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Topic: Air System Schematic Symbols (Read 624 times) previous topic - next topic

Air System Schematic Symbols

I'm tracking leaks on my air system and am trying to understand the schematic symbols. 

On some of the lines, there is a rectangle with an arrow inside.  Is this the symbol for a check valve?  Is the symbol for a junction in the line a circle or half circle around the junction?

Thanks,

Rich
Rich and Peggy Bowman
2002 U270 3610 WTFS, build #5939--"Freedom"
2022 Jeep Grand Cherokee Summit 4xe
SMI AirForceOne brake system
PakCanoe 15

Re: Air System Schematic Symbols

Reply #1 –
The rectangle with the arrow is a check valve. 
Just above the HWH compressor is a four way of different size tubes.
From the front brake tank there is a safety valve then a three way connection of similar sizes then a check valve and then a four way of same size tubes.

Looks like a T with a check valve coming into the tank on the left. And a two way check valve T (one way out) on the top of the tank.

No symbol reference so these are what I have been using.  My best guess.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Air System Schematic Symbols

Reply #2 –
Thanks Roger.

Rich
Rich and Peggy Bowman
2002 U270 3610 WTFS, build #5939--"Freedom"
2022 Jeep Grand Cherokee Summit 4xe
SMI AirForceOne brake system
PakCanoe 15

Re: Air System Schematic Symbols

Reply #3 –
I am trying to understand my air schematic and hope someone can help me with the symbols and notations used.

I assume that the arrow in a rectangle represents a one-way check valve. What is the meaning of a number in a box on an air line? In the air suspension sub-system I assume that a circle with an adjacent number in a box is an air bag.

Am I correct in these assumptions?
Royce & Denise, MC #17410
'01 U320 4220 ISM450 Build #5895 SOLD
Toad: '10 Honda CR-V

Travel makes one modest. You see what a tiny place you occupy in the world. - Gustave Flaubert

Re: Air System Schematic Symbols

Reply #4 –
Merged with a recent previous topic on a similar subject
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Air System Schematic Symbols

Reply #5 –
Thanks, Michelle.
Royce & Denise, MC #17410
'01 U320 4220 ISM450 Build #5895 SOLD
Toad: '10 Honda CR-V

Travel makes one modest. You see what a tiny place you occupy in the world. - Gustave Flaubert

Re: Air System Schematic Symbols

Reply #6 –
Quote from: BamaFan –
I assume that the arrow in a rectangle represents a one-way check valve.
What is the meaning of a number in a box?
In the air suspension sub-system I assume that a circle with a number in a box is an air bag.

1 Yes
2 That is your air line # designation all your air lines should have a sticker on each end that should match the ones on your prints.
3 Our air bags are a letter "S" in a circle on our prints but that is for a '97. With yours being a '01 they may have changed the labels. The air line that feeds the air bag is labeled with a number in a box like the rest of the air lines.

Pamela & Mike


Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."