Follow very carefully the instructions in this manual,
save it and keep close at hand, ready to carry out any
inspection of parts that may be necessary.
If the machine is used carefully and normal maintenance
is carried out, it will work well for a long time.
The functions and use of the tool you have bought shall
be only those described in this manual. Any other use
of the tool is strictly forbidden.
ILLUSTRATIONS
DESCRIPTION (See figures)
A SDS-plus chuck (Fig.1)
B Chuck sliding ring (Fig.1)
C Rotary stop lever (Fig.1)
D Push button for rotary stop lever (Fig.1)
E Changeover drilling/hammer-drill.switch (Fig.1)
F Label for reversing rotation R-L (Fig.1)
G Changeover left/right direction switch (Fig.1)
H On-/off switch (Fig.1)
I Locking button (Fig.1)
K Depth stop fixing wing nut (Fig.1)
L Depth gauge (Fig.1)
M Auxiliary handle (Fig.1)
N Screwdriver bit (accessory*) (Fig.3)
O Key chuck (accessory*) (Fig.3)
P SDS-plus adapter (accessory*) (Fig.3)
* Not included in standard equipment, available as an accessory
SAFETY INSTRUCTIONS• See “Safety Instructions” manual, supplied with this instruction manual.
• Warning! When drilling in amianthus/asbestos and/or silica stone, the dust produced is extremely harmful to your health. Wear protection against inhalation of this dust, in compliance with current regulations on accident prevention. Follow the insurance company’s safety instructions regarding the responsibility of employees.
• For your personal safety, always connect the machine to a mains supply protected by a differential and thermal cut-out switch, in accordance with regulations on low-voltage wiring sitemaps.
• Do not perforate the machine casing, as this would destroy the protective insulation (use adhesive labels).
• Always unplug the machine before doing any work on it.
• Warning! Before each use, inspect the plug and lead. Should they need replacing, have this done by an offi-
cial service centre. Only plug the machine in when it is switched off.
• Always keep the lead out of the machine’s working area.
• Only plug the machine in when it is switched off.
• Do not allow the machine to get wet, nor should it be used in wet environments.
• When using the machine, always wear safety goggles, gloves and non-slip footwear, and it is advisable to wear ear protection.
• Do not touch the bit during or immediately after working, as it becomes very hot and can cause serious burns.
• Hold the machine firmly by the handle and the auxiliary handle, otherwise the recoil produced could cause the machine to work imprecisely or even dangerously.
• Always use the auxiliary handle.
• Never attempt to clean off dust or shavings resulting from drilling when the machine is operating.
• Do not use diamond core bits.
• When drilling walls, ceilings or floors, take care to avoid electric wires and gas or water pipes.
BRIEF DESCRIPTIONA pneumatic percussion unit generates the power necessary for hammer drilling or chiselling in masonry. Just like when we hit a conventional chisel with hammer, a free piston strikes the bit or chisel, which can move lengthways, through an intermediate part. This free piston is driven by a second piston activated by an electric motor through an air cushion. This electro-pneumatic principle offers great percussion elasticity and work free from recoil.
Unlike a normal hammer drill, the drilling capacity does not depend on the pressure exerted on the machine.
Use of the tool: The rotary pneumatic hammer can be used for hammer drilling, chiselling in stone and drilling in wood, metal as well as plastic, and also for driving screws with driving bits installed in a key chuck with the SDS-plus adapter. Any other use not mentioned is not allowed.
Additional features of the electro-pneumatic hammer:
- The machine is equipped with a safety clutch or mechanism which operates when a bit seizes up, protecting the user and the machine’s electro-mechanical parts. The clutch is released automatically. Warning! This machine must not be used with hole saws, core bits, diamond bits, etc, as they tend to jam in the hole easily. This would cause the safety clutch to trip out too often.
- Percussion drill chuck A with SDS–plus mounting for using tools with SDS-plus shaft. A geared drill chuck or a keyless chuck can be used in conjunction with the SDS-Plus Adapter P.
- Change direction of rotation with switch lever G –due to a lockout mechanism, switching the lever is only possible if the On/off switch H is not depressed.
- Electronic control of spindle speed, infinitely variable by finger pressure on the On/off switch H.
- For continuous operation the On-/Off switch can be locked in the “On” position by the button I.
