Jonbrooks Posted March 28, 2021 Share Posted March 28, 2021 I have a dual needle air pressure gauge in one instrument. One green needle and one red needle. Not finding in the manual which color needle is for front tank and which is for rear? Link to comment Share on other sites More sharing options...
Dennis H Posted March 29, 2021 Share Posted March 29, 2021 Normally, the Green needle is for the rear tank and the Red is for the front.....Dennis Link to comment Share on other sites More sharing options...
Steven P Posted March 30, 2021 Share Posted March 30, 2021 Mine has that too and I forget which is which. But that got me thinking, there's a valve on each tank to empty the air to prevent condensation. With both tanks full, you should be able to empty one and watch the needles. Engine off, of course. Link to comment Share on other sites More sharing options...
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