Husqvarna PG820 User Manual

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English -
 11
Speed and direction setting is often a matter of per-
sonal choice. Operators are encouraged to experiment 
to fi nd which settings best suit the given applications. 
The following table lists some suggested set-ups for 
different applications.
Application
Planetary 
head 
direction
Planetary 
head
speed
Grinding disc 
direction
Grinding disc 
speed
Ceramic tile adhesive removal
FWD
6-7
FWD
8-10
Carpet glue removal
FWD
5-7
FWD
8-10
Epoxy paint removal
FWD
5-10
FWD
8-10
Rain damaged concrete
FWD
7-10
FWD
8-10
Smoothen exposed aggregate
FWD
7-8
FWD
8-10
Lippage removal in terrazzo/stone tiles
FWD
5-7
FWD
8-10
Concrete polishing with resin bond pads
FWD
10
FWD
8-10
PIRANHA™ scraper tool
REV
3-5
REV
3-5
FLEXOR™ fl exible heads
FWD
5-7
FWD
5-7
Bushhammer/Scarrifi er tools
FWD
5
FWD
5-7
Re-grouting procedure during HiPERFLOOR™ 
process
FWD
8-10
FWD
3-5
IMPORTANT!
In the above table, FWD & FWD are listed 
together to indicate direction settings in the 
same direction (i.e. It can also be REV/REV). 
The only application where direction set-
tings must be in the same directions and also 
direction specifi c is when using the PIRA-
NHA™ scraper tools. In this particular ap-
plication the setting must be in the REV/REV 
direction.
Direction of rotation
The correlation between FWD/REV & Clockwise/Coun-
ter clockwise rotation can be said as follows if looking 
at the grinding discs from underneath the machine:
1. REV—Clockwise.
2. FWD—Reverse.
As mentioned, when the machine is in operation it will 
“pull” to one side. The direction of pull is determined by 
the planetary head direction of rotation. The head of 
the machine will pull to the right (and therefore, will be 
felt on the right hip of the operator) when the planetary 
head is set in the REVERSE direction.
This sideways pull can be very useful when grinding, 
particularly along a wall. Set the machine so that it 
pulls towards the wall, and then control the machine so 
it can just touch the wall. This will ensure a grind close 
to the wall or object.
Direction is also a matter of personal preference. It 
should be noted, however, that when both grinding 
discs and planetary heads are running in the same 
direction, a more powerful grinding force is created be-
tween the diamond abrasives and fl oor being ground. 
The end result is higher productivity than when the 
discs are set to run in opposite directions. It is here 
that you will also experience the beneift of Dual Drive 
Technology™.
Production tip - To improve the cutting effi ciency of 
diamonds, change directions on a regular basis. This 
will work both sides of the diamond crystals, keeping 
the abrasives as sharp as possible by creating maxi-
mal exposure of the diamond crystal.
Once both a speed and direction have been 
nominated, switch on dust extraction or vacuum de-
vice.
IMPORTANT!
It is highly recommended to use the Husq-
varna            DC 5500 dust extraction system 
for complete dust control.
Standing behind machine with handlebars set as 
described earlier, apply a small amount of downward 
pressure on the handle. Switch the machine to run 
mode using the STOP/RUN switch on the control 
panel. The machine should start smoothly and acceler-
ate to the selected speed over a period of 5 seconds
Setting up/Operation