On the air system, builds up till air dryer blowers off then not building again till pressure drops to 60 psi then builds again till blow off and repeats process, has new compressor, governor, and dryer
Mack air compressor not kicking back in till 60 psi
Discussion in 'Mack Forum' started by EarlBob, Aug 8, 2021.
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Adjust the governor on air compressor.
If not serviceable, replace it.
If internal governor, replace air compressor.
Skill level... medium
Time to try fix... 15 minutes
Time to replace... 1 hour
Patience level... Low -
I've been fighting this thing for a week now, new compressor, and air dryer 3rd governor on it now. Adjusted governor to 120 psi blow off but still compressor doesn't kick in till pressure is at 60 psi
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Sorry I couldn't help more. -
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I appreciate the replies but it turned out I got 3 bad governors from the parts store. Went to a different store got a different brand of governor. Must have been a bad batch of them.
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