Electronic Header Height Control

Units will not raise.

Height sensing valve stuck open.

Check valve.

Sensing shoe linkage out of adjustment.

Adjust linkage.

Orifice in height sensing valve partially blocked.

Clean orifice plate.

HHC not calibrated properly.

Calibrate HHC system.

Erratic lift of units.

Plugged filter.

Replace filter.

Slow sensing

Orifice in height sensing valve partially blocked.

Clean orifice plate.

Plugged filter.

Replace filter.

Linkage binding.

Adjust linkage.

Response rate set too slow.

Increase response rate.

NXL,7455,O6 -19-27MAR97-1/1