slider_phil
Likes Bikes and Dirt
Dyno testing tractors this morning. Usually a bit warmer in the dyno shed than in the workshop
What does your day look like?
- Thread starter johnny
- Start date
hifiandmtb
Sphincter beanie
She's free revving, ain't she!
rockmoose
his flabber is totally gastered
Where's the tractor?Dyno testing tractors this morning. Usually a bit warmer in the dyno shed than in the workshop
Love me a bit of tractor porn.
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slider_phil
Likes Bikes and Dirt
PTO dyno's lug them down to get HP and torque values. So you engage the PTO, bring it up to max engine speed (about 2000rpm) then add resistance to the PTO shaft through the dyno.
No tractor pics at the moment as I'm now out working on the stuff i usually fix, sprayers.
No tractor pics at the moment as I'm now out working on the stuff i usually fix, sprayers.
rockmoose
his flabber is totally gastered
Phwoar. Still getting a little woody.PTO dyno's lug them down to get HP and torque values. So you engage the PTO, bring it up to max engine speed (about 2000rpm) then add resistance to the PTO shaft through the dyno.
No tractor pics at the moment as I'm now out working on the stuff i usually fix, sprayers.
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Rear PTOs normally run at 540rpm or 1000rpm for smaller machines. Some like mine do both to be able to use different implement manufacturers. In Japan the rice paddy tractors run hugher speeds. 2,000 and 3,000rpm from memory. Not much torque at those speeds but they are tilling mud.
rockmoose
his flabber is totally gastered
Think I'll keep my flail mower running at 540. Wouldn't find me within coo-ee if that focker was spinning at 2 or 3k.
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They are scary! Even if it is mulching up mud and straw there is something unnerving about the gizzards spinning that fast.
slider_phil
Likes Bikes and Dirt
Yep, about 1800 engine rpm is 1000/540 PTO rpm, depending on the shaft. When we rev them to 2000rpm (1100ish PTO) we find that we get close to max HP around that 1000 PTO rpm mark, but max torque around 800 PTO rpm.
Cardy George
Piercing rural members since 1981
Is that 300 neddies at the shaft? Or are there loss calculations involved?
slider_phil
Likes Bikes and Dirt
At the shaft, engine makes about 360hp at the crank on this particular machine
Cardy George
Piercing rural members since 1981
Your hammer's not big enoughFriday night in Narrabundah... Living the dream baby!
Haakon
has an accommodating arse
That’s what she said...
Ultra Lord
Hurts. Requires Money. And is nerdy.
Theres a hammer in that photo?
pink poodle
気が狂っている男
I would like to take this chance to commend @Haakon for his honesty and bravery in this photo. Despite knowing his hammer is a little small and unlikely to do the job, no matter how many times he tries to tap it in, he didn't hold back and still posted the nude wheel photo.
Also the admission that he will end up hammer that thing back together in a fit of Friday frustration filled rage is a step forward.
Also the admission that he will end up hammer that thing back together in a fit of Friday frustration filled rage is a step forward.
hifiandmtb
Sphincter beanie
I was wondering where the kiddies seat was...
Haakon
has an accommodating arse
It does the job.
slider_phil
Likes Bikes and Dirt
I commend your bravery using spring compressors. Doesn't matter how many times you use them without issue they still feel like a live hand grenade ready to go off at any time.