DR 350 T - User manual HUSQVARNA - Free user manual and instructions

USER MANUAL DR 350 T HUSQVARNA

HUSQVARNA CONSTRUCTION PRODUCTS

Maximum usable travel,

Noise emissions (see note 1) Sound power level, measured dB(A)

Sound power level, guaranteed dB(A)

Sound levels (see note 2) Sound pressure level at the operators ear, dB(A)

FR - ASSURANCE DE CONFORMITÉ UE

GB - EC DECLARATION OF CONFORMITY

• of May 17, 2006 ”relating to machinery” 2006/42/EC

Maximum usable travel,

This symbol indicates that the machine is in conformance with the applicable European directive. INDICATION INFORMATION INSTRUCTION MANDATORY WARNING PROHIBITION These signs give advice concerning your safety Instruction plate TYPE SERIAL FABRICATION YEAR ANNEE DE FABRICATION MASSE UTILE

POWER VOLTAGE FREQUENCY INTENSITY SPECIAL INSTRUCTIONS The disc cutter is designed to provide safe and reliable service in operating conditions corresponding with the instructions, but it can present dangers for the user and risks of damage, consequently regular on site inspection is necessary to ensure :

• Perfect technical condition (use for the purpose for which it is intended and taking into account any risks, and correction of any malfunction detrimental to safety). English

• Use of a diamond disc for water lubricated cutting of marble, stone, granite, brick and facings (porcelain, glazed tiles, ceramics, etc). The use of any other disc is forbidden (abrasive, saw, etc).
• Competent staff (qualifications, age, training) who have read and understood the manual in detail before starting work: any electrical, mechanical or other problem should be investigated by a qualified maintenance engineer (electrician, maintenance manager, approved dealer, etc . . .).
• That the warnings and instructions marked on the machine are followed (adequate personal protection, correct use, general safety instructions, etc).
• That no modification, transformation or addition is detrimental to safety and that it is carried out without prior authorization from the manufacturer.
• Respect of the maintenance intervals and periodical checks recommended.
• That only genuine spare parts are used for repairs.

Must not be used for any purpose for which it is not designed.

Any persons not involved in the work should leave the working area.

• On delivery, check the state of the machine. 1" 1/4

• Always keep it clean.

• Check the supply cable and extension regularly.

• Always take care while using the machine.

- Diamond tipped drill

- Motor mounting plate

• Remove the diamond tipped drill from the motor.
• Lower the carriage to the base and lock the brake.
• To avoid damaging the motor shaft, the borer must not be carried or moved by the shaft, whether or not it is fitted with a drill or extension.
• If the (optional) suction base is being used, do not move the borer sideways (this might damage or displace the base seal).

Inspection before starting up Please read the instructions for use prior to operating the machine for the first time. The working area must be completely cleared, well lit and all safety hazards removed (no water or dangerous objects in the vicinity). The use of ear protection is mandatory. The operator must wear protective clothing appropriate to the work he is doing. We recommend that this includes both eye and ear protection.

Use drills which are suitable for the work to be undertaken (speed, form, type of work, etc . . .). - 2-stroke petrol engine (5% 2 stroke 100% synthetic oil) 6.5 bhp and 4,1 bhp.

SEE FIG. 1 N° SERIE WEIGHT Description of the machine

• Check the assembly (unusual vibration), and that the drills are correctly fitted. MANUFACTURER TYPE

INSTALLATION / MOUNTING Drilling pipes in the open : attach the machine to the pipe using one or two ratchet straps. Pipe-laying in the bottom of a trench: Place the machine on the soil at the bottom of the trench and stick the two retaining spikes in the ground. Other methods may be used to ensure that the machine is firmly anchored: place a block on top of the column and press down with the digger bucket / wedge against the walls or support on the bottom of the trench, etc.

Starting Always take care. Before use, remove the spanners and adjustment tools from the base or the borer. Get into a comfortable, balanced position. When boring walls, floors or anywhere where there may be buried conductors, DO NOT

TOUCH THE METALLIC PARTS

OF THE MACHINE. Hold the machine by the plastic handles which will avoid indirect contact with live conductors which might be drilled. STARTING - Turn the switch to Start. - Pull out the choke (under the air filter). - Open the throttle slightly using the throttle lever. - Pull the starting cord until the engine fires. - Push in the choke and allow the engine to warm up for a few minutes before use.

