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Glad you got the suspension air’d up.
I misspoke earlier, airing up FROM THE AUX side of the system (suspension) will not air up the primary side of the system (i.e. the brake reservoirs) due to the PPV valve just upstream of the chassis aux tank. Under normal operation the bus is air’d up from the primary side and when the PPV see’s ~75psi on the supply port it opens the delivery port to the aux system which air’s up the suspension. That in-rush of air to the chassis aux tank is the big whoosh of air you hear when airing up.
Clint & Tammy Summers
2000 XL 45 Country Coach (rivets)
1977 FC31 Bluebird Wanderlodge (more rivets)
Vonore TN