Troubleshooting

SymptomProblemSolution

Spinner motors do not turn when spinner control valve is in running position or conveyor does not run when controller is in manual mode.

Hydraulic oil level low.

Add hydraulic oil as necessary to maintain level around mid-point of sight gauge.

 

Hydraulic Pump is not rotating.

Refer to John Deere 4 Series manual.

 

Relief valve set too low.

Refer to John Deere 4 Series manual.

 

Worn pump.

Refer to John Deere 4 Series manual.

 

Jammed or frozen spinner motors.

Free up. If not possible, replace as required.

 

Jammed or frozen conveyor.

Free up conveyor.

 

Jammed or frozen conveyor hydraulic motor.

Replace motor.

Spinners turn but conveyor does not run in manual mode.

Relief valve open to return line.

Using relief valve testing adapter and flowmeter, test valve for opening pressure. If pressure is not 13,800 kPa (138 bar) (2000 psi), replace relief valve.

 

Jammed or frozen conveyor.

Free up conveyor.

 

Jammed or frozen conveyor hydraulic motor.

Replace motor.

 

Conveyor hydraulic motor shaft key sheared.

Replace key.

Console in operation mode, but the conveyor does not move when the machine moves.

Relief valve open to return line.

Using relief valve testing adapter and flowmeter, test valve for opening pressure. If pressure is not 13,800 kPa (138 bar) (2000 psi), replace relief valve.

 

Jammed or frozen conveyor.

Free up conveyor.

 

Jammed or frozen conveyor hydraulic motor.

Replace motor.

 

Conveyor hydraulic motor shaft key sheared.

Replace key.

Spinner speed does not stay constant.

Relief valve set too low.

Refer to John Deere 4 Series manual.

 

Worn pump.

Refer to John Deere 4 Series manual.

 

Defective spinner control valve.

Replace valve metering spool spring. If no improvement, replace spinner control valve.

 

Contamination in John Deere load sense bleed-down orifice.

Clear orifice.

Spinner speed on display not accurate.

Inner fin hardware is stainless steel.

Replace hardware with non-stainless steel hardware.

Hydraulic oil overheats (93.4°C. (200°F.) or hotter).

Hydraulic oil level low.

Add hydraulic oil as necessary to maintain level around mid-point of sight gauge.

 

Relief valve set too low.

Refer to John Deere 4 Series manual.

 

Conveyor relief valve open to return line.

Using relief valve testing adapter and flowmeter, test valve for opening pressure. If pressure is not 13,800 kPa (138 bar) (2000 psi), replace relief valve.

 

Worn motor (spinner or conveyor).

Motor heats up at an excessive rate (check for this heating when system is cold). Replace motor.

 

Improper or deteriorated hydraulic oil.

Replace hydraulic oil with proper specification oil and replace filter.

 

Pinched or obstructed hose, hydraulic line, or fitting.

Clear obstruction or replace part. Straighten kinked hoses.

Hydraulic system pulsates.

Hydraulic pump requires adjustment.

Refer to John Deere 4 Series manual.

Spreader not functioning properly.

Controller application or programming.

Refer to the control manual Troubleshooting section.

Hopper empties with no low bin warning.

Bin sensor covered with material.

Clean bin sensor. (See Clean Bin Sensor in Lubrication and Maintenance section.

 

Faulty bin sensor.

Replace bin sensor.

 

Controller alarm not enabled.

Program controller to count down product with low bin warning.

Cables do not wind properly in the spool grooves.

Spools are binding on the roll tube.

Remove, clean, and regrease spools.

 

Tarp is not centered.

Measure, center tarp and verify that plastic washers are installed on fixed tube.

 

Ratchets are not installed correctly.

Adjust from side to side

 

Incorrect cable tension.

Adjust tension.

Tarp does not roll evenly, binds on one or both ends.

Spools are binding on the roll tube.

Remove, clean, and regrease spools.

 

Cable tension is too loose.

Adjust tension as necessary.

 

Tarp size has changed.

Verify that tarp has not been altered or improperly repaired, and that tarp is square.

Tarp is not taut in the middle when closed.

Tension too loose.

Adjust tension as necessary.

 

Ridge straps are not in correct location.

Move or install ridge straps as needed.

 

Bow height and spacing are incorrect.

Move, adjust, repair, or replace bows as necessary.

Tarp is worn or has holes.

Sharp edges on spreader box.

Remove sharp edges, repair, or replace tarp parts and /or tarp.

TB90758,0001906-19-20150511