Sender: <marv@lancaironline.net>
To:  lml@lancaironline.net
Date: Mon, 30 Sep 2013 12:57:10 -0400
Message-ID: <redirect-6496357@logan.com>
Received-SPF: pass
 receiver=logan.com; client-ip=216.33.127.83; envelope-from=troneill@charter.net
Subject: Re: [LML] Re: leaky electrical system
References: <list-6495462@logan.com>
From: Troneill <troneill@charter.net>
Content-Type: text/plain;
	charset=us-ascii
In-Reply-To: <list-6495462@logan.com>
Content-Transfer-Encoding: quoted-printable
Mime-Version: 1.0 (1.0)

Colyn,

The tester's ammeter kept reading that level as I pulled and then reset each=
 circuit breaker ... Until I got to the last CB, for the hydraulic pump. Whe=
n I pulled that CB the amp reading dropped to 0.0.

I had everything off including the hydraulic pump, when I put the ammeter in=
to the battery's plus side which feeds all circuits. The battery was leaking=
 18.7 milliamperes.=20
I think that circuit. Goes to a solenoid that closes a heavier circuit to. P=
ower the pump, so do those solenoid s commonly 'leak'?

Terrence


Sent from my iPad

On Sep 29, 2013, at 10:14 PM, Colyn Case <colyncase@earthlink.net> wrote:

> Terrence,
>=20
> I'm inferring that you saw an instantaneous current.   ...indicating you s=
ee some current when the pump is not running.  Could it be something in how y=
ou have your indicator (e.g. pump running) lights wired?
>=20
> On Sep 29, 2013, at 10:53 PM, Terrence O'Neill wrote:
>=20
> My N211AL is from kit no. 11, and has electric prop, electronic ignition, d=
ual grant rapids Tech EFIS, autopilot, flaps, navcom, GPS, transponder, inte=
rcom, and retract gear.
>=20
> My battery kept going dead, so was advised to put an ammeter on it and see=
 how much it was leaking, and then start pulling circuit breakers.
> It was leaking 18.7 milliamps.  I pulled CBs one at a time and reset them.=
  Would you believe the very last one stopped the leaking, and the ammeter w=
ent to 0.0.
> It is the CB for the hydraulic pump.
>=20
> Question:  why is that circuit leaking when the CB is in?
> The pump works fine. =20
> I have added a pressure switch to keep the gear down and the airspeed is b=
elow about 85 mph ... or to put the gear down when the airspeed drops below 8=
5k. The pump is off when the Master is off.
> Is there something in the pump circuit that allows it to bleed?
>=20
> (For now I'm adding to the Check List for Shutdown:  Hyd. Gear CB  -- out.=
)
>=20
> Any suggestions welcomed.
>=20
> Terrence
> N211AL L235/320
> About 200 hrs.
> --
> For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.htm=
l
>=20
>=20
> --
> For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.htm=
l