I've searched here and through the manuals and haven't found anything, probably because i don't know what they're called. Right underneath the water heater, on the outside just under the bottom of the storage door there, there are 3 small cables with pull loops, that go most of the way under the coach to a hole where the lines diappear.
I'm not quite dumb enough to just yank on them and see what happens. My guess is maybe they have something to do with the winterizing process? But if they are dump valves I have yet to find out how to close them back up...
Cables to drain moisture from air tanks.
Build up air pressure and pull each cable.. Get on a knee looking under the coach and watch for moisture spray if any.. If there is much then you could have an air dryer issue... Not uncommon to have a bit, just not excessive.
After reading the responses here, I decided this prolly wasn't James Bond's rig before I got it, with Q's special modifications ("Self. Destruct. In. 10. Seconds")... I bravely pulled one of the cables and found out how to purge the air tanks. Maybe a couple shotglasses worth of water from the 3 of them, didn't seem all that bad. Reckon Ii'll go take a look at the air dryer anyhow just to be sure. Thanks for the help y'all!
Jay, While you are under there determine which is the wet tank, should only be moisture in the wet tank, air dryer should protect the the system. Any moisture in the other tanks is sign that dryer has failed. Compressed air flow should be to wet tank, to dryer to other other tanks.
Gary B
Post Modified, Head up my A.., sequence was wrong, now corrected ( I think ), meds have not kicked in this AM. :)
That's not excessive moisture. I have a Kenworth on the lot now that has a full dryer filter.. Air dryer pops off as it should but i check the tanks periodically myself because I can't count on the driver to.. bled probably a half gallon of water off 2 tanks yesterday.. pulled the cables and they blew water from just under the drivers door where the tanks are mounted all the way to the front drive axle... That much moisture effects everything on a truck from transmission shift to air suspension and trailer brake valves and suspension as well... especially in the winter time when the moisture freezes.. clean air is necessary.