[JRP3]

Originally Posted by charlie

BRG,
Plamen Nakev,
Balkancar "G. Kostov" JSC

That sounds like Plamenator on this board.

[kingjamez]

Originally Posted by lazzer408

I

Hopefully the mods don't mind me posting it here. I had kingjamez in mind because I think $350 is too much for what he's looking at. Where you located kingjamez?

Lazzer,
Man I wish I was closer to you, I'd snap one of those up in a second. Unfortunately I'm in Maryland, but thanks!

Now... back to studying Jim's rebuild pictures!
-Jim

[Forklift Guy]

Hi davex44

You can simply tell a separately excited dc motor by the size of the cables on the field coil terminals of the motor if you get to see it while it is still in the forklift. The SepEx motor will have much smaller cables on the field terminals.

I assume by your pics that you might not have access to the forklift anymore, so if you can post the motor No# and any other no#s that you have ( Forklift Model and Serial no # would help alot ), i can look it up at the shop on Monday.

Brad
Forkliftguy.

[idslayer]

Hello everyone,

I just purchased a Datsun SYBO2L28V forklift as scrap. No forks and like everything else, batteries not included. At the heart of the beast s a DC model MT4100, 10 kwh Hitachi motor. That's the propulsion motor. I have some pics I will share, but it looks like I will need to upload them to another site, 1st, to link to.

My buddy was looking to see what drives the hydraulic lift boom and found another Hitachi DC MT4100, 11 kwh motor! I haven't got any pics of this one yet, -- it is encased on the lower left side, about mid-way on the machine. It's so clean you could eat off it!

The White Zombi is driven by 2 MT4100 Hitachi motors hooked up in series. http://www.plasmaboyracing.com/whitezombie.php

The controller is mounted in a cavity in the counter-weight on the back & the schematics are on the inside of the protective plate steel door. I have pics of all & all looks quite clean, including the contact points.

So far, I've removed the meters, BMS, throttle, directional, horn and wiring harness, back as far as the propulsion motor. I'm labelling everthing as I go, and taking plenty of pics. I'm hoping to incorporate all of into my donor vehicle, which I haven't decided on, yet. I own 3 rather ugly possibilities, all with auto transmissions. One's a 4x4.

Do I even need a tranny? What about an overdrive gear? How about an electric overdrive?

Then there's the batteries... According to Joh Weyland and crew, "it's the batteries, stupid".

I'm just getting started, and operating on a beggar's budget, so this project might take some time, but I want to do it right, and document the whole process to properly demonstrate the phenomonal viability of electric propulsion.

I really appreciate all the efforts that have gone on before me, and the cooperative spirit that is inherent throghout this forum, with all the accumulated experience that's being shared here. I look forward to joining you all in this worthy endeavour to promote this clean and efficient electrifying propulsion of humanity into the twenty-first century.

Cheers eh,
Dave

[Forklift Guy]

Hi idslayer

Im useing the same Hiatchi drive motor for my Ford Ranger conversion. See " EV Ranger " in the garage section. I do think that the drive motor is overkill even for my Ranger, but it was so eazy to make a clutch/trans adaptor out of the brake yoke on the back of the drive motor ( same spline on both ends of the motor ) As for the Hitachi 11 kw lift motor, it has a male splined shaft that goes into a female splined coupling with a set screw, that adapts to the male splined hyd pump. It might also make a good clutch/trans adaptor for an EV.

The rest of the forklift is 48 volts, so it's not possible ( ie: practical ) to use in an EV, even the speed pot is an electronic hall effect position sensor, instead of a regular 5k ohm pot found in most other forklifts. You can salvage alot of hardware, like cables, fuse holders and links, maybe even the contactors might have a future use depending on your EV's voltage/amperage requirements.

