New owner and first back hoe. Made a very rookie mistake. Pulling some old stumps out, first 2 very close no prib. Last 1 was a reach, extendahoe all the way out pulled stump and damaged ram. Is it real hard to remove. Looks a pain in the ***.
First time extendahoe removal can be a bit of a task. How do you know if ram is damaged if you can't see it? Maybe a blown hose or cylinder seals? A make & model of your machine will get you the more precise help.
when using the machine to pull stumps, I always used to put on a narrow bucket and give the roots a good ripping before removing the stump. If you cannot do that, I always used to lock the extendahoe before any serious pulling
Sorry , Mid 70 case 580c ,Buddy knows alittle bout them he caped off lines to cyl. and tryed pushing on extendahoe lever and it bogged down so valve is good, he said real common for some nut on cyl, to come off and letting fluid by-pass
The only nut I know of, on the inside of a cylinder, would be to hold the piston to the rod. If that came off the extendahoe would drift uncontrolably (at least in one direction). What has happened that has you thinking it's damaged(describe symptoms please)? IMO R&R of the extension cylinder is easier if you have another machine (or something else to do some hoisting).
Extendahoe would not go in at all. With hoses disconnected we were able to get it back in with the weight of the machine. caped off lines and tryed to operate extend and the motor would bog down like it was trying to push fluid. So that says the valve is working. Hooked hoses back up and nothing. Motor slowed very little so were guessing fluid is by passing through cylinder?Had to chain hoe up or it will just slowly go back out on its own.
The fact that it's going slowly indicates, to me anyway, that the nut is still attached. I think you have a blown seal at the piston because it is drifting slowly in both directions.
Buddy said depending on what is wrong with cylinder to repair it could be any where from 300 to 1200 to fix. Either way total cost to fix would be defently less than$1500 inclucing R&R . Sound fair?
In answer to your opening question: IIRC, yeah, it's kinda labor intensive. You need to drop the whole slide assembly off/out of the dipper. (Somebody correct me if I'm wrong. It's been a long time since my 580C went away.)
Basic instructions - I do this with the extendahoe fully retracted to save any damage to the cyl rod Set the dipper/extenda on a large log/ a pile of dirt/ rear tray of a truck (tip- chain it to the body) so that it can fully support it.- I usually leave the bucket on Use some timber blocks to support the bucket cylinder undo & cap the bucket cyl hoses - if you don't do this the hoe will flop all over the place & you will be drenched in oil = UNSAFE! remove the marked pin be certain all hoses etc are clear of extendahoe by driving the machine fwd & manouvering the BH boom & dipper, drop the extendahoe off the BH remove the extendahoe hoses & cap them - tie a small rope to the end of the hoses this will feed it through the dipper for you - it will be required to reinstall the cylinder remove the rear mounting pin for the extendahoe cyl & remove there is a youtube video out there showing this job on a 580K - similar set up. I recall they use another machine to do the removal.
Thanks for all the quick replys, this is a very awesome site. Looking foward to learning more and stealing some really great ideas i have seen here.
This is my second post as I'm doing my research prior to a purchase and again, I've learned something new in the first topic I've read today. These things are not indestructible. And repairs can be expensive. The last item is the one thing that worries me about buying a hoe. I'm not afraid to take on any repair, I just worry that with heavy equipment, I may simply not have the capability to handle the required repair. What I am learning is to start with a good solid purchase. r
Just a update, a buddy and his dad are comeing sun. to remove cyl. And all it will cost me is a 12 pack of DR. Pepper and pot of coffe! Pay backs can be nice, I've helped them both out in the past.
Well, how did it go??
Heavy rains all day, nothing got done. They mite make it out here today.
Buddys showed up at 4:30, Cyl. in the back of my truck at 5:00. Not there first time. All hand tools. Off to rebuild in morn.
Looks like rod came unscrewed, no thread damage that we can see, gettin full rebuild anyway, dont want future probs.
Well, pulled it out mon. Had it out in bout half hour, maint. helps no fighting with pins. Took in in tues. Got it back this morn. (wed.) And of corse heavy rains all day. I should of built a bigger garage. Or a pole building! $200 total cyl rebuild. Bolt backed off rod very little thread damage, now lock tighted!
Thanks for the updates - glad to hear your back in business at a reasonable cost.
I got a good deal on a terex tx 760 2003 backhoe only 800 hrs buy has standard backhoe no ex - hoe what would be the cheapest way to put ex-hoe on it and about how much would it cost thanks
There is no 'cheap' way to do such a thing. Ideally, you need to find same machine that is being wrecked & fit all the components over - including valving / plumbing / & controls. Good Luck in the search
Terex 2003 760 also this machine has 4x4 controls is in the control panel on the right with all the bottons and switchs it is not on the panel on the upper left above the stearing wheel . I have never seen this before does anyone know why this is and how can you check if the 4x4 works without being in the dirt and what and how to look for problems in the 4x4 front end and trans . Also the little pedel on the left by the brake pedels i was told this is to lock the rearend how can you tell if this works because on mine it feels like it is not even connected and thanks so much for the last anserw
Terex 760 backhoes i seen a listing online for a 4x2 only 2 wheel drive on 2003 760 terex i thought that they all only come with 4x4 drive and the controls were by the stering wheel an it was 2 wheel rear only 2 wheel front only and 4x4 both front and rear on . And also thought they all came with extenda hoe only as well does anyone know anything about this
To check if front axle is engaging. Raise the rear wheels off the ground & then raise the front wheels so they are gently touching the ground. Test 2WD & then engage 4WD - it will be obvious. To look for problems in the axle & transmission, is something most owners don't want to do ..... Stall testing the transmission usually tells all - I don't know what the specs are for your model, maybe someone else will help. Draining the oil (all oils) is a good thing to do when you buy a used machine - this may show any problems also. Machines are usually configered in many different ways from factory. 4WD + extendahoe is common - But 2WD & std dipper are still available.
does anyone know where i can buy a complete ex hoe for the terex tx 760 b used off a parts machine and the complete front window / cab also will the exhoe assembley from a jdeere 310 fit the terex 760 . are the pins same dia and distance etc and one last thing where can i get a new soft cab vinyl for the terex tx 760b