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Old 03-02-2009, 12:56 AM   #1
gottdi
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Default Cushman Truckster EV

I am new to the site and have recently purchased a vintage Cushman Truckster (Mailster) that had been converted to electric by Taylor Dunn or at least Taylor Dunn parts. Original electric conversion system is 24 volts with a built in Marine 24/30 volt charger. It looks to be complete. We plan on returning this to service as a flatbed truckster around our property to haul stuff. We intend to keep it electric as it goes well with our Solar Panels on our home and for our 64 VW Ghia EV. http://greenev.zapto.org/electricvw

We are glad to find a source on line that may be able to help us in our efforts to bring this baby back to life. All or most of the parts look like they should work.

Pete : )

http://greenev.zapto.org/cushman
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Old 03-02-2009, 09:18 AM   #2
dock98
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Default Re: Cushman Truckster EV

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Old 03-02-2009, 09:23 AM   #3
scottyb
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Default Re: Cushman Truckster EV

Welcome gottdi, Hopefully your property is flat. These little 3 wheeler have stability issues and 24v is not a very strong system. Looks like a fun project. I would convert to 36v solid state electronics for efficiency
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Old 03-02-2009, 09:35 AM   #4
gottdi
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Default Re: Cushman Truckster EV

Quote:
Originally Posted by scottyb View Post
Welcome gottdi, Hopefully your property is flat. These little 3 wheeler have stability issues and 24v is not a very strong system. Looks like a fun project. I would convert to 36v solid state electronics for efficiency
Property is really flat. I am wanting to make it work with the original only for fun and a challenge. I am actually going to convert it to 48 volts and I want regen braking with it. In my opinion solid state is the only way to go. The old stuff is fun to know but not the best for daily use.

Thanks
Pete
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Old 03-02-2009, 09:47 AM   #5
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Default Re: Cushman Truckster EV

Reason I suggest 36 is availability of parts and it is a reasonable overvoltage for the original motor.....You will see a 30% gain in hp and speed.... Again, considering the instability of any 3 wheel design I think a 30% increase in speed is more than enough
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Old 03-02-2009, 09:54 AM   #6
gottdi
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Default Re: Cushman Truckster EV

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Originally Posted by scottyb View Post
Reason I suggest 36 is availability of parts and it is a reasonable overvoltage for the original motor.....You will see a 30% gain in hp and speed.... Again, considering the instability of any 3 wheel design I think a 30% increase in speed is more than enough
I don't plan on using the original motor when I convert over to 48 volts. With a gas engine I can see stability issues but with and extra 500 plus pounds of batteries set low in the frame I don't see much issues. I'm not going to be hotroding this thing around. It will mostly be a carryall sort of thing and it is meant to be driven slow unless on the roadway.

Anyway more will come in the technical area later. I do have technical question I hope some here can answer. And I hope some can answer my electrical questions too. I will be posting later. Gotta go to work now.

Pete : )
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Old 03-02-2009, 11:51 AM   #7
rusty
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Default Re: Cushman Truckster EV

Hello gottdi and Welcome to the forum.
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Old 03-02-2009, 09:00 PM   #8
gottdi
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Default Re: Cushman Truckster EV

Thanks you all for the warm welcome.

Pete : )
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Old 03-03-2009, 08:21 PM   #9
gottdi
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Default Re: Cushman Truckster EV

Ok, Since my intro post got moved to the trouble shooting section I am going to ask if anyone has any wiring diagrams for these old contactor style speed controls on these old 24 volt systems. I will be pulling a few things to change the small wiring so it will be all clean and tight. I suspect most of the original system still works but have no diagrams for wiring the speed controls. Need it to wrap my brain around and to learn some new things. Yes, I do plan on upgrading but until then the original 24 volt system will do just fine. I don't expect that I will be driving this thing very fast around the property. What photos do you need to help figure things out? Until I get the bed off I won't have any photos of the specs of this motor. I did find a source for replacements motors and it looks exactly like what I have. Yes it is Taylor Dunn stuff.

Pete : )
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Old 03-03-2009, 09:03 PM   #10
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Default Re: Cushman Truckster EV

Gottdi,

Congrats on your Truckster. It is a cool looking cart. I recently bought a 3-wheeled Taylor Dunn mule that is 24v. I was planning to convert it to either 36v or 48v. I was willing to spend a few bucks as I was looking forward to the project as a hobby. However, I installed new batteries in the 24V system just to test it out and I was suprised at the results. The cart is not fast by any means but it can be unstable at max speed. It has a very tight turning radius which can be dangerous at full throttle. I have some kids that use the cart from time to time and I would feel comfortable letting them drive it alone even at 24v. A higher voltage would only make it worse.

My advise is to get it running and test out the 24v system before going big on a 36 or 48 system. A member from this board gave me some great advice that I really appricate now- Don't invest in the old Taylor Dunn. Get a major brand golf cart for your hot rod as there are tons of aftermarket parts. Just something to think about. Good luck

Tom

Last edited by tmuenster; 03-03-2009 at 09:04 PM.. Reason: spelling
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