Wiring for Alternator zetor 8011

Hi!

I have got a Zetor 8011 ~1974. I think the alternator/regulator need to be "more" connected. Some wires are missing.

The regulator has 3 connectors marked "15/54", "M" and "R".
The alternator has 4 connectors marked "+","D+", "no sign" and "B+".

The regulator's connector "15/54" is wired to the Key switch on to the ignition lamp and to
the "R"-connector on the regulator.
The R-wire also goes to the alternator "D+"-wire.

The alternator connector"B+" goes to the key switch and battery/starter.
If this is right? It looks like it is working. The voltage is 14.15 V over the battery when running.

The questions are:
1.Where should I connect the regulator's "M-wire"?
2.Where should I connect the alternator's "+" connector?
3.Where should I connect the alternator's connector which is located between the "D+" and the "B+" connectors.

Best regards, Hans, Sweden


Link to wiring picture
http://web.telia.com/~u54809175/

Your wiring diagram is shifted to the left when viewed so only half of it is visible.

What make is your alternator?

Is the regulator an external unit seperate to the alternator?

On LUCAS alternators:

B+ terminal is for the battery connection.

D+ terminal is for the charging warning light which is normally wired through the ignition switch so as to not discharge the battery when the tractor is not running.

The plus + terminal is probably to "excite" the alternator to get it to work. This would need to be wired through the ignition switch.

The "no sign" terminal - ????

As Tom said , we need to know whether the alternator is the origional PAL or if it has been changed to another make.
the PAL needs a regulator which is under the dash panel on the right, but most Lucas ones have the regulator built in. The Lucas ones are very simple to fit after a little re wiring.
The 2 big spade terminals or the larger of the terminal studs go directly to the starter motor terminal.
The smaller spade or the small stud goes to the same supply as the other, but through the key switch and the warning light. If wired without the light in the circuit you will cook the alternator if the key is left on for any length of time without the engine running. It will not charge if the bulb is blown because this wire exites the alternator.
PAL alternators have the 2 small wires plugged in to the similar coloured sockets- R = red and M= black , and the thick red wire goes from the alternator large stud then to the regulator D and on to 54 .
The black small wire is an earth .

Hi!

Strange that the wiring diagram does not work!
I Can't find the make but I guess it is a PAL according to your description.The regulator is to the right under the dash panel.
I write my questions in capitals!

As you write there are 4 terminals at the alternator.

"Marking"
"+" small spade -NOT CONNECTED. WHERE TO WIRE?
"D+" small spade wired to The R terminal on regulator.
No mark large spade -NOT CONNECTED, WHERE TO WIRE?
"B+" large spade. Wired to starter/battery via Amp-meter.


BUT the regulator are marked withe

"15/54" --- Blue, wired to the Key switch no 15. I think.
"M" --- Black wire goes up to the alternator but is is not connected. WHERE ON THE ALTERNATOR SHOULD THIS BE WIRED? or SHOULD IT BE grounded?

"R" - - Red. Two red wires. One is wired to the "D+" and one to the warning light.


I do not really undestand this following you have written.

PAL alternators have the 2 small wires plugged in to the similar coloured sockets- R = red and M= black (DO YOU MEAN ON THE REGULATOR?), and the thick red wire goes from the alternator large stud then to the regulator D (THERE IS NO "D" ON MY REGULATOR) and on to 54 .
The black small wire is an earth . (DO YOU MEAN THE BLACK WIRE FROM THE REGULATOR?)

best regards,
Hans

Problem with these tractors is that the wires are not always colored as in the book. Also there a few different regulators about. the old ones were mechanical with coils and points and the new ones solid state.
If you look at the alternator from the back there is a large stud terminal . this is B+ .
Next around clockwise is spade socket M , alternator plastic color red, next is black color plastic spade socket R.
The small screw in terminal is the earth.
M on alt to M on Reg..
R on alt to 54 on reg.. YES 54 !!
B+ on alt to 30 on switch and battery.this is the big (red?) feed wire.
other side of switch is 15/54 which goes thru the light to R on reg.

Here is a pic of the regulator for an origional 8011.
Spades 15/54 to the left, M in middle R to the right.
small screw on side for earth.

<a href="http://s140.photobucket.com/albums/r13/dpeters_01/?action=view&current=crystalregulator.jpg" target="_blank"><img

Good luck. most of these tractors have been modified !!

Wow Dave that is a very detailed and comprehensive description! I was impressed with your photo too.....don't tell me that you just happened to have a regulator lying around ???

Hans - if you want to keep your tractor original, continue with the regulator. If not, throw it and the original alternator in the bin and buy yourself a LUCAS type alternator. You will save yourself much heartbreak. IMHO.

I wish I'd found this earlier !!

<a href="http://s140.photobucket.com/albums/r13/dpeters_01/?action=view&current=altreg1.jpg" target="_blank"><img

Seriously though, Toms right, I have 2 with Lucas conversions and 2 with PAL. once the lucas is fitted its very rare to have any type of problem.

Hi!

I have the original regulator with the 3 terminals.

15/54
M
R

according to Dave's picture.

But the original regulator is not used in the wiring diagram or??

regards, Hans

I think it is. for R read 61.

Hi again!
Now I have managed to take picture of my alternator.

http://i292.photobucket.com/albums/mm15/elinjo_photos/IMG_1283.jpg
and (Great zoom)
http://w1.548.telia.com/~u54809175/

As you can see there are 4 terminals. Tagged From right to left
"B+" (Large spade)
noname (Large spade)
"D+" (small spade)
"+" (small spade)

My regulator looks like the picture from Dave
http://s140.photobucket.com/albums/r13/dpeters_01/?action=view&current=crystalregulator.jpg

Tagged From left to right
"15/54"
"M"
"R"

According to the wiring diagram from the workshop manual.
http://s140.photobucket.com/albums/r13/dpeters_01/?action=view&current=altreg1.jpg

There should be 4 terminals on the alternator tagged
"B+","R","M" and "B-"
BUT
mine are tagged from right to left
"B+" (Large spade)
noname written (Large spade)
"D+" (small spade)
"+" (small spade)

Which teminals on my alternator is R,M and B-?

Regards, Hans

I hate to admit it, but I've never seen an alternator with terminals quite like that. Here are 2 dreadful pics of the alternators as fitted standard in UK

<a href="http://s140.photobucket.com/albums/r13/dpeters_01/?action=view&current=crystalalt.jpg" target="_blank"><img


<a href="http://s140.photobucket.com/albums/r13/dpeters_01/?action=view&current=7245alt.jpg" target="_blank"><img


You will see in the pics the different colours of the sockets for the windings.

These 2 alternators may look terrible in the photos, but in real life they don't look too bad and they both work.

We have obviously been discussing slightly different alternators, so I cant help you any more.

Someone else may have a similar one to you and may help !!

Hans,
From your photo of your alternator I believe it is a Bosch unit with a built in regulator.
The wiring connections for this alternator are:-
"B+" (Large spade) To battery + (Large RED wire)
noname (Large spade) To battery + (Large RED wire)
"D+" (small spade) To charge light on dash
"+" (small spade) Connection for electrical noise suppression no need to connect.
The two large spades share a common connection inside the alternator you can connect the large red wire to either spade.
This 2 large & 1 small pin connection is known as a Euro plug it was widely used in the automotive industry during the 70's & 80's. (Lucas & Bosch used the Euro plug widely) Two large spade's for the alternator output were used to spread the load from the higher output alternators

Hi!
That sounds exactly like alternator.

Thanks, now I know how to wire.

Regards, Hans, Sweden

(One problem solved! On to the next)