Inthecourseofoperation,theinflatedrubbershipboardguardmaybepricked,punctured,scribedorwornoutfromtimetotime.Oncetheairinsidetheguardescapes,theinflatedrubbershipboardguardlosesitsfunction,andrepairbecomesnecessary.Thefollowingistheintroductiontotypicaltroubleshootingandrepairmethods:
I.Air...
I.Air...




