PG 400 - Floor grinder HUSQVARNA - Free user manual and instructions

USER MANUAL PG 400 HUSQVARNA

manual GB Operator’s Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.

HUSQVARNA CONSTRUCTION PRODUCTS

KEY TO SYMBOLS

Symbols on the machine: Symbols in the operator’s manual: WARNING! The machine can be a dangerous tool if used incorrectly or carelessly, which can cause serious or fatal injury to the operator or others. Inspection and/or maintenance should be carried out with the motor switched off and the plug disconnected. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. Always wear approved protective gloves. Regular cleaning is required. Wear personal protective equipment. See instructions under the heading ”Personal protective equipment”. Visual check. WARNING! Dust forms when grinding, which can cause injuries if inhaled. Use an approved breathing mask. Always provide for good ventilation. Starting: Reduce the pressure between grinding disc and floor by pushing down on the handle without raising the grinding unit off the ground. This product is in accordance with applicable EC directives. Environmental marking. Symbols on the product or its packaging indicate that this product cannot be handled as domestic waste. By ensuring that this product is taken care of correctly, you can help to counteract the potential negative impact on the environment and people that can otherwise result through the incorrect waste management of this product. For more detailed information about recycling this product, contact your municipality, your domestic waste service or the shop from where you purchased the product. Other symbols/decals on the machine refer to special certification requirements for certain markets. 2 – English Protective goggles or a visor must be worn. What is what on the grinder?

Electric box 11 Screws, cover

Cover 12 Grinding unit - PG 280 SF

Crank for adjusing grinding pressure 13 Grinding unit - PG 400 SF

Lifting eye Connection for vacuum cleaner 18 Stop button

Wheel set 19 Locking knob for handlebar adjustment 10 Cover locking knob 4 – English 20 Operator′s manual SAFETY INSTRUCTIONS Before using a new grinder

Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.

Grinders PG 400 SF and PG 280 SF are designed for surface removal of glue/adhesive residues, putty and the like from concrete floors and grinding and flattening out concrete floors. SF stands for single disc, fixed speed.

The machine can cause serious personal injury. Read the safety instructions carefully. Learn how to use the machine.

Personal protective equipment Only staff that have received the necessary education, both practically and theoretically concerning their usage should operate the machinery.

WARNING! You must use approved personal protective equipment whenever you use the machine. Personal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen. Ask your dealer for help in choosing the right equipment.

Protective goggles or a visor

Heavy-duty, firm grip gloves.

Tight-fitting, heavy-duty and comfortable clothing that permits full freedom of movement.

Boots with steel toe-caps and non-slip sole.

Always have a first aid kit nearby. Always use common sense It is not possible to cover every conceivable situation you can face. Always exercise care and use your common sense. Avoid all situations which you consider to be beyond your capability. If you still feel uncertain about operating procedures after reading these instructions, you should consult an expert before continuing. Do not hesitate to contact your dealer if you have any more questions about the use of the machine. We will willingly be of service and provide you with advice as well as help you to use your machine both efficiently and safely. Let your Husqvarna dealer regularly check the machine and make essential adjustments and repairs. All information and all data in the Operator’s Manual were applicable at the time the Operator’s Manual was sent to print.

WARNING! Under no circumstances should you modify the original design of the machine without approval from the manufacturer. Always use original spare parts. Unauthorized modifications and/or accessories may lead to serious injury or death to the user or others. WARNING! Use of products which cut, grind, drill, sand or shape material can generate dust and vapors which may contain harmful chemicals. Know the nature of the material being worked on and wear appropriate dust mask or respirator protection. English

SAFETY INSTRUCTIONS General safety precautions

Personal safety WARNING! This section describes basic safety directions for using the machine. This information is never a substitute for professional skills and experience. If you get into a situation where you feel unsafe, stop and seek expert advice. Contact your dealer, service agent or an experienced user. Do not attempt any task that you feel unsure of!

Do not use the machine without first reading and understanding the contents of this Operator’s Manual. Work area safety

Do not use the machine in bad weather, such as dense fog, rain, strong wind, intense cold, etc.

