Alltech KEENAN MechFiber380, Руководство оператора

Страница: 69 / 73

KEENAN
MechFiber380 Operator’s Manual
Revision D02 09
th
Sept 2020
69
12.2 Weighing troubleshooting
KEENAN troubleshooting tips on weighing
If you experience problems in the operation of the weighing system, read through this
troubleshooting section before contacting a KEENAN service representative.
Reading drifting
If the reading on the weigh box is drifting or does not stay steady, the most likely cause of
the problem is dampness or moisture in or around the weigh box or cables. Please follow
these steps to determine and correct the problem.
•
Disconnect the cables on the weigh box. Ensure that they are labelled correctly for
reconnection. Check both the plug on the cable and the connector on the weigh box
for dampness and/or corrosion of the terminals. If any dampness is found, dry it off
thoroughly with a hairdryer. If corrosion is found on the terminals, clean them
thoroughly with an electrical cleaner and let them dry. Then, reconnect and test the
cable.
•
Check for loose wiring or dampness. Some machines are fitted with a junction box.
The procedure detailed above also applies here.
•
Check weigh cell plugs for dampness, and also check weigh cell cables for any
breaks and/or dampness.
If the steps above do not rectify the problem, contact a KEENAN service representative for
further assistance.
System weighing inaccurately
If the machine is new or the weigh box has been replaced, it is possible that the weigh box
may have the incorrect calibration code for the model. Contact a KEENAN service
representative, who can check (or alter) the code.
If you suspect that the system is weighing inaccurately, check all four weigh cells to make
sure that they are mounted correctly. If the bolt through the weigh cell has broken or come
loose, the weigh cell can rotate, resulting in that weigh cell giving an inaccurate reading. To
check that the system is weighing correctly, find an item whose weight is already known
(e.g., a bag of fertilizer) and place it on each corner of the machine in turn. Doing so should
return the same reading for each corner. If one corner returns a significantly different reading
from the other three, this indicates a faulty weigh cell on that corner. If a negative reading is
returned, the weigh cell could potentially be upside down; rotate it 180° and repeat the test.
Weigh box will not switch ON
Check the power cable thoroughly and make certain that you are getting power from the
tractor to the display. Unscrew the power cable from the weigh box and ensure that there is
a 10- to 13-volt supply across the internal pins of the cable. If the negative (-) and positive
(+) are wired the wrong way, the weigh box will not switch on [Dinamica Generale weigh
boxes power cable: white (+) and black (-)].