TM 5-6675-348-13&P
BLADE PRO MOTOR GRADER CONTROL SYSTEM
SECTION IV.
TROUBLESHOOTING
While the Blade Pro Motor Grader Control System is a highly accurate system, you may encounter problems as
you work in the field. Use this section to troubleshoot your problems. You may want to have a qualified
maintenance person troubleshoot and fix any problems.
Fault
No.
Description
Page
Operator Interface Box Will Not Turn On .........................................................................................................3-61
Auto and Manual LEDs Are Lit on Same Side of Control Box.........................................................................3-62
Right/Left Switches in Auto Position, But Automatic Control Is Not Functioning.........................................3-63
Blade Undercuts or Pulls Into a Cut..................................................................................................................3-63
Tracer Sonic Grade Controller Will Not Reset ...............................................................................................3-64
Cross-Slope Side Does Not Cut Desired Slope ..................................................................................................3-65
Tracer Sonic Grade Controller Keeps Losing Reference ................................................................................3-66
Hydraulic Control Valves Do Not Raise or Lower in Automatic Mode, But Blade Operates Manually ........3-67
Blade Pro Motor Grader Control System Leaves Waves in the Material......................................................3-69