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Slow or jerky operation
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Cold hydraulic oil.
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Run engine and cycle loader.
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|
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Use low viscosity hydraulic oil in cold weather. (See your tractor Operator's manual or your John Deere dealer.)
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Low hydraulic oil.
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See tractor Operator's manual.
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Poor oil circulation.
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Check transmission/hydraulic oil filter.
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Engine speed too slow.
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Increase engine speed.
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Internal cylinder leakage.
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Install cylinder repair. (See your John Deere dealer.)
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|
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Faulty tractor hydraulic system.
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See your John Deere dealer.
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Faulty quick-connect coupler.
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See your John Deere dealer.
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Overfilling bucket or attachment.
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Reduce load.
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Oil leaks
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Defective fitting or hoses.
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Replace defective parts. (See your John Deere dealer.)
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Loose connections.
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Tighten fittings. (See TORQUE PROCEDURE FOR FITTINGS in Service section.)
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|
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Worn or damaged O-ring or wiper seal in cylinder rod end.
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Install cylinder repair kit. (See your John Deere dealer)
|
|
Only one mast engages mounting frame
|
Loader on uneven ground.
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Be sure to park loader on even ground when detaching.
|
|
Difficult to connect hydraulic coupler
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Hydraulic system pressurized.
|
Relieve pressure.
|
| Symptom |
Problem |
Solution |
|
Insufficient lift capacity
|
Load is greater than loader lift capacity.
|
See Specifications section.
|
|
|
Internal lift cylinder leakage.
|
Install cylinder repair kit. (See your John Deere dealer.)
|
|
|
Incorrect lift cylinder position for tractor/loader combination.
|
See your John Deere dealer.
|
|
Loader functions do not correspond to control lever movement
|
Improperly connected hydraulic hoses.
|
Connect hydraulic hoses correctly. (See IDENTIFYING HOSE CONNECTIONS in Service section.)
|
|
Cylinders inoperative
|
Hose improperly connected.
|
Connect hoses correctly. (See IDENTIFYING HOSE CONNECTIONS in Service section.)
|
|
|
Defective quick-connect coupler.
|
See your John Deere dealer.
|
|
Bucket tines bend or break
|
Only a few tines were under load.
|
Be sure three or more tines are under load.
|
|
Excessive wear on bucket cutting edge and wear pads
|
Not using FLOAT position.
|
Use FLOAT position. (See USING FLOAT in Controls section.)
|
|
Excessive wear on bucket cutting edge
|
Bucket is riding on cutting edge instead of wear pads.
|
Use bucket level indicator to ensure bucket rides on wear pads. (See INSTALLING BUCKET LEVEL INDICATOR in Attachments section.)
|
|
Bucket or loader drifts down from raised position
|
Leak in hydraulic circuit.
|
Tighten fittings. (See TORQUE PROCEDURE FOR FITTINGS in Service section.)
|
|
|
Worn or Damaged O-rings in Tractor Selective Control Valve (SCV)
|
Repair SCV. (See your John Deere dealer.)
|
|
|
Internal leakage in loader cylinders.
|
Install cylinder repair kit. (See your John Deere dealer.)
|