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Topic: Dash Air Service (Read 169 times) previous topic - next topic

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Dash Air Service
Need to charge dash air system.  Which is the low side service valve on compressor. Cummins engine, 325 hp, u270 series.

Re: Dash Air Service
Reply #1
What year coach? 96 or newer high and low side are not interchangeable you can't get it wrong.

Re: Dash Air Service
Reply #2
U270 is a 1998 model

Re: Dash Air Service
Reply #3
It should have a blue cap but may have been removed. The r134a recharge kits will only go on the low side fitting it won't fit on the high side.

  • jor
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Re: Dash Air Service
Reply #4
Here it is on a 97 8.3.
jor