06-01-2022, 08:34 AM
ken,
the air port in the rear should not be leaking. like all couplers they hold the air in until you put the air hose or mail fitting in.
a picture would help us of what your setup is. on my 99 it didnt have an air port but the line was there and capped off so i added a shop air port.
some coaches have the air doubler plumbed in as well and that should be valved off when not using.
i pretty much only use prevost non whipping couplers in my shop and coach nowadays. pricey but really nice
https://www.amazon.com/Prevost-071201-In...B01AKEITRQ
tom
the air port in the rear should not be leaking. like all couplers they hold the air in until you put the air hose or mail fitting in.
a picture would help us of what your setup is. on my 99 it didnt have an air port but the line was there and capped off so i added a shop air port.
some coaches have the air doubler plumbed in as well and that should be valved off when not using.
i pretty much only use prevost non whipping couplers in my shop and coach nowadays. pricey but really nice
https://www.amazon.com/Prevost-071201-In...B01AKEITRQ
tom
2014 Haulmark 40' Super C on Freightliner Cascadia ISX15 Easton 13 speed
Former Owner 1990 38' Newell Coach 236 8V92
Former Owner 1999 45'8" Newell Coach 526 Series 60
Former Owner 2002 45'8" Newell Coach 608 Series 60