Keep work area clean and well lit. Cluttered or dark areas invite accidents.

The machine should not be used in areas where potential for fire or explosions exist. Electrical safety

WARNING! There is always a risk of shocks from electrically powered machines. Avoid unfavourable weather conditions and body contact with lightning conductors and metal objects. Always follow the instructions in the Operator’s manual to avoid damage. 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. Such symptoms include numbness, loss of feeling, tingling, pricking, pain, loss of strength, changes in skin colour or condition. These symptoms normally appear in the fingers, hands or wrists. These symptoms may be increased in cold temperatures.

Wear personal protective equipment. See instructions under the heading ”Personal protective equipment”.

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 co-ordination.

Never allow anyone else to use the machine without first ensuring that they have understood the contents of the operator’s manual.

All operators shall be trained in the use of the machine. The owner is responsible for ensuring that the operators receive training.

People and animals can distract you causing you to lose control of the machine. For this reason, always remain concentrated and focused on the task.

Be careful as clothing, long hair, and jewellery can get caught in moving parts.

Never drag the machine by means of the cord and never pull out the plug by pulling the cord.

Never leave the machine unsupervised with the motor running.

Keep all cables away of water, oil and sharp edges. Make sure the cable is not pinched in doors, fences or the like. It can cause the object to become live.

Make sure that there is always another person close at hand when you use the machines, so that you can call for help if an accident should occur.

Check that the cables are intact and in good condition. Use cable intended for outdoor use.

Always ensure you have a safe and stable working position.

Never use the machine if any cable is damaged, but hand it in to an authorized service workshop for repair.

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.

Be on your guard for electrical shocks. Avoid having body contact with lightning-conductors/metal in the ground.

Do not use an extension cord while it is rolled up to avoid overheating.

Ensure the cord is behind you when you start to use the machine so that the cord will not be damaged. 6 – English SAFETY INSTRUCTIONS Use and care

Only use the machine for the purpose it was intended for.

Keep all parts in good working order and ensure that all fixtures are properly tightened.

Never use a machine that is faulty. Carry out the checks, maintenance and service instructions described in this manual. Some maintenance and service measures must be carried out by trained and qualified specialists. See instructions under the heading Maintenance.

Do not modify safety equipment. Check regularly that they function as they should. The machine must not be run with defective or disassembled safety equipment.

Never use a machine that has been modified in any way from its original specification.

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 floor be established for safety, especially when operating in dry grinding applications.

During grinding, the machine must be connected to a vacuum cleaner to sucking off the dust.

When changing the grinding discs ensure power supply to the unit is OFF by engaging the Emergency Stop button and the power-plug disconnected.

After each grinding/polishing operation always remove the diamond tools.

Make sure that the rubber skirt is intact and clean and that it seals tightly against the floor. Damaged rubber skirt should always be replaced.

When removing glue, asphalt, paint etc. always raise the machine from the surface after use to prevent it from sticking to the floor due to the heat. Make sure the grinding head has stopped rotating before raising the machine.

Diamond tools may be very hot after use. Leave machine to cool off before removing the diamond segments. Use protective gloves.

Always use the machine mounted lifting eye when lifting.

Always carry the machine by the carrying handle and the handle. Transport and storage

The machine should always be transported under cover limiting the exposed to natural elements – in particular rain and snow.

Store the equipment in a lockable area so that it is out of reach of children and unauthorized persons.

The machine should always be stored in a dry place when not in use. English

ASSEMBLY Fit the handle

Changing the diamonds Remove the screws (A). Shut down the machine and disconnect the power plug. Have a set of gloves ready, as diamond tools can get very hot.

Remove the locking knobs (B).

Fit the handle in the handle stand-off on the machine.

Refit screws (A) and locking knobs (B).

The locking knobs should be positioned in-line with the handlebar to reduce the risk of damaging the knobs when laying down the machinge when changing tools. 8 – English

Crank up the handlebar to the highest position.

Pull back on handle to lift grinding head off the ground.

Lay machine back on the ground.

