[bazou]

Hi everyone,

Going to see a forklift tomorrow night and I wanted to ask you guys a few questions.

Just to make sure:

Series has 2 or 4 terms (4 allows to go in reverse)
SepEx has 2 or 4 terms. To differentiate from series wound motor, look at the field leads : they are much thicker on a series wound motor.
Compound has 6 terms (2 A's, 2 S's and 2 F's)


q1)Is that correct?
q2) Also, I have no idea what a field lead is...
q3) To check how it runs, connect A1 and S1 then connect car battery to A2 and S2 ?

Also, I have read a couple articles about DC motors, but all the actual pictures I've seen with arrows pointing to the picture to identify components where on RC Copter motors.

q4) Is there any Forklift motor picture with arrows identifying components around? I have an idea whatthey should look like, but I'd like to make sure *before* buying a used motor. For example, in Jim Husted's thread, we are told to count the comm bars, but I have no idea what they actually are..



Thanks!

[bazou]

btw, here's a freebie:
Electric motor handbook (2004)

The link is bogus. It says the download limit for free users so you can't download. If you have the PDF send it to my private email and I will post on my site for others to download with out the garbage site to deal with.

Pete

PM me and I will send you my email address to use.

[major]

Originally Posted by bazou

Just to make sure:

Series has 2 or 4 terms (4 allows to go in reverse)

Most times

SepEx has 2 or 4 terms.

Always 4 terminals to my knowledge. Usually A1,A2,F1,F2.

To differentiate from series wound motor, look at the field leads : they are much thicker on a series wound motor.

Series motor field coils usually have thick copper ribbon windings. SepEx field coils have round copper wire windings. You might be able to see this more clearly where the coil is terminated to the S or F terminal, sometimes called a coil lead.

Compound has 6 terms (2 A's, 2 S's and 2 F's)

Not necessarily, but good enough for now.

q3) To check how it runs, connect A1 and S1 then connect car battery to A2 and S2 ?

Yeah, that should work, for series motors and compound. For SepEx, A1 to F1 to battery and A2 to F2 to other battery terminal.

For example, in Jim Husted's thread, we are told to count the comm bars, but I have no idea what they actually are..

Check out Jim's web site. Some good pictures and info there.

http://www.hitorqueelectric.com/

Good luck,

major

[bazou]

Originally Posted by major

Good luck,

major

Thanks, thanks, thanks and THANKS!

Originally Posted by bazou

btw, here's a freebie:
Electric motor handbook (2004)

The Book can be downloaded from here:

http://greenev.zapto.org/electricvw/...PDF_Books.html

[bazou]

Originally Posted by major

Yeah, that should work, for series motors and compound. For SepEx, A1 to F1 to battery and A2 to F2 to other battery terminal.

Can I just connect the motor to the car battery and let it run, or do I really need to give it a load?

If it needs to be under load, what would be a good idea for testing purpose?

Thanks

[major]

Originally Posted by bazou

Can I just connect the motor to the car battery and let it run, or do I really need to give it a load?

I have no idea how you would load the motor at the place where I imagine you're going. Just a no load test to see if it actually spins on electrical. The best you'll be able to do.

[bazou]

Originally Posted by major

I have no idea how you would load the motor at the place where I imagine you're going. Just a no load test to see if it actually spins on electrical. The best you'll be able to do.

Have no idea either, just making sure I wont break it if start it with no load.

thx!

For SepEx, A1 to F1 to battery and A2 to F2 to other battery terminal.

If the motor is SepEx and you are only attaching 12 volts then you can wire it up and run it under no load. You will not overspeed the SepEx motor with this little power. You can even test a big series with 12 volts and not overspeed it.

With full pack voltage it is another matter.

Pete