Using SCV Control Levers

RXA0056516

causym 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.

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