WTF is Power beyond?

pudding

Member
Location
nz
yale, it is on the P version

deutz have a couple variations, it is a little confusing if you don't know what you are looking at,

the M and K series had 3 levels of spec, all different hyd.......and it looks like the 6 series have 3 levels too, but it usually comes down to the country you are in and what the importer thinks the market wants (this is why someone will always call me out and say i am wrong here lol)

the system drdunc described actually works well......you will realise this when you have to fix or replace a load sense pump that stays on high standby on other brands :) it does have down falls, it looks like a lot of pumps and it is, is confusing to people who don't know, often its a lot hanging off an accessory drive of a engine etc looks like a lot of pipes....and it is.....but it works, works well really well when serviced by the book etc, and every thing goes well
 

DrDunc

Member
Livestock Farmer
Location
Dunsyre
yale, it is on the P version

deutz have a couple variations, it is a little confusing if you don't know what you are looking at,

the M and K series had 3 levels of spec, all different hyd.......and it looks like the 6 series have 3 levels too, but it usually comes down to the country you are in and what the importer thinks the market wants (this is why someone will always call me out and say i am wrong here lol)

the system drdunc described actually works well......you will realise this when you have to fix or replace a load sense pump that stays on high standby on other brands :) it does have down falls, it looks like a lot of pumps and it is, is confusing to people who don't know, often its a lot hanging off an accessory drive of a engine etc looks like a lot of pipes....and it is.....but it works, works well really well when serviced by the book etc, and every thing goes well

Deutz have moved the pumps on the six series from being driven by the engine crank, to now being located under the cab driven off the gearbox. This hides the three gear pumps and the rats tails knot of pipework. The down side to this better positioning is that it makes it harder for curious owners to figure out the plumbing :D
 

Cowabunga

Member
Location
Ceredigion,Wales
The plumbing on this kind of setup is indeed rather messy. MF had two or three pumps on one side of the transmission and another on the other side on that 2004 to 2006 optional system. It worked well enough, although gear pumps tend to be fairly noisy compared to swash-plate pumps. It may still be an option in some markets but not in the UK as far as I know.

Newer smaller MF have the option of two gear pumps for the rear hydraulics. The main advantage to this open-centre system is that as standard, one pump works the links and the other works the spools. On the basic one-pump version, as fitted from the 3000 series up 'till today, if the spool valve takes most of the oil, there is nothing left for the links. The double pump open-centre set-up is actually user selectable in that instead of a priority valve there is a combining valve actuated by the driver pressing a blue rocker switch. This combines the flow of the two pumps, locking the links out of action while sending 100litres per minute to the spool circuit.

No doubt all kinds of permutations are possible to the imaginative designer.
 
Power Beyond is just a fancy name for a group of three dedicated coupling for implements that are to be used with remote spool valves or remote controlled flow of oil when both tractor and implement are equipped for use with Closed Centre, Load Sensing [CCLS] hydraulics. The two big couplings are self explanatory, one being the main flow and the other being a free-flow return to tank or sump. The third line, the smaller of the three, is the control or sensing line. All this does is convey a message through pressure and flow, so as to control the tractor pump. The tractor has a variable displacement, swash-plate, type pump where the full flow can be achieved at nearly idle speed if the control plate is commanded to do so by the sensing line. Or it can pump no oil, or any amount of oil that is needed, at any revs including flat out.

Open centre systems with fixed displacement pumps, on the other hand, displace [pump] a fixed volume of oil for every revolution of the pump, regardless of need. It follows therefore that full volume of oil pumped can only be achieved at full throttle, so that only half the volume of oil is pumped at 1000 engine revs as at 2000 engine revs.

I know the question was only about 'power-beyond' but I feel it is important to know how these systems work and the differences between them, in order to understand anything at all about them.
Proper Power Beyond systems will also have a motor bleed line to allow any hydraulic fans or motors to run down when the system is switched off
 

Gerbert

Member
Location
Dutch biblebelt
On JD 30 series it's pretty straightforward to plumb it in (if not ordered with it from factory), probably on other makes also. Took a man in a van and 800€ worth of parts and labour (including the drive time).
In 6000, 6010 and part of the 6020series it's just a matter of putting a fitting in (although it is a metric fitting which not every shop has lying around)., Halfway the 20 series on you needed a special slice which rendered a 4th spool impossible.
How it is done now I don't know, but beginning in '92, for a long time they did it right, then they lost the plot...
 

Farmer Roy

Member
Arable Farmer
Location
NSW, Newstralya
Nothing new about power beyond.
We were running 8 metre linkage gear on furrow irrigation country 30 years ago, set up with Orthman “trackers”, guidance systems that ran off the furrow or plant row, with 2 big steering discs out the back, that were powered by power beyond hydraulics on 7140 Magnum tractors
 

Cowabunga

Member
Location
Ceredigion,Wales
Nothing new about power beyond.
We were running 8 metre linkage gear on furrow irrigation country 30 years ago, set up with Orthman “trackers”, guidance systems that ran off the furrow or plant row, with 2 big steering discs out the back, that were powered by power beyond hydraulics on 7140 Magnum tractors
Its just a fancy name for running remote spools. In this case for closed centre systems that require a third signal line.
 

Cowabunga

Member
Location
Ceredigion,Wales
So i have power beyond on the tractor
connect the pressure Ona return and the controll line

what do I need on the implement.

Drill with hydraulic fan

fert spreader with hydraulic drive

loader
A means to accept those lines and to control the oil flow at the implement end. Basically a spool or number of closed centre load sensing valves. Motor spool in the case of motors. Loader needs the usual ccls spool valve in one casting. It can be controlled by either traditional cables or some more advanced servos, either electronic or oil over oil. Up to you how much you are willing to spend.
 

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