Not many things are still 'on' with the PD open. One of the most
common" gone to ground" components is my favorite, the lift motor.{Hint,
the lift motor is still 'on' when the PD is 'open'. } Lighting wiring,
toasted by the armature resistors, is another 'hot' item.
Think of the double contactor replacement as an occupational
therapy exercise. Increases dexterity. <G>
----- Original Message ----- From: "Chris Zach" <czach computer org>
To: "Elec-trak list" <elec-trak cosmos phy tufts edu>
Sent: Tuesday, January 25, 2005 9:42 PM
Subject: (ET) All fixed
Swapped out the contactor pair with a spare set and the tractor is
working perfectly again. I'd still like to find that other ground
fault though; any suggestions on how to track one down? The only clue
is that it's there even with the main disconnect off, and it's pretty
persistient.
Another thought: Pulling those contactors is a real 14 karat pain.
However I do like the fact that one can fix just about anything on a
contactor based elec-trak with a meter and a set of wrenches.
Chris
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