ChassisTransaxleRolling ChassisMotorBottom viewMotor mounted!
OwnerStephen Chapman
Owner's Other EV2000 Fisher-Price Powerwheels Bigfoot
LocationOak Ridge, North Carolina US map
Web/EmailWebPage email image
Vehicle1975 Murray 11HP 36
This is a dead riding mower conversion
project. The result will be an
electric lawn tractor that will be used
for moving stuff around my large yard.
It is also the working prototype for my
'88 5.0 Mustang conversion.
MotorGeneral Electric 5BC48JB92 Series Wound DC
60's vintage EZ-GO golf cart motor. It
sat unused in the woods for over 30
years, but cleaned up nicely. It is
rated 1.5HP @ 2800 RPM and 36V/40A.
DrivetrainBelt drive to stock Murray transaxle
(made by Peerless Tecumseh)
from original ICE location. I picked
up a pulley from Tractor Supply to
avoid building anything special.
ControllerCurtis 1206
If I can locate a connection diagram....
Batteries3 Everstart 27DC-6, 12.00 Volt, Lead-Acid, Flooded
Walmart deep cycle, (not the
starting version). Rated 115AH or 160
minutes at 20A for $62. This class
battery seems to be popular for tractor
conversions.
System Voltage36 Volts
ChargerSoneil 1212SR
I have the original '60s vintage 36V
"Golf Car" charger that will belt out
25 amps, but it is just a
transformer/variac/rectifier/timer. I
will use (3)of the Soneil 12V 5A that I picked up from eBay for $50 each. These will be mounted onboard.
InstrumentationMotor and battery ammeters are
planned...
Top SpeedTBD
RangeTBD
Watt Hours/MileTBD
Seating Capacity1 adult
Curb Weight400 Pounds (181 Kilograms)
Estimated...
TiresTypical lawn mower fare. I had to put
tubes in, but after 34 years, the tread
is still in very good shape.
Conversion Time100 hours estimated. I get a good rate
on my time. :)
Conversion CostThe Murray tractor was free, the motor
was free, and the #6 wire was free. The batteries will be around $200, the
controller, potbox and contactor should add up to another $200, terminals, fuses, instrumentation are expect to be another $250 for a total of $650 for the EV part. I will probably spend around $100 refurbishing and painting the 1975 donor.
Just a grownup Powerwheels riding toy....

code by jerry