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Re: D17, PURCHASE

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John (MO)

10-20-2005 06:06:47

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There is a lot of confusion and misunderstanding between people on the difference between live power (as in PTO and hydraulics) and independent power.

I believe the normal use of the two terms is as follows: LIVE power is when you can have power to the PTO and hydraulics anytime the engine is running, regardless of movement or nonmovement of the tractor and even while shifting. INDEPENDENT power is when you can have power to the PTO and hydraulics, independent of the main clutch to the transmission. AC accomplished independent power, first with the hand clutch on the WD, WD45 and CA and then with the power director on the D series tractors. The AC D-17 series 4 was the first with true LIVE power to the hydraulics. Certainly auxiliary hydraulic pumps could be added to models maybe as early as the WC that operated off the front of the crankshaft and required their own hydraulic reservoir. These gave add on LIVE hydraulics but were not factory standard equipment.

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JMS/MN

10-28-2005 11:26:44

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Re: D17, PURCHASE in reply to John (MO), 10-20-2005 06:06:47

John- I don't mean to start a spitting contest, but the reason why so many people are confused is because of the misinformation they receive, like on this board, including from people like you. You have the situation bass ackwards. Live power means you can stop wheel motion without stopping the pto, even if it means you need to stop all motion to engage the pto. INDEPENDENT pto means you can start or stop the pto whenever the engine is running, no matter if the tractor is moving, in gear, etc. AC established LIVE power with the 1948 WC, then the CA with the hand clutch, WD45. D Series with the Power Director, which gave live power and high and low speeds in each forward and reverse gear. The Series IV D17 had INDEPENDENT hydralics as well. Independent is one development stage beyond live power, not the other way around. Live power does not mean yopu can push in the foot clutch and shift the tractor. That is independent.

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