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Topic: 1996 U320, 12V air compressor location (Read 646 times) previous topic - next topic

1996 U320, 12V air compressor location

Anybody know where the 12V auxiliary air compressor is located on this coach?  I haven't been able to locate it so far, and I never hear it run when on shore power.  The Tech at Foretravel did a quick look "in the usual places" while the unit was in the service bay last week and didn't locate it either.  Said he would have to pull the drawings for positive location since they mounted these in various places.  At $110 an hour, I decided I would chase it down myself.  The 96 does not appear to have a 120V aux compressor as my old U280 did.
Current coach 1996 U320 40'
Previous coach, 1990 36' U280

Re: 1996 U320, 12V air compressor location

Reply #1 –
Quote from: Kemahjohn –
Anybody know where the 12V auxiliary air compressor is located on this coach?  I haven't been able to locate it so far, and I never hear it run when on shore power.  The Tech at Foretravel did a quick look "in the usual places" while the unit was in the service bay last week and didn't locate it either.  Said he would have to pull the drawings for positive location since they mounted these in various places.  At $110 an hour, I decided I would chase it down myself.  The 96 does not appear to have a 120V aux compressor as my old U280 did.

Mine is behind the inverter against the ceiling
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: 1996 U320, 12V air compressor location

Reply #2 –
That's the first place the tech looked for it, no luck
Current coach 1996 U320 40'
Previous coach, 1990 36' U280

Re: 1996 U320, 12V air compressor location

Reply #3 –
What if you dump all the air in the bags with the engine stopped. Then use the manual controls to raise the coach. Maybe ab,e to find it by locating the sound?

Roland
1993 U280 4341
2010 Jeep Liberty
The Pied Pipers

Re: 1996 U320, 12V air compressor location

Reply #4 –
You can find it when it is running easier I would think too.  ROland is right, dump the air and then air it up by lifting it on the level system that will cause the compressor to come on.
2025 Wanderbox Outpost 32 on F600 Expedition Motorhome
2015 Born Free Royal Splendor on Ford 550 nonslide version  for sale
Former Coaches  covering. 360,000 miles
1999 34 U270
2000 36 U320
2001 42' double slide U320
2018 Jeep Rubicon

Re: 1996 U320, 12V air compressor location

Reply #5 –
On my 295 it is above the house batteries in the driver's side fuel tank bin.
hth
Elliott & Mary Bray
ex. 1996 36' U295 - Build 4879
ex. 2018 Coachmen Leprechaun 319MB
 

Re: 1996 U320, 12V air compressor location

Reply #6 –
When I hear air hissing to relevel does that mean it was done by a compressor?

Or it was done to relevel by letting air out of one air bag and not by compressor?

best, paul
1999 U320 40' 1200 watts on roof. 12cf AC/DC Cold plate fridge/freezer. VMS 240 CL Honda Element

Re: 1996 U320, 12V air compressor location

Reply #7 –
Dumping the air would be the normal way to find it--- listen for it running, however, I believe that it is inop, that's why I'm looking for it.  As far as I can tell, it doesn't run.  I just purchased the coach and am still learning the ins and outs.
Current coach 1996 U320 40'
Previous coach, 1990 36' U280

Re: 1996 U320, 12V air compressor location

Reply #8 –
Quote from: Paul Smith –
When I hear air hissing to relevel does that mean it was done by a compressor?
Or it was done to relevel by letting air out of one air bag and not by compressor?

B. Letting air out.

Leveling system first tries to level by lowering the "high" side (or end).  You hear the air being released from the bags (actually 2 bags - it works in pairs).  If that doesn't work, it tries to raise the "low" side (end).  You will hear the compressor running - very distinctive sound, just like those air pumps you plug into your cigarette lighter to air up your tires.  That is why it should be easy for the OP to find his "hidden" pump, IF he can just get it to run.
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: 1996 U320, 12V air compressor location

Reply #9 –
My 12V compressor is in the compartment just above the house batteries.
1996 U320
Grant and Betty
1996  U320C  40' WTBI 4949, Xtreme FBP 2011
2003 CRV

Re: 1996 U320, 12V air compressor location

Reply #10 –
Remove compartment cover above house batteries and look behind. Leave cover off, as it is not needed.

Re: 1996 U320, 12V air compressor location

Reply #11 –
This is where mine is located; above the house batteries (I've enclosed my shunt/fuse area).
Grant and Betty
1996  U320C  40' WTBI 4949, Xtreme FBP 2011
2003 CRV
 

Re: 1996 U320, 12V air compressor location

Reply #12 –
Many thanks!  I'm out of town until Friday, but will check when I get back.  I plan to add a 120V air compressor anyway, I really like the one on my old 280.
Current coach 1996 U320 40'
Previous coach, 1990 36' U280