Paint leaks from fuji hvlp air diffuser

I will do pictures tomorrow. The gun is not with me. I cleaned the tread really well after the leaks happened. If the treading is not sealing well，it should leak after I put the nozzle on without air diffuser，right？ I am getting a rebuild kit to replace the parts.
 
I got the rebuilt kit yesterday and after changing two plastic rings , it stopped leaking. But it started again today. Also the  cup bubbles too. Pls see pictures.

The flex tube leaks too as the front has a small cut. Tried to wrap in gas line seal tape. Wondering whether I can cut off that part and attach t the rest back  to connector?

Thanks
 

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If the tube is cracked just cut off the area, no problem as long as it reaches it's fine.

You might try one wrap of some Teflon tape on the nozzle threads.
 
Hello it appears to me that you have the fluid adjust open way too much and it is not atomizing properly. The excess is running down the tip. Try reducing to about 3 turns open and try again. What is the size of the nozzle/needle set?
Also replace the check valve on the hose, if it is plugged you will not pressure up the paint cup, cut out the bad section of hose and or replace

Bruce
 
brewster201 said:
Hello it appears to me that you have the fluid adjust open way too much and it is not atomizing properly. The excess is running down the tip. Try reducing to about 3 turns open and try again. What is the size of the nozzle/needle set?
Also replace the check valve on the hose, if it is plugged you will not pressure up the paint cup, cut out the bad section of hose and or replace

Bruce
Click to expand...
Is a T-70 drastically different than a Gxpc where full open is 2 1/2 turns?  Close the flow all the way, pull gently on the trigger, mark the flow control knob, open the flow control allowing the trigger to move back the it hit the gun body and count the turns.  I've read read comments mentioning 5-6 turns on a T-70 so I'm not sure if that is possible.
 
wptski said:
If the tube is cracked just cut off the area, no problem as long as it reaches it's fine.

You might try one wrap of some Teflon tape on the nozzle threads.
Click to expand...

So far works great with that trick！Thanks
 
brewster201 said:
Hello it appears to me that you have the fluid adjust open way too much and it is not atomizing properly. The excess is running down the tip. Try reducing to about 3 turns open and try again. What is the size of the nozzle/needle set?
Also replace the check valve on the hose, if it is plugged you will not pressure up the paint cup, cut out the bad section of hose and or replace

Bruce
Click to expand...

Looks like the tread inside gun has problems.
 
usatu said:
I got the rebuilt kit yesterday and after changing two plastic rings , it stopped leaking. But it started again today. Also the  cup bubbles too. Pls see pictures.
Click to expand...

There is definitely something wrong there.
You should not be getting any amount of paint in that area.
You really need to find someone in your area that can take a look at that gun and either fix it or throw it away.
No wonder you are having problems getting a good coat.
Did you buy that gun second hand or new?
Tim
 
Just a couple of months did just half of kitchen cabinets so far.  [sad]
 
usatu said:
Just a couple of months did just half of kitchen cabinets so far.  [sad]
Click to expand...
Although I have many spare pressure tubes,  my first one has seen more action and is crystal clear unlike yours which looks like it's been through three wars!
 
wptski said:
usatu said:
Just a couple of months did just half of kitchen cabinets so far.  [sad]
Click to expand...
Although I have many spare pressure tubes,  my first one has seen more action and is crystal clear unlike yours which looks like it's been through three wars!
Click to expand...

[big grin] [big grin] [big grin]What's the purpose of this tube? I didn't use solvent to clean it because I'm afraid of breaking it. Once the gun is leaking, it is a mess everywhere and very hard to clean.

I am still getting air bubbles. If the weather is nice and material is thin enough, I was able to get smooth finish but still with bubbles no matter how far/near I put my gun to the surface or how thin or thick the coating is. What's the possible solution to get rid of it without respraying the whole board? Thanks a lot!
 
usatu said:
wptski said:
usatu said:
Just a couple of months did just half of kitchen cabinets so far.  [sad]
Click to expand...
Although I have many spare pressure tubes,  my first one has seen more action and is crystal clear unlike yours which looks like it's been through three wars!
Click to expand...

[big grin] [big grin] [big grin]What's the purpose of this tube? I didn't use solvent to clean it because I'm afraid of breaking it. Once the gun is leaking, it is a mess everywhere and very hard to clean.

I am still getting air bubbles. If the weather is nice and material is thin enough, I was able to get smooth finish but still with bubbles no matter how far/near I put my gun to the surface or how thin or thick the coating is. What's the possible solution to get rid of it without respraying the whole board? Thanks a lot!
Click to expand...

The gun is broken, you'll never get a good finish with defective equipment.

Call Fuji, tell them bout the problem. Hopefully they'll send you a replacement gun.

Tom
 
tjbnwi said:
The gun is broken, you'll never get a good finish with defective equipment.

Call Fuji, tell them bout the problem. Hopefully they'll send you a replacement gun.

Tom
Click to expand...

Agreed.
The gun is not operating correctly.
Call Fuji, they are really good to deal with. I believe [member=24938]JCLP[/member] knows the name of the guy to speak to.
Tim
 
I contacted fuji and they asked me to mail to a place they have contracted with and no one is there @1pm to receive the package. So I expressed my concern that I need this thing fixed as soon as possible. CS suggested me to buy  a m-series gun.  [sad]  At this point I am idling.

BTW, I found it is so hard with bottom feed to spray anything close to the ground. Any suggestions?
Another issue is how to spray up inside of the cabinet as the board is not movable and visible when look up.

Thanks a lot and best
 
Add the PPS system to the gun, you can spray with the gun upside down.

In time you'll learn to spray blind.

Tom
 
Tom- will pps system compatible with a bottom feed gun？I only have a t70.

Thank you
 
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