LT230 PTO Endurance limit?

Had a look at firstfours site and basically could only find product references to hydraulic or electric winches. Link to crank driven would be useful.

The only reference on their site I could find to crank driven (search 'crank') was this '...The hydraulic system is driven direct by a crank-driven pump and has a flow rate of 26 litres per minute to keep the Trydent’s working as they should...'. Under south west challenge.

First Four News

Without further links for clarification how are we defining crank driven? Off the front where the harmonic balancer is for example? Or some mechanical drive off the transfer case input gear dogs (construing this is driven off the crank) - check you have dog teeth on your input gear as later Diso 1's for example were not cut, from my experience. Buy a replacement for about $200 or so.

The literature that came with my maxi-drive pto hydraulic pumps says '...this is a very simple and economic way to provide hydraulic power of up to 20kW (30HP) for any number of purposes...'.

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Originally Posted by Blknight.aus

For any of the diesel Pandora you don't need an after market governor, it has one, you just need a hand throttle to make it work... The simplest on is a screw clamp with a small hook welded to the floor near the accelerator, once you have the pto engaged hook it over the accelerator pedal and then use the screw to fine tune it once you have the load on.

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Thanks mate. Is suggest I will do something similar to your suggestion or an old push bike shifter like the cruise control I fitted to my cruiser.

Cheers.

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Originally Posted by workingonit

Had a look at firstfours site and basically could only find product references to hydraulic or electric winches. Link to crank driven would be useful.

The only reference on their site I could find to crank driven (search 'crank') was this '...The hydraulic system is driven direct by a crank-driven pump and has a flow rate of 26 litres per minute to keep the Trydent’s working as they should...'. Under south west challenge.

First Four News

Without further links for clarification how are we defining crank driven? Off the front where the harmonic balancer is for example? Or some mechanical drive off the transfer case input gear dogs (construing this is driven off the crank) - check you have dog teeth on your input gear as later Diso 1's for example were not cut, from my experience. Buy a replacement for about $200 or so.

The literature that came with my maxi-drive pto hydraulic pumps says '...this is a very simple and economic way to provide hydraulic power of up to 20kW (30HP) for any number of purposes...'.

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Hi mate,
I can't get to the link on my mobile. That said, just try to google 'firstfour 300tdi pump'

Cheers.

So you are talking about this system which mounts instead of an AC compressor on a 300 tdi?
300Tdi 26cc Hydraulic Drive System for Defender with mechanical clutch.

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Originally Posted by isuzurover

So you are talking about this system which mounts instead of an AC compressor on a 300 tdi?

300Tdi 26cc Hydraulic Drive System for Defender with mechanical clutch.

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Hi Isuzu,
That's the one, but I'd use the larger pump. 33cc I think.

Cheers, Adam.

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Originally Posted by kreecha

Hi Isuzu,
That's the one, but I'd use the larger pump. 33cc I think.

Cheers, Adam.

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36cc.

Not sure - their site seems to be down, regardless if I follow the links given here or from google.

I talked to them about the pump that sits in place of the aircon...seemed OK. But I didn't want to give up aircon because I don't get European summers.

If I remember correctly they also advertised an upgrade to the power steering pump for the Tdi300 - taking it from about 1100 or 1300 to 1500 psi. Very slow and for Defenders only they said. Explaining I had a Tdi300 Disco made no difference - no sale. But I said, the mounting system looks the same - no sale!

So on to maxi drive.

Which ever way you look at it all the systems are crank driven, just by rubber bands or gears, and the systems discussed are hydraulic it seems to me if I understand correctly.

If you have aircon and want to keep it then you have to use the power steering assist which is not high output, or the maxi drive off the trans case. And if you go maxi drive with the larger pump they supply, in a Disco, then you will also have to cut into the floor support - Defenders have a bit more room I understand, so no cutting the floor.

Sorry, meant to say all the other parts you require may also prove to be rather expensive - pressure relief block, oil tank, radiator, direction controller (maybe), lines etc. And if you are thinking of putting a hydraulic winch in, cause you've got most of the system already in the log splitter, then you are looking about 65kg with steel cable (and the cable is only a small part of that weight), and a hydraulic lock (can't remember the tech term) so that the winch is braked when it has a load on but not being driven.

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Originally Posted by Blknight.aus

48kw is a lot a lot of hydraulics.. cooling, flow and filtration may become an issue as will the size of the lines your going to run off of the pump, unless your going to be running a very high pressure but relatively low flow pump which I'm not convinced the dogs for the pto Will appreciate.

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My thoughts too.


Mite just be me, but I couldn't see in that site where they actually gave a max torque limit for their PTO. Its fine to say 11-115cc pump, but 115cc @ rev X 1000psi is very different to 115cc @ rev X @ 3000 psi.


In all seriousness, running 48kw from the PTO of an 18 speed roadranger takes very careful pto selection if you want it to last, exp when working with extended duty cycles. I would think they are a tad more robust than most LR offerings.

What exactly are you going to inflict on the timber with this 'system'?

Hydraulic chain saw? Hydraulic circular saw for slabs? Mulcher? Rail based ram splitter? If you've already split the logs then what does the 'firewood processor' do?

Lathe:) ?

Not one of those machines with hydraulic boom, giant nippers, shreds all the branches and spits out a clean log!!

Are you picking up old fallen trees or cutting down new, or both?

I've cut down a few large trees, by NT standards, and found the back hoe on a tractor very useful for dragging, positioning, lifting and holding while dropping sections without the need for undercuts. A 'horse' might be useful.

Have you considered agrichar production?

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Originally Posted by Rick1970

My thoughts too.


Mite just be me, but I couldn't see in that site where they actually gave a max torque limit for their PTO. Its fine to say 11-115cc pump, but 115cc @ rev X 1000psi is very different to 115cc @ rev X @ 3000 psi.


In all seriousness, running 48kw from the PTO of an 18 speed roadranger takes very careful pto selection if you want it to last, exp when working with extended duty cycles. I would think they are a tad more robust than most LR offerings.

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Do a google on red winch, all the products discussed are there including the first four pto adapter. The pumps they describe start at 26cc, I think that they may have something up to about 55cc. The pressure they develop will depend on the flow rate. Agree that pressure at high flow rate equals a lot of power, I suspect the OP knows that.

48 kW sounds like a fair bit to push out through the transfer case pto/splines a lot of heat to manage both on the engine cooling side and the hydraulics, good radiators/coolers and fans required.