Spearhead Star-Cut
910/1210
Operation
Once ready for work, fully raise the mower cutting height and engage the PTO with
the tractor engine at low revs to prevent shock damage to the machine. Slowly
increase the engine revs to achieve the recommended PTO speed of 1000RPM. As
indicated by the decal on top of the centre guard. If at any time serious vibration
occurs,
stop the engine immediately and check the blades, following all safety
precautions
. Lower the mower to the preset cutting height, select a sensible forward
speed bearing in mind the density of growth, the terrain, and the available
horsepower.
The quality of finish is determined by the forward speed, i.e. a slow speed will
produce a high quality of cut, where as faster forward speeds are used when high
output is first priority.
When in work, always ensure the hydraulic spool valve that operates the 1
st
main
wing rams is in float position to enable the wings to freely follow all contours of
ground (Fig. 6), and that the 2
nd
middle wing rams are locked with the spool in a
hold/closed position.
Fig. 6 contours of the ground
Warning
The maximum working angle the wings can safely be run
is only 7.5 degrees below horizontal when the machine is
fitted with double “Star-Cut” blades. If the wings are
allowed to drop more than 7.5 this will result in impact
damage from the rotating blades striking the deck.
MAX
7.5
degrees
17
