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Grinding Heads Drive System
The Husqvarna PG 530 comes equipped with Dual
Drive Technology™. As the grinding discs are driven
by the large motor via an internal belt, and because the
belt is sealed inside the machine, there is no mainte-
nance regarding this drive system until a major service
(belt and bearing replacement) is due. This is typically
following 12-36 months of operation.
Planetary Drive System
The second component to the Dual Drive Technol-
ogy™ system is the planetary head drive system which
is powered by the secondary or small motor and
gearbox arrangement. This system is on the outside of
the machine and will require routine maintenance.
The planetary drive system can be seen as illustrated
diagram 1.
Diagram 1
1. Grinding heads motor
2. Motor terminal box
3. Machine cover
4. Gearbox mounting bracket
5. Gearbox fl ange bracket
6. Gearbox
7. Motor terminal box
8. Planetary drive motor
IMPORTANT!
Lubrication of this system will cause dust to
build up in chain ring and drastically shorten the
life of both the chain ring and planetary drive
sprocket.
Diagram 1. Planetary Drive System
Beneath the gearbox and concealed by the mounting
brackets and machine cover, there is a planetary drive
sprocket situated on the output shaft of the gearbox.
This planetary sprocket engages with the chain ring
(also located beneath the machine cover) and
together form the main drive mechanism for the plan-
etary drive system. This system is a dry system (i.e. it
is not required for there to be lubrication between the
planetary drive sprocket and chain ring), to allow any
dust that may come into contact with the chain ring to
fall back out again.
1. Planetary drive sprocket
2. Gearbox fl ange bracket
Diagram 3
1. Gearbox mounting bracket
2. Machine cover
3. Chain ring
Diagram 4
1. Planetary seal
The chain ring and planetary drive sprocket are located
beneath the cover of the machine, however on the
outside of the machine, there lies the potential that they
can be exposed to dust and other debris created during
the grinding process. In order to prevent this as much
as possible, a planetary seal has been installed to stop
dust and other particles from coming into contact with the
planetary drive mechanism.
Maintenance
2.
4. 5.
3.
1.
6.
7.
8.
Diagram 2
Diagram 3
1. 2. 1. 2. 3.
Diagram 4
Planetary seal - closeup
1.