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Re: (ET) Electric Tractor Conversion Update



Title: Message
Why not just use one motor to drive the existing hydraulics and leave everything else alone?  The hydro would run at a constant RPM and the speed control would be by stock shuttle valves.
 
 
Robert W. Klein II
SSGN Deputy Technical Manager AWS/AWSS
1176 Howell Street
Newport, RI 02841
Phone: 401-832-1948
Toll Free:  1-800-669-6892 Ext. 21948
FAX:  401-832-7877
e-Mail: kleinrw npt nuwc navy mil
-----Original Message-----
From: elec-trak-bounces cosmos phy tufts edu [mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of Mike Finck
Sent: Tuesday, November 21, 2006 9:43 AM
To: elec-trak cosmos phy tufts edu; ThompsonG DFO-MPO GC CA; metman glasgow-ky com
Subject: Re: (ET) Electric Tractor Conversion Update

I'm surprised 11 hp could power the hydros and the deck.
  With the mass of the front deck having to be swung in order to make 180's the tires have to grip well.  With steering levers with say 6" of travel one can "feather" the power to the drive wheels until the inertia of the deck mass is overcome and then the 180 turn (without excessive tire spin) can occur.  Can there be enough "feel" in the Alltrax?  How do you plan to translate your control (ie levers?) to the Alltrax?  I like the concept a lot.  I have mowed with Dixon ZTR's for 30 years, there is no more efficient way to move around a yard, "feel" is important when operating a ZTR.