Mechanical question

[leemsutton]

Is it possible to change a CAT/CLAAS Challenger 75 e into a 95e?

The only difference according to the manual is the engine power. Everything else is the same, weight etc.

Any opinions?

Lee

[Woodbeef]

Hey Lee,

What the Cat not have enough snort?

I'd try posting over at Machinery Talk on both @gonline www.agriculture.com and New AgTalk talk.newagtalk.com

Hey it's well over my roughly 100 hp realm of knowledge. But if the only difference is the pump settings,hhmmm.......

[orange]

Usually, on most tractors, all that seems different is the power of the engine, but in most cases it is not, for example on the MX magnums the rear axles are different and some other tractors the master clutch or clutches have 1 or 2 extra friction plates in them to cope with that extra grunt, hitches and link arms are sometimes different. My advice would be to check some pt no's between the 75 and 95 if there are some small differences I would leave it alone, you need the machine to work for a few years not just for 6-7 weeks planting.

[kenjar]

Hey Lee,

I thought the 95E and 75E had different engines, 12L vs 10.3L.
75Es had about 340 hp, I can't see getting 70 more horses out of the 10.3.(reliable horses anyway)
Might be possible with the right tweaking to get 20 or more, might check with your Challenger service manager.

[leemsutton]

We have plenty of grunt but there was two reasons why I asked the question. When we demoed a 95e the fuel usage was about 30 litres per hour as we were well on top of the job.

The 73e is using about 60-80 litres per hour as we are making it work. I thought if we could get the 95e hp out of the 75e then our fuel usage would drop.

Also maybe thinking of increasing the size of the cultivator to 4.5 metres which means we would need the 95e 410hp anyway.

Lee

[Woodbeef]

Hey Lee,

As I'm sure you know it is torque that you require more than horse power.

What are the quoted torque values for the models? It might be in nm not lbs.

Not really sure if you can increase the torque values by just tweaking the pump.

[eppie]

Increasing torque might be possible, if you know how to tweak the pump corrector.

By the way: what is your soil type, and working speed?
410 hp sounds reasonable for an 8 meter wide cultivator to me...

[leemsutton]

Renze,

We currently have 340 hp on a 3 metre cultivator. We would need 400+hp for a 4.5 metre cultivator.

If they manufactured an 8 metre version you would need 800hp.

Rule of thumb for this particular cultivator is 100hp per metre.

Woodbeef, I'll look in the book for those figures tomorrow.

Lee

[eppie]

Well, i work with 50 hp on a 3meter S-tine cultivator, preparing seedbed at about 11-12 km/h, working depth about 7-8 centimeter. For loosening hard soil (horse land), we use our neighbor's 2 meter wide cultivator with 11 teeth pulling it at 3.5 km/h about 35-40 centimeter deep.

I wonder what kind of cultivator you use. Is it a combi, with deep rippers, standard tines, disks and seedbed harrow in one? Or is your soil that heavy? Maybe you work on hills, or at 25 km/h.
Or you might be a spoiled farmer, being used to have that much power under your butt. ;D

So, if i would borrow your cultivator, i should work with a width of 50 centimeters?? Sounds funny.

[sfm]

No
The CH75E runs the Cat C-10 Engine, at 10.3 L Capacity. The 95E runs the C-12, a 12L displacement engine.
From memory, the 65E / 75E uses the same transmission, back end, and so does the 85E / 95E.
There is also something else different, it may be the 65/75 does not have a trnsmission cooler, as the 85/95 does.

[Si]

Hay Lee Buy a Quadtrac..... that has a scary-meter, showing you how many gallons (or liters) you are using an hour (or ha), and when working you can choose a higher gear and less revs to see if it uses less diesel
Cheers
Simon