Handy Don 12,436 #26 Posted November 4 15 hours ago, WheelHorseVH said: @Handy Don for the lines, standard brake line size will do? And for the fittings, what should I buy? I can do single and double flares on brake line, will either of those be compatible with the fitting? Thank you, your hydraulics posts are incredibly informative. I used the new nickel-copper alloy brake lines instead of steel because rust gives me a rash . The extra few bucks was worth it to me and I got easier bends/flares, as well. I used standard single 37º flares and fittings. No need to get extra fancy. Definitely practice flaring before doing your “for real” parts in the alloy. I found I needed a bit more tubing extending out of the flaring clamp to get the best flare length. Also, with the alloy, do NOT expect to get as many loosen/tighten cycles at the flare fittings as you might with steel--the material is softer and forms readily to the fittings. I went a bit less tight on them until running the complete system and then tightened where I found leaks until they stopped! Lastly, alloy is VERY unhappy with vibration and will crack at the fittings if allowed to “buzz”. Tractors shake a lot. Be sure you have the tubing fully clamped down. I used the metal clamps with shaped plastic inserts at no more than 10” intervals. Share this post Link to post Share on other sites
WheelHorseVH 104 #27 Posted November 5 8 hours ago, Handy Don said: used standard single 37º flares and fittings To continue my theme of dumb questions…when it comes to fittings, what exactly should I buy? They would need to fit the standard flared brake line to the WH spool valve and the WH lift cylinder. Share this post Link to post Share on other sites
Handy Don 12,436 #28 Posted November 5 (edited) 14 hours ago, WheelHorseVH said: To continue my theme of dumb questions…when it comes to fittings, what exactly should I buy? They would need to fit the standard flared brake line to the WH spool valve and the WH lift cylinder. This one opens the door to a LOT of options! I (over)spent a lot of time poring over websites and compiling lists based on different configurations of tubing routing. I also have a box of unused fittings from some of my “tried and it didn’t work” ideas. This chart helped me understand the different kinds of connections. JIC flare, NPT, O-Ring Boss (ORB), and O-Ring Face (ORF) are the most common moderate pressure fittings. The control valve I used required ORB terminations, as did the WH cylinder. The pressure relief used NPT. I used forged steel JIC 37º flare for the ⅜" tubing connections (note the stronger JIC fittings require two parts--a sleeve and a collar nut). I used flexible hose solely to connect to the cylinders, since they would have movement. This chart was essential for helping me spec out my shopping list for the JIC-to-JIC connections as well as for JIC-to-ORB and JIC-to-NPT component connections (pump, control and pressure relief valves, quick-connects, and filter/tank). I looked at getting custom hoses to the cylinders with the exact end fittings I wanted, but in the end using “stock” hoses and a couple of adaptor couplings was cheaper and more flexible. Note that nearly all manufactures will cross-reference their most commonly used fittings to the numbers in this chart, though some “extend” this numbering to identify unique fittings. Note the nomenclature in this example: 6600-06-06-06-FG : OneHydraulics Tee, 0.375 (3/8) Male JIC x 0.375 (3/8) Male JIC x 0.375 (3/8) Female JIC Swivel, Steel, 5000psi OneHydraulics is the manufacturer 6600 defines a Tee with male JICs on the “through” ends and a female JIC swivel on the “leg” end -06-06-06 defines the dimensions of the corresponding “through” ends and the leg in 1/16s of an inch -- 6/16ths = ⅜” FG means it is forged steel (vs. SS for stainless or B for brass) Here are links to three vendors I used, though I can no longer remember what came from where. https://www.hydraulichoses.com https://www.hydraulicsdirect.com/default.asp https://brennaninc.com I also used https://www.surpluscenter.com for some good deals on stock hoses, anti-friction sheathing, and quick connect dust plugs Edited November 5 by Handy Don 1 Share this post Link to post Share on other sites
WheelHorseVH 104 #29 Posted November 6 Wow. I am going to go read and digest all of this and then come back. Once again thank you! Share this post Link to post Share on other sites
peter lena 8,716 #30 Posted November 6 @WheelHorseVH agree with @Handy Don on the multiple view look / ideas , never look at a problem with a singular fix , take advantage of where you are in the fix it stage . tube routing , connections , etc . have often eliminated a chronic issue , pete Share this post Link to post Share on other sites
Handy Don 12,436 #31 Posted November 7 22 hours ago, WheelHorseVH said: Wow. I am going to go read and digest all of this and then come back. Once again thank you! Glad to help. BTW, please don’t let the breadth and depth of those reference charts overwhelm you. I’d focus on the ORB, JIC, and NPTs since you won’t see ANY of those other types of connection on a WH! I happen to geek out on well structured and informative charts and tables but they surely are not everyone's forte. 🤣 Share this post Link to post Share on other sites
