THE GS320 SYSTEM
3.2 Replacing the Sensor Antenna
Heavily damaged antennas (ripped out, sheared off, wire
exposed and fraying etc.) should be replaced to ensure
effective communication between the sensor and the
cabin mounted display unit.
This procedure may be followed without removing the
sensor from the crane if it is safe to do so.
THe InTeRIoR of THe sensoR MUsT be
PRoTeCTeD fRoM DUsT, gRIMe, anD
WaTeR aT all TIMes.
CAUTION
1. Place the crane, boom, jib, or ball hook such that the
sensor is safely accessible.
2. Clean dust, grime, and water from the sensor.
3. Identify the short black whip antenna and the white
hex bolt securing it.
4. Inspect the antenna for signs of obvious physical
damage.
5. Carefully unscrew the white nylon hex bolt completely
and slide it up the antenna.
5
7/16 in.
wrench
Figure 6: Unscrew the white nylon hex
6. Grip the antenna by the base of the black plastic
sheathing and pull it straight out of the hole in which
it is seated. Place the old antenna aside.
6
Figure 7: Pull out the antenna
7. Slide the white nylon hex bolt to the middle of the
length of the new antenna.
8. Coat the exposed metal foot of the new antenna
with an electrical insulating compound by carefully
inserting it in the mouth of the compound tube.
8
compound
Figure 8: Coat the exposed metal foot of the antenna
9. Hold the new antenna by the black plastic sheathing
and guide it through the hole in the sensor box.
Carefully seat the antenna in its mating connector.
When the antenna is correctly seated, pulling on it
will be met with light resistance.
White nylon hex bolt
TA011 Antenna
Sensor box
Antenna receptacle
Figure 9: Install the new antenna
10. Carefully re-thread, screw-in and tighten the white
nylon hex bolt to secure the antenna in place. Do
not overtighten.
11. Reinstall the sensor if necessary.
12. Verify that the sensor functions properly.
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