Alltech 30L100, Руководство оператора

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KEENAN MechFiber300 Operator’s Manual
73
Revision F01 06
th
March 2020
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 first 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/moisture in or around the weigh box or cables. Please follow these steps
to locate and correct the problem:
•
Disconnect the cables on the weigh box. Ensure 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 hair drier. If corrosion is found on the terminals, clean thoroughly
with electrical cleaner and dry. Then, reconnect cable and test.
•
Check for loose wiring or dampness. Some machines are fitted with a junction box.
The procedure as detailed above applies.
•
Check weigh cell plugs for dampness and also check weigh cell cables for any breaks
and/or dampness.
If the above measures do not rectify the problem, then 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 go through the procedure to 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 come loose or broken,
the weigh cell can rotate resulting in that weigh cell giving an inaccurate reading. To check that
the system is weighing correctly, get some known weight (e.g. a bag of fertilizer) and place it
on each corner of the machine in turn. You should get the same reading for each corner. If one
corner returns a significantly different reading from the other three then this points to a faulty
weigh cell on that corner. Also, if receiving a negative reading, it would indicate that the weigh
cell is 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 there is a good 10
–
13-volt supply across the internal pins of the cable. If the negative (-) and positive (+) are wired
the wrong way around, the weigh box will not switch on [Dinamica Generale weigh boxes power
cable
— white (+) and black (-)].