Doug G. Posted February 21, 2013 Report Share Posted February 21, 2013 Hi all, I just recieved an order from CPS. They had a small bottle of what was calld "Brake Fluid" on-line. When it arrived it turns out it is Dexron III automatic transmission fluid - the invoice says "brake fluid - ATF." The color is right, but is this the right stuff for a CTLS? Link to comment Share on other sites More sharing options...
Tom Baker Posted February 21, 2013 Report Share Posted February 21, 2013 While it might work it is not what the MM calls for. It calls for Aeroshell fluid 41 or MIL-H-5606. Link to comment Share on other sites More sharing options...
Doug G. Posted February 22, 2013 Author Report Share Posted February 22, 2013 Yeah, I was going to purchase the Aeroshell from Aircraft Spruce, but was putting in an order with CPS. I can't believe they would repackage Dexron and claim it is brake fluid. Not worth sending back - I guess orders from them have to be phone orders. Link to comment Share on other sites More sharing options...
Roger Lee Posted February 22, 2013 Report Share Posted February 22, 2013 I went to CPS and looked. It does say ATF brake fluid. Aircraft Spruce sells 5606. I just got a Qt. from Spruce and it says it is 5606 and was $9.85. For us I think I would buy our 5606 brake fluid from Spruce and not CPS. Matco recomends 5606 and absolutely do not use any of the DOT fluids or it will eat your "O" rings and make them leak and some of the white plastic lines on the earlier CT modles may spring a leak. Will the other ATF fluid work, probably, but I couldn't swear by it. A call to Matco would be in oder to get the best answer. Link to comment Share on other sites More sharing options...
Doug G. Posted February 22, 2013 Author Report Share Posted February 22, 2013 Yeah, so who ever heard of ATF brake fluid?? I would never use it in a car, why would I use it in my plane? Sparse descriptions on their site. Link to comment Share on other sites More sharing options...
Doug G. Posted February 22, 2013 Author Report Share Posted February 22, 2013 It could have been Alcohol, Tobacco, and Firearms as far as I was concerned! Link to comment Share on other sites More sharing options...
Runtoeat Posted February 22, 2013 Report Share Posted February 22, 2013 I wouldn't use anything other than 5606. Link to comment Share on other sites More sharing options...
Roger Lee Posted February 22, 2013 Report Share Posted February 22, 2013 FYI, Just got off the phone with Matco. Automotive ATF fluid is okay. The only major difference is the high and low temp range, but ATF fluid will not harm the seals. There is an ever so slight difference in the additive package, but nothing that will affect us. The DOT fluids are a definite no no except for DOT 5. Dot 5 can be used and it will not hurt the seals. Link to comment Share on other sites More sharing options...
Doug G. Posted February 22, 2013 Author Report Share Posted February 22, 2013 Thanks Roger for the research. Maybe I will put it on the shelf for an emergency. I'll use the kind called for in the manual. Link to comment Share on other sites More sharing options...
California Power Systems Posted March 7, 2013 Report Share Posted March 7, 2013 CPS supplies ATF hydraulic fluid that is produced by Hegar for Hegar, Black Max and other brake systems requiring ATF fluid. CPS does not repackage Dexco fluids. CPS Customer Service Link to comment Share on other sites More sharing options...
Doug G. Posted March 8, 2013 Author Report Share Posted March 8, 2013 I'll have to take a picture of the bottle next time I get to the hanger. It says Dexron III on a non-corporate label on a cheap plastic bottle. I think it is time for you to check out the warehouse and see what you are actually shipping. Link to comment Share on other sites More sharing options...
Doug G. Posted March 9, 2013 Author Report Share Posted March 9, 2013 This is for CPS customer service-- I have attached a picture of the bottle of "brake fluid" you sent to me. It is still in the sealed bag and, if you wish I can post the bag label also. As you can see it is clearly labeled Dexron III, but given what you are telling me I am not exactly sure what is in the bottle since you "don't repackage" such stuff. I did not appreciate your intimating that I was either lieing or having delusions. I would apreciate an apology and an explanation of how the Dexron label got on the bottle. --Just saying it don't make it so. If this is not clear enough I can send you the unreduced file directly if you give me an address. Link to comment Share on other sites More sharing options...
Roger Lee Posted March 9, 2013 Report Share Posted March 9, 2013 Hi Doug, I sent the picture and a few comments to CPS. Link to comment Share on other sites More sharing options...
Doug G. Posted March 9, 2013 Author Report Share Posted March 9, 2013 Thanks Roger, I had no problem until they made that statement. I just figured I ordered the wrong stuff. Link to comment Share on other sites More sharing options...
California Power Systems Posted March 13, 2013 Report Share Posted March 13, 2013 Thanks to Doug for pointing out that the brake fluid that CPS carries is indeed Dexron III. We do get this fluid from Hegar Products and apparently Hegar pours it down into these smaller bottles. It is our understanding that Dexron III is equivalent to standard automatic transmission fluid (ATF). Sorry for any confusion, and if there are any further concerns about this fluid please let us know. CPS Customer Service Dept. Link to comment Share on other sites More sharing options...
Doug G. Posted March 14, 2013 Author Report Share Posted March 14, 2013 I appreciate the acknowlegement. CPS is back on the good guys list. Link to comment Share on other sites More sharing options...
FastEddieB Posted March 14, 2013 Report Share Posted March 14, 2013 CPS, Way to "man up" and take responsibility. It is our understanding that Dexron III is equivalent to standard automatic transmission fluid (ATF). Good to know. But it would behoove owners to make sure that substituting it for what's called for in their AMM is authorized. Link to comment Share on other sites More sharing options...
cdarza Posted April 30, 2016 Report Share Posted April 30, 2016 What is the material and specs for the brake lining ? Mine are starting to get brittle and actually had them burst (and lost brake during a 5000rpm run up) - Reminder to be careful and reach for the ignition off quickly --- i measured mine and it looks like 4mm - does that sound correct - as CPS has brake line that is 1/8OD 2006 Original Brake Thanks Link to comment Share on other sites More sharing options...
Roger Lee Posted April 30, 2016 Report Share Posted April 30, 2016 The white plastic brake line is 6mm OD x 4mm ID Link to comment Share on other sites More sharing options...
cdarza Posted May 1, 2016 Report Share Posted May 1, 2016 The white plastic brake line is 6mm OD x 4mm High Bursting Pressure 1/4 .150 2500 05-04349 Would this be the one i am looking for ? Link to comment Share on other sites More sharing options...
Roger Lee Posted May 1, 2016 Report Share Posted May 1, 2016 Hi Cdarza, Sorry, I don't know Link to comment Share on other sites More sharing options...
Tom Baker Posted May 1, 2016 Report Share Posted May 1, 2016 I think if it was me I would think about switching to the later style hose with the banjo fittings, at least on the pressure side. Link to comment Share on other sites More sharing options...
cdarza Posted May 4, 2016 Report Share Posted May 4, 2016 From Flight Design re Brake Line: The correct part number is C9993190H Link to comment Share on other sites More sharing options...
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