Use a hammer to remove the diamond segments.

Affix new diamond segments on the grinding disc.

Once new diamond segments have been attached, reverse procedure to lower machine to ground. ASSEMBLY Connect the vacuum cleaner Connect the vacuum cleaner to the machine. Use a 50 mm (2 inch) hose.

It is highly recommended to use the Husqvarna DC 3300 dust extraction system for complete dust control.

Make sure that the filters in the vacuum cleaner are intact and clean. Pay attention to dust during operation.

Adjust the rubber skirt to be in contact with the floor to ensure efficient dust collection. Transport The machine can be folded to minimize space needed for transport.

Loosen the screws and the lock handle that hold the cover in place.

Place the crank with the handle pointing straight upwards.

Carefully fold the machine forward. Put padding between the motor and the electric box to prevent damage to the machine.

The cover can be attached to the side of the machine. English

GRINDING GUIDE Diamonds

Hardness of bond. Background

Diamond grit size. Diamond abrasives usually consist of 2 components:

Number of segments under the machine.

Adding an additional abrasive (e.g. sand, silicone carbide) on the floor will increase wear.

Diamond powder (also known as diamond crystals or grit). By changing the size of the diamond powder or grit, we can change how coarse or fine the scratches will be that are left behind from the grinding process. A binding agent (metal or resin). Diamond powder is mixed and suspended in either a metal or resin binding agent. When suspended in a metal binding agent, the finished product is referred to as a Metal Bond or Sintered diamond segment. When suspended in a resin binding agent, the finished product is referred to as a Resin Bond diamond segment or pad. By changing the hardness of the binding agent, we can change how fast or slow the diamond abrasive will wear. General Principles The following are general rules regarding diamond segments in grinding applications. As with all general rules there are exceptions or cases when it is not the case. Diamond grit size Changing the size of the diamond grit to a smaller particle/grit size will effect the performance of the diamond tool in the following ways:

Create a finer scratch pattern.

Increase life of diamond tool. The opposite will occur when changing to a larger particle/grit size. Binding agent Increasing hardness of bond will:

Create a finer scratch pattern.

Increase life of diamond tool.

Decrease production rate. The opposite will occur when making the metal or resin bond softer. Number of diamond segments/pads under the machine Increasing the number of segments under the machine will:

Reduce pressure on each individual diamond segment 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 floors). The opposite will occur when decreasing the number of segments under the machine. Summary of diamond principles Diamond segments need to wear in order to achieve productivity. Diamond segment wear can be influenced by the following factors: 10 – English Generally, the faster a diamond segment wears, the faster the productivity will be. By varying the above factors, changes can also be made to effect the following:

Current draw of machine.

Flatness of floor (see next section).

Ease of operation. Determining the hardness of 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. PSi & MPa) are used. Generally, the higher the compressive strength rating, the harder the concrete and therefore, the harder it will be to grind. However, other factors beside compressive strength ratings determine how hard the floor will be, and therefore, the correct diamond selection. Since grinding normally only deals with the surface of the concrete (top 5mm or 1/4 inch), often the way the concrete floor has been finished or the condition of the surface will have a greater bearing on what type of diamond to select, rather than the compressive strength rating of the concrete. Surface factors to consider when making a diamond selection Generally, if a concrete surface is very smooth (i.e. Most likely it has been heavily trowelled/helicoptered), the concrete will behave as if it has a high compressive strength and therefore, require a soft bond segment. Accordingly, if a concrete surface is coarse/aggressive (e.g. rain-damaged, shot blasted, scarified, exposed aggregate e.t.c.), the concrete will behave as if it has a low compressive strength and therefore, require a hard bond segment. Surface coatings/contaminants (e.g. Epoxy coatings, ceramic tile adhesives, levelling compounds/screeds) will often have a larger bearing on what diamond to select, than will the compressive strength of the concrete. As a general rule, when grinding a concrete slab for the first time and you are unsure about its hardness, always begin with harder bond diamonds under the machine. This will ensure the least amount of wear on the diamond segments. If a hard diamond segment is not suited to the application, all it has cost is a little amount of time without wearing out the diamonds. If performed the other way around (i.e. a soft segment is used to begin with) and the concrete is soft or possesses an abrasive surface or surface contaminant, it is quite possible to wear-out a considerable amount of diamond in very short period of time. GRINDING GUIDE Diamond selection They way diamond segments are set-up on the grinding unit will greatly influence the performance of the machine, the productivity levels and also the finished floor quality. There are a number of different diamond configurations that can be achieved on both the PG 400 SF and PG 280 SF. Metal bond diamonds Full set - inner and outer row Full set - outer row Half set - inner and outer row Half set - outer row English – 11 GRINDING GUIDE Select the correct metal bond diamonds for your application The following suggestion cover the basic configurations for metal bonded diamond tools. Applications Metal bond Grit size Full set - inner Full set and outer row outer row Half set - inner Half set and outer row outer row Flatten floor - Hard concrete Soft 16 or 30

