Re: 1998 U-320 Manual Air bag use
Reply #5 –
If you are trying to raise with only the hwh compressor, try having the engine running and then it should get the bags inflated enough. If you have someone to help you have then push the raise button while you install the blocks otherwise hold the raise with the engine running after the air pressure reaches 125 hold the raise a little longer then turn off the engine before releasing the raise button.