Massey F 35X hydraulic flow rate

[arboriculturist]

Thanks for the link

[arboriculturist]

Not really, i actually have a lot of second hand massey bits floating about. Presuming that your 35x isnt already a multi power gearbox.

 

What is involved in retrofitting the exchange parts?

[mendiplogs]

What is involved in retrofitting the exchange parts?

 

HI ARB or a pto pump will do it mate or buy a splitter with a pto pump thanks jon

[Agi-Smash]

Drain back end oil, insert splitting rails, split tractor between gearbox and back end, remove left hand cover, maybe machine torsion tube, fit sandwich plate drive, pump, lift pipe, output pipes etc, put tractor back together, i fitted a double acting spool and quick releases on diff housing just below left bum cheek. Fill with oil, pressure and flow check.

Sit back and enjoy extra flow.

No extra tanks, no pto shafts to bugger around with, all enclosed, proper job.

[openspaceman]

Thanks for crunching the numbers. Sounds like a dedicated external pump may be most cost affective and with variable flow control can run a range of splitters which we have.

 

With gear pumps the only variable flow control is engine speed or diverting them with a tap. Swash plate pumps with constant power control are very expensive, used on forwarders and such with closed centre valves and load snsing. The best you can get with open centre and a single gear pump is stepped speed And/Or force control, this can happen automagically with the right valves. Avoid flow splitters as they dump excess at the pressure of the service in use, this wastes power and heats the oil. You need to keep oil temperature below blood heat for longevity.

[Agi-Smash]

Below blood heat? Really? What oil are you using? I use several bosch rexroth 45-85cc ls pumps and 33cc gear pump sets and rexroth say iso hv vg 46 hydraulic oil is alright up to 70 degrees c above ambient.

[TimberCutterDartmoor]

pto pump, no messing about.

[arboriculturist]

With gear pumps the only variable flow control is engine speed or diverting them with a tap. Swash plate pumps with constant power control are very expensive, used on forwarders and such with closed centre valves and load snsing. The best you can get with open centre and a single gear pump is stepped speed And/Or force control, this can happen automagically with the right valves. Avoid flow splitters as they dump excess at the pressure of the service in use, this wastes power and heats the oil. You need to keep oil temperature below blood heat for longevity.

 

Thanks for the advice.

 

The longer you live the sooner you realise that it pays to go to an expert. I shall look of the option of a multipower pump but most likely go to a specialist Hydraulic company who is able to guarantee everything matches and I end up with a robust system which will give longevity. Need to have pto speed constant at 480rpm as I plan to run processor in tandem off same tractor. Going to be interesting what the Hyd company advise for controlling the flow rate to the splitter. Will post their reply after I phone tomorrow.

[mendiplogs]

pto pump, no messing about.

 

HI JOHN it a better way to go mate on old tractor like this i think PTO PUMP on a splitter thanks jon

[arboriculturist]

pto pump, no messing about.

 

Pto pump gives a seperate auxillary circuit and with a male output shaft can run a processor in tandem, but need to hear from the Hyd. guy how the flow rate to the splitter can be varied without issue.

 

Probably a case of - get what you pay for, so looks like all Hyd kit from Italy - can't go wrong then.

 

Lots of conflicting views on the forum, which is understandable.

 

Get there eventually!