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(ET) RE: Elec-trak Digest, Vol 2, Issue 58
Another hint for trannie rebuild
Pour the crankcase oil into a clean white pail with a good strong magenet
in the bottom. When done draining pull the magenet out and look for metal
bits and pieces. You will be amazed at the small chips/teeth/etc you'll
find! Close inspection will narrow your search to the worn/broken
gear/lever/etc.
Good luck.
Bob
-----Original Message-----
From: elec-trak-request cosmos phy tufts edu
[mailto:elec-trak-request cosmos phy tufts edu]
Sent: Thursday, February 12, 2004 10:59 AM
To: elec-trak cosmos phy tufts edu
Subject: Elec-trak Digest, Vol 2, Issue 58
Send Elec-trak mailing list submissions to
elec-trak cosmos phy tufts edu
To subscribe or unsubscribe via the World Wide Web, visit
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
or, via email, send a message with subject or body 'help' to
elec-trak-request cosmos phy tufts edu
You can reach the person managing the list at
elec-trak-owner cosmos phy tufts edu
When replying, please edit your Subject line so it is more specific
than "Re: Contents of Elec-trak digest..."
Today's Topics:
1. RE: batteries and charging (Chapin, Tim)
2. Tranny repairs (ThompsonG DFO-MPO GC CA)
3. E-20 for sale/trade: A Great Deal to be had
(Klein Robert W NPRI)
----------------------------------------------------------------------
Message: 1
Date: Thu, 12 Feb 2004 10:47:48 -0500
From: "Chapin, Tim" <tchapin umich edu>
Subject: RE: (ET) batteries and charging
To: "'David Roden (Akron OH USA)'" <roden ald net>,
elec-trak cosmos phy tufts edu
Message-ID:
<CC502C8E2CCE4C48A476E37E984BB111084688A9 maismx mais bf umich edu>
Content-Type: text/plain
I have purchased, but not installed yet, 36 volt head lights and dash
lights. They are available at fork truck parts places. I don't have the
bulbs with me at work but can look them up if interested. Then all you do
is tap off the pack at 36 volts instead of 12. Because I have an e12m (no
front lift), the 36 volt bulbs will solve my balance problems.
Someone in the last week or so talked about a 12/24 volt electric wench
replacement. What would happen if you just jumped the volts to 36 on
that.
It should move real fast. Any worries on burning it up?
-----Original Message-----
From: elec-trak-bounces cosmos phy tufts edu
[mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of David Roden
(Akron OH USA)
Sent: Thursday, February 12, 2004 10:31 AM
To: elec-trak cosmos phy tufts edu
Subject: Re: (ET) batteries and charging
On 12 Feb 2004 at 7:08, jim donovan wrote:
> it is my
> understanding that the charger that is on the
> elec-traks has an output that best serves the flooded
> batteries. Is that correct?
"Best serves" doesn't quite say it. The GE charger will murder your
expensive
VRR batteries in a few months.
> What do you sealed/gel
> type guys use to charge your pack?
I use three 12 volt automatic (cycle-dropping type) chargers. If I had 6
volt
modules instead of 12 volt, I might go to six 6-volt chargers.
You really need to charge at the module level unless you get rid of the
battery taps for the lift and lights. The taps unbalance the pack
something
awful. The GE charger deals with that by overcharging between one and
four
other batteries, in order to make sure the lift and/or light batteries have
a
full charge. VRR batteries just can't take that amount of overcharge.
(It's
not really good for flooded batteries either, but they're sturdier in this
regard.)
One of my long-term aims is to replace those battery taps with a DC:DC
converter.
David Roden - Akron, Ohio, USA
1991 Solectria Force 144vac
1991 Ford Escort Green/EV 128vdc
1970 GE Elec-trak E15 36vdc
1974 Avco New Idea 36vdc
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Advertising (n): the science of arresting the human
intelligence for long enough to get money from it.
