Spearhead QHD Flail Mowers
12
Front Linkage Mounting
Simply remove the clamping bolts and revolve the standard ‘A’ frame through 180
degrees so the linkage mounting pins are facing the rear of the mower. The
hydraulic ‘A’ frame is double sided.
Tractor front PTO’s has no standard rotation so it may be necessary to turn the
gearbox through 180 degrees (top to bottom), to compensate for this irregularity. It is
important the rotor rotates (Fig. 5a) to ensure the flails cut.
OPTIONAL – Wheel kits are available for height control, recommended for all front
mounted machines both standard and hydraulic models.
540 or 1000 RPM
If the tractor has only 540 RPM. PTO output speed, it is possible to compensate by
swapping the top drive pulley onto the rotor and rotor pulley to the top drive shaft i.e.
smaller pulley driving the larger pulley will act as a reducer (Fig. 5b). Never operate
the PTO at 1000 RPM with the larger pulley driving the smaller rotor pulley.
This will drive the rotor at higher speed and will result in severe damage to the
machine.
Fig. 5a – position of pulleys for 540RPM. Fig. 5b – position of pulleys for
1000RPM
A. Rotation Anti-Clockwise
B. Shaft Pulley 190mm
C. Shaft Pulley 250mm
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