Flatten floor - Medium concrete Medium 16 or 30

Flatten floor - Soft concrete Hard 16 or 30

Ceramic tile adhesive removal Medium PIRANHA™ or 16-30

Vinyl or Carpet glue removal Hard concrete Soft PIRANHA™ or 16-30

Vinyl or Carpet glue removal Medium concrete Medium PIRANHA™ or 16-30

Vinyl or Carpet glue removal Soft concrete Hard PIRANHA™ or 16-30

Epoxy paint removal Hard concrete Soft PIRANHA™ or 16-30

Epoxy paint removal Medium concrete Medium PIRANHA™ or 16-30

Epoxy paint removal Soft concrete Hard PIRANHA™ or 16-30

Rain damaged concrete Hard 16-30

Smoothen exposed aggregate Hard 16-30

Lippage removal in terrazzo/stone Soft tiles 30 or 60

Surface polishing of concrete floors - Hard concrete Soft

Surface polishing of concrete floors - Medium concrete Medium

Surface polishing of concrete floors - Soft concrete Hard

Grinding to exposed aggregate in Soft concrete - Hard concrete 16-30

Grinding to exposed aggregate in Medium concrete - Medium concrete 16-30

Grinding to exposed aggregate in Hard concrete - Soft concrete 16-30

Flatten undulation in concrete floors - Hard concrete Soft 16 or 30

Flatten undulation in concrete floors - Medium concrete Medium 16 or 30

Flatten undulation in concrete floors - Soft concrete Hard 16 or 30

GRINDING GUIDE Resin bond diamonds Redi Lock resin attachment adaptor Full set - outer row Half set - outer row Selecting the correct resin bond diamond configuration for your application Applications Full set - outer row Polishing terrazzo/stone tiles

Half set - outer row Resurfacing terrazzo/stone tiles

Surface polishing of concrete floors - Hard concrete

Surface polishing of concrete floors - Medium concrete

Surface polishing of concrete floors - Soft concrete

The motor’s direction of rotation (3 phase) The motor´s direction can be changed by reversing the poles in the power plug. NOTE! The Piranha/PCD tools are designed to run in only one direction. English – 13

STARTING AND STOPPING

Before starting Stopping

Position grinder on the working area.

Use the stop button to shut down the machine.

Make sure there are diamonds beneath the machine and that they are firmly attached.

Connect the vacuum cleaner to the machine.

Use locking knobs for handlebar adjustment to set most comfortable working height.

Plug power supply to machine.

Check that the emergency stop button is not pressed by turning it clockwise. Keep grinding segments in contact with the floor when stopping. This will help bring the machine to a complete stop quickly. Do not lift the grinding head off the floor when stopping as this can create a significant amount of dust in the air.

Check the motor’s direction of rotation Starting

Reduce the pressure between grinding disc and floor by pushing down on the handle without raising the grinding unit off the ground.

Press the start button and keep it pressed a few seconds to start the machine. 14 – English MAINTENANCE Faults and trouble shooting Maintenance The machine will not run

Check the power supply and the power cables and make sure that they are not damaged.