-- Stephen Leacock
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
_______________________________________________
Elec-trak mailing list
Elec-trak cosmos phy tufts edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
------------------------------
Message: 2
Date: Thu, 12 Feb 2004 10:51:00 -0500
From: ThompsonG DFO-MPO GC CA
Subject: (ET) Tranny repairs
To: elec-trak cosmos5 phy tufts edu
Message-ID:
<94A767870DE8D311BD3200508B8B9BD10283DF82 msgcabur03 bur dfo ca>
Content-Type: text/plain; charset="iso-8859-1"
Hi
I'll pass this tip along it from one the real old timers in the
Wheelhorse group, They are always playing and fixing transmissions.
Whenever you remove a transmission for repairs.
1.) Drain the oil.
2.) While it out refill it with kerosene
3.) Then for the next week every time you walk by it give the drive
pully ½ a turn.
When you get to fixing it, drain and crack it. Remove any residual
crud with a clean cloth, and you are make repairs to the nice clean
workings.
This works and it is way better than dealing with freshly drained
tranny there just no dirty oil to deal with.
Regards
Geof Thompson B.Sc., C.L.S.
905-336-4698 | facsimile / télécopieur 905-336-8916
Thompsong dfo-mpo gc ca <mailto:Thompsong dfp-mpo gc ca >
Technical Services | Canadian Hydrographic Service | Services
Technique, Service hydrographique du Canada
Central & Arctic Region | Région Centrale et de l'Arctique
Fisheries and Oceans Canada | 867 Lakeshore Rd, Burlington,
(Ontario) L7R 4A6
Pêches et Océans Canada | 867 chemin Lakeshore, Burlington
(Ontario)
L7R 4A6
Government of Canada | Gouvernement du Canada
------------------------------
Message: 3
Date: Thu, 12 Feb 2004 10:57:52 -0500
From: Klein Robert W NPRI <KleinRW Npt NUWC Navy Mil>
Subject: (ET) E-20 for sale/trade: A Great Deal to be had
To: "'elec-trak cosmos phy tufts edu'"
<elec-trak cosmos phy tufts edu>
Message-ID:
<A506359028CAD21191C10008C75D895C073D430B NPRI54EXC14 NPT NUWC
NAVY MIL>
Content-Type: text/plain; charset=iso-8859-1
Spring is coming and I've got to get rid of some of my projects. I have a
Westinghouse E-30 in good (non-major rusted) condition that I've got to
move out of my shop. It comes without batteries but was told by the
previous owner was running when parked in their garage and left for two
years killing the batteries. I know it will need a new steering wheel
shaft with lower pinion gear as this one looks like it had the teeth weld
repaired and steering is herky-jerky. Tires, motor, trannie, and
sheetmetal are in good condition. Controller circuit condition unknown
but expected OK. The front lift has replaced the webbing with a
galvanized cable. Does not have any accessories... just the tractor. Seat
is in good condition (no tears). Keys/dash gages, switches all there as
well as quite a few spare parts, solinoids, brackets, etc. I'm posting
this here because I know it will go to a good home. All I'm looking for
is either $200 cash or a cash/trade for a working electrak welder
and/or cultivator accessory or a robust mini bike (rolling chassis)(engine
not important as I plan on going electric). The tractor is located in
Charlestown, RI and will have to be picked up. I can deliver a short
distance if compensated for travel expenses. If interested contact me off
line at kleinrw npt nuwc navy mil
Bob Klein (with too many projects!)
-----Original Message-----
From: elec-trak-request cosmos phy tufts edu
[mailto:elec-trak-request cosmos phy tufts edu]
Sent: Thursday, February 12, 2004 10:44 AM
To: elec-trak cosmos phy tufts edu
Subject: Elec-trak Digest, Vol 2, Issue 57
Send Elec-trak mailing list submissions to
elec-trak cosmos phy tufts edu
To subscribe or unsubscribe via the World Wide Web, visit
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
or, via email, send a message with subject or body 'help' to
elec-trak-request cosmos phy tufts edu
You can reach the person managing the list at
elec-trak-owner cosmos phy tufts edu
When replying, please edit your Subject line so it is more specific
than "Re: Contents of Elec-trak digest..."
Today's Topics:
1. Re: motor on E12S... (Bob Murcek)
2. Re: batteries and charging (David Roden (Akron OH USA))
3. Re: motor on E12S... (steves)
4. Re: motor on E12S... (Christopher Zach)
----------------------------------------------------------------------
Message: 1
Date: Thu, 12 Feb 2004 10:17:03 -0500
From: "Bob Murcek" <rmurcek geisinger edu>
Subject: Re: (ET) motor on E12S...
