LC110 leak

The following is from my post on Crackpage after fixing, and minor testing.



A post on AGN prompted me to check on how long it took to fill the hose to the tank valve from my Daystate LC110.

I had an interesting discovery that I had not noticed before as I dont typically stand by the compressor, or tanks other than for the usual 10-15 minute purge.

What I saw was little water/oil bubbles from the drain. I figured that I hadn't shut the bleed valve completely, but that wasnt the case. I then covered the drain with my finger and I thought I detected pressure build up, but my neuropathy prevents me from feeling much of anything, so I wasnt sure. I spit on my finger and detected bubbles. I then confirmed what I already knew at that point by trying to put a shotglass full of water under the drain.

I depressurized the whole system, nervously unscrewed the hand tight valve knob, (nervously because I've had a string of breaking stuff the last month), wiped down the thing and put it back in.

This fixed the problem, for now anyway.

I now have 13.4 hrs on the compressor. I had planned on running a drain tube down to a bucket to keep my bench clean when I bleed the system, but I hadn't done it yet due to the goop my gauge is still puking out a bit. Had I run the hose I would never have noticed the leak.

I filled up a 60 min airtank from 280bar to 310 and it seemed a wee bit faster, but that's subjective. I have several other tanks that need filling, but my oil is dirty and I'm not running the thing until I change the oil again.

That's unexpected too. I changed it at 5 hrs, and when I checked it at 10 hrs it was still clear. I suspect it's still breaking in though, and I think I'll change it every 5 or so hours the rest of the summer.
 
After the initial oil change to clean out the break in residue at five hours you only need to change the oil every 25 hours or annually, whichever comes first. Nine times out of ten when a dive compressor's fill times increase the problem is a leak in the connections leaking somewhere rather than a compressor malfunction. It is easy to see if there is a leak by placing a deadhead on the end of the hose if you have a foster quick connect. If you have a 300 Din on your fill hose then just run the compressor with the tank valve closed. After it shuts off at full pressure just see if the compressor's pressure gauge starts to move. If there are no leaks it will not show a perceptable pressure loss. If the gauge is moving, you have a leak that will greatly add to your fill time.
 
After the initial oil change to clean out the break in residue at five hours you only need to change the oil every 25 hours or annually, whichever comes first. Nine times out of ten when a dive compressor's fill times increase the problem is a leak in the connections leaking somewhere rather than a compressor malfunction. It is easy to see if there is a leak by placing a deadhead on the end of the hose if you have a foster quick connect. If you have a 300 Din on your fill hose then just run the compressor with the tank valve closed. After it shuts off at full pressure just see if the compressor's pressure gauge starts to move. If there are no leaks it will not show a perceptable pressure loss. If the gauge is moving, you have a leak that will greatly add to your fill time.

The 25 hour mark is what I had thought too, but my oil is very dirty, and it worries me.

I had changed it at 5 hrs.
 
PerkyVal are you doing a cool down run procedure after filling your tank? I’m thinking part of if not all of my problem with my Daystate was related to running the compressor too long and not cooling it correctly. When I got my unit there was no manual or advice on how to use it.

Yes, for at least 2 mins, and I also let it run unloaded for a minute or two before filling.

I'm hoping these procedures will extend the life of my compressor