Jimbo, You asked to me to keep you informed. Not sure that it's much to report actually, but I got my
Check Valve in the mail today and installed it at lunch time. Everything still works the same as before, only now I have some piece of mind that there is no back pressure on the compressor once it's pumped the system up to the 100 psi auto cut off.
I can't remember how much I mentioned before, so at the risk of repeating myself and boring the tits off everybody, here goes......
Hardware I use.....
(1) Max Air (Bushranger) compressor: hardwired into cargo area, sits on top of cargo drawer over left wheel arch, hard up against the side pocket of the Patrol GU.
(2) 3 litre receiver tank: mounted vertically with it's 3 holes pointing downwards, directly above compressor on the Milford Cargo barrier. I have left the standard outlet fitting on the Max Air, but as all my other existing hoses, tools etc used RYCO snap fittings, I have made up an adapter. So now, the snap fitting off the MaxAir's hose has been used (but not the hose). It has a male thread onto which I have attached my new
check valve (which has 2 female ends). Into the other end of the
check valve I have added a RYCO snap fitting (female outlet).
(3) I have a brass "T" piece. This has the following things attached to it. (a) a male RYCO fitting to attach it to the compressor; (b) the ARB pressure switch for auto cut-off (c) a 1/4" barb for a short length of air hose, which takes air to the bottom of the receiver tank.
(4) Receiver tank has 2 other outlets......(a) one has a brass barb with another piece of hose about 3 feet long which goes to the back of the cargo drawer shelf and has another brass "T" piece.....one sie of the "T" has a safety release valve....the other has another RYCO outlet for attaching air hose to pump tyres, use for blow-down gun etc
(5) 3rd (final) outlet off the receiver tank has a 1/8" hard plastic type hose which uses push-on fittings ("festo" I think they're called). This plastic hose leads forwards along to the front of the truck, terminating on the bullbar with another RYCO outlet for doing the front tyres etc. Along the way (it travels inside the vehicle as far as the passengers footwell firewall), I have installed 3 "T" pieces in this plastic hose. The first of these is in the passenger's footwell, just before the hose goes through the firewall. This "T" leads over to the driver's side, up through the front of the dash near the bottom right corner of the windscreen, and is connected to an air gauge which is mounted on a bracket off the grab handle on the "A" pillar. After going through the firewall and coming up to bonnet level, the other 2 "T" sections are connected close to each other on the original plastic hose. The first of these leads another piece of this plastic hose up the outside of the "A" pillar on the pasenger's side (hidden by the
snorkel for the most part), to a set of loud Grand Vitesse air horns mounted on the roof rack. (Note that the air hose is contained inside a suitable length of split electrical tubing which also contains various wires for the air horns solenoid as
well as wiring to the reversing/work lights on the back of the roof rack). Meanwhile, back under the bonnet the other "T" piece leads across the front of the firewall to the ARB air locker solenoid.
(6) Power for the compressor is provided via a 40 amp relay (those double type with 6 screw fittings. It is hard wired. The other side of the relay is used to power the ARB fridge; also hard wired. There is a switch located near the front passenger's
seat belt buckle (there were 3 plastic switch blanks there) which I can use to activate the compressor.
Hope this assists with your plans Jimbo.....let me know if you need any more info.
Cheers,
Roachie