a manual in your language.

IF he is building pressure his piston and pax kings are Kool. Profile ... untouched 390-4V from '62, good oil pressure, uses no oil, and no lifter noise. If your filters happen to be blown when the packings go it can let particles in that scratch the rod when it's pumping up and down. Get it as soon as Wed, Oct 28. And if the pressure built up too much, would it release through the prime tube? every pump I ever used the pressure nob if turned all the way down is for practical purpose also a 'off' nob. If it is pushing through the drain hose after the prime valve is closed at full pressure then Spray Repair Guy is correct it is either the transducer or the circuit board.

I changed the prime valve out and repacked the pump. you have to remove a graco piston and it does not have a reversible seat you would need to change the piston valve which is the piece that the packings go on.

JavaScript is disabled. I don't think anyone really reads theists sometimes.

sounds to me like a bad seat. The control is commanding the motor to run but the motor shaft does not rotate. Come join the discussion about the industry, safety, finishing, tools, machinery, projects, styles, scales, reviews, accessories, classifieds, and more! It has either the 360 or 390 but haven't had time to check it yet. For a better experience, please enable JavaScript in your browser before proceeding. Graco 390 sprayer motor straining. Sounds to me that the potentiometer/pressure control switch is shot.

This is whether I'm cleaning with water or using paint. 390 paint sprayer pdf manual download. $80.99 $ 80. Thanks guys. And more than he wants.

ain't the guy saying he has pressure. *all models not available in all countries, Graco Inc., PO Box 1441, Minneapolis, MN 55440-1441, Copyright 2004, Graco Inc. is registered to I.S. Or it could be me. Airless Sprayer. Airless Spray Pump Aftermarket Airless Pump 246428 17J552 for Graco 390 395 490 495 595 sprayers Durable (Silver) 4.4 out of 5 stars 13. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Box 1441 Minneapolis, MN 55440-1441, Copyright 2006, Graco Inc. is registered to I.S. Is there a way to check if it is the pressure control switch or the control board? Measuring the performance bases on gallons per week, luckily both Graco 390 vs 395 sprayers are at the same level. Ultamax lls: Brushless motors test when the motor is runnning at the start of the test. That's a good way of blowing a hose or pump. A forum community dedicated to professional painters. When you switch to paint, the pump should build to the pressure you set then the motor will stop. Save these instructions. Graco airless sprayers come in a range of sizes from small electric models to large gas-powered machines designed for very high production and spraying heavy materials such as block fill and epoxy. 7. And once it hits a circuit board my diagnostic ability stops. This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. Getting ready to work on my 68. If all else fails turn it upside down and whack it with a hammer. Remove motor cover and brush inspection plates to check. but. Anyone know what the symptoms of a bad pressure control switch are? EN ISO 9001, Graco inc. electric airless sprayer operation manual (48 pages), Graco inc. electric airless sprayer operation manual (41 pages), Electric airless sprayer 3300 psi (227 bar, 22.7 mpa) maximum working pressure (28 pages), Drive housing/motor kit replacement (7 pages), Graco inc. automatic high-range electrostatic air spray gun instructions manual (20 pages), Graco inc. silver airless spray gun instruction manual (12 pages), Gh series roof rigs gas-hydraulic airless sprayers (38 pages), Manual electrostatic air-assisted spray gun (46 pages), Graco inc. convertible sprayers operational manual (24 pages), Manual will be automatically added to "My Manuals", Pressure Relief Procedure / Procédure De Décompression / Procedimiento De Descompresión / Procedura DI Decompressione / Procedimento De Descompressão / Drukontlastingsprocedure, Grounding / Mise À La Terre / Conexión a Tierra / Messa a Terra / Ligação À Terra Ou À Massa / Aarding, Setup / Installation / Configuración / Configurazione / Instalação / Opstellen, Startup / Démarrage / Puesta En Marcha / Avviamento / Colocação Em Serviço / Opstarten, Cleanup / Nettoyage / Limpieza / Pulizia / Limpeza / Reinigen, Paint Sprayer Graco 310820E Operation Manual, Paint Sprayer Graco 253958 Operation Manual, Paint Sprayer Graco 311736A Operation Manual, Paint Sprayer Graco 310820H Operation Manual, Paint Sprayer Graco Ultra 390 Brochure & Specs, Paint Sprayer Graco 390 Instructions Manual, Paint Sprayer Graco 390 Electric Airless Sprayer Important Safety Instructions Manual, Paint Sprayer Graco 307-896 Instructions-Parts List Manual, Paint Sprayer Graco 308-328 Instructions-Parts List Manual, Paint Sprayer Graco 309092F Instruction Manual, Paint Sprayer Graco 308972R Instructions-Parts List Manual, Paint Sprayer Graco 309296F Operation Manual, Paint Sprayer Graco 309410 Operational Manual, Page 9: Instrucciones De Conexión A Tierra, Page 20: Pressure Relief Procedure / Procédure De Décompression / Procedimiento De Descompresión / Procedura Di Decompressione / Procedimento De Descompressão / Drukontlastingsprocedure, Page 21: Grounding / Mise À La Terre / Conexión A Tierra / Messa A Terra / Ligação À Terra Ou À Massa / Aarding, Page 24: Setup / Installation / Configuración / Configurazione / Instalação / Opstellen, Page 27: Startup / Démarrage / Puesta En Marcha / Avviamento / Colocação Em Serviço / Opstarten, Page 32: Cleanup / Nettoyage / Limpieza / Pulizia / Limpeza / Reinigen. Page 1 of 3 1 2 3 Next > Joined: Nov 11, 2010 Posts: 254. Even with the pressure turned all the way down, it pumps up like crazy. If it drifts down the bottom seat is bad remove it and flip it over they are reversible and if the piston drifts up the piston seat is bad and is reversible as well.

Either way, when runs for about 5 minutes and warms up, it starts smoke decently good from both sides since it has true duals. He already did some work he didn't need to do. Remove motor and have motor shop resurface commutator if possible. Good thing the dump valve is working. Any little scratch can keep pressure from building. Time to clearly elaborate theses both paint spray machines and reason for ranking one of them at the top. 99. Electric Airless Sprayers. Piston rod could be scratched also. Also for: 390, 253958, 262019, 254968, 254969, 254998, 253961. This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. 6. FREE Shipping by Amazon. The motor never stops, but it sounds like it's going to burn up. Contact Graco Customer Service. Pump primes fine, but when I switch to spray, the motor struggles. Although keeping your Graco airless sprayer clean and well maintained helps to prevent break-downs, knowing how to troubleshoot and fix common problems on the job can save you time and money. The motor never stops, but it sounds like it's going to burn up. the pressure switch, though, is I beleive wired through a circuit board in some way. Possibly locked rotor condition, an open connection exists between the motor and control,there is a problem with the motor or control board or the motor amp draw is excessive. Discussion in 'The Hokey Ass Message Board' started by kingdesgn, Mar 13, 2011. Do you know if the switch is supposed to be open or closed at high pressure?

Prime the unit and when it is primed close the prime valve and turn down the pressure control until the unit stops.

View and Download Graco 390 repair manual online. Also remember to put some piston lube in each time you spray. Performance comparison for Graco 390 vs 395 Paint Sprayer. Seriously cannot believe that is a solution listed on graco's website, lol.

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