Ford Garden Tractor Model YT16 G Need Wiring Diagram

[js9133]

Hi, I'm looking for the complete electrical schematic diagram
(electrical wiring diagram) for a Ford Model YT16G Garden Tractor
(9607431) (Dom. 1/88 to 10/88). I need a so I can troubleshoot the
wiring harness. Lawn Tractor sick and needs help. Any help would be
appreciated.

 

[Adrian C]

Dave Plowman (News) wrote:

Just curious what use a constant current constant voltage bench supply
would be? Or does it mean *either* constant voltage or constant current?

For bench supplies, it's either, so I put a slash in my answer between
CC/CV.

It's a supply where you wind up the voltage to what you want and then
you set the current limiter to what you consider a safe maximum to the
load circuit you are fooling with.

If the load demands more current than your limit, the supply will reduce
the voltage to maintain the great law of Ohm. So essentially it will be
delivering constant current (CC) to the load and flashing warning lights
which will tell the user something is wrong with the circuit.

(Though in some circumstances ignoring the warning may be useful for
things like charging nicad cells which should be charged using the
constant regulated current.)

If you have no current limiter in force, then the supply works in
constant voltage (CV) up to the point of smoke (or blown internal fuse
or some other limiter) for excessive current delivered.

The following explains using a supply from HP for the point of view of
an EE student.

Basics of Power Supplies -
Use of the HP E3631A Programmable Power Supply
<http://www.ese.upenn.edu/rca/instruments/HPpower/PS3631A.html>

--
Adrian C

 

[James Sweet]

Brian wrote:

James Sweet wrote:


They can hold up to a tremendous amount of abuse, but deep discharging
will kill them just about every time.

And the result is ...

They wouldn't even start to take a charge. My trickle charge reported
both were fully charged, even though they were totally dead. Even a
couple of hours on each wouldn't make them budge.

So, time for some new batteries. The originals were made in China. Will
hopefully remember to post whether the new batteries fixed the unit.

-Brian

P.S. There are four small-matchbox size black boxes on the unit's PCB.
I think they are relays. My guess would be that the batteries must
have some juice to keep one of these relays closed -- and that relay
admits line voltage to the entire device. Would explain the total
non-response from the UPS when plugged in with dead batteries.

You can hook up just about any lead-acid battery of the correct voltage
for testing, should be fine to jumper it to your car battery to see if
it powers up, mind the polarity though.

 

[Dave Foreman]

On Thu, 1 May 2008 21:58:34 -0700 (PDT), js9133 <js9133@aol.com>
wrote:

Hi, I'm looking for the complete electrical schematic diagram
(electrical wiring diagram) for a Ford Model YT16G Garden Tractor
(9607431) (Dom. 1/88 to 10/88). I need a so I can troubleshoot the
wiring harness. Lawn Tractor sick and needs help. Any help would be
appreciated.

Try on the alt.fan.tractor news group.
Dave Foreman