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Linkages binding.
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Frozen or worn ball joints on cable.
|
Lubricate or replace.
|
|
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Control cable binding.
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Replace cable.
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|
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Control lever on pump binding.
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See your John Deere dealer.
|
|
System overheating.
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Exceeding relief valve pressure.
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Shift to low speed.
|
|
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Side screens plugged.
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Clean screens.
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Oil cooler core plugged.
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Clean oil cooler.
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Low on oil.
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Check for leak and correct.
|
|
|
Fan belt slipping or broken.
|
Replace belt and/or tensioner.
|
|
|
By-pass valve stuck open.
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Repair as needed (see your John Deere dealer).
|
|
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Excessive high pressure leakage.
|
See your John Deere dealer.
|
|
Sprayer will not travel forward or reverse.*
|
Exceeding relief valve pressure.
|
Shift to low speed.
|
|
|
Low on oil.
|
Check for leak and correct. Fill reservoir with oil.
|
|
|
Plugged oil filter.
|
Change filter element.
|
|
|
Drive belt slipping or broken.
|
Tighten or replace drive belt.
|
|
|
Air leak in system.
|
Tighten connections.
|
|
|
Defective U-joint from engine to pump.
|
Repair as needed.
|
|
|
Drive system inoperative.
|
Check drive belt, pump, motor and cable or see your John Deere dealer.
* When operating in temperatures below -12°C (10°F), run sprayer for 10-15 minutes to warm up hydrostatic drive oil.
|
| Symptom |
Problem |
Solution |
|
Ground travel speed erratic.
|
Exceeding relief valve pressure.
|
Shift to low speed.
|
|
|
Low on oil.
|
Check for leaks and correct. Fill reservoir.
|
|
|
Plugged oil filter.
|
Change filter element.
|
|
|
Drive system unable to maintain charge pressure.
|
See your John Deere dealer.
|
|
Sprayer not responding to speed range switch.*
|
Low on oil.
|
Check for oil leaks and correct. Refill reservoir.
|
|
|
Plugged oil filter.
|
Change filter element.
|
|
|
Air in system.
|
Tighten connections, hose clamps, and check for broken hydraulic lines.
|
|
|
Defective speed range solenoid or switch.
|
Check and repair as needed.
|
|
|
Drive system unable to build up pressure.
|
See your John Deere dealer.
|
|
Lack of power or loss of power.*
|
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.
|
|
|
Excessive high pressure leakage.
|
See your John Deere dealer.
|
|
|
|
* When operating in temperatures below -12°C (10°F), run sprayer for 10-15 minutes to warm up hydrostatic drive oil.
|
|
Sprayer 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.
|