Before the conversionGas engine Control BoxNew MotorFinishedAlmost FinishedControl Box
OwnerBrad Hori
Owner's Other EVs1997 AeroVironment Charger
2007 HP Velotechnik SpeedMachine
2005 EV Global Ebike
1997 Charger Bicycle
2012 Fiskars 6201
McLane Edger
LocationMonrovia, California United States map
Email email image
Vehicle2010 Sears 247.770110
Gas powered yard vacuum, chipper,
shredder, blower.
Rear discharge into a thick cloth bag.
MotorScott 4BB-0X837 Permanent Magnet DC
2 HP motor from the AeroVironment
motorcycle. 42 volt motor 4500RPM.
Direct drive.
DrivetrainOriginal motor is a Tecumseh 4.5 HP
vertical
Controller 234999823622
Noyito 10-55V 60A PWM
Batteries1 36V20AH, 37.00 Volt, Lithium Iron Phosphate
CAO MM
System Voltage37 Volts
Charger
Comes with the battery
Conversion TimeGuesstimate, 4 weekends
Conversion Cost$22 for controller on eBay, motor free,
shaft 304ss, $15, baseplate 1/4" aluminum
free. New cloth bag $50. Old vacuum?
New battery $225
Additional FeaturesThe controller has a pot to soft start the vacuum rotor
(made of cast aluminum), plus the controller has a digital
readout (%), so I don't go over the rated RPM. It also has
forward and reverse, of course I can only use it one way,
which is actually running the motor backwards!
Added a voltage/current meter. Used a shoehorn to get
everything in the plastic case.
Voltage to the motor should be around 27V for 3600 RPM.
I'm back again. Now that the drought hit California 2 years
ago, my beautiful lawn has died and recently have had
Artificial Turff and Flagstones installed, so no more
watering. My converted mower and edger are now useless! But
I've been wanting to convert my yard vac for years. Now I
have an excuse. Took so long because I had to machine the
tapered shaft, adapt it to the motor, make a mounting plate
and spacers to mimic the original ICE motor.

code by jerry