Older ML-5 lubrication?

[Iron Beaver]

Older Curtis ML-5 air compressor lubrication?

Hi everyone,

I have an older Curtis ML-5 Masterline 5 HP air compressor. There is no oil filter or pressure gauge. I am wondering how to tell if it is pressure or splash lubricated? The Curtis website only mentions the newest series, which is built by FS-Curtis and not the now-nonexistent Curtis-Toledo company, like mine.

What would I look for, short of taking it apart, to tell if the pump is pressure lubricated or splash lubricated?

Thanks!

 

[Schurkey]

Wild Guess: If you have to ask, it's splash lubed.

Find a service manual, see if they mention an oil pump. Look at the exploded view, see if the rod(s) have dippers.

 

[Iron Beaver]

IIRC the manual shows neither dippers nor an oil pump. I haven't been able to find a service manual for the older ML-5 compressors, everything is for the new FS-curtis ones

 

[Iron Beaver]

Re: Older Curtis-Toledo ML-5 air compressor lubrication?

Also, the FS-Curtis website states that they use a central ring to pump oil. I believe them, but I don't know how I would tell on mine short of dismantling it. I am hopeful that someone here has already done so or just knows the answer

 

[seber]

Anything less than CW100 in the ML series is splash lubricated.