B61T air compressor install tips needed

[GearUpJammer]

After troubleshooting all the common problems (no leaks,new governor,degunking unloader valves),I’ve decided to swap out my Tu Flo 500 for a rebuild.I’ve had the truck for a year and have been slowly going through it to get it roadworthy and make it a “rolling restoration “.The most air pressure it ever built was 10 psi and now it won’t even read on the gauge.I’ve made up my mind to just swap the compressor out and looking for tips and advice on the best way to do it without dropping 50 pounds on my chest.Thanks and have a great day!

[mechohaulic]

did you take off the discharge line from compressor check for any air being discharged ? keep in mine the air temp from compressor is extremely warm (hot), place a rag/ wear gloves . air coming from compressor yet no build up also consider the discharge line which should be steel/ copper has the short section of flex braided line that is known for collapsing internally. if end  result is removal ;no easy way. remember the compressor may hold just enough oil to make a mess when tipping it out from frame. don't want someone under it assisting removal.

[mowerman]

I would try to borrow an engine hoist .. but as Mecho mentioned it’s probably a small issue good luck… bob

[HarryS]

I did that job a couple of years ago and as Bob mentioned used my trusty engine hoist. My old air compressor would build air but also passed a lot of oil into the system. It is also a good idea to trouble shoot the system as Mecho recommends before just replacing the compressor.

[GearUpJammer]

3 hours ago, mechohaulic said:

did you take off the discharge line from compressor check for any air being discharged ? keep in mine the air temp from compressor is extremely warm (hot), place a rag/ wear gloves . air coming from compressor yet no build up also consider the discharge line which should be steel/ copper has the short section of flex braided line that is known for collapsing internally. if end  result is removal ;no easy way. remember the compressor may hold just enough oil to make a mess when tipping it out from frame. don't want someone under it assisting removal.

I had the line off at the wet tank,there was some air coming out.I wasn’t aware of the braided line,I’ll check that.Thank you.

[GearUpJammer]

Probably hard to tell how many PSI without a gauge but here’s a short video clip

[mowerman]

Wow from that short video clip it looks like it’s blowing out of there pretty hard. Good luck don’t forget to check your check valve. Also that may be all it is good luck.

[mowerman]

Did you say the compressor was blowing oil out of it?

[GearUpJammer]

4 hours ago, mowerman said:

Did you say the compressor was blowing oil out of it?

Thanks,I will check it out.Didn’t notice much oil coming out.

[mowerman]

Excellent you might not have to touch it

[T-Mack1]

Reminder,  you might also check for significant air leaks.    When our Areo-Quip line to the brake treadle went (internal lining cracked),  we couldn't build pressure.    Replaced it and now we build pressure quick.  Still have some kind of leak as it bleeds down if a few hours.  

[skydawg]

I thought pressure always bleeds down after a few hours.

[Brocky]

13 minutes ago, skydawg said:

I thought pressure always bleeds down after a few hours.

A good tight system should hold air for several days...

[Geoff Weeks]

I have trucks that will hold some pressure overnight Like 25 psi left. 

The real test of a system is how many minutes it will go between compressor cycles while going down the road. Best truck I had, truck and trailer on air ride, air wipers, would go 45 minutes between cycles of the air drier.  Anything less the 15 minutes and you have work to do.   

I haven't seen an air system that will hold for several days on the main system. 

My air start would hold enough air to start for 4 weeks, but the main system will be empty.