> The controller is just an on-off switch to a PM > motor; you control speed and direction with the > 4-speed transmission and v-belt/clutch
Sorry to disagree with you Lee, but that doesn't describe the E12/15/20 series of GE Electraks at all.
The E12's do use PM motors driving a 4 speed Peerless transmission via V-belt, but the motor control is resistive elements and contactors. Reverse is accomplished by reversing contactors. No clutch was used.
E15 is an upgraded E12, with a compound wound motor using resistive control and field weakening. V-belts were doubled up. Three "throttle" positions controlled armature current, then four field weakening positions.
E20 Added "cruise control" due to the use of an accelerator pedal instead of a hand control. Four full field armature steps and four field weakening.
I don't know where the seller found the "32 speed electric drive" information, but that's bogus.
These rigs do have some design flaws. The steering and brakes are notoriously poor if not maintained scrupulously. The "toaster" (armature resistor assembly) failed frequently. I'm just today finishing rebuilding the one from my E20. Sometimes they would be burned beyond repair. Mine was close.
By the time Spring rolls in, I expect to have mine converted to Leaf cells, two series packs of five modules in parallel. Leaving the four T-105's under the seat for weight.
Note the prices of Electraks have held steady for years. A mowing deck in operable condition, with little rust is worth almost the price this tractor is offered at. This tractor is easily worth $2,500, assuming it runs and mows, probably a lot more these days.
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