07-04-2020, 07:19 PM
Bill’s way works. Several other techniques for bleeding down the air system quickly are to turn off all compressors and gently and repeatedly pump brakes.
Or, my favorite is to use my “adaptor” that goes into the aux air supply port in the passenger side engine bay. The adaptor is used to supply external air to the coach. Mine is male quick connect on both ends with a quarter turn valve in the middle. Stick it in the port,open the quarter turn, and pressure is gone. Quickly.
You could also open the petcock on the ping tank located in the passenger drive wheel well. That tank needs to be drained anyhoo.
That configuration of tees and junctions at the 12V compressor is a great place to use Loctite 545 on the fittings. It is a jig saw puzzle to fit all those fittings together and align them without leaving one or two fittings a little on the loose side. The 545 is made to work in those less than ideal tightness conditions. Just give it 12 hrs to set before pressurizing the system.
Or, my favorite is to use my “adaptor” that goes into the aux air supply port in the passenger side engine bay. The adaptor is used to supply external air to the coach. Mine is male quick connect on both ends with a quarter turn valve in the middle. Stick it in the port,open the quarter turn, and pressure is gone. Quickly.
You could also open the petcock on the ping tank located in the passenger drive wheel well. That tank needs to be drained anyhoo.
That configuration of tees and junctions at the 12V compressor is a great place to use Loctite 545 on the fittings. It is a jig saw puzzle to fit all those fittings together and align them without leaving one or two fittings a little on the loose side. The 545 is made to work in those less than ideal tightness conditions. Just give it 12 hrs to set before pressurizing the system.
Richard and Rhonda Entrekin
95 Newell, 390 Ex caretaker
99 Newell, 512 Ex caretaker
07 Prevost Marathon, 1025
Maverick Hybrid Toad
Inverness, FL (when we're home
)