Husqvarna PG680, PG820 User Manual
GB
Operator’s manual
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
ES
DE
FR
Manual de
instrucciones
Lea detenidamente el manual de instrucciones y asegúrese de
entender su contenido antes de utilizar la máquina.
Bedienungsanweisung
Lesen Sie die Bedienungsanweisung sorgfältig durch und machen
Sie sich mit dem Inhalt vertraut, bevor Sie das Gerät benutzen.
Manuel d’utilisation
Lire attentivement et bien assimiler le manuel d’utilisation avant
d’utiliser la machine.
HUSQVARNA CONSTRUCTION PRODUCTS
Husqvarna
PG680
PG820
GB ES DE FR
Contents
English
Contents
Key to symbols 4
Safety Instructions 6
Introduction 7
Transport 7
Storage 7
What is what 8
Setting up/Operation 10
Changing the diamonds 12
Variable speed drives/
frequency converters 13
Faults and trouble shooting 16
Diamonds 18
Diamond selection 19
Maintenance 23
Maintenance schedule 27
Technical data 28
English - 3
Key to symbols
Key to symbols
The symbols below are used on the machine and in
this Operator’s Manual. It is important that the user
understands the signifi cance of these in order to work
with the machine safely.
Please read the operator’s manual
carefully and make sure you understand the instructions before using the
machine.
WARNING! Dust forms when grinding
which can cause injuries if inhaled. Use
an approved breathing mask. Always
provide for good ventilation.
Always wear:
Approved protective helmet
•
Approved hearing protection
•
Protective goggles or a visor.
•
Dust forms when grinding, which can
•
cause injuries if inhaled. Use dust
mask.
Always wear sturdy non-slip boots with
steel toe-caps.
Inspection and/or maintenance should
be carried out with the motor switched
off and the plug disconnected.
Visual check.
Regular cleaning is required.
This product is in accordance with applicable EC directives.
Always wear approved protective
gloves.
English - 5
Safety Instructions
Safety Instructions
WARNING
Under no circumstances may the machine be
started without observing the safety instructions. Should the user fail to comply with
these, Husqvarna Construction Products
Sweden AB or its representatives are free
from all liability both directly and indirectly.
Read through these operating instructions
and make sure that you understand the
contents before starting to use the machine.
Should you, after reading these safety instructions, still feel uncertain about the safety
risks involved you must not use the machine,
please contact your dealer for more information.
Please read the operator’s manual carefully.
•
Only qualifi ed staff should be allowed to operate
•
machinery.
Never use a machine that is faulty. Carry out the
•
checks, maintenance and service instructions described in this manual. All repairs not covered in this
manual must be performed by a repairer nominated
by either the manufacturer or distributor.
Never use the machine if you are tired, if you have
•
drunk alcohol, or if you are taking medication that
could affect your vision, your judgement or your coordination.
Never use a machine that has been modifi ed in any
•
way from its original specifi cation.
Be on your guard for electrical shocks. Avoid having
•
body contact with lightning-conductors/metal in the
ground.
Never drag the machine by means of the cord and
•
never pull out the plug by pulling the cord. Keep all
cords and extension cords away from water, oil and
sharp edges.
Make sure the cord is not pinched in doors, fences
•
or the like.
Check that the cord and extension cord are intact
•
and in good condition. Never use the machine if the
cord is damaged, hand it in to an authorized service
workshop for repair.
Do not use a rolled up extension cord
•
The machine should be connected to an earthed
•
outlet socket.
Check that the mains voltage corresponds with that
•
stated on the rating plate on the machine.
•
Always wear personal safety equipment such as
sturdy non-slip boots, ear protection, dust mask and
approved eye protection.
•
The machine should not be used in areas where
potential for fi re or explosions exist.
Machinery should only be started when grinding
•
heads are resting on the ground unless carrying out
a testing procedure as outlined in this manual.
The machine should not be started without the
•
rubber dust skirt attached. It is essential a good
seal between machine and fl oor be established for
safety, especially when operating in dry grinding
applications.