To: <elec-trak cosmos phy tufts edu>
Message-ID: <s02b52ab 012 GHSGWIANW2 GEISINGER EDU>
Content-Type: text/plain; charset="us-ascii"
Just a clarification: The Alltrax controller may actually reverse the
armature current to reverse, which would be fine, you'd just always leave
the field energized in the forward polarity.
>>> Dave & Debbie Barden <daveb seanet com> 2/12/2004 7:10:31 AM >>>
Thanks. It is looking more and more like the Alltrac controller will work
with
the E12S motor. The E12 does use field switching and my machine continues
to
suffer welded contacts and blown fuses whenever the motor is stopped to
change
directions and the field collapses sending a surge of current back up the
line,
thus my concern with the field losing current. However I understand from
Steve
Richardson that their controller does monitor have over current
protection. I
am verifying also with him that the controller will switch the field for
forward reverse.
thanks again for all your responses and increasing my understanding of
motors.
dave
seattle
> The field current requirements for the motors in question is for
> all
> intents and purposes identical. In all the twenty some years that I have
> operated either the late model I-5 , or the earlier model eight speed
> E-20,
> I have yet to encounter a situation where field voltage was lost.
> Since I do not have any information on the solid state controller
> you
> are planning on utilizing, I can't offer an opinion on whether or not it
> offers armature overcurrent protection.
> I do feel that the chances of a loss of field incident are slight.
> Few
> people ask their tractors to do what I ask of mine. If anyone should
> have a
> meltdown, it should be me.
> If your tractor uses field switching for reversing, instead of
> armature
> reversing, I would recommend changing it over. It's not that bad of a
> job,
> especially if you have the Manual, and an organ donor tractor.
>
> ----- Original Message -----
> From: "Dave & Debbie Barden" <daveb seanet com>
> To: <rjkanary nauticom net>; <ssawtelle fcc net>;
> <elec-trak cosmos phy tufts edu>
> Sent: Tuesday, February 10, 2004 10:18 AM
> Subject: Re: (ET) motor on E12S...
>
>
> > not being too electronically literate I need some help getting from A
> > to
> C, A
> > being my motor has a shunt which supplies the field. To get to C I
> > have
> to be
> > sure that the sep-X controller will work with that kind of field. One
> > of
> > Richardson's emails talked about their needing to modify the
> > controller to
> work
> > with small current of the E15's field windings 3 amps instead of 30 I
> think he
> > said. Judging from the small wires going to the field of the E12S
> > motor
> and
> > the fact that it uses a shunt I would guess that the current would be
> pretty
> > low as well??? And if steve is correct that the E12S uses an E15 like
> motor it
> > should work. What I am really worried about is what will happen if my
> field
> > loses current (blown fuse or fried relay) will the armature still be
> getting
> > current from the controller???
> >
> > thanks,
> > dave
> >
> >
> > > The only wound field traction motor that does not possess the
> > > extra
> > > winding is the one used in the E-12 CA through HA models . This
> > > category
> > > includes the E-12 M.
> > >
> > > Note that in the Homeowner's Service Manual, the E-12 S
> > > armature
> > > terminals are identified as A1 and S2, indicating the presence of a
> 'shunt'
> > > winding.
> > >
> > > ----- Original Message -----
> > > From: "steves" <ssawtelle fcc net>
> > > To: <elec-trak cosmos phy tufts edu>
> > > Sent: Tuesday, February 10, 2004 5:07 PM
> > > Subject: Re: (ET) motor on E12S...
> > >
> > >
> > > > As I understand it - The E12S is basically an E12 with an E15
> > > > motor.
> The
> > > > wiring is different than an E12. I would think, based on this, it
> would
> > > > work. Someone correct if I'm wrong...
> > > >
> > > > - SteveS
> > > >
> > > > ----- Original Message -----
> > > > From: "Dave & Debbie Barden" <daveb seanet com>
> > > > To: <plitch attglobal net>; <thumphrey mynra com>; <>
> > > > Sent: Tuesday, February 10, 2004 8:38 AM
> > > > Subject: (ET) motor on E12S...
