On Board Compressor

[threedogs]

I see now you have closed off the system , so it holds pressure in the lines.
I would be fitting a small tank underneath, to run locker if needed, air horns ,etc
But your system will work now you only need 2mtrs of hose to reach all 4 wheels.

Also some compressors wont work when needed because of high under bonnet temps

[angelo_f]

Angelo, where is the air filter for the inlet. I was going to run a hose and fit the filter inside the cab on the passenger side fire wall, but I mounted the compressor under a rear passenger seat.

Mine has the filter screwed onto the side. The compressor is quite high so it won't get much rubbish in it. But it is a good thing to consider - I should see about how to make it easier to check and clean

[angelo_f]

I see now you have closed off the system , so it holds pressure in the lines.
I would be fitting a small tank underneath, to run locker if needed, air horns ,etc
But your system will work now you only need 2mtrs of hose to reach all 4 wheels

This is the best part - the compressor came with good quality hose (That is the green hose you can see) so I cut it and used that as my hose.

[threedogs]

KIS is always good well done

[makeitfit]

I got the pressure switch off ebay
http://www.ebay.com.au/itm/VIAIR-90-...item337cfa474a

The way it works is like this (Keep the switch on the actual pump on)
Initial condition -there is zero air pressure and rocker switch is off

1 - Turn the rocker switch on and your motor (or accessories) on. Power runs from accessories through the rocker switch, through the pressure switch contacts, through the relay and energises the relay, thus closing relay contacts and allowing power through compressor.
2- When the pressure in the system reaches the 'off' pressure on the pressure switch (int the case of the one I have shown in link - 120psi), the contact on pressure switch opens, causing the relay to de-energise, opening the relay contact and stopping power to the compressor.
3- As you use the air, the pressure drops to below the 'on' setting (in the case of the one I have shown in link - 90psi), the contact on presure switch closes again and the relay is energised again turning compressor back on.

Use an inflator with a gauge like this one to pump the tyres up.
http://www.supercheapauto.com.au/onl...d=293784#Cross

Also, make sure you use a relay and don't just use the pressure switch to supply the power. Those pressure switches are only rated at 20A

Brilliant explanation thanks a lot I'm all enthused now and will fit mine this weekend . KIS indeed cheers

[BigRAWesty]

Do these have a temp cut off?? Or are they made for under the bonnet??
I bought one similar, a portable though. And mounted it under the bonnet.. It never worked due to the temp cut off.
Was lucky enough to get a replacement, but only coz I knew the sales bloke..

[mudnut]

Mine has the filter screwed onto the side. The compressor is quite high so it won't get much rubbish in it. But it is a good thing to consider - I should see about how to make it easier to check and clean

I asked because dust will quickly clog the filter, and also heard of the compressors working parts failing because of dust acting as an abrasive on them.

[angelo_f]

Do these have a temp cut off?? Or are they made for under the bonnet??
I bought one similar, a portable though. And mounted it under the bonnet.. It never worked due to the temp cut off.
Was lucky enough to get a replacement, but only coz I knew the sales bloke..

It was not designed for under bonnet. However, if you are worried about temperature, just pop the bonnet.

[angelo_f]

I asked because dust will quickly clog the filter, and also heard of the compressors working parts failing because of dust acting as an abrasive on them.

It has a filter that can be cleaned and replaced. Remember, however, that you are not running the compressor while you are driving, but when you are stopped (as opposed to your engine air filter). But it is still a good point

[BigRAWesty]

It was not designed for under bonnet. However, if you are worried about temperature, just pop the bonnet.

No mine broke the temp cut off device. Even once cooled to ambient temp it was still dead lol.