Hydrovane 501 long build up time.

I have a 3 phase Hydrovane 501, seems to work fine sometimes - taking 3 or 4 minutes - to come up to 10 bar. Other times it can take 20 minutes to do the same. What might be the reason please?

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Jun 20, 2017
by: Carl

When it is taking longer than usual to build up pressure, try closing the outlet valve from the receiver to your system.

Does it still take as long or does it then build quickly?

Sounds like the air demand is increasing and the compressor is struggling to keep up? Which would possibly mean that your system either has leaks or compressor isn't big enough.

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Jun 19, 2017
Slow pressure
by: Doug in s.d.ca.

Could be the lube you're using, or the vanes are shot and/or sticking, especially if there's a long time between uses.

Maybe try new oil if it's been a while.

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