Maintenance - Husqvarna PG 530 Manuel D'utilisation

Maintenance

Used correctly, the machine is an extremely
low-maintenance and reliable.
This section covers the general maintenance items that
need attention on a periodic basis.
There are three main mechanical items to check:
1. Grinding Heads.
2. Planetary drive system.
3. Planetary seal.
Grinding heads
There are 2 different grinding head options:
1. Conventional/Demolition heads—designed for heavy
duty preparation grinding where an extremely robust
system is required.
2. Spring steel head system—designed more for fi nish-
ing or lighter grinding applications.
CONVENTIONAL/DEMOLITION HEADS
The below diagram illustrates the main parts compris-
ing this type of grinding head.
1. 2.
1. Head mate
2. Head plate
3. Head lock
4. Head spring
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- English
Maintenance
4. 3.
The interrelation between the above four components
enables a dynamic system which is both robust and
fl exible.
The head pins are fi xed to the head plate giving rigidity
and stability. The head mate is situated above the head
plate and is held in place by a series of holes – head
pin holes.
1.
2.
1. Head mate
2. Head pin hole
Between the head plate and head mate are 3 white
silicone springs which facilitate shock absorption and
fl exibility in the system.
The head pins are able to move within the head pin
holes, creating a shock absorber type system similar to
that in most motor vehicles.
Over an extended period of time, the head pin holes
wear open. Along with this, the head pins wear and
reduce in diameter. This combined wearing of the two
creates excessive movement or "slop" within the grind-
ing heads. This "slop" will eventually cause vibration
whilst the machine is operating.
Routine checks for slop in the grinding heads are
recommended. Life expectancy for grinding heads can
vary between 6 and 12 months depending on amount
of usage.
Replacement heads are available and simply bolt into
place when the old ones are removed.
1.
2.
1. Head plate
2. Head pins