12-14-2020, 05:08 PM
As with most of the issues with my coach, there always seems to be a part 2.
This morning my coach's air was at 0. I went to the bay that has the pressure switch, and it was engaged but the pump not running. I checked the breaker and it was good. So, I cranked the bus to get the air pressure up so I could open the generator bay. I have a jun-air type air compressor - it's a different brand but looks just like a jun-air. There wasn't any oil. This is a very recent change, because I checked and added oil a couple of weeks ago. I looked to see if there was oil in the bay. It seemed dry. There was a bit of oil on the air line out of the pump. I added oil, but didn't have enough to see in the sight glass. When I checked the pressure switch again, the pump came to life. I quickly turned it off.
My question is this: Where did all the oil go? Did it blow past the piston into the air tanks? Why did power back up? Is there a safety switch inside that shuts the pump off to protect it? Is the pump OK?
David
This morning my coach's air was at 0. I went to the bay that has the pressure switch, and it was engaged but the pump not running. I checked the breaker and it was good. So, I cranked the bus to get the air pressure up so I could open the generator bay. I have a jun-air type air compressor - it's a different brand but looks just like a jun-air. There wasn't any oil. This is a very recent change, because I checked and added oil a couple of weeks ago. I looked to see if there was oil in the bay. It seemed dry. There was a bit of oil on the air line out of the pump. I added oil, but didn't have enough to see in the sight glass. When I checked the pressure switch again, the pump came to life. I quickly turned it off.
My question is this: Where did all the oil go? Did it blow past the piston into the air tanks? Why did power back up? Is there a safety switch inside that shuts the pump off to protect it? Is the pump OK?
David
David and Teresa Brown
1999 Coach 513