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Linkages binding.
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Frozen or worn ball joints on linkage.
|
Lubricate or replace.
|
|
|
Linkage rods bent or interfering.
|
Adjust at ball joints or straighten.
|
|
|
Control shafts binding.
|
Lubricate or replace bearings.
|
|
|
Control shaft on pump binding.
|
See your John Deere dealer.
|
|
System overheating. (Warning light comes on.)
|
Air passages in cooler core plugged.
|
Clean cooler core.
|
|
|
Fan belt slipping or broken.
|
Tighten or replace fan belt.
|
|
|
Exceeding relief valve pressure.
|
Shift to lower gear.
|
|
|
Side screens plugged.
|
Clean screens.
|
|
Picker will not propel forward or reverse
1
.
|
No voltage to destroker valve on hydro.
|
Sit squarely on seat. Move hydro lever to Neutral and reset. If still no voltage, see your John Deere dealer.
|
|
|
Transmission inoperative.
|
Check transmission and linkages or see your dealer.
|
|
|
Low on oil.
|
Check for leak and correct. Fill reservoir with oil.
|
|
|
Broken coupling from motor to transmission.
|
Repair as needed.
|
|
|
Air leak in system.
|
Tighten connections.
|
|
|
Defective U-joint from engine to pump.
|
Repair as needed.
|
|
|
Plugged oil filter.
|
Change filter element.
|
|
|
Exceeding relief valve pressure.
|
Shift to lower gear.
|
|
Transmission hard to shift or will not shift.
|
Hydro lever not in neutral.
|
Move hydro lever to neutral or adjust hydro linkage.
|
| Symptom |
Problem |
Solution |
|
Ground travel speed erratic.
|
Low on oil.
|
Check for leaks and correct. Fill reservoir.
|
|
|
Plugged oil filter.
|
Change filter element.
|
|
|
Exceeding relief valve pressure.
|
Shift to lower gear.
|
|
|
Hydro lever creeps toward neutral.
|
Replace friction washers and/or springs as necessary.
|
|
|
Drive systems unable to maintain charge pressure.
|
See your John Deere dealer.
|
|
Picker not responding to hydro lever
1
.
|
Operator presence system activated.
|
Bring hydro lever to neutral and try again.
|
|
|
Linkage loose or broken.
|
Check and repair as needed.
|
|
|
Plugged oil filter.
|
Change filter element.
|
|
|
Air in system.
|
Tighten connections, hose clamps, and check for broken hydraulic lines.
|
|
|
Low on oil.
|
Check for oil leaks and correct. Refill reservoir.
|
|
Lack of power or loss of power
1
.
|
Low on oil.
|
Check for leaks and correct.
|
|
|
Plugged oil filter.
|
Change filter element.
|
|
|
Leaking or broken oil line or connection.
|
Check and repair as necessary.
|
|
|
Drive system unable to maintain or build up pressure.
|
See your John Deere dealer.
|
|
Picker will not start in neutral or will start when hydro lever is in any operational position.
|
Safety switches out of adjustment, faulty wiring or inoperative switch.
|
Check wiring connections or see your John Deere dealer.
|
|
Transmission leaking oil from breather.
|
Overfilled transmission.
|
Drain excess oil.
|