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Wardner

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Forgot it was on there today as I moved the tractor around a bit at slow speed. It's an oxygen bottle safety cap.

Anyway, it looks like I am all set for apple picking time. The floor of the basket is twelve feet up. That gives me a working height of 16 feet. I am using the electric hydraulic power-pac that came with the stacker. It goes up and down from the basket or tractor seat. Tractor engine doesn't need to be running. I am currently using a deep cycle battery. Basket is from a 275 gallon polyethylene tote.

I discovered that I will need an equal volume flow divider for the front fast hitch cylinders. The mast likes to lean to the side on uneven ground. Oil is flowing back and forth from each cylinder to the other. Maybe somebody has a better idea.
 
good looking rain cap, hate to get konked in the head with it if the ole girl backfires tho!!!! handy rig for apple picking!!! i picked about 3 bushels of golden delicious yesterday, and a bushel of pears. the jonathan and mac's arent quite ready yet, still pretty tough and real tart!!
 
(quoted from post at 14:37:31 09/14/09)
I discovered that I will need an equal volume flow divider for the front fast hitch cylinders. The mast likes to lean to the side on uneven ground. Oil is flowing back and forth from each cylinder to the other. Maybe somebody has a better idea.
Click to expand...
We used to make a check valve block that needed a pilot pressure to unseat. This helped lock a cylinder in place until the check was unseated by pressure in the internal pilot line. Have no idea where you could find one now, but they are out there somewhere.
Also used to buy them (after our valve division was moved) from a hydraulic component supplier. They were in a small anodized block, but been retired long enough that I don't remember the company.... maybe Fluid Components or something like that.
 
What you need is a DPOCV "Double Pilot Operated Check Valve". You wold need one on each cylinder, I think. This locks the cylinder while the control handle is in neutral and cannot operate with the engine off (cannot let it down while not running). Most newer equipment is using this standard, especially heavy equipment. My HTL "hydraulic top link" has one and it keeps the cylinder set even it the valve leaks by. There is a surplus company I get catalogs from that carries that kind of stuff, but cannot remember the name. I'll post it if I remember.

Not to mention, nice rig! I am kinda jeleous! I do agree with the forgetting to remove the cap and getting a headache.

CT
 
(quoted from post at 17:15:33 09/14/09) There is a surplus company I get catalogs from that carries that kind of stuff, but cannot remember the name. I'll post it if I remember.

CT
Click to expand...
Northern Hydraulics?
 
Link the left and right bell cranks together with an adjusting system to force them to stay level, but allow tilting on demand. (needed for plowing in reverse anyway) Jim
 
I have their catalog. They have lock valves from
Parker and Prince. Cost is between $95 and $105
each. It will be alot more when I get through
with fittings and hoses.

I didn't think I was going to need anymore
hydraulics as the pivots on the arms are connected
with a keyed torsion bar running underneath the
bolster. The fast hitch has performed well with
low hanging loads.

As for the rain cap, that tractor rarely ever gets
wet and there is no need for a cap. But the cap
was handy the other day and it fit. It works
quite well. It is tall enough so that it doesn't
block the exhaust and the two slits along the
sides let the exhaust out.
 
Ya Jim, I did that when I built the fast hitch. I am using 1.5" drill steel keyed on both ends with 3/8" square keys. That mast, when extended and carrying a load, is too big a lever. I have bigger drill steel but there is not room between the bolster and steering arm. In fact, even now I have a 3.8" spacer separating the bolsters and the steering arm from the steering shaft to accommodate the torsion bar.

So I can add more hydraulics or make a swinging landing gear to steady the mast when it is elevated.
 
you need to read or have read "go dog, go" before you read my response.

no i do not like your rain cap!
goodbye.

karl f
(make a super ridiculous one and i'll like it :D )
 
It just occurred to me that there is one more thing I can try. On the 400 hitch, there are a pair of ball joint linkages that have provisions for pinning them solid to a sector that holds up the wishbone. I haven't installed those pins yet.
 
This is the answer. Well thought.
A pair of globe (1/4turn) pressure rated valves, one on each of the extend hoses on the cylinders, would lock the cylinder from passing fluid from side to side. They would be opened to adjust the platform angle, then shut to hold. This would test the theory and if good, a planned purchase of the pilot operated checks could begin. JimN
 
Very Good JaNichloson. That would definatly prove if a DPOCV would work in this application. There is so much weight and leverage involved with the mast, basket, and rider that something must be done to ensure the mast doesn't lay down.

CT
 
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