Spearhead
Q15s, Q18s & Q21s
12
12
12
12
Operation
Operation
Operation
Operation
Engage the PTO only when the tractor engine is at low revs to prevent shock
damage to machine. Slowly increase the engine revs to achieve the standard 540
rpm PTO speed. If at any time serious vibration occurs, stop the engine
immediately and check that no flails are missing, (following all safety
precautions). The cause must be found and rectified immediately or other
components may be affected.
When in work, lower the machine to the ground carrying all its weight on the rear
roller, allowing the machine to follow the contours of the ground. Select a sensible
forward speed bearing in mind the density of growth, the terrain, and the available
horsepower, taking extra care when turning, particularly on slopes. When turning it is
not necessary to lift the machine off the ground but instead allow sufficient room to
turn in a large radius. The machine only needs to be raised when turning a tight
corner, or reversing over dense undergrowth.
Quality of finish is determined by the forward speed i.e. a slow speed will produce a
high quality of cut, whereas faster forward speeds are used when high output is first
priority.
When cutting in extreme conditions or when small stumps, stones and other such
solid objects are likely to be found it is recommended the operator reduces the
engine revs to allow the flails to pivot more easily when striking solid objects, and
proceed with caution.
