Backhoe bh75 dipper rod bent

wdchyd · Apr 6, 2012

Bigballer,

That rod shouldn't be anymore than $150 to 200 to make if you have an independent hyd shop make it.....easy to repack yourself

It may be 30mm (or close) chrome stock....I'd bet it will straighten fine..

Here's a video of me making one for a TBN member here.... 3 Minute Hydraulic Rod - Tractor Videos - Kubota, John Deere, New Holland and More

bigballer · Apr 6, 2012

wdchyd said:
Bigballer,

That rod shouldn't be anymore than $150 to 200 to make if you have an independent hyd shop make it.....easy to repack yourself

It may be 30mm (or close) chrome stock....I'd bet it will straighten fine..

Here's a video of me making one for a TBN member here.... 3 Minute Hydraulic Rod - Tractor Videos - Kubota, John Deere, New Holland and More

i'll call around and see what i can find. the prices i quoted were from the dealer so yes, i'm sure they mark it up quite a bit..

nice video btw, what would you charge for one of these?

Ductape · Apr 7, 2012

Bill, that vid won't go past the 1:42 mark for me. Maybe it's on my end?

Impressive machine.

crazyal · Apr 7, 2012

Unless you don't want to learn how to do it I would rebuild it yourself. Sooner or later you'll have other seals fail and once you do the first one the rest are much easier. There's a local guy around here who straightens them and can cut the eye off and weld a new rod on it to repair them. Finding his name was difficult and I ended up finding a used cylinder for the same price.

wdchyd · Apr 7, 2012

bigballer said:
i'll call around and see what i can find. the prices i quoted were from the dealer so yes, i'm sure they mark it up quite a bit..

nice video btw, what would you charge for one of these?

Yours will be metric stock so that ups the price (for material) a little but that basic rod would be approx $150.

The chrome plated stock is expensive but I buy it in 24' lengths and cut the eye off like Crazyal said.....

I stock inch sizes .500 up to 4.000 and metric sizes from 20mm to 100mm

Any machinist can do this job but many cannot do it any quicker or as nice a machine job as the CNC lathe....

wdchyd · Apr 7, 2012

Ductape said:
Bill, that vid won't go past the 1:42 mark for me. Maybe it's on my end?

Impressive machine.

The vid works on my end......What's really nice with the machine is the touch-screen and the repeatability......if I wanted to make 20 parts they'd be all the same

I can program, verify (the simulation to make sure I didn't screw-up the program) and run......then go make a cup of tea and done.....

Deano · Apr 7, 2012

Awesome video! Amazing how the threads are cut. I wanted to see that part thinking the machine would slow WAY down and cut the thraeds all at once in one pass. Neat how it makes continuous passes at high speed.:thumbsup:

wdchyd · Apr 7, 2012

Deano, other people here that run CNC's can attest to it but that machine is capable of running even faster.....I chose to keep it under 1000 rpm's but it will go to 2000 rpm's when cranking.....the computer speeds it up while cutting as the dia gets smaller to keep the SFM (surface feet per minute) the same when cutting.......it will take off the threads all in one pass but I prefer multiple passes for better carbide life..

Compared to doing it manual it's incredibly fast

kcender · Apr 9, 2012

After reading this post,I started thinking I should fix the bucket cylinder on my BH90 backhoe.It is bent also and has been for some time,probably close to a year and a half.It worked fine and didn't leak so I never bothered with it.The bend is opposite to the OP's but about the same deflection judging by the photos.I called the dealer to get some prices but he said it would be much cheaper to go to a hydraulic shop.Kubota wanted 700 dollars for the rod and 130 dollars for the packing kit.I took the cylinder off myself and disassembled it.This is the first time I have ever done this but it wasn't too difficult.I took the rod,gland,and cap to two different hydraulic shops for their opinion.Both said the gland was fine but needed new seals and O-rings.These were 10 dollars.The rest of the seals were as good as new and didn't need replacing.They said to make a new rod would be around 300 dollars but I got them to sell me a piece of 40 mm stock for 60 dollars.I can get the machining done at work on a CNC machine.I will weld the eye on myself as I am a welder by trade.With a jug of UDT fluid to top up what was lost,the total cost should be around 100 dollars which is pretty cheap.I chalk the whole thing up to a learning experience.As to how the rod got bent I am not positive but I think it happened when I was pulling a tree with a chain hooked to the BH bucket.The tree fetched up on a stump and I think this is how it happened.At the time I didn't realize this was a no-no but now I see it is,another lesson learned.