Check that the emergency stop button is not pressed by turning it clockwise. Machine is hard to hold onto

Not enough diamonds under the machine (if grinding thick glue or soft floors, too few diamonds under the machine will greatly increase the load on grinder and operator). Usually also accompanied by high current draw by motor. IMPORTANT! Inspection and/or maintenance should be carried out with the motor switched off and the plug disconnected. Used correctly, the machine is an extremely low-maintenance and reliable product. Cleaning Increase number of diamonds under machine to reduce load on grinder and operator. Machine is jumping around

Rubber shock absorber pads in grinding unit may be worn out or damaged. Check and change if necessary.

Diamonds may not be fitted correctly or have different heights. Check to ensure all diamonds are fitted correctly and are the same height. The machine stops after just a while

The machine is overloaded and the overload protection has been released. Reduce load. The machine will reboot after about a minute when the motor has cooled off. Always pull out the plug from the outlet socket before cleaning, maintenance or assembly. Always clean all the equipment at the end of the working day. Do not use a high pressure washer to clean the machine. In order for the machine to always be cooled sufficiently the cooling air openings must be kept clear and clean. Rubber shock absorber pads Check the rubber shock absorbing pads every month. Replace if necessary. Electrical Feed The machine stops during start-up

The electric motor has been overloaded or a phase is missing. Allow the machine one or two minues to reset and try again. When this does not help, contact an authorised service workshop.

WARNING! Never use damaged cables. They can cause serious, even fatal, personal injuries. 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. Skirt Make sure that the rubber skirt is intact and clean and that it seals tightly against the floor. Damaged rubber skirt should always be replaced. Service IMPORTANT! All types of repairs may only be carried out by authorised repairmen. This is so that the operators are not exposed to great risks. English – 15 PG 280 SF (Single-phase) Motor Power, kW/hp 4/5,4 3/4 2,2/3,0 Rated current, A

12,9 Rated voltage, V

Weight, kg/lbs 115/254 70/154 70/154 Grinding width, mm/inch 400/16 280/11 280/11 Grinding pressure, kg/lbs 65/143 35/77 35/77 Speed, rpm

Sound power level, measured dB(A)

Sound power level, guaranteed LWA dB(A)

Noise emissions (see note 1) Sound levels (see note 2) Sound pressure level at the operators ear, dB(A) 89 Vibration levels (see note 3) Handle right, m/s2 3,4 3,4 3,4 Note 1: Noise emissions in the environment measured as sound power (LWA) in conformity with EN 61029-1. Note 2: Noise pressure level according to EN 61029-1. Reported data for noise pressure level has a typical statistical dispersion (standard deviation) of 1.0 dB(A). Note 3: Vibration level according to EN 61029-1. Reported data for vibration level has a typical statistical dispersion (standard deviation) of 1 m/s2. EC-declaration of conformity (Applies to Europe only) Husqvarna AB, SE-433 81 Göteborg, Sweden, tel: [phone], declares under sole responsibility that the Husqvarna PG 400 SF, Husqvarna PG 280 SF dating from 2010 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 May 17, 2006 "relating to machinery" 2006/42/EC

of December 15, 2004 ”relating to electromagnetic compatibility” 2004/108/EC.

of December 12, 2006 ”relating to electrical equipment” 2006/95/EC. The following standards have been applied: EN ISO 12100:2003, EN 55014-1:2006, EN 55015-2/A1:2001, EN 61000-3-2:2006, EN 61000-3-3/A1/A2:2005, EN 13862/A1:2009. The supplied machine conforms to the example that underwent EC type examination. Göteborg December 29, 2009 Henric Andersson Vice President, Head of Power Cutters and Construction Equipment Husqvarna AB (Authorized representative for Husqvarna AB and responsible for technical documentation.) 16 – English WIRING DIAGRAM English – 17 WIRING DIAGRAM 18 – English PG 280 SF (Monofásico) Potencia del motor, kW/CV 4/5,4 3/4 2,2/3,0 Retirez les vis (A). Pression de surfaçage, kg/lbs 65/143 35/77 35/77 Vitesse, tr/min.