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Yep, that's
great but I still don't know the speed ratios for the motor speed control of the
E12 and E15.
Method to my
madness; I use the tiller a LOT. The highest speed in LL appears to be
lower than the lowest
speed in L
with an E12. Is that true, or is it just perception.
Larry
Elie
-----Original Message-----
From: elec-trak-bounces cosmos phy tufts edu [mailto:elec-trak-bounces cosmos phy tufts edu]On Behalf Of Ralph G Vogan Sent: Monday, July 12, 2004 2:45 PM To: Elec-Trak Subject: Re: (ET) Elec-Trak ZTR If you know the top speed of the
tractor you should be able to figure the RPM of the motor at that speed in
D2. Calculate the number of feet it travels in 1 minute at that speed
(FPM); 5280 X top speed then divided by 60 = FPM. Measure the exact
distance your tractor moves for 1 revolution of the back wheel (It dependes on
the size of the tires), and divide that into the FPM. This is the RPM
of the drive wheel. Multiply the wheel RPM by the gear ratio of D2 to
get the MOTOR RPM at that speed.
By working backwords you can get
close to the top speed in the other gears using their gear ratios.
Allthough the motor may run a little faster in those gears because it has less
load on it.
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