When changing the grinding discs ensure power
•
supply to the unit is OFF by engaging the Emergency Stop button and the power-plug disconnected.
The machine should not be lifted by handles, mo-
•
tor, chassis or other parts. Transportation of the
machine is best done on a pallet / skid to which the
machine must be fi rmly secured.
Ensure the cord is behind you when you start to use
•
the machine so that the cord will not be damaged.
At no time should lifting of machinery be attempted
without mechanical means such as a hoist or fork
lift.
WARNING!
Overexposure to vibration can lead to circulatory damage or nerve damage in people
who have impaired circulation. Contact your
doctor if you experience symptoms of overexposure to vibration. These symptoms include
numbness, loss of feeling, tingling, pricking,
pain, loss of strength, changes in skin colour
or condition. These symptoms normally appear in the fi ngers, hands or wrists.
Extreme caution must be used when moving
•
machinery by hand on an inclined plane. Even the
slightest slope can cause forces/momentum making
the machinery impossible to brake manually.
6 - English
Introduction
Introduction
The Husqvarna PG 680/820 fl oor surfacing machines
are designed for wet or dry grinding of marble, terrazzo, granite and concrete. Their applications range from
rough grinding through to a polished fi nish.
This manual covers the Husqvarna PG 680/820 series
of fl oor grinders equipped with twin motor drive here
after referred to as Dual Drive Technology™.
It is extremely important all users be familiar with the
contents of this manual before
commencing operation of either machine. Failure to
do so may result in damage to machinery or expose
operator to unnecessary dangers.
IMPORTANT!
The machine should not be lifted by handle,
motor, chassis or other parts. Transportation
of the machine is best done on a pallet/skid
to which the machine must be fi rmly secured.
Do not attempt to slide the tines/forks from
a fork lift under grinding heads unless on a
pallet/skid. Failure to do so can cause irreparable damage to grinding heads of machine
and internal parts.
It is recommended that machinery be transported with
a set of diamonds attached at all times to ensure protection of locking mechanism for diamond plates.
IMPORTANT!
Only staff that have received the necessary
education, both practically and theoretically
concerning their usage should operate the
machinery.
Transportation
The machine comes equipped with inbuilt advanced
electronic systems called variable speed drives or
frequency converters. These drives enable the variable
speed and direction component of each of the motors.
The drives are located in the steel cabinet mounted on
the machine chassis.
As with all electronic equipment, the drives are sensitive to excessive vibration, rough treatment and high
levels of dust. Much care and attention has been given
by the manufacturer to ensure maximal protection is
given to the drives. Note the shock absorbing mounting system used to mount the steel cabinet on the
machine chassis/frame.
Storage
The machine should always be stored in a dry place
when not in use.
When transporting, it is important to ensure the machinery is properly secured at all times to eliminate
“bouncing” of the variable speed drives. Ensure the
chassis or frame section of the machine is secured
down at all times when in transit.
The machine should always be transported under
cover limiting the exposed to natural elements – in
particular rain and snow.
English - 7
What is what
1.
3.
2.
4.
5.
11.
10.
9.
6.
7.
What is what
1. Hour counter
2. Electrical cabinet
3. Planetary head motor 1.5kW/1Hp
4. Grinding/Satellite heads motor 11kW/15Hp
5. Lifting lugs
6. Cover/Shroud
7. Skirt
8.
8. Chassis/Frame
9. Handle bars
10. Control Panel
11. Handle bar adjuster
8 - English
What is what
The machine can be divided into two main parts. These
can be identifi ed as follows:
1. Chassis/Frame section – comprising handle bars,
electrical cabinet, steel frame and wheels.
2. Head – comprising of motors, cover, grinding/satel-
lite/
planetary heads and internal components.
The machine has been manufactured to allow movement between the chassis and head via the connection
point at the lifting lugs and chassis pins. This movement is important during the grinding process as it
creates a “fl oating” effect for the head.