> > > >
> > > >
> > > > > I would really like to get the new Alltrax controller for my
> > > > > E12S.
> But
> > > > the
> > > > > discussions on this list have all centered around the E15 and
> > > > > E20.
> My
> > > > ultimte
> > > > > question is will the alltrax work with the E12S motor? Also
> > > > > what
> does
> > > > the S
> > > > > in E12S signify? I thought I read that the E12S is a "compound"
> motor
> > > > > aka "shunt motor" right/wrong???
> > > > >
> > > > > Bottom line, will the sep-X controller work on an E12S?
> > > > > thoughts??
> > > > >
> > > > > thanks,
> > > > > dave
> > > > >
> > > > >
> > > > > _______________________________________________
> > > > > Elec-trak mailing list
> > > > > Elec-trak cosmos phy tufts edu
> > > > > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > Elec-trak mailing list
> > > > Elec-trak cosmos phy tufts edu
> > > > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > > >
> > >
> > >
> > > _______________________________________________
> > > Elec-trak mailing list
> > > Elec-trak cosmos phy tufts edu
> > > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > >
> >
> >
> >
> >
> >
>
>
_______________________________________________
Elec-trak mailing list
Elec-trak cosmos phy tufts edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
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------------------------------
Message: 2
Date: Thu, 12 Feb 2004 10:30:49 -0500
From: "David Roden (Akron OH USA)" <roden ald net>
Subject: Re: (ET) batteries and charging
To: elec-trak cosmos phy tufts edu
Message-ID: <402B55D9.6739.AE113@localhost>
Content-Type: text/plain; charset=US-ASCII
On 12 Feb 2004 at 7:08, jim donovan wrote:
> it is my
> understanding that the charger that is on the
> elec-traks has an output that best serves the flooded
> batteries. Is that correct?
"Best serves" doesn't quite say it. The GE charger will murder your
expensive
VRR batteries in a few months.
> What do you sealed/gel
> type guys use to charge your pack?
I use three 12 volt automatic (cycle-dropping type) chargers. If I had 6
volt
modules instead of 12 volt, I might go to six 6-volt chargers.
You really need to charge at the module level unless you get rid of the
battery taps for the lift and lights. The taps unbalance the pack
something
awful. The GE charger deals with that by overcharging between one and
four
other batteries, in order to make sure the lift and/or light batteries
have a
full charge. VRR batteries just can't take that amount of overcharge.
(It's
not really good for flooded batteries either, but they're sturdier in this
regard.)
One of my long-term aims is to replace those battery taps with a DC:DC
converter.
David Roden - Akron, Ohio, USA
1991 Solectria Force 144vac
1991 Ford Escort Green/EV 128vdc
1970 GE Elec-trak E15 36vdc
1974 Avco New Idea 36vdc
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Advertising (n): the science of arresting the human
intelligence for long enough to get money from it.
-- Stephen Leacock
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
------------------------------
Message: 3
Date: Thu, 12 Feb 2004 10:39:08 -0500
From: "steves" <ssawtelle fcc net>
Subject: Re: (ET) motor on E12S...
To: <elec-trak cosmos phy tufts edu>
Message-ID: <007f01c3f17e$5abf84e0$1a01a8c0@dhhm0y01>
Content-Type: text/plain; charset="iso-8859-1"
I'm remembering more about the E12S...
It is the same wiring as the E15 except it doesn't have the field weaking
circuit (the extra FWD speeds). It does reverse the field and that relay is
easy to fry. BTW I notice I don't have to be so gentle with FWD/REV with
the
E20 (found out by accident). I still do seem to recall the E12S uses an E15
motor.
Let us know how the controller works! I have another E12S in sad shape - it
would be nice to simplify the wiring and get it running.
- SteveS
----- Original Message -----
From: "Dave & Debbie Barden" <daveb seanet com>
To: <rjkanary nauticom net>; <ssawtelle fcc net>; <>; <daveb seanet com>
Sent: Thursday, February 12, 2004 2:10 AM
Subject: Re: (ET) motor on E12S...
