Issue with Coltri MCH6

[tommyt53]

While filling my Omega .74 tank I noticed the gauge on the Coltri was reading 1k psi higher than the gauge on the tank. When the tank was at 4200 psi the gauge on the Coltri was at 5200 psi. It was a little scary. When I unhooked the tank from compressor I plugged the fill hose and it read 4200 psi on the tank.

The Coltri is less than a year old and probably doesn’t have 3 hours on the meter. What could have happened?
Thanks...Tommy

 

[ctshooter]

Interesting - I was having a similar issue with my YH a few weeks back. The tank would be around 4K but I'd be blowing 5K burst disks on the compressor side. The first issue ended up being the little tampon cotton cylinders - one had split apart and was wedged back into the micro air tube. Once that was cleared I still popped a disk and that ended up being due to the the large gold filter being saturated.

I removed the tampon holder from the chain and replaced the cartidge in the gold filter and now I'm running smoothly.

I would check everything in line from the air gauge on the compressor to the tank as it sounds like there is something blocking the airway and sucking 1K psi out of your fill.

 

[Enkey]

Hi
In my Coltri the only thing that has broken with very few hours of work was the gauge, I changed it for a non-original one and I haven't had any more problems.
Regards
Enkey

 

[Chickenthief]

Have you've been draining moisture every 10min at both cranks?

Mine has done past 10 hours i have'nt had any issyes.

Seems like a water block between moisture trap and filter.

 

[Chickenthief]

If you dont drain cock number two then your filter gets clogged with water and the compressor will boost just fine but discharge to the bottle gets impared. Ie different readouts.
New filter and new drain routine?

 

[Jack.K]

Most likely it’s a bad gauge on your mch-6. If your compressor was really at 5600 psi the safety valve on the first moisture tower would have started to discharge at 330 bar.

 

[Airgunmann]

Probably the gauge there is a safety valve that will pop off if pressures get to high mine is a 330 bar safety

 

[tommyt53]

I have not been draining off moisture every ten minutes . I thought it would happen automatically . I was surprised that after working hard for 15 minutes it never took relief

 

[tommyt53]

If you dont drain cock number two then your filter gets clogged with water and the compressor will boost just fine but discharge to the bottle gets impared. Ie different readouts.
New filter and new drain routine?

Right on

 

[tommyt53]

Have you've been draining moisture every 10min at both cranks?

Mine has done past 10 hours i have'nt had any issyes.

Seems like a water block between moisture trap and filter.

View attachment 287177

No...I forgot

 

[Ironman482]

First thing I had to replace on my nuvair mch6 was the gage ,it leaked , got a larger one easier to read .

 

[Scotchmo]

When using a high rate compressor, do NOT fill tanks through a micro bore hose. That might not be your problem, just a warning because doing so could cause that symptom.