RE: (ET) Capacitor

["R. Barnes" <barnesr nwlink com>]

I am sure that the value of the cap in my charger was 4uF. I have an E15,
one of the earlier models. The cap was shorted when I got the tractor, so
the batteries would not charge at all. I suppose that somebody could have
changed the cap before me, but it did look original and was a GE brand cap.

Yes, make sure you use an AC motor run capacitor with a continuous duty
rating.

You say they used a larger capacitor? What size?

Rick Barnes
Aloha, OR

-----Original Message-----
From: Elie, Larry (L.D.) [mailto:lelie ford com]
Sent: Monday, November 13, 2000 8:26 AM
To: 'R. Barnes'
Subject: RE: (ET) Capacitor

Are you sure of that value?  I have found a tractor with a larger
value in it, and the value isn't on my schematic.  I asked
Bill Gunn once the rating and he said a higher number as well.
As far as the voltage, this cap only sees one side, the error
side if you will, of the primary.  The voltage is small unless
the transformer fails.

Part 2; this is an AC cap, not an electrolytic.  An AC will
literally 'wear out' and fail.  Boom.  A motor 'run' (NOT MOTOR
START!  you need a continuous duty model-- like a motor run) will
work, if the value is right.

Part 3; as I mentioned in an earlier post, if you remove one of
the leads to the cap and tape it, the charger will work fine
albeit at a higher current (i.e.; you will pay the utility more)
and still fully charge the tractor.

Larry Elie


-----Original Message-----
From: R. Barnes [mailto:barnesr nwlink com]
Sent: Monday, November 13, 2000 8:24 AM
To: Elec-Trak@Cosmos5. Phy. Tufts. Edu; Neil Dennis
Subject: RE: (ET) Capacitor


4uF 600VAC. I bought a replacement cap from ACE Hardware, in the assorted
motor capacitor box. The one I bought has a lower voltage rating (I think
350 volts), but it has been working fine for 2 years now. I used a wood
block as a spacer because the new cap was shorter.

Rick Barnes
Aloha, OR

-----Original Message-----
From: owner-elec-trak cosmos5 phy tufts edu
[mailto:owner-elec-trak cosmos5 phy tufts edu]On Behalf Of Neil Dennis
Sent: Sunday, November 12, 2000 2:21 PM
To: Elec-trak
Subject: (ET) Capacitor

Anyone know the ratings on the capacitor in the charging circuit - the
"electro-magnetic" can on the transformer loop  ?

wombat