Selective Control Valves (SCV)

Symptom Problem Solution

Flow control knob or detent will not turn

Dirt build-up.

Clean dirt from flow control knob shaft.

Remote cylinder rate-of-travel too fast or too slow

Incorrect flow control adjustment.

Adjust flow control.

Detent does not hold SCV lever

Detent selector in wrong position.

Turn selector to correct position.

Mid SCV activated.

Avoid use of mid SCV.

3-Point Hitch activated.

Avoid use of 3-point hitch.

Low Engine rpm.

Increase engine rpm.

Pressure restriction with some implements.

Reduce oil flow by changing flow control setting.

Flow control or detent setting incorrect.

Adjust flow control and/or detent setting.

SVC lever released too soon

Detent selector in wrong position.

Turn selector to correct position.

Implement is not connected to SCV-I.

Connect implement to SCV-I.

SCV lever does not release

Detent selector not in automatic detent position.

Turn selector to correct position.

See your John Deere Dealer.

Built-in pressure leakage with some implements.

Increase oil flow by changing flow control setting.

Incorrect Flow control.

Adjust flow control.

Rear SCV fails to function

Rear SCV does not generate pressure.

Check O-ring/back-up ring on power beyond fitting in mid SCV.

SH20560,0000117 -19-21APR08-1/1