> Thanks. It is looking more and more like the Alltrac controller will
> work
with
> the E12S motor. The E12 does use field switching and my machine
> continues
to
> suffer welded contacts and blown fuses whenever the motor is stopped to
change
> directions and the field collapses sending a surge of current back up the
line,
> thus my concern with the field losing current. However I understand from
Steve
> Richardson that their controller does monitor have over current
protection. I
> am verifying also with him that the controller will switch the field for
> forward reverse.
>
> thanks again for all your responses and increasing my understanding of
motors.
>
> dave
> seattle
>
> > The field current requirements for the motors in question is for
all
> > intents and purposes identical. In all the twenty some years that I
> > have
> > operated either the late model I-5 , or the earlier model eight speed
E-20,
> > I have yet to encounter a situation where field voltage was lost.
> > Since I do not have any information on the solid state controller
you
> > are planning on utilizing, I can't offer an opinion on whether or not
> > it
> > offers armature overcurrent protection.
> > I do feel that the chances of a loss of field incident are slight.
Few
> > people ask their tractors to do what I ask of mine. If anyone should
have a
> > meltdown, it should be me.
> > If your tractor uses field switching for reversing, instead of
armature
> > reversing, I would recommend changing it over. It's not that bad of a
job,
> > especially if you have the Manual, and an organ donor tractor.
> >
> > ----- Original Message -----
> > From: "Dave & Debbie Barden" <daveb seanet com>
> > To: <rjkanary nauticom net>; <ssawtelle fcc net>;
> > <elec-trak cosmos phy tufts edu>
> > Sent: Tuesday, February 10, 2004 10:18 AM
> > Subject: Re: (ET) motor on E12S...
> >
> >
> > > not being too electronically literate I need some help getting from A
to
> > C, A
> > > being my motor has a shunt which supplies the field. To get to C I
have
> > to be
> > > sure that the sep-X controller will work with that kind of field.
> > > One
of
> > > Richardson's emails talked about their needing to modify the
controller to
> > work
> > > with small current of the E15's field windings 3 amps instead of 30 I
> > think he
> > > said. Judging from the small wires going to the field of the E12S
motor
> > and
> > > the fact that it uses a shunt I would guess that the current would be
> > pretty
> > > low as well??? And if steve is correct that the E12S uses an E15
> > > like
> > motor it
> > > should work. What I am really worried about is what will happen if
> > > my
> > field
> > > loses current (blown fuse or fried relay) will the armature still be
> > getting
> > > current from the controller???
> > >
> > > thanks,
> > > dave
> > >
> > >
> > > > The only wound field traction motor that does not possess the
extra
> > > > winding is the one used in the E-12 CA through HA models . This
category
> > > > includes the E-12 M.
> > > >
> > > > Note that in the Homeowner's Service Manual, the E-12 S
armature
> > > > terminals are identified as A1 and S2, indicating the presence of a
> > 'shunt'
> > > > winding.
> > > >
> > > > ----- Original Message -----
> > > > From: "steves" <ssawtelle fcc net>
> > > > To: <elec-trak cosmos phy tufts edu>
> > > > Sent: Tuesday, February 10, 2004 5:07 PM
> > > > Subject: Re: (ET) motor on E12S...
> > > >
> > > >
> > > > > As I understand it - The E12S is basically an E12 with an E15
motor.
> > The
> > > > > wiring is different than an E12. I would think, based on this,
> > > > > it
> > would
> > > > > work. Someone correct if I'm wrong...
> > > > >
> > > > > - SteveS
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Dave & Debbie Barden" <daveb seanet com>
> > > > > To: <plitch attglobal net>; <thumphrey mynra com>; <>
> > > > > Sent: Tuesday, February 10, 2004 8:38 AM
> > > > > Subject: (ET) motor on E12S...
> > > > >
> > > > >
> > > > > > I would really like to get the new Alltrax controller for my
E12S.
> > But
> > > > > the
> > > > > > discussions on this list have all centered around the E15 and
E20.
> > My
> > > > > ultimte
> > > > > > question is will the alltrax work with the E12S motor? Also
what
> > does
> > > > > the S
> > > > > > in E12S signify? I thought I read that the E12S is a
> > > > > > "compound"
> > motor
> > > > > > aka "shunt motor" right/wrong???
