Selective Control Valve (SCV) Troubleshooting

SymptomProblemSolution

Remote cylinder will not lift load

Flow check

Cycle SCV levers

 

Excessive load

Reduce load

 

Hoses not completely installed

Attach hoses correctly

 

Incorrect remote cylinder size

Use correct size cylinder

 

SCV transport lock engaged

Release transport lock

 

Incorrect or damaged hose tips

Replace hose tips

Remote cylinder rate of travel too fast or too slow

Incorrect flow rate

Adjust flow rate on CommandCenter™

Direction of remote cylinder travel is reversed

Incorrect hose connections

Reverse hose connections

Hoses will not couple

Incorrect hose male connectors

Replace connectors with ISO standard connectors

Detent does not hold or releases too soon

Detent time set incorrectly

Set time correctly

 

Pressure restriction with some implements

Reduce oil flow by changing metering valve setting

 

Flow control or detent release setting incorrect

Adjust detent relief setting

SCV lever does not release

Float is being ”commanded”

Do not push lever down in forward position

 

Lever mechanism failed

See your John Deere dealer

 

Built in pressure leakage with some implements

Increase oil flow by changing metering valve setting

 

Flow control or detent release setting incorrect

Adjust detent relief setting

Implement does not operate or does not operate correctly

Incorrect hose connections

Reverse hose connections

See your John Deere dealer


CommandCenter is a trademark of Deere & Company

ZE59858,0000569-19-20101108