The fl oating gives the head a self-leveling effect, negat-
ing the need to adjust the height of the head as the
machine passes over fl oor areas with different slopes
or undulations.
Control panel
The control panel consists of a number of switches and
dials giving 8 separate controls (see picture).
IMPORTANT!
Planetary head and grinding heads are set
to both turn in the same direction (i.e. both in
clockwise rotation or both in counter-clockwise rotation).
Clockwise rotation of speed control will increase speed of planetary head and grinding
heads.
Grinding satellite/ heads
Planetary head
Power - This button, when depressed, will turn on
power supply to the unit when the EMERGENCY
STOP button has been released.
Emergency Stop - When pushed will immediately
shut down machine by totally stopping power supply to
drives/ frequency converters in electrical cabinet.
Head Speed - Direction control for planetary head rotation.
Fwd/Rev (Yellow) - Direction control for planetary head
rotation.
Disc Speed - Speed control for grinding heads.
Fwd/Rev (Red) - Direction control for grinding heads.
Reset - Will clear fault function/error message on
drive/frequency converter (located in electrical cabinet)
in case of fault occurring.
Stop/Run - To start or stop machine during normal
operation.
IMPORTANT!
Dust extraction port
It is important to use the STOP/RUN switch
to control the running of the machine, not
the EMERGENCY STOP button. Each time
the EMERGENCY STOP button is pressed
it shuts down the drive/frequency converter.
Frequently powering up and down of the
drive/frequency converter will reduce the life
span of the drive/ frequency converter.
Control panel
English - 9
Setting up/Operation
Setting up/Operation
Position grinder on the working area. Make sure there
are diamonds underneath machine and that the head
locks/shear pins are tight.
IMPORTANT!
When using the machine, each grinding head
must always have the same diamond type
and number of diamonds as the other grinding heads. Each grinding head must have
diamonds the same height as the other grinding heads.
Adjust rubber skirt so that a good seal is established
between the fl oor and head of machine (see picture
below). Ensure join in skirt is at the front of the machine. Setting of the skirt is essential to obtain good
dust extraction and eliminate the possibility of airborne
dust when dry grinding.
Powering up machine
i. Ensure the STOP/RUN switch is set on Stop
(rotate counter clockwise).
ii. Plug power supply to machine. Only turn power on
at
switch once fully connected.
Set handle to most comfortable working height using
adjustment lever.
IMPORTANT!
It is recommended that this height be set as
close as possible to the height of the operator’s hip bone. When the machine is running,
there will be a grinding force/pull to one side
that can be felt through the handlebars. Use
the hip to resist this force instead of trying to
control this through the arms (such positioning will be much easier for the operator using
the machine over prolonged periods of tim.
iii. Disengage Emergency Stop button (twist clockwise).
iv. Depress Power button. On doing so, a soft “clunk”
should be heard to come from within the electrical cabinet. This indicates the line contactors have engaged,
supplying power to the drives/frequency converters.
Setting Speed and direction
On the control panel there is a FORWARD/REVERSE
and Speed dial knob. Generally, when starting the
machine for the fi rst time on any given application, it is
advised the speed setting should not exceed 7, initially.
When the operator is comfortable with the application,
speed may be increased.
10 - English
Setting up/Operation
Speed and direction setting is often a matter of personal 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
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
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 settings must be in the same directions and also
direction specifi c is when using the PIRA-
NHA™ scraper tools. In this particular application the setting must be in the REV/REV
direction.
Direction of rotation
The correlation between FWD/REV & Clockwise/Counter clockwise rotation can be said as follows if looking
at the grinding discs from underneath the machine:
1. REV—Clockwise.
2. FWD—Reverse.
FWD 8-10 FWD 3-5
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 between 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 maximal exposure of the diamond crystal.
Once both a speed and direction have been
nominated, switch on dust extraction or vacuum device.
Planetary
head
speed
Grinding disc
direction
Grinding disc
speed
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.
IMPORTANT!
It is highly recommended to use the Husqvarna 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 accelerate to the selected speed over a period of 5 seconds
English - 11
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