dantastic Posted September 22, 2015 Author Share Posted September 22, 2015 The TMax is advertised with 45A draw so it must come with an internal relay, there is no way they would run 45A through the switch! I have got hold of a tank from an Audi A8, 5.8L 16bar. I think it should be just about right for my needs. Quote Link to comment Share on other sites More sharing options...
Lewis Posted September 22, 2015 Share Posted September 22, 2015 It's pretty much as Cynic-Al says - the black box contains a switch which, within reason, doesn't really care what voltage it switches. The compressor has a 60amp relay inside the black end cap of the motor, I just took the switching side of the relay circuit to the black box (pressure switch) instead of to the little switch on the compressor itself, so in my setup the pressure switch is only switching the relay, not the compressor Quote Link to comment Share on other sites More sharing options...
dantastic Posted September 24, 2015 Author Share Posted September 24, 2015 There we go. The box it came in was freaking huge! Quote Link to comment Share on other sites More sharing options...
Lewis Posted September 24, 2015 Share Posted September 24, 2015 Surprisingly heavy too aren't they Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 24, 2015 Share Posted September 24, 2015 That's the one, couldn't find a better price than D4x4 when I got mine Quote Link to comment Share on other sites More sharing options...
Scotts90 Posted September 25, 2015 Share Posted September 25, 2015 This is high on my to do list as well, would quite like a stealth install though. I have the YRM under drivers seat tool box that only has a fusebox in it so hopefully will be able to squeeze something in there. Quote Link to comment Share on other sites More sharing options...
dantastic Posted September 25, 2015 Author Share Posted September 25, 2015 I need something very portable to use between 4 cars so I am going to do something along the lines of this Quote Link to comment Share on other sites More sharing options...
dantastic Posted September 28, 2015 Author Share Posted September 28, 2015 @Lewis, What did you use as non return valve? I have bought one of these In the middle there is the pressure unloader valve which is meant to be operating the pressure release switch on the one way valve. Like in this diagrams But I can't find any one way valves anywhere with a pressure release like this. No experience with pneumatics so I think I've googled American terms and names for things. So what's that thingymabob called over here?? Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 28, 2015 Share Posted September 28, 2015 Here, but you can probably buy better quality stuff: http://www.ebay.co.uk/itm/Non-Return-Valve-3-8-to-1-2-Air-Compressor-Male-Thread-Brass-Check-Valve-/281726504420?hash=item4198354de4 Quote Link to comment Share on other sites More sharing options...
dantastic Posted September 28, 2015 Author Share Posted September 28, 2015 Thanks. I see now. I have all the major bits but I need a ton of fittings and adapters by the looks of things. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 28, 2015 Share Posted September 28, 2015 Finding a local pneumatic/hydraulic shop is very handy for that sort of thing, just walkin with the bits and ask what they have to join this to that etc Should be able to advise on pipe too, which can be tricky in a car, doing hard line... Quote Link to comment Share on other sites More sharing options...
mickeyw Posted September 28, 2015 Share Posted September 28, 2015 I think I have mentioned this somewhere before, but on my first OBA install I used a plumbing copper check valve. Something like this linky. I screwed this into a homemade ally adapter, with a port upstream of it, and connected that to the unloader valve. Quote Link to comment Share on other sites More sharing options...
Lewis Posted September 30, 2015 Share Posted September 30, 2015 Mine is exactly as Bowie says, though beware - those cheap Chinese fake brass not return valves are woefully weak - the cast pot metal can shear when you tighten the fittings Quote Link to comment Share on other sites More sharing options...
honitonhobbit Posted October 6, 2015 Share Posted October 6, 2015 I Still have one of the old T max double pumpers - 11 years old now. I keep threatening to replace the hose but it's lasted. It's been all over the place. Great bit of kit... Quote Link to comment Share on other sites More sharing options...
strat Posted October 27, 2016 Share Posted October 27, 2016 Hi all, I know this might possibly be a dead topic but, I have just bought a Tmax for my Discovery2 and have 99% of what I need to do a nice (hopefully) permanent install with receiver etc. If anyone did take pity on me, would it be possible for a quick description on how to 'bypass the Tmax on/off switch and wire the relay switching circuit through the pressure switch'. as described by 'Lewis'. Do I take the Tmax to bits?...is 'bypass; a metaphor!?....I don't know. I know its a long shot but I would be so so grateful for this information, I love everything about this type of install, and feel dumb as a bunch of rocks for asking for what I'm sure is going to be an obvious answer. Thanks Guys. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted October 27, 2016 Share Posted October 27, 2016 Unscrew the end if it, the wiring in there should very self explanatory then, just series the in off switch with the pressure switch. Quote Link to comment Share on other sites More sharing options...
Exmoor Beast Posted October 28, 2016 Share Posted October 28, 2016 One bit of T-Max advice. Don't lend it to anyone ;-) Will (once owner of w T-Max compressor) Quote Link to comment Share on other sites More sharing options...
honitonhobbit Posted October 31, 2016 Share Posted October 31, 2016 No one owned up yet then Will Quote Link to comment Share on other sites More sharing options...
strat Posted November 9, 2016 Share Posted November 9, 2016 Many thanks Bowie, sorry about the late reply, don't know where time goes anymore. Hopefully getting everything sorted for the install. Don't suppose anyone knows what the size and type thread for the top of a UK butane cylinder/bottle (ie, Tap to Bottle) is do they?, its a taper thread I've got that far.Had this really clever (F@*%ing stupid actually) idea to use a butane bottle 4.5kg size as a receiver, as its a really nice little shape etc. Problem is I have now tried 3 (don't ask) different sized reducers, 3/4'', 1/2'' and 3/8'' bspt, and STILL no luck. I will be honest I would give in, But it just niggles to do so. Tried the internet and phoning about, but no joy with internet, and no one in shops etc wants to commit to help, safety issues or doesn't know. I have got a nice shiny Tmax comp though,and have inflated 'A' tyre, sitting in the study, stinking the house up to be honest, smells like bush fire. Anyway, thanks again for all replies. Quote Link to comment Share on other sites More sharing options...
strat Posted November 9, 2016 Share Posted November 9, 2016 Just to ask another question, would anyone have any pics of how they set up their gas bottle/ fire ex as an air receiver that they wouldn't mind posting, just to give me some ideas for the gauges etc. It would be appreciated just for ideas of what 'can' be done. Thanks again Guys. Quote Link to comment Share on other sites More sharing options...
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