HD6E Track adjuster stripped - Help

that yoke would be pretty easy to come by from a salvage machine.  general gear in Idaho www.tractorparts.com has a good selection but there is likely something closer to you.  hopefully someone else will chime in.

You could just use on more nut on the adjusting screw and adjusted the trak with the first nut and lock the second one on the first nut ,some guys do that

gemdozer wrote: You could just use on more nut on the adjusting screw and adjusted the trak with the first nut and lock the second one on the first nut ,some guys do that

Good suggestions everyone.

As long as that lock plate is there and is threaded yet - a single nut is all that is needed and use the plate as the locknut - just use longer bolt to attach to the yoke . 
 On a HD5B I had I turned a new threaded shaft for the yoke and then used a piece of square tube to make up the section to use adjusting wrench on - welded threaded to square tube and done 

Morten and others have done the marrying of a hydraulic ram (Port-a-power type or other) to the yoke so that is very doable. You say jack do you mean the pump section? I would want to stay with a grease fill/adjust. Using oil can add to leaks. I don't think tying it to the crawler hydraulics would lead to anything good. My thought is if you needed to add oil often enough you just want to turn a valve you must have other troubles, i.e. the ram leaks the oil out or the hose to it got ripped off. JMHO.

Jim.ME wrote: Morten and others have done the marrying of a hydraulic ram (Port-a-power type or other) to the yoke so that is very doable. You say jack do you mean the pump section? I would want to stay with a grease fill/adjust. Using oil can add to leaks. I don't think tying it to the crawler hydraulics would lead to anything good. My thought is if you needed to add oil often enough you just want to turn a valve you must have other troubles, i.e. the ram leaks the oil out or the hose to it got ripped off. JMHO.

Good points Jim. Yes I was referring to the ram off a porta power or hydraulic jack in the 30 ton range. You could tap it for grease fitting and like on my 16, use a grease gun to pump up pressure. If I did that, I would use the type of grease fitting used on the old JD 450 dozers. It used a specific fitting that had a mate on the end of the grease gun. Kind of a flat pancake type of a head. Grease gun held on better and would not fall off.

You can google this if you want to confirm, I might be wrong. Grease fittings have a pressure rating of what they will hold as a "check valve". Some relieve and hold no pressure, others will be various pressures to 10,000 psi and maybe beyond. While they may work, many are not rated for the pressure an adjuster may see on impact. This is true for the common zerks. I believe the button heads, I think you are talking about, are low pressure. Their primary use was on track rolls, idlers and other applications where a volume gun/bucket could be used. There might be some that are high pressure rated but it would need to be researched.

Thats true Jim. Zerks on pressure track adjusters have tapered seats on them screwing into mating tapered seats in the cylinders like SAE and JIC seats on hydraulic hose fittings. The thread has a channel to release pressure by unscrewing just enough to unseat the seal, and keeping the zerk most of the way into the thread. Similar to  brake cylinder bleed points.


Edited by Mactractor - 03 Jul 2019 at 4:18pm