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RE: (ET) Help
- Subject: RE: (ET) Help
- From: "Elie, Larry (L.D.)" <lelie ford com>
- Date: Mon, 25 Jun 2001 15:49:01 -0400
- Hop-count: 1
- Sender: owner-elec-trak cosmos phy tufts edu
I've been on vacation, and although I have read many good suggestions,
I would like to add one.
First off, 39V is too low. 39 is good for mowing 15 minutes.
Second, SEVERAL of the chargers I have got charge to (drum roll!) 39V!
Why? Very leaky capacitor on the charger. To test this theory without
cost or obligation, lift the charger cover (disconnect switch to OPEN
please) and pull one of the 'fast-tabs' (push connectors) off the cap with
pliers and wrap it with a few turns of electric tape. Replace the cover.
Charge for several hours. If you have 42V or so the electrolytic was very
leaky. Fixing it will use less power from your utility. Not fixing it
cost you nothing but charging time (i.e., leave the cap disconnected...).
The cap is there to try and match the phase of the current and voltage on
110V side. It's much like a 'motor-run' cap on a electric motor.
From: ThompsonG DFO-MPO GC CA [mailto:ThompsonG DFO-MPO GC CA]
Sent: Monday, June 18, 2001 10:54 AM
To: elec-trak cosmos phy tufts edu
Subject: (ET) Help
> I worked all last night on the tractor and I think I've got big
> Hopefully, you can steer me in the right direction or a least
> doing something really dump.
> Here What I've got so far.
> 1.) The Power level show Green when I turn on the Main Power
> checked the voltage with a meter and I have 36V
> 2) When I turn on the switch power, and the key, activate the
switch, Both Relays 2RTN and 1RTN
> close with a nice solid click
> Then it get's bad
> When I push the seat switch the Power Use meter goes into the
> Then when I move the speed controller to forward or reverse 2RTN
OPENS and > the Power Use meter goes even further into the Yellow.
> I tried this with the motor armature power wires (the big heavy
> on the brass studs) disconnected from the motor and got the same
> But if I disconnect the breaker leads plug and the Centripetal
> the tractor is dead.
> I also checked each of the diodes with my OHM meter and they seem
to be OK,
> 0 ohms in one direction Infinite resistance in the other.
> I am starting to think it' s a motor problem, but I am open to
> suggestions at this point.
> Any Ideas
> Thanks Again
> Geof Thompson B. Sc.
> Data Management Engineer
> Canadian Hydrographic Service
> Central and Arctic Region
> 867 Lakeshore Road
> Burlington, Ontario
> Canada. L7R 4A6
> Phone (905) 336-4698
> Fax (905) 336-8916
> E-mail Thompsong dfo-mpo gc ca <mailto:Thompsong dfo-mpo gc ca>
Geof Thompson B. Sc.
Data Management Engineer
Canadian Hydrographic Service
Central and Arctic Region
867 Lakeshore Road
Canada. L7R 4A6
Phone (905) 336-4698
Fax (905) 336-8916
E-mail Thompsong dfo-mpo gc ca