8999123: v1 18/06/2018
Page 5.3 of 5.5 pages
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
The quality and integrity of the mulcher and its safety depend on the how the Widia teeth are cared for. They must be
replaced immediately when damaged. Normal wear is exceeded and accentuated when operating on sandy terrains or
if the mulcher is positioned too low and frequently bumps against any obstacles, which can lead to distortions or cracks
in the Widia teeth.
Tooth damage inevitably leads to worse work quality, increased vibrations, possible damage to the mulcher, as well as
partial or total breakage of the Widia teeth with consequent dangerous high-speed projection of metal fragments in the
area the machine is operating.
It is mandatory to make sure, when replacing the Widia teeth, that the hole for the tool lynch pin seat is not oval-shaped
and does not exceed the original diameter by more than
2 mm
.
For Widia teeth; see Figure 5.1:
- Tooth wear is directly proportional to the work done.
- The fixing of the tooth is performed using two screws, see Figure 5.1. Each time you replace the tooth also must be
replaced the relative screws.
CAUTION!
Only use original spare parts
Figure 5.1
5.1.2
Belt maintenance
The driving force is transmitted to the mallets holder rotor of the mulcher by belts with adjustable tension. From time to
time, or if the belts malfunction or slide, check the tension of the transmission belts from the special slot and, if
necessary, replace them.
With reference to Figure 5.2, operations to be carried out are the following:
5.1.2.1 Remove the nuts fastening the protective casing;
5.1.2.2 Turn the tie rod screw (A) to adjust the belts tension;
It is advisable to be equipped with a metal ruler of adequate length, and by placing it on the edge of the two pulleys, it
must touch all four edges of the pulleys themselves.
Press on the belts, in the central area between the two pulleys, with a force of 4/5kg: the force must cause a
deformation on the individual belt of 1cm.
At this point:
5.1.2.3 Tighten screw (A) and replace the protective casing removed earlier;
The belts are stretched when being worked over time: when replacing a worn or broken belt, for a correct distribution of
forces,
it is mandatory
to replace the entire set of belts. The replacement part number is ZA00109, with x10 being
required.
