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Full Version: Aux Air: was Dump Valve Rebuild?
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Pete Masterson

I have s modest sized shop air compressor ... and I've thought about
mounting it onboard to allow pressurizing the system for the dump
valves. But it seems a waste to have to add a 100 lbs of compressor
for such a relatively small task (that is only done every 2 or 3 days
anyway). (It's not just the weight -- but also the space it requires.)

I don't know how long it takes an 8v92 to air up ... but it's less
than 5 minutes for the Series 60 to reach the 'blow off' at 120 PSI.
(Only 2 or 3 minutes to clear the low air alarm at 65 lbs.)

But, this leaves me with a question. I _thought_ I was shown a "shop
air" input in the engine compartment -- but I can't seem to find it
now. I have a air source located next to the AquaHot on the street side.

Is the 'source' connector also the 'input' connector for shop air?

Pete Masterson
aeonix1@...
'95 Blue Bird Wanderlodge WBDA 42'
El Sobrante, CA




On Feb 27, 2007, at 6:37 PM, Curt Sprenger wrote:

> Pete,
> I may be chiming in late on this thread. Our coach has two auxiliary
> compressors. A 12V auxiliary compressor for the toilet, and a 120V
> auxiliary compressor to do the same thing as the 8V92 engine
> compressor.
> I'm sure this can be added to your coach. The 120V airs up the entire
> coach system, toilet excluded and that will be changed in the future,
> another project, and I can dump the holding tanks once aired up and
> never start the 8V92.
>
> Curt Sprenger
> 1987 PT38 8V92 "MacAttack Racing"
> Anaheim Hills, Calif.
>
>
>
> Pete Masterson wrote:
>
>> As things are currently arranged, the auxiliary compressor only does
>> the toilet. It cuts in around 65# and cuts out at 90PSI. I'd be happy
>> if it did the dump valves. The suspension/brakes -- well, I'd just as
>> soon leave those alone. Anyway, I don't mind waiting for the air for
>> a departure ... the series 60 doesn't take all that long to
>> pressurize the system --- I usually run it to air up while I'm
>> raising the HWH jacks anyway, so it doesn't delay a departure much.
>> (I still go and visually check the HWH jacks to make sure they're
>> up.)
>>
>> Pete Masterson
>> aeonix1@...
>> '95 Blue Bird Wanderlodge WBDA 42'
>> El Sobrante, CA



[Non-text portions of this message have been removed]

Don Bradner

I *hate* alarms, and so does our dog!

I've developed a routine that admittedlly has only been used a dozen or so times
in the 1-1/2 months of my BB ownership that goes like this: Arising on the
morning of departure, I turn on the block heater and the master air pump switch.
Susp dumps still Down, so coach stays down on jacks.

Shortly before departure, Susp dumps are moved to Up, and jacks are retracted.

Engine is started only after all outside functions are completed, with shoreline
disconnect being the last because it turns off both block heater and air pump.
No alarms, short warmup (well under a minute), depart.

Haven't stayed with hookups anywhere long enough to need air for a dump other
than at departure, but if I did I would run the air pump for that.

On 2/28/2007 at 10:43 AM Pete Masterson wrote:

>it's less
>than 5 minutes for the Series 60 to reach the 'blow off' at 120 PSI.
>(Only 2 or 3 minutes to clear the low air alarm at 65 lbs.)

Don Bradner
90 PT40 "Blue Thunder"
Eureka, CA
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