Kinze Grain Carts Rev. 7/14 - Manual (Page 35)

TM
Grain Cart M0238-01
5/12 2-21
Operation
2. Zero balance indicator.
(First press “Net/Gross”
then “Zero”) Indicator
should display “0”.
Have you found a poor
connection or a loose wire?
Fix or replace j-box Yes
No
1. Disconnect all load cell
wires from terminal
blocks inside j-box. (You
can leave indicator on
while connecting or
disconnecting load cell
wires, you will not damage
load cells or indicator if
wires are shorted during
this step.)
NOTE: You are going to hook up
load cells to the j-box one at a
time (meaning only one load cell
connected at a time). The purpose
of this is to get a reading for each
load cell. Also, while performing this
test, you should watch for any other
symptoms such as erratic/unstable
display, indicator flashing “±Range”,
or a negative reading, etc. If indicator
reading should ever appear abnormal
with any load cell connected, that
load cell is probably defective.
3. Connect one load cell
back into one of terminals
in j-box.
NOTE: Reading you get
for each load cell and how
much weight is dependent
on size and type of load cell
and how much weight is over
each load cell. In general,
number should be a positive
and be stable.
5. Stand or hang your weight
over the connected load cell.
Write down how much the
weight increased with your
weight over the load cell.
(Don’t be alarmed by the
reading, a scale with only
one load cell connected will
weigh heavy.)
NOTE: If the scale responded
to your weight, that’s verification
that the j-box is ok. If the scale
did not respond to your weight,
either that load cell or the j-box
are defective. Try another load
cell. If the scale still shows no
response to your weight, the
j-box is probably defective. 6. Disconnect first load cell and
reconnect a second one. Write
down indicator reading for that
load cell. Stand or hang your
weight over connected load cell.
Write down how much weight
increased with your weight over
load cell.
Do not expect load cells to
give you the same reading. It is
common for each load cell to
have a reading that is hundreds
of pounds, maybe even
thousands of pounds, different
than the others, especially
when one load cell is carrying
more weight than the others.
(Example: The axle load cells
will be carrying more weight
than the hitch weigh beam.)
8. A defective load cell will
cause a reading that is either
unstable, or makes the
indicator flash “±Range”, or is
more than three times greater,
or less than the average of
the others. Additionally, the
readings of your weight over
each load cell should be
similar. (Probably 2-3 times
your actual weight, but similar
to each other.) Any differences
in the readings could be an
indication of a defective load
cell or a structural problem.
Continued from bottom of previous page.
ELECTRONIC SCALE TROUBLESHOOTING
7. Disconnect second load cell and
reconnect third load cell. Also
write down indicator reading for
that load cell. Stand or hang your
weight over connected load cell.
Write down how much weight
increased with your weight over
load cell.
4. Write down indicator reading
with the load cell connected.