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(ET) HC-05 Diagnosed
- Subject: (ET) HC-05 Diagnosed
- From: "Darryl McMahon" <darryl econogics com>
- Date: Mon, 25 Jun 2001 08:05:41 -0400
- Reply-to: darryl econogics com
- Sender: owner-elec-trak cosmos phy tufts edu
Well, it has taken a while to get back to the jammed cultivator.
Today, the surgery was done. Perhaps autopsy would be a better term.
She's dead Jim, as Bones would say. At least, one critical part is.
This is clearly a unit that earned it's keep long before I got it. The
chips in the tines, and the apparent degree of brush wear show the signs
use. Insulation on the brush lead wires has melted at some point.
culprit was unmasked after I got the gear housing open.
The worm gear that drives the axle for the tines was so worn and deformed
literally was jamming the spur gear by itself. This should not have been
lubrication issue, there was plenty of grease in that part of the housing
took it apart, the worm gear was nicely coated, and no signs of heat
marking on the
metals. The metal on the worm gear is relatively soft, based on how
easily it wore
down under a file.
Hopefully I can find time on Thursday to call Bill Gunn and see about
While I am disappointed it was not something I could fix, I have to (once
admire the simplicity of the Elec-Trak design, which is why these units
operating 30 years after they were made.
I took some photos, and once I get them developed, I will scan them and
on my website.
My thanks to all that sent advice and suggestions. Turns out I was being
mostly by a left-hand thread. One of the hubs for the tines is attached
axle with a left-hand thread. Makes sense now that I think about the
the unit, but it had me stymied the last time I was trying to take it
Darryl McMahon 48 Tarquin Crescent,
Econogics, Inc. Nepean, Ontario K2H 8J8
It's your planet. Voice: (613)784-0655
If you won't look Fax: (613)828-3199
after it, who will? http://www.econogics.com/