I went with the Hitachi drive motor, 144 Volt / 800 Amp controller from ElectroCraft, GE contactors from a Hyster forklift, and a regular 5k ohm pot box from the same Hyster. Once you deside on your battery pack voltage, you will have to advance the timing in the motor accordingly, mines 12.5 degrees advanced for 144 volts. At the present time i'm adapting a tach with a shift light to use as a speed limiter. The highest RMP i might go is 4500 RPM. Just a final note, don't lift the drive motor out of the forklift with a bolt/lifting eye in the threaded hole in the centre of the motor. The threads arn't strong enough for the weight and might pull the threads out. Use a lifting strap around the motor to lift it, just for safety.

Best of luck !!!!
Brad
forkliftguy.

[JRP3]

And plan on using a transmission.

[idslayer]

Originally Posted by Forklift Guy

Hi idslayer

"the drive motor is overkill even for my Ranger".

Thanks Forklift Guy.
I had a look @ your Ranger in the garage. It looks like a full-size truck.

There's a full-sized '95 Dodge 4x4, 5-speed standard tranny, extended cab with a blown motor that I might be able to get for 500 bucks. It's a clean looking vehicle but with over 400,000 kms on it. I don't know anyhing about the service history, yet, but it has good tires on it :-) Do you think it would be an appropriate donor for my Hitachi motor?

Could the Hitachi 48 Volt hydraulic steering motor be adapted to maintain fluid pressure in an automatic transmission, like in my little GMC 4x4 pick-up truck?

As for batteries, I just emailed an inquiry to powergenix.com. Their nickel zinc looks promising. I'm thinking 144 volts, minimum. At any rate, it looks like I'l be needing a sponsor...

Thanks also for the tip about using a lifting strap around the motor to lift it.

Cheers eh,
Dave

[Forklift Guy]

Hi Dave

The full size Dodge Ram Ext Cab 4x4 would work fine with your Hitachi motor, the problem is that a truck that size might consume 800 watts per mile or more. It would be hard to pack that much battery to get any reasonable distance out of it.

As for using a power steering pump & motor, i considered using that kind of setup on an automatic trans, and the power steering box, on the same pump. Since then, i found the little Ford Ranger with a 5 speed, so i'm using a 12 volt lift pump motor from a small pallet truck to turn my OEM power steering pump.

Best of luck
Brad
forklift guy

[rcavictim]

Jim Husted,

I have recently discovered this very informative forum and after reading quite a lot of this thread have taken a second look at a forklift motor I picked up a few years ago that I thought had no possible application in a proposed EV. The opinion I'm reading here says it may indeed. Could you please comment?

Allis Chalmers Frame 725B3
HP 3.6
Volts 36
Amps 95
Duty 1 Hr.
Service factor 1.0
Field excitation volts 36
ins.class B
Temp rise degrees C winding 90, commutator 105.

It weighs 208 lbs. It is 11-1/2" diameter and the length of the central pipe containing the stator but not including the end bells is 11". With end bells but not including the shaft protrusion out both ends 16". It has four heavy brushes at quadrature points. There are a lot of segments (bars) in the commutator, so presumably I can probably pour quite a bit of voltage to it. One end had a machanical brake which I removed. The other end has a pinion gear on it apparently intended to bolt up to a rear differential with mating hypoid ring gear. The armature and field terminals (4 total) are separate so reversing is easy.

I'd like to put it in a small car like my old 1984 hatchback, rear wheel drive Toyota Celica GT and drive the automatic transmission. I'd like to be able to cruise at 70 MPH for highway, and normal slower city driving.

I might consider a battery pack of 120 volts at 150 Amp hour rating. I could do that with 30 pieces, 12 volt @51 Ah Hawker Power Safe SBS60 batteries which I have access to. At 40.7 lbs. each that pack would weigh 1221 lbs. If I could get away with 100 Ah rating, a 120 volt pack of 20 batteries would weigh less at 814 lbs.

Regards,
rcavictim
Ontario, Canada

[lazzer408]

3.6hp? Sure that's not 13.6hp? Seems low for a 208lb motor. Post pics.