Re: (ET) Vacuum running, man does it draw power.

For comparison, I filled my new cart a couple times yesterday (I'm en route to Orlando today) running the deck and blower simultaneously for around an hour all told. I have fairly new, plain jane lead acid batteries, and drew the pack down by less than half according to my 40+ year old gauges.

It does pull the current gauge down pretty hard as I'm driving around through 2 foot deep drifted leaves, but I haven't ever measured it with a real meter.

I have extra heavy wiring on the deck and I use the stock I-5 rear fender Anderson connector power takeoff, which is also pretty thick wire. (Don't know if that has any effect on power draw, I just like thick wires for DC lines and high vibration environments.)

--Charlie

On Thu, Oct 31, 2019, 12:23 PM Chris Zach <cz alembic crystel com> wrote:

No and yes. I replaced the bearings and rebuilt the motor it turns with 18 volts and 2 Amps current. So pretty low drag.

On October 31, 2019 10:08:20 AM EDT, Rob Brockway <GEtractor yahoo com> wrote:

Is there any excessive vibration? Does the impeller turn feely?
Rob

Sent from my iPhone

On Oct 30, 2019, at 10:57 PM, Chris Zach <cz alembic crystel com> wrote:

Yep. The bag works in the trailer with the front panel of the trailer removed. It does cut pressure, but on the other hand it sucks up dirt, leaves, trees, everything and doesn't blow the wreckage everywhere. It will do for this season, but I do want to see your get-up.

Emptying the bag releases a massive amount of highly ground up leaves. Much finer mulch than the Craftsman. Now I'd like to find 20 feet of cheaper hose and use the vacuum to clear leaves out of beds and such....

On 10/30/2019 11:58 AM, Charlie wrote:
Chris, are you still heavily restricting the output air flow? Maybe that would explain your crazy current draw. I run the noggler for a couple of hours with a stock lead acid battery pack, but I have a 5'x3' panel of 1/4" steel hardware cloth letting the air out of the top of the leaf collection cart.
Apologies for not sending the pictures yet!
--Charlie
On Mon, Oct 28, 2019 at 8:35 PM Rob Brockway via Elec-trak <elec-trak cosmos phy tufts edu <mailto:elec-trak cosmos phy tufts edu>> wrote:
I have an elec-trak vacuum blower I bought new from Bill Gunn years
ago. Mine does not draw a lot of amps, perhaps 15-22 amps. I can
check the actual amount next weekend if you would like. Reduces my
range a notably but nothing dramatic.
On Monday, October 28, 2019, 11:41:47 AM EDT, Ken Olum
<kdo cosmos phy tufts edu <mailto:kdo cosmos phy tufts edu>> wrote:
From: "David Roden" <etpost drmm net <mailto:etpost drmm net>>
Date: Sun, 27 Oct 2019 20:41:43 -0400
If you're running a 90ah battery flat in 30 mins, your load is
180 amps!
That's HUGE. Lead batteries do NOT like that kind of load.
A similar problem with snow blowing is why I have AGM batteries in my
Ox. But there are some other issues. Is an Elec-Trak wired with AWG 6
wire? I don't remember. AWG 6 is rated for 75A (with 90C insulation
and 20C ambient). And isn't there a 90A circuit breaker? Leaf
vacuuming is much more of a continuous activity than snowblowing and you
do it at higher outside temperatures, so overheating seems like an
issue.
Ken
Elec-trak mailing list
Elec-trak cosmos phy tufts edu <mailto: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 <mailto: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

--
Sent from my Android device with K-9 Mail. Please excuse my brevity.

_______________________________________________
Elec-trak mailing list
Elec-trak cosmos phy tufts edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak