Hydraulic Difficulties
Never work on machine while it is running. Driveline
can continue after disengaging PTO. Stay clear of machine until it
has come to a complete stop. Shut engine off, remove key from ignition,
set parking brake, and engage flywheel brake before repair or servicing.
Only restart machine once cause is identified and resolved. Working with an unsafe machine can result in serious injury or damage to equipment.
|
Hydraulic pressure not increasing. | Control valve not connected. |
Connect control valve. |
|
PTO not engaged. |
Engage PTO. |
|
|
Low oil level. |
Fill with recommended oil, if necessary. (See Use of Transmission and Hydraulic Oil in Lubricants and Capacities section.) |
|
|
Air in hydraulic system. |
Bleed hydraulic system. Check all hoses and connections. |
|
|
Pump overheated. |
Check lines and reservoir for excessive material buildup.
Check coolers (fan circuit) for material buildup.
Stop machine and wait for oil to cool.
Replace pump if necessary. See your John Deere dealer. |
|
|
Dirty oil. |
Drain, flush system, refill with new oil, and replace filter. |
|
|
Manual override valve not working correctly. |
Replace manual override valve. |
|
|
Pump not working correctly. |
Check flow.
Repair or replace pump if necessary. See your John Deere dealer. |
|
|
Rotor sensor faulty. |
Replace rotor speed sensor. See your John Deere dealer. |
|
|
Pressure sensor faulty. |
Replace sensor. See your John Deere dealer. |
|
Hydraulic pressure drops with each plunger stroke. | Plunger overload. |
Lower tension system pressure or decrease machine load setting. |
|
SF04007,0000A3F-19-20160104 |