Problems while boring Unscrew the clamping screws .

• Check the drill is tightened on the shaft.
• Check that the pressure and the flow through the central spray are adequate for lubrication. Do not run the machine off load without a water supply (this will damage the seals on the spray head).
• Select the rotation speed appropriate for the bore diameter.
• Turn the motor on (avoiding contact with the material to be drilled).
• Using the wheel, bring the rotating drill slowly into contact with the material to be drilled without exerting undue pressure. Boring the first centimetre is extremely critical and should be considered as the centring of the drill (exerting too much force will displace the drill sideways causing friction between the drill tube and the material which will increase as the depth increases).
• When the drill has been centred, increase the drilling force to obtain the correct penetration speed. Insufficient force will cause the diamond to become polished and thus lose its cutting ability, whereas too great a force will dislodge the diamond and result in excessive wear. Vertical bore Drill jammed in bore hole

• Close the hole immediately so that the core does not fall back into the hole (if the core is still inside the drill).

• If the motor stops suddenly, turn it off immediately. Horizontal bore

• Try to remove the drill using the wheel without forcing.

• Unscrew the drill from the shaft using a spanner and remove it. Tap the sides of the drill tube with the wooden shaft of a hammer until the core comes completely out.
• Never bang the drill onto a hard surface or hit it with a metallic implement: this might dent the tube making it impossible to remove the core or to use the drill again, rendering it useless.
• If the core is jammed inside the drill, break it up using a cold chisel on the end striking along the length of the drill or pushing by means of the connecting shaft (hole saws). If the bore is finished, remove the borer. If the bore needs to be deepened, remove the drill only to ensure that the subsequent bore is centred.
• In both cases, insert a wooden or metallic wedge into the circular hole and force it in until the core breaks free. Remove the core from the hole.
• For bores deeper than the length of the drill, never remove the borer. Having removed the first core (as above), put the drill carefully back into the hole, connect the extension to it and screw the other end to the motor shaft.

• If the initial rotation speed is high in relation to the diameter of the drill, the rotation speed should be reduced when cutting through reinforcing.

• Continue drilling as described in paragraph 9.

• After each bore, clean the machine to prevent the slurry drying on the machine.
• Clean and wipe all of the borer.

• When boring certain porous or cracked materials or when boring intersecting holes, all the water spray disappears into the material and no water will be seen running out of the bore hole. In this case, use the maximum water flow to be sure of cooling and lubricating the drill.
• Always ensure that the water flow is sufficient so that the slurry remains fluid. The slurry, and therefore the drill, should never become warm.

• When boring is finished, either when the drill emerges on the other side or the bore depth is reached (blind bores) : stop the motor, keep the water running, use the wheel to remove the drill, at the end of travel, turn off the water.

• - Under no circumstances should you try to release the tool by bump-starting it . If the drill can be removed, remove the core as described in paragraph 10, clean to the base of the bore hole and start boring again. If the drill cannot be removed, put the appropriate spanner on the drill connector and rotate it backwards and forwards while pressing on the wheel. When the drill has been removed from the hole, remove the core, clean the hole and start boring again.

• If the core remains in the hole : Note : When cutting through reinforcing, reduce the force on the drill as the cutting speed in steel is less than that in concrete.

• The drill wear depends mainly on the density of the reinforcing being drilled, the abrasiveness of the concrete, the type of aggregate, the ratio of the drill diameter to the diameter of the reinforcing bars and the motor power used.

• Check the water flow and correct if necessary. the motor shaft threads, the drill, extension and connector threads.
• This ensures that the machine remains fully operational, avoids the threads jamming and prevents premature carriage wear.

Diamond tipped drills

• Should be handled with care to obtain maximum life (they may be re-tipped for economy).
• They may be permanently damaged by hard impacts on hard surfaces, by compression under a load or by using unsuitable tools on the tube for removal (chain wrench, pipe wrench).

