SEAL 0847075 - Caterpillar

Table 1
GPS Status Message     Problem     Solution    
"No GPS Receiver Data"     There has been no GPS data coming from one or both GPS receivers for at least 1.5 seconds.
This could be caused by:
a problem with a GPS receiver,
a cabling fault, or a problem with a GPS receiver configuration.     Check the cable, power, and connections. Check the physical condition of the GPS receivers.
Turn off the display and then turn the display back on.
If problems continue, contact your supervisor.    
"No GPS Data (Right)"     Accurate positions are being generated for the left GPS receiver but not for the right.
This could be caused by a cabling fault, or a problem with the GPS receiver configuration.     Check the cable, power, and connections for the right receiver.
If problems continue, contact your supervisor.    
"Low Accuracy (GPS)"     The GPS error estimate has exceeded the limit set by the GPS "Accuracy Mode".     Change your GPS "Accuracy Mode".
Check the data radio and radio cable.
Contact your supervisor to adjust the accuracy limits.    
"Very Low Accuracy (GPS)"     The AccuGrade system is receiving autonomous GPS positions from one or both GPS receivers.     Check the data radio and base station.    
"Old Position"     A position is not being generated by one or both GPS receivers     Check the GPS receivers and cables.    
"Invalid GPS Configuration"     There is a problem with a GPS receiver output configuration. The coordinate system may be missing from the GPS receiver configuration.
There is GPS data but the data is in the wrong format, or the baud rate is incorrect.     Load a design. Doing so will send a valid GPS configuration file to the GPS receivers. Alternatively, contact your supervisor.    Table 2 lists warning messages that relate to general AccuGrade system operation.
Table 2
General Warning Messages    
Message    Reason    Solution    
"Avoid Zone Entered"     Machine has entered an "Avoidance Zone". This is an area that has been designated dangerous for machine operation     Use "Plan View" to guide the machine out of the Avoidance Zone.    
"Loading Data"     The display is loading the current design information. The display is loading the "Layered Lift" surface.     Wait for the message to stop. It will disappear after a short period.    
"Check Machine Type"     The stored machine settings are invalid.     Restore the correct machine settings file or ask the site manager to correct the system configuration.    Table 3 lists the messages that relate to the AccuGrade system that is installed on excavators.
Table 3
Excavator Status Messages    
Message    Indicates that ...    Solution    
"Check Boom Sensor"     The boom position sensor is not connected, out of range, or not zeroed.     Check the boom position sensor and cable harness for damage.    
"Check Stick Sensor"     The stick position sensor is not connected, out of range, or not zeroed.     Check the stick position sensor and cable harness for damage.    
"Check Bucket Sensor"     The