8999124EN: v2.0 27/10/2021
22
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
Figure 6
Use appropriate protective gloves to move the tractor until the tractor lower link arms are inside the
plates (A) and (B). Insert the pin into the pre-set hole and secure it with the split pins.
Switch the tractor off and engage the parking brake.
Lock the lower link arms on the tractor with the appropriate chains and parallel tighteners: this
precaution must take place to avoid any sideways movement of the Mulcher.
Engage the Input PTO shaft and make sure that it is perfectly locked on the power take-
off.
Verify that the protection rotates freely and secure it with the appropriate chain. Remove the support
from the Input PTO shaft.
Connect the top link (C), securing it with the appropriate pins and split pins.
Use the adjustable top link to correctly adjust the pitch angle of the front of the machine, making sure
that the skid of the Mulcher is parallel to the ground. This is very important to obtain parallelism
between the Mulcher power take-
off and the tractor power take-off.
Operating in these conditions means limiting the stresses on the power take-
off and life of the Input
PTO shaft and the Mulcher itself.
The correct position of the tractor/Mulcher unit is such when the Mulcher is at a distance from the
tractor so that the input PTO shaft does not extend beyond 5-10 cm from the maximum closing
position.
Engage the PTO and accelerate up to a minimum of 400 rpm. Then test lift the Mulcher to verify
proper operation.
3.2.3
Input PTO Shaft
It is mandatory
to only use the input PTO shaft supplied as standard by Spearhead; see Figure 7. The
Company assumes no liability if an input PTO other than the one supplied is used.
DANGER!
An input PTO shaft applied to a tractor is a mechanical part, which, when operating, can be
extremely dangerous for those using it. Therefore, you must be extremely careful regarding operations
that involve these mechanical parts.
CAUTION! Before starting the power take-
off, ensure that the rotation speed is the same as that
required for the Mulcher (540 / 1000 rpm).
