hydrovane 15 has problems starting

by hans
(billericay uk)

Hi I have a hydrovane 15 compressor it runs OK, it stops to its set pressure (100 psi), but when it try s to start it has problems,I have notice that there is pressure in the hydrovane units gauge that drops slowly.If I wait for this to drop completely it will restart.check valve is OK.

could you give me some info for what i need to do.
thank you.

Comments for hydrovane 15 has problems starting

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Nov 27, 2014
by: Bill

Well Tom, it sure could be.

Can you empty the tank, start the compressor, let it run up to cut out, and then ensure that the unloader works?


Nov 26, 2014
by: Tom

i have a 501 that does the same. The motor struggles to turn over until most of the airhas gone from the receiver. will this be the unloader valve?

Sep 30, 2014
Hydrovane sluggish start
by: Bill

You don't say what problems your compressor has on start up, so I'm just guessing.

First off, if your tank gauge pressure level is dropping slowly when the compressor is off and you are not using compressed air, then you may have a leak.

Or, the pressure is dropping because you have a leaky tank check valve.

If the compressor is sluggish in starting, or sometimes pops a breaker, the unloader valve may be the problem too.



Dec 22, 2010
by: Anonymous

Dear Sir,

Could you let me know the oil grade to be used for Hydrovane-15 air compressor?

Kindly send me reply on shrirangkulka@gmail.com

Thanks in advance!

Warm regards,

Shrirang Kulkarni++

Hello Shrirang...

I respond to questions via the website, so that all people can benefit that I, and my wonderful visitors, share. I do not respond to questions via personal email. Sorry.

When it comes to oil for an expensive compressor like a Hydrovane, I don't make recommendations. Use the oil that they recommend, and contact them for that info, please.

For the DIY home compressor, if you don't have the manual, visit your hardware store and ask for compressor lubricating oil. I would expect that any brand will do for the intermittent compressor user, as long as it is compressor lube oil.



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