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The
only relays you would hear would be the two RTN relays, one for the traction
motor, the other for the PTO control.
Let's turn
to Page 4-18 of the HSM for details.This provides locations and wire
call-outs.
The
first thing I would check is the integrity of the FWD / REV control circuit.If
memory serves correctly switching is done on the + side of the
circuit.
With the voltmeter of your choice, secure the - lead to the corresponding
terminal on the battery pack. Secure the transaxle in Neutral, and securely
block the drive wheels. For testing purposes ONLY secure or bypass the seat RTN
switch.
After opening the control cabinet, locate Wire 14-01 (Forward) and Wire 41-01
(Reverse) . These are found on the double contactors.
You've probably already figured out what's next. <G>
Attach the + lead of the voltmeter of your choice to the wire / circuit
you wish to prove out. Operate the FWD/ REV switch and throttle until the
failure presents itself.If you observe voltage absent on Wire 41-01, you would
suspect the F/R switch or wiring. If voltage is present there suspect
the contactors.
I know, you will want to know which one. And we can figure it out. But take it
from someone that has fought this battle in cold damp garages and parking lots
more than once. If you replace just ONE, you will get to replace the OTHER in
the not too distant future.
:(
----- Original Message -----
Sent: Friday, February 22, 2008 8:31
PM
Subject: RE: (ET) Help, reverse
missing?
Yes I have the
HSM. This is my first foray into the control system of the
tractor. I have done some work on the charger and the
steering. If it is the armature reversing contactors where are
they located?
I hear a clicking when I move
it into reverse. Which to me sounds like a relay but I could be
wrong
From: RJ Kanary
[mailto:rjkanary nauticom net]
Sent: Friday, February 22, 2008 8:06
PM
To: Banks, Michael J.;
elec-trak cosmos phy tufts edu
Subject: Re: (ET) Help, reverse
missing?
If you hear contactor action, and have no Reverse, I would suspect the
armature reversing contactors.Sometimes the copper contacts will recede into
the nylon bushings that insulate them from the contactor's metal
housing.
Do you have a Homeowner's Service Manual ?
----- Original
Message -----
Sent: Friday, February
22, 2008 6:56 PM
Subject: RE: (ET) Help,
reverse missing?
Its
an E12 HA.
From: RJ Kanary
[mailto:rjkanary nauticom net]
Sent: Friday, February 22, 2008
6:12 PM
To: Banks, Michael J.; elec-trak cosmos phy tufts edu
Subject:
Re: (ET) Help, reverse missing?
What flavor of E-12? E-12 'S' AA & BA, {Ones most likely to suffer
this malady} , the E-12 CA to HA[Includes E-12 M .], or the E-12 JA
?
That
information will help me help you. :)
----- Original
Message -----
Sent: Friday,
February 22, 2008 4:49 PM
Subject: (ET) Help,
reverse missing?
I was using my E12 with a 36? snowblower to clear our
driveway this afternoon. I had about 10sqft left to clear and
reverse stopped working.
All the forward speeds worked fine.
There was plenty of charge. I could hear what sounded
like a relay clunking when I moved the lever to the reverse.
But no motion, and the fuel gauge/usage meters didn?t move.
So I kept going from off to reverse, off to reverse
until I got it to move backwards. Coincidently one of
the chains had fallen off the rear tire. So I backed it into
the garage and put the chain on. I was going to just put
it away but I tested reverse a couple of times in the garage and it seemed
to work. So I went back out. As soon
as I needed reverse it wouldn?t work again.
This time I kept flicking the switch until it went into
reverse and parked it in the garage.
Once it was in the garage I put the gear into neutral
and tested.
Forward speeds work
Reverse doesn?t (mostly)
How do I fix this, or where do I begin my
search?
Thanks.
Mike
Colchester, CT
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