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Inner boom section does not fold out.
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Flag assembly for micro switches on outer fold cylinder out of adjustment.
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Adjust flag assembly (See Adjusting Micro Switch-Outer Fold Cylinder in Boom section).
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Failed solenoid coil or relay.
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Replace coil or relay.
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Damaged or corroded electrical connections.
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Repair, replace or clean electrical connection.
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Sticking hydraulic spool.
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Remove hydraulic spool and clean or see your John Deere dealer.
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Check valve stuck shut in load sense line.
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Remove and clean check valve or see your John Deere dealer.
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Load sense jamming valve not working.
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See your John Deere dealer.
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Faulty switch.
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Replace switch.
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Faulty inner boom fold cylinder.
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See your John Deere dealer.
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Plugged orifice or hydraulic line.
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Remove and clean orifice or hydraulic line.
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Outer boom section does not fold out.
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Flag assembly for micro switches on inner fold cylinder out of adjustment.
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Adjust flag assembly (See Adjusting Micro Switch-Inner Fold Cylinder in Boom section).
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Failed solenoid coil or relay.
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Replace coil or relay.
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Damaged or corroded electrical connections.
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Repair, replace or clean electrical connection.
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Sticking hydraulic spool.
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Remove hydraulic spool and clean or see your John Deere dealer.
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Check valve stuck shut in load sense line.
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Remove and clean check valve or see your John Deere dealer.
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Load sense jamming valve not working.
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See your John Deere dealer.
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| Symptom |
Problem |
Solution |
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Faulty switch.
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Replace switch.
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Faulty inner boom fold cylinder.
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See your John Deere dealer.
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Plugged orifice or hydraulic line.
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Remove and clean orifice or hydraulic line.
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Inner boom section does not fold in.
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Flag assembly for micro switches on outer fold cylinder out of adjustment.
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Adjust flag assembly (See Adjusting Micro Switch-Outer Fold Cylinder in Boom section).
|
|
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Failed solenoid coil or relay.
|
Replace coil or relay.
|
|
|
Damaged or corroded electrical connections.
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Repair, replace or clean electrical connection.
|
|
|
Sticking hydraulic spool.
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Remove hydraulic spool and clean or see your John Deere dealer.
|
|
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Check valve stuck shut in load sense line
|
Remove and clean check valve or see your John Deere dealer.
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Load sense jamming valve not working.
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See your John Deere dealer.
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Faulty switch.
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Replace switch.
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Faulty inner boom fold cylinder.
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See your John Deere dealer.
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Plugged orifice or hydraulic line.
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Remove and clean orifice or hydraulic line.
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Outer boom section does not fold in or inner boom folds in before outer boom folds in.
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Flag assembly for micro switches on inner fold cylinder out of adjustment.
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Adjust flag assembly (See Adjusting Micro Switch-Inner Fold Cylinder in Boom section).
|
|
|
Failed solenoid coil or relay.
|
Replace coil or relay.
|
|
|
Damaged or corroded electrical connections.
|
Repair, replace or clean electrical connections.
|
|
|
Sticking hydraulic spool.
|
Remove hydraulic spool and clean or see your John Deere dealer.
|
|
|
Check valve stuck shut in load sense line.
|
Remove and clean check valve or see your John Deere dealer.
|
| Symptom |
Problem |
Solution |
|
|
Load sense jamming valve not working.
|
See your John Deere dealer.
|
|
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Faulty switch.
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Replace switch.
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Faulty outer boom fold cylinder.
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See your John Deere dealer.
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Plugged orifice or hydraulic line.
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Remove and clean orifice or hydraulic line.
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Boom will not return to level after rolling in either direction or boom will not roll freely.
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Suspended center frame binds at wear plates or center mounting bearings too far forward on shaft.
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See your John Deere dealer.
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Boom does not raise or lower.
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Failed solenoid coil or relay.
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Replace coil or relay.
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|
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Damaged or corroded electrical connections.
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Repair, replace or clean electrical connection.
|
|
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Sticking hydraulic spool.
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Remove hydraulic spool and clean or see your John Deere dealer.
|
|
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Check valve stuck shut in load sense line.
|
Remove and clean check valve or see your John Deere dealer.
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|
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Load sense jamming valve not working.
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See your John Deere dealer.
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Faulty switch.
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Replace switch.
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Faulty lift cylinders.
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See your John Deere dealer.
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Hydraulic compensator pressure not to specification.
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See your John Deere dealer.
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Boom lift raises too fast.
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Orifice in hydraulic line is missing.
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Install correct size orifice.
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One individual boom function does not stop when switch is released or is slow to release.
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Faulty solenoid valve.
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Repair or replace solenoid valve.
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Sticking hydraulic spool assembly.
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Clean spool assembly or see your John Deere dealer.
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