Graco 390 Packing Kit for Airless Paint Sprayer - Repacking Pump
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- เผยแพร่เมื่อ 23 มิ.ย. 2020
- Graco 390 packing kit for airless paint sprayer repack pump repair. Graco 390 395 495. Here I strip down the piston and replace and repack the sprayer with the packing kit 244194. This Repacking kit for the Graco 390 is pretty straight forward so dont be put off.
If your sprayer is losing pressure or sounding a bit worse for wear. Change our the packings and get a packing kit.
I'd always suggest genuine parts. Obviously there are aftermarket options out there alot cheaper. Try those at your own risk.
Genuine pump repair kit which is the same one I've used .in the video
amzn.to/2Yu7Kj7
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Great info, looking forward to the Graco gun video if you get it up this weekend
Cheers. Yes hopefully have it up tomorrow, if not Monday
Nice job with the spanner hack
Ha cheers bud. Thinking outside the box
Just took a chance and bought a used 390 of Ebay £400 hope it runs !!
Bargain. Even if you re packed it. Its not that expensive. Fingers crossed
hello I have a 390 greco but when I turn it on it burns the fuse that fails it could have
Has the plug been removed and altered? Have you tried using it with an extension lead?
Could be the circuit board issue ive seen a few people have this problem.
Which sprayer do you prefer, that Graco or the titan 440?
i did like the titan machine, not sure why. had a differnt feel to it. i wouldnt know which was which if the machone was in a different room though
Very helpful video as always! How often needs the pump proconnect to be replaced? and how do I know if the pump is needs replacing ? my 390 pump just started to slow down after a year spraying every week, and wondering if this is why or something else. Thanks a lot
Thanks. Ha mine was like 7 years. Usually if you hear it struggling with pressure, paint leaking out the piston. Mine was making some loud noises and i knew it wasnt runninv right.
Maybe you just need to give it a good clean through
Id say a couple of years you should get out of them.
@@sprayaholic oh 7 yeeeeaaars?! Wow okay, yes it’s struggling with pressure but no loud noise or anything, I will check the valve as you shown in the video, probably cleaning would solve it. Thanks a lot for the reply, made me a bit more confident that I don’t have to spend that much for a new pump.
@@rnarno i dont think those quick change pumps are too expensive. Have a look at the ball bearinh in your suction pipe. If its dirty etc.
@@sprayaholic the packing kit you using in the video, that one is not expensive at all, but the ProConnect pump is a bit more than 300 so if I would have to change that every year that would add up for sure. So that’s why I am hoping it’s not full pump replacement
Do you know the kit number for the 190lts?.Thanks in advance for your response.
Hey. The Graco 190?
@@sprayaholic yes is the 190lts model
@romero10374 I'll have a look for you. I haven't heard of the LTS model that all
Winner Winner Chicken Dinner 💪🏻💪🏻
Ha ye big difference its made.
Can see it sprays alot better aswel a nicer fan now
How to know when to replace cylinder
how to know when to replace cylinder
The rod? Look for scratches.or areas where it has miss shaped
Motor smoking by fan what mow
Could be the motor is on the way out.
Worth repairing ??
@@patriciadeason2604 how olds your machine? Probably best to give your local repair centre a call and see what they say.
Quick question for you mate. My 390 is only about 6 months old, but sometimes when mid spray it'll start screaming like it's priming and the pressure will drop and stop spraying. It always primes no problem though. I've had the suction hose off and cleaned out the bottom bearing, but it keeps screaming away when spraying. It also won't build pressure sometimes and does all that madness as soon as I flick to spray mode and try and creep the pressure up. When I say screaming, it makes the noise you get when you're out of paint 😂 I'm hoping the top bearing needs a poke to free it up, which I'll do tomorrow, but just wondering if you've encountered anything like it?
hey yes it can often be that ball in the piston. if its stuck open or shut it wont work properly and will act how youve mentioned. did you get it sorted?
@@sprayaholic nah, not really mate. Both balls are clean and free. The bottom ball is absolutely spotless and I had a poke around the top one and it seems good from what I can see. I used it for priming woodwork and started ok as on low pressure, but right at the end it made the sound like I was out of material. When I was flicking from prime to spray when cleaning the gun and line, I bumped the pressure from zero and it just sticks on zero and screams like it's in prime mode. I've hunted high and low and can't find any post anywhere describing what's happening. Maybe it needs repacking.....I have hammered it a bit on mist coats, but always flush it clean and use pump armour when not in use. If it happens again I'll try and film it and post it up on my page so you can see what I mean and maybe have a better idea.
@@sprayaholic oh yeah, it's only 6 months old too. Maybe I should have got the 495 in hindsight 😂
@Badlefthook yes could need re packing. Could it actually be flicking into prime? Have you checked to see if material comes out wjen it makes the priming noise?
@@sprayaholic no material comes out of the prime tube when it does it. It just seems to drop pressure and stop spraying exactly like when you run out of material and the needle on the guage sort of flickers around 1500 psi I think, possibly whatever psi I was on, but it doesn't drop to zero on the guage. Then I turn it down, flick it to prime as if starting again, that's all good, primes up fine, but sometimes when I then flick to spray straight after, the slightest turn on the knob and it'll stick at zero and scream away like it's priming. Other times I can get back up to about 1500 and it'll stick there and go back to the priming sound and can't budge it. I read something about the transducer, but all a bit vague out there with my problems. All the packing problems, balls and what not all seem related to priming and I never have any trouble with that. It's a head scratcher and I can't live without my machine for too long.
Buy a rubber mallet for christ sake