Troubleshooting
Error Input 1 (Pressure Transducer cylinder
base end) Harness wire PD1
Problem: The Boom down, Extension out,
and Winch up functions do not operate and
the radio receiver is displaying Input error 1.
Solutions: Check for broken or loose wires
going to the transducer on the main lift
cylinder. If the connector is unplugged from
the transducer, plug the connector back
into the transducer. If the problem still exists,
check to make sure that the PD1 wire har-
ness connector is plugged into the PD1
base end transducer. This transducer is
locate on the cylinder manifold assembly
and is closest to the base end of the cylin-
der. PD2 transducer is located closest to the
rod end of the cylinder. If there is no
change contact Stellar Customer Service.
Problem: Winch up and Extension out do not
operate while the main boom cylinder is
fully retracted or the crane is stowed in the
boom rest.
Solutions: Raise main lift cylinder slightly, this
condition is due the safety systems of the
crane.
Error Input 2 (Pressure Transducer cylinder
rod end) Harness wire PD2
Problem: The Boom down, Extension out,
and Winch up functions are only operating
at 75% of their normal speed and the radio
receiver is displaying Input error 2.
Solutions: Check for broken or loose wires
going to the transducer on the main lift
cylinder. If the connector is unplugged from
the transducer, plug the connector back
into the transducer. If the problem still exists,
reverse the two transducers and see if prob-
lem reverses. If there is no change contact
Stellar Customer Service.
Error Input 3 (Inclinometer)
Problem: The crane will not lift the rated
load per the capacity chart and the Boom
up, Extension out, and Winch up functions
are only operating at 75% of their normal
speed and the radio receiver is displaying
Input error 3.
Solutions: Check for broken or loose wires
going to the Inclinometer located just inside
the main boom assembly. If the connector
going to the Inclinometer has come loose
or is unplugged, plug the connector back
into the Inclinometer. If the problem still
exists, replace the Inclinometer.
Error Input 4 (Anti-two-block)
Problem: The Boom Down, Extension out,
and Winch up functions will not operate and
the radio receiver is displaying Input error 4.
Solutions:
1. Make sure that the Anti-2-block weight
and chain on the end of the boom are
straight so it easily slides up and down the
wire rope cable.
2. Make sure that the cradle bar is not bent
and is not allowing the limit switch to dis-
engage.
3. Disconnect the two wires connected to
the limit switch and twist them together.
If all functions operate, replace the limit
switch.
4. If the functions still do not operate after
testing the limit switch, visually inspect the
cord reel wires going to the limit switch. If
the wiring appears to be ok, check the
continuity of the cord or disconnect the
cord reel from the crane harness and
bypass the harness connection. If the
crane operates properly, replace the
cord reel.
Stellar ® CDT Radio Error Code Troubleshooting
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