8999124EN: v2.0 27/10/2021
35
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
5.1
Periodic Maintenance
In order to guarantee proper operation of the Mulcher and improved operator safety, it is necessary to
periodically intervene with controls and maintenance operations listed in the table shown below.
Upon The
First Use
The First
8 Works
Hours
Every 8
Work
Hours
Every 50
Work
Hours
Every 400
Work
Hours
General check
X
X
Tightening of screws and bolts
X
X
X
Checking for wear and tear on teeth and
their locking screws
X
X
X
Greasing yokes and Input PTO shaft
X
X
X
Greasing pivot points
X
X
Verify gearbox oil level
X
X
Complete change of gearbox oil
X
X
Check transmission belt tension
X
X
Tightening taper locks and pulleys (with
torque wrench) (44Nm)
X
X
Table 3
WARNING!
The machine must be checked by an authorised concessionary if any of its parts are worn
or in poor condition.
WARNING!
Replace the hydraulic hoses each time they are damaged or, in any case, before the sixth
year. The used hydraulic oil must be properly collected and must not be dispersed into the environment
since, according to the laws in force, it is
classified as dangerous waste and for this reason it must be
given to the proper collecting centres. Please, refer directly to the closest company for the collection of
the used oils.
5.1.1
Maintenance On The Teeth
WARNING!
Spearhead is not liable for damage caused by vibrations generated by rotor shafts which
have not been balanced after the teeth have been replaced. Any requests for replacement under
warranty or reimbursement for damage caused due to the rotors malfunctioning will not be accepted.
The teeth with which the Mulcher is equipped are suitable for working on grounds of normal condition.
It is
mandatory
to check their integrity and the degree of wear every day. Should the tooth break or get damaged
during work,
they must be replaced
immediately
.
Replacing a single tooth is generally not recommended
.
This can only be done when all other teeth are in excellent condition and in any case, in order not to compromise
the proper operation of the rotor,
it is mandatory
to also replace the opposite tooth so as not to cause an
imbalance in the rotor.
It is recommended
to always replace all the teeth and not just the damaged ones, in
order to guarantee proper operation.
After changing the teeth,
it is mandatory
to subject the rotor to electronic balancing to guarantee the Mulcher
works properly, free from vibrations that can cause serious damage to the machine.
To replace worn or broken teeth it is necessary to:
•
position the Mulcher
and tractor on flat ground;
•
raise the Mulcher with the linkages to the maximum height possible;
•
place adequate support stands under the Mulcher on both sides for the machine to be perfectly stable;
•
stop the tractor and put on the emergency brake;
•
be equipped with adequate spanners and proceed with the replacement of the teeth: forcibly tighten the
securing bolts;
•
before installation, weigh the individual teeth
as differences in weight are inevitable;
•
select pairs of teeth that have the same weight and mount them on the rotor in opposite diametrical
positions.
The quality, integrity of the Mulcher and its safety depend on the care dedicated to the teeth, which must be
replaced immediately if damaged. Normal wear is exceeded and enhanced when working on sandy terrain or if
