[NeBob]

Upon returning from our latest trip I accidentally bumped the tag axle switch to the up position. I immediately heard air coming from the axle area. Now when I start the unit as soon as it has pressure built up the air discharge can be heard. This does not immediately affect the main air system. My question is the tag axle switch is a three position switch. Does the bottom position deflate the axle and the upper position inflate it? I have not been under the coach yet but will do so this weekend. My understanding is there is a pressure gauge in the curb side engine housing. If this is the appropriate gauge it is inflating to around 100lbs which seems high. 
Any help or suggestions would be appreciated.