• In extreme cases, when it is impossible to free the drill, it is possible to recover some of the diamond tipped strip by overboring. This entails boring around the jammed drill along the same axis. The drill used should have an interior diameter 10 mm greater than the diameter of the jammed drill. Continue as for normal boring. Borer comes loose during operation
• Stop the motor immediately and check the borer mountings. English Incline the columns to the desired angle . Maximum inclination 30°. Screw up the clamping screws. Expanding bolt mounting
• Check that the locking screw is tight, and that the expanding bolt is well anchored (if it comes out of the wall it can not be properly tightened). Drill another anchoring hole and reposition the machine.
• As it is very difficult to align with an existing hole, it is better to move the axis of the hole slightly if possible, or to bore using the next larger size of drill. Suction mounting
• Check that the levelling screws are tight, and that the vacuum pump is operating correctly using the pressure gauge. If the pressure drop is too low, check the base seal and replace if necessary. Check the surface of the material in the region of the mounting: surface faults might cause air leakage. Move the mounting. The suction could tend to tear off a superficial layer from the material (eg: a skim): if this happens, choose another mounting method. Unusual vibrations
• Normally caused by the core breaking off within the drill causing an unbalanced load.
• Stop the motor immediately.

• Remove the pieces of the core as described in paragraph 11. Start boring again. If the vibration recurs, check the machine mounting (see above).

Diameter and type of take-off pipe

• If the water flow and pressure are inadequate: use maximum flow for drill cooling and lubrication. Steel Cast iron PVC Excessive drill wear Earthenware

• If using recycled water loaded with abrasive material: use pure or decanted water.
• If too much pressure is applied, the diamonds will become detached causing accelerated wear: reduce the boring pressure.
• If the material to be bored is too abrasive: use a special drill. Contact your supplier.

• Stop the motor immediately. English

• If the drill has wandered due to bad centring, move the axis slightly or bore with a larger drill (on the same axis).
• If there is a buried steel girder (100% steel boring), a wooden joist (expanding and jamming) or an elastic material (rubber), bore in another place.

• Check that the motor mounting surfaces, the guides. (0) Item number Quantity See exploded view

• Check the water flow.
• Remove the drill and check for wear or polishing or that a part of the diamond tipped strip has not become unwelded and is turning with the drill at the base of the hole. If this happens, break and remove the core (if the core has stayed in the hole see paragraph 11). Recover all the diamond tipped segments and unscrew the damaged drill for repair if possible. Start boring again with a new drill. If the segments cannot be recovered, overbore. Contact your supplier who is entirely at your service to carry out repairs in the shortest time at the best possible price. For rapid delivery of spares and in order to avoid any wasted time, it is necessary to remind your supplier of the details shown on the instruction plate on the machine with each order, as well as the reference of the part to be replaced.

• Retighten all nuts and bolts regularly. No progress Repairs

The manufacturer declines all responsibility for loss or damage resulting from misuse or any modification, alteration or powering that does not conform to the manufacturer's original specifications. At the work station, the sound pressure level may exceed 85 db (A) In this case individual protection measures must be taken.

Scrapping In the event of deterioration and scrapping of the machine, the following items must be disposed of in accordance with the requirements of the legislation in force.

• Main materials : Motor : - Aluminium (AL) - Steel (AC), Copper (CU) - Polyamide (PA) Machine : - Aluminium (AL) - Steel (AC), Polyacetal (PA) Using the geared motor - Check the mixture for petrol engines. It should be a 5% mixture with 100% synthetic oil for 2-stroke engines.
• - for pneumatic engines check the pressure (approx. 6 bars) and the flow rate (50l/s).
• Speed changes Operate the gear change knobs only when the motor is fully stopped and turn the shaft by hand to align the pinions. Never use pliers or other tools to change speed.
• Clutch : The geared motor has a mechanical clutch which disengages to protect the user only when the drill jams during boring.

Handhabung - Transport

The warranty is acknowledged as of the date of purchase (date of the invoice of the distributor) and is valid for a period of 12 months.