CTIS works somewhat for the 1st time

[Reworked LMTV]

I bypassed the pressure switch at the tank, and new sounds that I had never heard before occurred. Yay! It looked like only the front tires responded to the Sand command. Maybe a bad valve in the rear? I have heard of people turning up the pressure at the regulator to trigger the switch. Is this the regulator at the tank, or is there on at the compressor?

 

[ramdough]

I bypassed the pressure switch at the tank, and new sounds that I had never heard before occurred. Yay! It looked like only the front tires responded to the Sand command. Maybe a bad valve in the rear? I have heard of people turning up the pressure at the regulator to trigger the switch. Is this the regulator at the tank, or is there on at the compressor?

I have heard that because the front has more weight on it, you see the pressure drop more and deflation is faster.


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[Ronmar]

You set the air pressure in the system using the adjustment on the governor on top of the air compressor. You need to connect a pressure gauge onto the wet tank to do this properly though.
the thing that looks like a regulator on the wet tank is called a protection valve and shuts off air to CTIS and cab suspension when the wet tank pressure drops to 85 PSI to save air for the brake system...

 

[Third From Texas]

I've found even working CTIS controllers can be temperamental.

As a rule I step down from Highway > XC, then XC > Sand, etc.

Same with airing back up (ie: Sand > XC then Highway).

ymmv

 

[Reworked LMTV]

I've found even working CTIS controllers can be temperamental.

As a rule I step down from Highway > XC, then XC > Sand, etc.

Same with airing back up (ie: Sand > XC then Highway).

ymmv

I'm going to try your technique today : )