5 H.P. Black Max 500BPL 60V # 2945125 Leaks

by Jean-Pierre Fontana
(6578 Billingsgate R.Mobile, Al. 36619 USA)

Builds up as it should, when shuts off under pressure, air leaks at pressure switch, until it starts again, Help.

Comments for 5 H.P. Black Max 500BPL 60V # 2945125 Leaks

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May 29, 2016
air tank check valve leak
by: Charlie D.

Where the pressure switch unloader and compressor discharge lines connect to the air tank fitting, there is a check ball located in the bottom of that fitting.

Take the fitting out and clean the check ball and seat. If it still leaks, buy a new fitting. WW Grainger, Tractor supply, northern tool all carry the fitting but it may have to be modified to work with your compressor.

Aug 20, 2015

by: Bill

It's difficult to be sure what the problem is Jean-Pierre, it would likely help if you read this troubleshooting page about leaking unloader valves.


If that doesn't help, please post a follow up comment.


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