DS 350 G Boom Control Troubleshooting- TMS/TTS870 / RT865 BXL
031-300-190-039 Rev. B 4/30/99
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15. Continuation
Is the voltage
correct (-500mV)?
Defective length potentiometer.
Replace length potentiometer
assembly. Refer to drawing on
page 18.
Yes
Continuation
Is the voltage
correct (-5V)?
Yes
Verify the length sensor signal.
Measure the voltage at the length
transducer (LWG 221) terminal 1
(GND) and 2 (-500mV) with fully
retracted boom.
Check the length signal in the central unit.
Measure the signal at central unit terminal
A104 X1/73 (-500mV) and A104 X1/8
(GND) with fully retracted boom.
Refer to section 11.
No
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Faulty wiring between
central unit and length
transducer. Check
wiring, junction boxes
and connectors for
faulty wiring.
No
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