8999145EN: v1 26/02/2020
21
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
The plates shown are supplied with the loader arms, and are then bolted to
the Twiga Carrier DIN plate
– this is easiest with the Twiga Carrier stood on
its transport legs, at a comfortable height to work on. Once the fasteners
are tightened up (to the torque specified in Section 4, the arm is ready to be
mounted on the loader. Follow these steps to complete mounting:
Position the Twiga Carrier on its support legs, with the DIN plate
facing the prime mover.
Drive the prime mover towards the Twiga Carrier, with the arm
lowered
Once close enough, raise the arms slowly to engage the top hook
support
Extend the shot-bolt locking mechanism to lock the DIN plate in position
The hydraulic hose connections then need to be made. The prime mover or front loader typically has
connections for these behind and above the loader plate.
Connect the two 3/4” BSP hoses that supply the saw head to the appropriate quick release coupling
on the prime mover
If fitted, also connect the two ¼” BSP hoses for the head angling ram to the appropriate quick release
ports on the prime mover
Check that the spool valve lever in the prime mover operates the cowl angling in the required direction
– if necessary swap the ports the hoses are connected to on the prime mover
Make sure that the head is clear of objects, property and personnel, and then carefully engage the saw
head by moving the spool valve lever in the prime mover corresponding to the ¾” BSP circuit
Let the saw head run for 30 seconds at full speed, and then shut the prime mover down. Check that
there are no leaks from this circuit
– tighten any loose fittings where oil is seen to be leaking.
Next, check the head angling ram operation by moving the appropriate lever in the cab of the prime
mover. Note that the initial operation may be jerky and sudden as any air is vented out of the system.
Check that there are no leaks from this circuit
– tighten any loose fittings where oil is seen to be
leaking.
Once the operator is happy that the controls move in the correct sense compared to the lever
movement, the machine is ready for work.
Figure 3.5.1