> > > > > >
> > > > > > Bottom line, will the sep-X controller work on an E12S?
thoughts??
> > > > > >
> > > > > > thanks,
> > > > > > dave
> > > > > >
> > > > > >
> > > > > > _______________________________________________
> > > > > > Elec-trak mailing list
> > > > > > Elec-trak cosmos phy tufts edu
> > > > > > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > _______________________________________________
> > > > > Elec-trak mailing list
> > > > > Elec-trak cosmos phy tufts edu
> > > > > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > Elec-trak mailing list
> > > > Elec-trak cosmos phy tufts edu
> > > > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > > >
> > >
> > >
> > >
> > >
> > >
> >
> >
>
>
>
>
>
>
------------------------------
Message: 4
Date: Thu, 12 Feb 2004 10:41:50 -0500
From: Christopher Zach <czach computer org>
Subject: Re: (ET) motor on E12S...
To: steves <ssawtelle fcc net>
Cc: elec-trak cosmos phy tufts edu
Message-ID: <402B9EBE 5030104 computer org>
Content-Type: text/plain; charset=us-ascii; format=flowed
Well, true. The E20 does use a set of nice big contactors as opposed to
an itty-bitty relay.
Has anyone thought about replacing the relay with a set of contactors to
reverse the field? I'm not saying duplicate the E20's system, but just
use something a lot bigger than a relay point to switch the field
polarity (and take the spikes)
Thoughts?
Chris
steves wrote:
> I'm remembering more about the E12S...
>
> It is the same wiring as the E15 except it doesn't have the field weaking
> circuit (the extra FWD speeds). It does reverse the field and that relay
> is
> easy to fry. BTW I notice I don't have to be so gentle with FWD/REV with
> the
> E20 (found out by accident). I still do seem to recall the E12S uses an
> E15
> motor.
>
> Let us know how the controller works! I have another E12S in sad shape -
> it
> would be nice to simplify the wiring and get it running.
>
> - SteveS
>
>
> ----- Original Message -----
> From: "Dave & Debbie Barden" <daveb seanet com>
> To: <rjkanary nauticom net>; <ssawtelle fcc net>; <>; <daveb seanet com>
> Sent: Thursday, February 12, 2004 2:10 AM
> Subject: Re: (ET) motor on E12S...
>
>
>
>>Thanks. It is looking more and more like the Alltrac controller will
>>work
>
> with
>
>>the E12S motor. The E12 does use field switching and my machine
>>continues
>
> to
>
>>suffer welded contacts and blown fuses whenever the motor is stopped to
>
> change
>
>>directions and the field collapses sending a surge of current back up the
>
> line,
>
>>thus my concern with the field losing current. However I understand from
>
> Steve
>
>>Richardson that their controller does monitor have over current
>
> protection. I
>
>>am verifying also with him that the controller will switch the field for
>>forward reverse.
>>
>>thanks again for all your responses and increasing my understanding of
>
> motors.
>
>>dave
>>seattle
>>
>>
>>> The field current requirements for the motors in question is for
>
> all
>
>>>intents and purposes identical. In all the twenty some years that I have
>>>operated either the late model I-5 , or the earlier model eight speed
>
> E-20,
>
>>>I have yet to encounter a situation where field voltage was lost.
>>> Since I do not have any information on the solid state controller
>
> you
>
>>>are planning on utilizing, I can't offer an opinion on whether or not it
>>>offers armature overcurrent protection.
>>> I do feel that the chances of a loss of field incident are slight.
>
> Few
>
>>>people ask their tractors to do what I ask of mine. If anyone should
>
> have a
>
>>>meltdown, it should be me.
>>> If your tractor uses field switching for reversing, instead of
>
> armature
>
>>>reversing, I would recommend changing it over. It's not that bad of a
>
> job,
>
>>>especially if you have the Manual, and an organ donor tractor.
>>>
>>>----- Original Message -----
>>>From: "Dave & Debbie Barden" <daveb seanet com>
>>>To: <rjkanary nauticom net>; <ssawtelle fcc net>;
>>><elec-trak cosmos phy tufts edu>
>>>Sent: Tuesday, February 10, 2004 10:18 AM
>>>Subject: Re: (ET) motor on E12S...
