Avery Weigh-Tronix WI-125 Service Manual page 38

8. Not Repeating
This can be caused by the way the Quik-Tach Scale is hanging on the lift
truck's carriage.
a. First check the clamps on the bottom of the carriage. Make sure there
is proper spacing around the block assembly. These clamps are
there to keep the scale from coming forward off the lift truck carriage.
They are not intended to secure the scale to the lift truck carriage.
b. If you have done any maintenance to the carriage as far as replacing
a Weigh Bar, verify that all Weigh Bars have the stamped "T" at the
very top of Weigh Bar. Also the Weigh Bars and the Super bolts
should be torqued properly, and in the sequence specified in this
manual.
c. If a J-box is not cornered correctly this could cause repeating prob-
lems. There is a cornering procedure in the WI-125 QTLTSC Service
manual. On a hardwire style J-box, broken or miss-aligned interface
or cell wires can cause repeating problems. Check the color code on
the J-box PCB.
9. Upper or Lower Dashes.
Your going to be dealing with a system that was working before because
every system leaves the factory in working condition. So there must be a
reason why the unit has dashes. Normally dashes (upper or lower) means
your out of the A to D range of the existing calibrate points, but when the unit
was working before there has to be something that put the unit into a dash
mode. You will want to start trouble shooting the system to find out what
part, or parts are defective and causing this type of problem. Start by
checking the indicator with a simulator, if the head checks out move onto the
interface cable and so on.
10. All 0000s or 9999s after fitting data in calibration.
This means the points in the calibration were too far out of tolerance for the
WI-125 to mathematically configure the calibration. It would be wise to do a
Master Clear and then recalibrate.
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