JCB 2cx compressor

[tweco]

Have you gone off the Bristol type compressors?

yeah, getting bad to find in good nick, we run a engine driven compressor as well but prefer pto driven, less to go wrong!!

 

[tweco]

Hi I have put it on front links and that is the right direction for it. It's just to slow on direct drive. I need to put a pulley on it to speed it up but not found out what speed I need the compressor to turn at.

They are on eBay quite often.

I think they run around 1500 rpm, will have a look tomorrow

 

[Blue.]

yeah, getting bad to find in good nick, we run a engine driven compressor as well but prefer pto driven, less to go wrong!!

Bloody engine driven are always a pain.

Did you ever finish this one?

( sorry nicked your picture from BFF )

 

[tweco]

View attachment 12001

Bloody engine driven are always a pain.

Did you ever finish this one?

( sorry nicked your picture from BFF )

You did well to find that photo!!! yes and no, its all but done , just a few guards to do if we ever get time!! the compressor was sold off it and its now fitted with the engine driven compressor as the drive to the compressor was to much hassle so took the easy option and used an engine driven compressor.

 

[ciano1083]

hi Just to get this going again..
A friend has mounted 1 of these compressors from a 2cx and put it on a frame and put an old gearbox from a front linkage on it and it is turning in the right direction.
Its building the correct pressure not only doing 80 CFM and it is suppose to do around 140 CFM.
Any ideas to why this would be..
Cheers

 

[tweco]

Have you checked the output speed of the gearbox? the compressor should run at about 1600 rpm, if the gearbox used only reverses the drive it won't be fast enough.
Other things to check is oil level or it could need a new filter in the oil recovery tank ?

 

[ciano1083]

Have you checked the output speed of the gearbox? the compressor should run at about 1600 rpm, if the gearbox used only reverses the drive it won't be fast enough.
Other things to check is oil level or it could need a new filter in the oil recovery tank ?

Would those issues cause it to not put out the volume but still build the pressure?
I will check them out.

 

[Pheasant Surprise]

Would those issues cause it to not put out the volume but still build the pressure?
I will check them out.

If it's building the pressure but not got the volume would expect as tweco says it's not being driven fast enough. I believe the 2CX runs a direct engine PTO drive to the compressor, which would be similar revs to a road tow compressor which are direct drive.

The other obvious things to check are correct oil level, separator is clear and the unloader valve is working correctly and not stuck with a bit of grit - though that would show up as a lack of pressure rather than volume.