CAUTION:
If cylinder response is reversed (extending when it should retract), reverse cylinder hose connections at coupler.
SCV control levers (I-V) have six positions:
-
Neutral
-Lever returns to center position when released except in float position
-
Extend
(rearward between Neutral and Extend Detent)-variable flow to extend cylinder, proportional to lever movement; shuts off when returned to center position
-
Extend Detent
(rearward to "click" position)-timed flow to extend cylinder, based on detent time setting and at a rate set by flow rate control (See Adjusting Timed Detent and Adjusting Selective Control Valve Flow Rate in this section) Lever returns to neutral when released
-
Retract
(forward between Neutral and Retract Detent)-variable flow to retract cylinder,
|
proportional to lever movement; shuts off when returned to center position
-
Retract Detent
(forward to "click" position)-timed flow to retract cylinder, based on detent time setting and at a rate set by flow rate control. (See Adjusting Timed Detent and Adjusting Selective Control Valve Flow Rate in this section.) Lever returns to neutral when released
-
Float
(fully forward and down into locked position)-valve is open to sump to allow cylinder to extend or retract to allow implement to follow ground contour; must be pulled up and out of locked position to disengage
NOTE:
To relieve hydraulic pressure in implement, move SCV control lever to float position, while engine is running.
Push SCV lever covers (A) forward when SCV is not in use.
|