| [GMCnet] Good compressor buy at HF [message #252062] |
Fri, 13 June 2014 08:12  |
glwgmc
Messages: 1014
Registered: June 2004
Karma: 10
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Senior Member |
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Obviously, ".....120vac from your cheap 100+ watt inverter to power the compressor through the relay" should have been "...cheap 1000+ watt inverter...". While the one in the HF ad @ 3.5 cfm at 90psi is larger than you need (you only need one that will put out around 1cfm @ 90psi) it certainly qualifies as inexpensive enough to fit most budgets. I like the smallest of the Senco nail gun compressors better at around the same price or even less. You can find those at any big box store.
Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR
Visitors always welcome!
glwork@mac.com
http://jerrywork.com
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Jerry & Sharon Work
78 Royale
Kerby, OR
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| Re: [GMCnet] Good compressor buy at HF [message #252065 is a reply to message #252062] |
Fri, 13 June 2014 08:50  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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I could easily, but don't, use Jerry's suggestion -- for no good reason.
When dumping the holding tanks, I like to lower the rear suspension all the
way to get good evacuation. When there are others waiting to get on the
dump station it's embarrassing to wait 2-3 minutes, at least, for the rear
end to rise enough for me to move away.
Some years ago I fixed that problem by re-packaging a Craftsmen 120 vac
portable compressor into a package that fits in the refrigerator
compartment. Since I already had a 1500W inverter, power was no problem.
Using an old Chevrolet swing-down gas filer door/tag mount, I made a
compartment behind the license plate. There I have two spring loaded
switches which independently operate the left and right air bag dump
valves. There are also switches for the two macerators (one for each
tank), and a third, push button, which controls the 120 vac compressor via
a 12 VDC relay,.
After lowering the rear all the way and dumping, I press the push button
and the rear rises from full down to full up in about 30 seconds. No more
grinning like a monkey at the waiting folks behind me. :-) Or maybe I
should say, now I CAN grin like a monkey.
The only thing keeping me from using the high capacity compressor full time
is that I don't need to since the 12 VDC one runs only rarely and briefly.
If it should fail, I'd probably add that 3' of 1/4" tubing and 6' of wire.
:-)
It does occasionally get exercised for tire inflation, etc., via its high
pressure quick disconnect.
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, etc., etc.
www.gmcwipersetc.com
On Fri, Jun 13, 2014 at 9:12 AM, Work Jerry wrote:
> Obviously, ".....120vac from your cheap 100+ watt inverter to power the
> compressor through the relay" should have been "...cheap 1000+ watt
> inverter...". While the one in the HF ad @ 3.5 cfm at 90psi is larger
> than you need (you only need one that will put out around 1cfm @ 90psi) it
> certainly qualifies as inexpensive enough to fit most budgets. I like the
> smallest of the Senco nail gun compressors better at around the same
> price or even less. You can find those at any big box store.
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Good compressor buy at HF [message #252093 is a reply to message #252065] |
Fri, 13 June 2014 21:10 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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The compressor runs so rarely that going to a larger compressor makes no sense to me. If you want additional quick lift capacity, simply add a larger tank. I have an old fireman's air tank rated at 2000 PSI. I mounted it under the coach to one of the crossover frame rails. I fill it with the standard on board compressor. Now I have an additional couple of gallons of air when I want it to quickly raise the coach. It is all automatic and I have forgotten that it is even there.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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