>>>
>>>
>>>
>>>>not being too electronically literate I need some help getting from A
>
> to
>
>>>C, A
>>>
>>>>being my motor has a shunt which supplies the field. To get to C I
>
> have
>
>>>to be
>>>
>>>>sure that the sep-X controller will work with that kind of field. One
>
> of
>
>>>>Richardson's emails talked about their needing to modify the
>
> controller to
>
>>>work
>>>
>>>>with small current of the E15's field windings 3 amps instead of 30 I
>>>
>>>think he
>>>
>>>>said. Judging from the small wires going to the field of the E12S
>
> motor
>
>>>and
>>>
>>>>the fact that it uses a shunt I would guess that the current would be
>>>
>>>pretty
>>>
>>>>low as well??? And if steve is correct that the E12S uses an E15 like
>>>
>>>motor it
>>>
>>>>should work. What I am really worried about is what will happen if my
>>>
>>>field
>>>
>>>>loses current (blown fuse or fried relay) will the armature still be
>>>
>>>getting
>>>
>>>>current from the controller???
>>>>
>>>>thanks,
>>>>dave
>>>>
>>>>
>>>>
>>>>> The only wound field traction motor that does not possess the
>
> extra
>
>>>>>winding is the one used in the E-12 CA through HA models . This
>
> category
>
>>>>>includes the E-12 M.
>>>>>
>>>>> Note that in the Homeowner's Service Manual, the E-12 S
>
> armature
>
>>>>>terminals are identified as A1 and S2, indicating the presence of a
>>>
>>>'shunt'
>>>
>>>>>winding.
>>>>>
>>>>>----- Original Message -----
>>>>>From: "steves" <ssawtelle fcc net>
>>>>>To: <elec-trak cosmos phy tufts edu>
>>>>>Sent: Tuesday, February 10, 2004 5:07 PM
>>>>>Subject: Re: (ET) motor on E12S...
>>>>>
>>>>>
>>>>>
>>>>>>As I understand it - The E12S is basically an E12 with an E15
>
> motor.
>
>>>The
>>>
>>>>>>wiring is different than an E12. I would think, based on this, it
>>>
>>>would
>>>
>>>>>>work. Someone correct if I'm wrong...
>>>>>>
>>>>>>- SteveS
>>>>>>
>>>>>>----- Original Message -----
>>>>>>From: "Dave & Debbie Barden" <daveb seanet com>
>>>>>>To: <plitch attglobal net>; <thumphrey mynra com>; <>
>>>>>>Sent: Tuesday, February 10, 2004 8:38 AM
>>>>>>Subject: (ET) motor on E12S...
>>>>>>
>>>>>>
>>>>>>
>>>>>>>I would really like to get the new Alltrax controller for my
>
> E12S.
>
>>>But
>>>
>>>>>>the
>>>>>>
>>>>>>>discussions on this list have all centered around the E15 and
>
> E20.
>
>>>My
>>>
>>>>>>ultimte
>>>>>>
>>>>>>>question is will the alltrax work with the E12S motor? Also
>
> what
>
>>>does
>>>
>>>>>>the S
>>>>>>
>>>>>>>in E12S signify? I thought I read that the E12S is a "compound"
>>>
>>>motor
>>>
>>>>>>>aka "shunt motor" right/wrong???
>>>>>>>
>>>>>>>Bottom line, will the sep-X controller work on an E12S?
>
> thoughts??
>
>>>>>>>thanks,
>>>>>>>dave
>>>>>>>
>>>>>>>
>>>>>>>_______________________________________________
>>>>>>>Elec-trak mailing list
>>>>>>>Elec-trak cosmos phy tufts edu
>>>>>>>https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>_______________________________________________
>>>>>>Elec-trak mailing list
>>>>>>Elec-trak cosmos phy tufts edu
>>>>>>https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>>>>>>
>>>>>
>>>>>
>>>>>_______________________________________________
>>>>>Elec-trak mailing list
>>>>>Elec-trak cosmos phy tufts edu
>>>>>https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>
>>
>>
>>
>>
>
>
>
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