DavidS
Member
my tractor has a 3 speed pto. the speeds are 454,724 & 1185. most implements call for a 540 rpm pto speed, what do you guys suggest that i do???
rto rpm question
- Thread starter DavidS
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Soundguy
Old Timer
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- Mar 11, 2002
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- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
Odd... I've seen 540, 764, and 1080.. on an asian tractor.. but not 450.
If you needed 540, try the 450 setting, and figure the engine rpm to pto ratio, and then see if you can run in that higher range, as the pto rpm mark should be on your tack. If the range takes you into too high of an rpm setting, again, try the 7?? one.. and back down accordingly.. though this may drop you out of your power curve...
You sure about those settings?
Soundguy
If you needed 540, try the 450 setting, and figure the engine rpm to pto ratio, and then see if you can run in that higher range, as the pto rpm mark should be on your tack. If the range takes you into too high of an rpm setting, again, try the 7?? one.. and back down accordingly.. though this may drop you out of your power curve...
You sure about those settings?
Soundguy
slowrev
Elite Member
I would recommend using a small mechanical or optical tach to measure the PTO output speed while trying different PTO and throttle combinations to come up with the 540 PTO speed. Ideally you will want a combination that gives you %$) RPM at close to full throttle for maximum HP output on the PTO.
If you do not have a tach your tractor dealer should have one and be able to assist you in this test.
If you do not have a tach your tractor dealer should have one and be able to assist you in this test.
Soundguy
Old Timer
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- Mar 11, 2002
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- Central florida
- Tractor
- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
well if those stats had any of the same errors in them that the stats in the yanmar manual for my tractor had.. then you're in luck.... hopefully that lower setting is your equivalent of the 540..
Soundguy
Soundguy
looch
Veteran Member
As well as using a tach to figure the correct engine RPM, consider that for low power requirements , set the PTO on 724 and reduce engine RPMs. For more power - 454 on the PTO with increased engine RPM.
DUMBDOG
Veteran Member
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- Jul 11, 2002
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- NH 1630 W-7308 FEL/ Kubota L4630GSTC W-LA853 FEL WQ/A-CC 2544
Here is the website for the information on the tractor. PTO speeds are 454, 724 and 1185.
BOLENS G152/G154
BOLENS G152/G154
DavidJ
Gold Member
I found this page. It states the PTO ranges as 540, 860 and 1000. I tend to believe this as there's several models listed with these same ranges and the 540 & 1000 are standard. It lists the TX1510 as having the odd PTO speeds.
Iseki Specs
If it does work out that you have the odd speeds then to get 540 you'll need to run the engine rpm's at about 2000 and the PTO in second range. This may cost you a bit of horspower but the only other option would be a speed changer and it may be a problem finding the correct one.
I also noticed on one site that it listed the torque rating at 1800 rpm. If that's the case you may be fine running the engine slower to compensate the PTO speed.
Iseki Specs
If it does work out that you have the odd speeds then to get 540 you'll need to run the engine rpm's at about 2000 and the PTO in second range. This may cost you a bit of horspower but the only other option would be a speed changer and it may be a problem finding the correct one.
I also noticed on one site that it listed the torque rating at 1800 rpm. If that's the case you may be fine running the engine slower to compensate the PTO speed.