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10.3 | Hydraulic Control Issues

Issue Possible Cause Recommended Action
No hydraulic movement Valve harness disconnected Verify all ECU and valve harness connections
No hydraulic movement Incorrect hydraulic interface selected Verify the configured hydraulic interface type within Level COMMAND
No hydraulic movement Hydraulic outputs disabled Verify COMMAND outputs are enabled and Automatic Control is Armed. Check valve status within COMMAND Settings > Valve Configs or COMMAND Settings > Tuning
No hydraulic movement Tractor hydraulic remotes disabled Verify tractor SCVs/remotes are enabled and assigned correctly
Raise/lower functions reversed Incorrect valve polarity or hydraulic configuration Verify hydraulic output polarity and configuration
Raise/lower functions reversed Hydraulic hoses connected incorrectly Verify hydraulic hose routing and plumbing orientation
Hydraulic outputs operate incorrectly Incorrect valve type selected Verify the configured hydraulic interface matches the installed valve system. Check valve status within COMMAND Settings > Valve Configs
Hydraulic outputs operate incorrectly Incorrect CANBUS interface configuration Verify CANBUS/J1939 hydraulic interface configuration
Hydraulic movement unstable Incorrect calibration values Recheck hydraulic calibration and tuning settings
Hydraulic movement unstable Incorrect tuning parameter configuration Verify minimum extend/retract thresholds, maximum extend/retract thresholds, tracking sensitivity and cylinder ratio settings
Hydraulic movement slow or unresponsive Hydraulic flow limits too low Verify tractor hydraulic flow settings
Hydraulic movement slow or unresponsive Engine RPM too low Operate machine at recommended engine RPM
Hydraulic movement delayed Excessive deadband configuration Verify deadband and response tuning settings
Hydraulic outputs noisy or erratic Damaged PWM/analog wiring Inspect hydraulic output harnessing for damage
Hydraulic calibration cannot be completed Incorrect machine setup during calibration Perform calibration on stable level ground
Hydraulic calibration cannot be completed Incorrect valve wiring Verify valve output wiring and polarity
Automatic Control disengages during operation Hydraulic response outside configured limits Verify hydraulic tuning and response stability
Automatic Control performance inconsistent Incorrect implement profile selected Verify correct implement configuration within Level COMMAND
Hydraulic movement continues after command released Hydraulic valve sticking Inspect hydraulic valve operation and cleanliness
Hydraulic movement continues after command released Incorrect valve calibration Recheck valve calibration settings
Hydraulic outputs noisy or erratic Electrical noise or poor grounding Verify ECU and valve grounds are secure
Hydraulic outputs noisy or erratic Damaged PWM/analog wiring Inspect hydraulic output harnessing for damage
Hydraulic outputs noisy or erratic Incorrect PWM frequency configuration Verify PWM frequency matches valve requirements
No external valve response Incorrect VM430/431 configuration Verify external valve controller setup and addressing
No external valve response Incorrect J1939 configuration Verify J1939 network settings and communication
Hydraulic response differs between directions Unequal flow settings Verify raise/lower hydraulic flow configuration
Hydraulic calibration cannot be completed Incorrect machine setup during calibration Perform calibration on stable level ground
Hydraulic calibration cannot be completed Incorrect valve wiring Verify valve output wiring and polarity
Automatic Control disengages during operation Hydraulic response outside configured limits Verify hydraulic tuning and response stability
Automatic Control performance inconsistent Incorrect implement profile selected Verify correct implement configuration within Level COMMAND
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