8999145EN: v1 26/02/2020
24
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
4
Cutting Units
4.1
Mounting The Cutting Unit
With the machine assembled, the cutting unit can now be fitted to the end of the arms. To do this;
The Twiga Carrier includes a cowl interface bracket that mates to the cutting units bolt holes.
The cutting unit itself will typically be stored on a pallet, on the ground, with its blades flat to the pallet.
With the Twiga Carrier attached to the prime mover (see Section 3.5), the cowl bracket should be
angled so that the mounting plate is parallel with the ground (Figure 4.1.1.3)
Figure 4.1.1.3
– Plate Parallel To Ground
Lower the arm set via the prime mover’s controls, and approach the cutting unit slowly using the lowest
gear selection possible.
Once the arm set is as close as possible to the cutting unit, the final adjustment can be made by the
operator once they have dismounted from the prime mover. Drag the pallet along the ground to
accurately line the holes up (Figure 4.1.1.5)
Insert the set screws and tighten to 80Nm torque.
Connect the ¾” motor hoses from the Twiga Carrier to the cutting unit, using the male-male adaptors
included
Re-check all hydraulic connections and ensure all fasteners are secure and tight.
The Twiga Carrier can now be lifted via the prime mover hydraulics, ready for cutting.
4.2
Connecting The Cutting Unit Motor
Connection of the drive hoses to the cutting unit motor will determine the direction of rotation of the cutting rotor
shaft.
4.2.1
Checking Cutting Disc Rotation Direction
Having connected the hoses to the motor supplied, then;