Troubleshooting
8-4 October 2019 16K PLUS
16k PLUS Control System - Continued
Sensor Troubleshooting - Continued
Ferrous Metal Sensors - Continued
Common causes for the ferrous metal sensors to not
function properly include:
• Incorrect sensor gap: The gap between the sensor
and the metal meant to activate it should be between
1/8 and 1/4 of an inch. If the gap is too large, the
sensor will not turn true.
Important: Insufcient gap may allow the sensor to
contact moving parts and be destroyed.
• Debris on sensor: Small metallic particles can build
up on the sensor causing it to give a true reading. If
metal lings are building up on the sensor, determine
the cause of the lings and rectify the problem. If the
machine is being operated in an area with volcanic
ash, such as the Pacic North West, it may be
necessary to regularly clean the sensors of debris.
• Sensor failure: To check the operation of a sensor,
unplug the sensor and use an ohmmeter to test the
continuity between the two wires. There should be no
continuity when the switch is free. There should be
no resistance when the switch is placed on a piece
of steel. If the state of the sensor does not change,
it has failed and should be replaced.
Important: The Ferrous Sensors are installed
using brass nuts and bolts and plastic
washers. If the sensor is not assembled
as shown, it may not work properly.
• Wire Harness Failure: To test the wire harness,
unplug the sensor. If the computer still shows “true”,
there is a short in the harness. Next, use a short
piece of wire to short between the two pins of the
plug. If the sensor still reads “false”, there is a break
in one of the wires. See “Harness Schematics” for
more information.
BALE - ON
1
Ferrous Metal Sensor Mounting
PLASTIC WASHER
BRASS WASHER
AND NUT
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