SP4012 MACHINE CONTROLS
14
GEAR SELECTOR
• Push switch up to run machine at high gear and
push switch down to run machine at low gear.
Machine has more climbing power in low gear.
MUST BE IN HIGH GEAR TO CHANGE
INTO FREEWHEEL.
FREEWHEELING VALVE
• Releases wheels from the drive system by
overriding the hydraulics. To engage, push
knob in and turn a quarter turn counter-
clockwise. Tongue extension can be
accomplished by setting the lever to
freewheeling position. Always make sure that
the ground stake is in the ground before
placing machine in free wheel. To disengage
freewheel, push knob in and turn clockwise
back to original position. Knob will pop out
when freewheeling is disengaged.
FREEWHEEL WILL ONLY OPERATE
WITH GEAR SELECTOR IN THE HIGH
POSITION.
TRAVEL SPEED ADJUSTMENT
• Adjust travel speed for smooth operation. Turn
valve counter-clockwise to decrease travel
speed.
SWING SPEED ADJUSTMENT
• Adjust swing speed for smooth operation. Turn
valve counter-clockwise to slow cutter head
swing. Close valve by turning clockwise to
allow head to move side to side at low RPM.
Gear Selector
Freewheeling
Valve
Travel Speed
Adjustment
Swing Speed
Adjustment
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