Specifications

7500 MACHINE OPERATION
19
• Lift boom and remove boom chock block.
• Reduce engine RPM to idle.
• Raise cutter head clear of stump.
• Engage cutter head drive belts by pushing down
on engagement handle to relieve pressure on
engine slide stop. Lift slide stop and slowly pull
handle back to engage belts.
• Increase engine RPM to full.
• Test controls for proper operation, speed, and
unobstructed movement.
• Cutter head swing speed should be adjusted to a
rate that will allow cutter wheel to pass through
stump smoothly. If jerking, bouncing or
significant drops in engine speed occur, swing
rate is too rapid and must be decreased.
• Swing speed should be determined and adjusted
with the controls in the full open position.
• A counter-rotating valve is located within the
hydraulic system to adjust this speed. Turning
the handle counter-clockwise will open the
bypass and slow swing action. Turning it
clockwise will increase swing rate.
SWING SPEED
ADJUSTMENT FOR
MANUALLY
OPERATED MACHINE
SWING SPEED ADJUSTMENT FOR
REMOTE MACHINE
LIFT ENGINE SLIDE
LOCK HANDLE
PULL THE ENGAGEMENT HANDLE
BACK SLOWLY TO ENGAGE
CUTTER WHEEL