Spearhead Multicut
620
15
15
15
15
Levelling
Levelling
Levelling
Levelling –
–
–
– Wings LH & RH
Wings LH & RH
Wings LH & RH
Wings LH & RH
This is most critical with low cutting heights (75mm and below). Machines roll in work
due to ground contours, softer ground supporting the wings and suspension give. It is
advisable to prevent regular and excessive contact of particularly the wing blades
and anti-scalp disk with the ground. This can cause:
•
Significantly faster wear of blade, anti-scalp disk and skids
•
The additional load can lead to premature clutch wear and gearbox failures
With the machine in the working position and the wings folded down it may be
necessary to alter the height of the wing to ensure each rotor is cutting level.
There are several ways of adjusting the wing height on a Spearhead 620 mower.
These adjustments are necessary to compensate for wear and also variation of
tolerances. We recommend the wings are set 12 – 25mm (½ “– 1”) higher than the
centre chassis, to maintain a level cut. Generally the machine is with the wings ½
inch (12mm) higher than the centre section.
Coarse Adjustment (rarely required)
Coarse adjustment is made via the serrated disc located on each wing axle, move
ball end rearwards to raise wing. Ensure the teeth fully engage. We recommend lock-
tight on the Allen bolt and torque of 500Nm.
After making adjustments to the machine and before re-measuring and rechecking
working heights, shunt the machine backwards and forwards a couple of times to
ensure suspension and all pivots are settled into the working positions.
Setting Up Your Machine
Warning
The machine is set at the factory with the centre deck 1” (25mm) higher at
the front and the wings ½” (12mm) higher to the centre section, when
mounted on the tractor drawbar at 16” (400mm).
When operating over uneven ground it is recommended to raise the front
of the machine by adjusting the tie bars to prevent scalping or damage to
the blades.
Fine Adjustment
Fine adjustment is made by releasing
the locking nut and using the
turnbuckle located between the axles.
Lengthen to lower the wing, shorten to
raise the wing. Retighten the locking
nut.
(Note do not expose more than 25mm
of thread as the ball ends will foul in
the clevis when fully lowered)
