Husqvarna PG680 Operator's Manual

Husqvarna PG680 Operator's Manual

Husqvarna grinder operator's manual
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Operator's manual
Please read the operator's manual carefully and make sure you
understand the instructions before using the machine.
Manual de
Lea detenidamente el manual de instrucciones y asegúrese de
entender su contenido antes de utilizar la máquina.
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.


Table of Contents

Summary of Contents for Husqvarna PG680

  • Page 1 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 PG680 PG820 HUSQVARNA CONSTRUCTION PRODUCTS GB ES DE FR...
  • Page 2: Table Of Contents

    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...
  • Page 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 under- stand the instructions before using the machine.
  • Page 4: Safety Instructions

    Under no circumstances may the machine be started without observing the safety instruc- tions. 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.
  • Page 5: Introduction

    Introduction The Husqvarna PG 680/820 fl oor surfacing machines are designed for wet or dry grinding of marble, terraz- zo, 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...
  • Page 6: What Is What

    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 - English What is what 8. Chassis/Frame 9. Handle bars 10. Control Panel 11. Handle bar adjuster...
  • Page 7: 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 move- ment between the chassis and head via the connection point at the lifting lugs and chassis pins.
  • Page 8: 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 grind- ing heads.
  • Page 9 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 Ceramic tile adhesive removal Carpet glue removal Epoxy paint removal Rain damaged concrete...
  • Page 10: Changing The Diamonds

    Changing the diamonds As different applications require different selections of diamond tools, there will be many occasions when the grinding discs need to be changed. Following is a guide for this procedure. Preparation 1. Ensure STOP/RUN switch is in STOP position as unintentional starting of machine while changing discs can result in serious injury.
  • Page 11: Variable Speed Drives/Frequency Converters

    Variable speed drives/frequency converters Variable speed drives/ frequency converters Each Husqvarna PG 680 & 820 is equipped with 2 variable speed drive or frequency converter. This unit is incorporated into the machine for the following reasons: 1. Functional • Manipulate incoming power to enable increase/ decrease in speed &...
  • Page 12 Variable speed drives/frequency converters Monitor screen OUTPUT FREQUENCY REF. FREQUENCY MOTOR SPEED MOTOR CURRENT MOTOR TORQUE MOTOR POWER MOTOR VOLTAGE DC LINK VOLTAGE The menu tree illustrated on this page outlines the important menu options that provide useful information for monitoring and diagnostic purposes when using the machine.
  • Page 13 The current limits (predetermined and set by Husqvarna Constructions Products) are as follows: 1. Large motor (which information is found on the large variable speed drive/frequency converter) - 25 amps.
  • Page 14: Faults And Trouble Shooting

    Have motor tested and replace if required. Check power supply and ensure correct voltage. Re-connect power to grinder. Check wiring in plugs connected to motor cables or inside connection boxes on motors. Have motor tested and replace if required.
  • Page 15: Faults And Trouble Shooting

    Faults and trouble shooting Further problems that may be experienced when using the grinder and potential solutions are as follows: Problem GRINDER IS HARD TO HOLD ONTO GRINDER SOUNDS LIKE IT IS OVERREVVING GRINDER IS JUMPING AROUND Possible Cause Not enough diamonds under the machine (if grinding thick glue or soft fl...
  • Page 16: Diamonds

    • Reduce pressure on each individual diamond seg- ment.- Reduce wear rate on diamond segments. • Reduce load on the machine and cause the grinder to draw less current. • Create a smoother scratch pattern (particularly on soft fl oors).
  • Page 17: Diamond Selection

    fi nished fl oor quality. There are basically two types of diamond confi gura- tions that can be used when using the grinder: 1. Full set of diamonds – when there are diamonds placed...
  • Page 18 Full and half sets of diamonds By changing the way the diamonds are set-up on the diamond holder discs, an operator can signifi cantly ef- fect the performance of the machine and therefore, the fi nished product. HALF-SET OF DIAMONDS When the diamonds are set-up as a half-set, they tend to follow the surface of the fl...
  • Page 19 Selecting the correct diamonds for your application The following suggestions cover the basic principles for diamond selection for different applications. Application Flatten fl oor - Hard concrete Flatten fl oor - Medium concrete Flatten fl oor - Soft concrete Ceramic tile adhesive removal Vinyl or Carpet glue removal - Hard concrete Vinyl or Carpet glue removal - Medium concrete Vinyl or Carpet glue removal - Soft concrete...
  • Page 20 Diamond selection Determining the hardness of concrete All concrete may feel hard (particularly if you fall over on it), so what do we mean when we talk about hard, medium and soft concrete? All concretes are measured by their compressive strength and depending on which part of the world you are from, different compressive strength indices (e.g.
  • Page 21: Maintenance

    Maintenance Used correctly, the machine is an extremely low-main- tenance 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.
  • Page 22 Spring Steel Heads The below diagrams illustrate the main parts comprising this type of grinding head. Diagram 1 1. Spring steel spring 2. Head plate 3. Cushion ring 4. Head mate Diagram 1. Spring Steel Head Diagram 2 1. Spring steel springs 2.
  • Page 23 Grinding Heads Drive System The grinder comes equipped with Dual Drive Technolo- gy™. As the grinding discs are driven by the large mo- tor via an internal belt, and because the belt is sealed inside the machine, there is no maintenance regarding this drive system until a major service (belt and bearing replacement) is due.
  • Page 24 Remove this bolt. Lift off machine cover to reveal chain ring and planetary seal. If planetary seal is worn or needs replacement, contact your Husqvarna Construction Products distributor for a new planetary seal replacement kit. Remove 2 bolts either side.
  • Page 25: Maintenance Schedule

    Maintenance schedule Item Action Check that head locks Tighten head locks and re-set in thread-locking com- are tight. pound if required (Suggested thread-locking compound Loctite 680) Inspect heads for slop/ Examine machine heads while machine tipped back. broken “fi ngers” if using Disconnect Planetary Drive motor (small motor) and run spring steel heads.
  • Page 26: Technical Data

    Technical Data Grinding width Grinding disc Weight Grinding pressure total Grinding pressure per disc Motor Power Power per grinding disc Grinding disc speed Planetary head speed Direction of rotation Power supply - English Technical Data PG 820 PG 680 820mm (32") 680mm (27") 3x270mm (10.5") 3x240mm (9.5")
  • Page 27: Technical Data

    Husqvarna Construction Products, SE-433 81 Göteborg, Sweden, tel: +46-31-949000, declares under sole responsibil- ity that the Husqvarna PG680/PG820 dating from 2007 serial numbers and onwards (the year is clearly stated on the rating plate, followed by the serial number), complies with the requirements of the COUNCILíS DIRECTIVE: - of June 22, 1998 ”relating to machinery”...
  • Page 28 1150943-20 ´®z+R~@¶0R¨ 2007-08-23 ´®z+R~@¶0R¨...

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