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|10-10-2017, 12:57 AM||#1|
Join Date: Feb 2001
Location: Salem Oregon
Vehicle Year: 1990
Vehicle Make: Ford
Vehicle Model: Ranger
I use this vehicle for: holding down the drivewayRep Power: 45
Forward/reverse switch for old electric cart
My family ended up with a Taylor Dunn utility cart from the 70's, it's 36V electric with a 9" rear end, 6' flat bed, resistor based speed control that is intact and a forward/reverse switch that is in pieces. Apparently it's ~$35 for new contacts for the switch that it came with but we only have about 3/4 of the switch... I'm crafty enough I could make it go but am missing the lever and such... Apparently these things are ~300 amp max and the forward/reverse switch shouldn't be handling the switching load making the life of the switch easier... It's ~$130 for a switch for an EZ Go golf cart, a WHOLE LOT more for a fancy speed control and everything to update it, or $30 for a double pole double throw safety knife switch I found HERE. It's rated at 100A which I imagine might be for each pole so 200A in this application
Thoughts? I'm tempted to give it a shot, it's cheap enough...
converted to 4x4, turbo'd the 2.3, 6" lift with 35's and 5.13 gears!
Send e-mail instead of PM, box full...
|10-10-2017, 10:26 AM||#2|
Join Date: Jun 2012
Vehicle Year: 1994
Vehicle Make: Ford
Vehicle Model: RangerRep Power: 55
What's the watt or AMP rating of the motor at 36volts?
One of the big problems for electric vehicles was dealing with the AMPs, higher amps tend to WELD together contacts if they arc or heat up, throttle controls and forward/reverse switches were the main issues that had to be dealt with
Even if motor is rated under 100amps at 36volts the 300amp contact surface may have been used to prevent heat up
You also have to reverse BOTH 36v and Ground to the motor in most systems
|11-28-2017, 10:30 PM||#3|
Join Date: Oct 2007
Location: Toledo Ohio
Vehicle Year: 2000 2005 199
Vehicle Make: Fords
Vehicle Model: Rangers Taurus SHO 5spd
I use this vehicle for: going to Cabelas
My credo: get outta my way, I'm falling!Rep Power: 26
construct the "H" path with 4 starter relays? then you could use a low current switch to trigger the relays. I'm not sure how a starter relay would like to stay energized for an extended amount of time.
or look on Grainger for a real relay, but industrial stuff is very expensive.
|11-30-2017, 10:52 AM||#4|
Join Date: Oct 2014
Location: Albuquerque NM
Vehicle Year: 1989
Vehicle Make: Ranger
Vehicle Model: Extended cab XLT
I use this vehicle for: A bank. I put in money.Rep Power: 9
How about a solenoid pack for a winch. They are designed to reverse motor direction and carry a lot of amps.
89 Ranger XLT EC 2.9 V6 4X4
97 Expedition EB 5.4 V8 4X4
05 Explorer Limited 4.6 V8 4X4
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