Fitting a hydraulic thumb using an electronic diverter valve

[V8Druid]

And the number never repeats it’s self

absolutely correct Paul and continues to infinity ...... apparently the longest calc. so far is two quadrillion places ... but it's an inifinite number, so will never be fully calc.ed to a conclusion ...... 's a bloody handy number though

 

[Monkeybusiness]

haha probably poor thing. Any idea how i tell what the ram is actually rated for? I just sort of stole it off a front linkage that had been sat in the barn for years and put it on the rear... Several years ago now, had no issues with it so far. Just sort of thought 'looks big enough'.

If you pick something heavy up can you lift the front wheels off the ground? If so, it is probably strong enough...

 

[TiltyShaun]

And the number never repeats it’s self

Or ends!! 22/7

 

[honey_badger]

Probably a bit bigger but it was a ram I had laying about that looked right
And my pal who’s machine it’s on fair gives it some that’s why it’s got the thicker pieces welded on the tips..........as he bent the ends

OK well its good to know that I don't have to worry too much about getting a smaller ram - so long as I beef up the thumb and the pin mounts for the ram for the thumb and possibly even the ram on the dipper too...

 

[honey_badger]

it's rating can be calculated ..... piston area x pressure available = capacity as a straight push ... for a pull, subtract the area of the rod diameter from the piston area, for usable piston area ...
(pi) 3.142 x radius squared ... eg. 50mm cylinder would be 25 x 25 x 3.142 x pressure (say 200 bar) = circa 4t push

Right ok thank you, dragging me back to gcse maths hahaha.
presumably it'd take an immense amount of pressure to pull the ram outwards past that check valve though?

 

[honey_badger]

If you pick something heavy up can you lift the front wheels off the ground? If so, it is probably strong enough...

Certainly can, with the front loader off and no front weights on she picks up our wood chipper and the front becomes extremely light.... Never got them totally off the ground mind... It doesn't seem to complain tilting the chipper either.

 

[honey_badger]

Probably going off topic in the thread but how do people stop the teeth on their buckets from becoming loose and wobbly? The bolt through holes in the bucket ones not the slot over tooth mounts ones? is either type superior to the other? ie should I change how they're mounted if I replace the worn cutting edge on the bucket? and hardox or similar for the cutting edge presumably?

 

[V8Druid]

Right ok thank you, dragging me back to gcse maths hahaha.
presumably it'd take an immense amount of pressure to pull the ram outwards past that check valve though?

the check valve in theory should never be able to let go ..... summat else'd have to give... check valves are best mounted, either direct to a cylinder port, or via steel tube to the port which you want to check .... not a flexi rubber, which can burst

 

[honey_badger]

the check valve in theory should never be able to let go ..... summat else'd have to give... check valves are best mounted, either direct to a cylinder port, or via steel tube to the port which you want to check .... not a flexi rubber, which can burst

yes is mounted via steel tubing which is in good nic

 

[V8Druid]

... or via steel tube to the port which you want to check .... not a flexi rubber, which can burst

yes is mounted via steel tubing which is in good nic

I meant the service that you need to check with the valve ....... but it's a good idea to make sure the plumbing is in good nick too

 

[honey_badger]

I meant the service that you need to check with the valve ....... but it's a good idea to make sure the plumbing is in good nick too

Obvious now i read it...