- Auxiliary handle M, adjustable, with integral depth gauge L.
BEFORE USING THIS TOOL
WARNING! Before carrying out any work, check, for instance, using a metal detector, that there are no electric wires or gas or water pipes under the surfaces you wish to work on.
Make sure the mains voltage is correct: it must be the same as that on the specification label. Machines with 230V can also be connected to a 220-V mains supply. To turn the machine on, press the ON/OFF switch H and keep it pressed down.
When the ON/OFF switch is released, the machine stops.
WARNING! Always disconnect the plug from the socket before doing any work on the machine.
1. Fitting the working tools Hammer drill (Fig.1)
Only use tools with SDS-plus shaft!
1. Clean and grease the shaft of the tool.
2. Before inserting the tool, move the sliding ring B back. Now the SDS-plus chuck is open.
3. Push the tool in, turn it slightly until it can be pushed in all the way and you can feel it notch into place.
4. Release the sliding ring B. Now the tool is locked.
5. Check that the tool is properly locked into place. It must be possible to move it about 10 mm lengthways.
6. Switch machine over to hammer drilling, with lever E in horizontal position over the figure of a hammer.
SDS-plus adapter for geared drill chuck (Fig.3)
1. Fit the SDS-plus adapter P into the SDS-plus chuck as described above.
2. Drill chucks with 1/2” x 20 UNF mounting threads can be screwed onto the mounting shaft. Drill bits with cylindrical shank or screwdriver bits N can be inserted directly into the chuck I.
2. Changing the position of the auxiliary handle
1. Unscrew the auxiliary handle M in an anticlockwise direction.
2. Turn the auxiliary handle M to the required position.
3. Screw the auxiliary handle M in place again.
3. Setting the depth gauge
Make sure before you start that drill-bit is inserted in the SDS-Plus chuck.
1. Slightly loosen the fixing wing nut K.
2. Hold the bit tip against the work surface. Push the depth gauge L against the work surface, to the same depth as the length of the bit.
3. Read the value in mm off the scale on the depth gauge L and subtract the required drill depth.
4. Tighten the fixing wing nut K and adjust the resulting value for the depth stop.
4. Mains connection
Warning! Connect only to a single-phase AC current supply and only to the mains voltage specified on the rating plate. Connection to sockets without earth protection is possible as the appliance features protective class II insulation according to European Standard EN50114. Radio interference suppression complies with the European Standard EN 55014.
FUNCTIONS
1. Speed selection (Fig.1)
The speed can be controlled in infinitely variable steps by adjusting finger pressure on the On-/off switch H.
2. Switching over between drilling and hammer-drilling (Fig.1)
Warning! For rotatory drilling, with or without percussion, the Roto-Stop lever C has to be turned with the arrow pointing ahead (nº 3). To activate this lever, first press the red button D. Hammer-drilling, with rotation:
Changeover switch E in horizontal position, over hammer figure (nº 2).
Drilling without hammer, with rotation: Changeover switch E in vertical position, over bit figure (nº 1).
Only ever switch over when the machine is stationary or slowing down. Only ever operate the machine rotating clockwise when drilling.
3. Chisel works without rotation (Fig.1)
For chisel works the mandrel rotation must be stopped. For do this, push the red button D and turn the rotatory lever C with the arrow pointing backwards (nº 4). When chiselling, the machine must be adjusted for rotating to the right.
4. Switching between forward and reverse (Fig.1) Select direction of rotation with reversing lever G as shown on label F, i.e., R=right sense, L=left sense. Due to a lockout mechanism, the reversing lever G can only be switched when the On-/off switch H is not depressed.
Only change directions when the machine has stopped. Only ever operate the machine rotating to the right when hammer-drilling or when chiselling!
5. Switching the tool on and off (Fig.1) Intermittent use
Switching on: Press trigger switch H. Switching off: Release trigger switch H. Continuous use
Switching on: Press the On-/off switch H and then the locking button I, after that release on-off switch. Switching off: Press the On-/off switch H and then release. The speed can be controlled continuously during the operation by adjusting finger pressure on the On-/off switch.
OPERATION1. Hammer-drilling
1. Set the following adjustments before starting work: - Roto Stop lever C with arrow pointing ahead.- Lever E horizontal over hammer figure for Hammer-drilling operation.
- Clockwise rotation.
2. Fit the SDS-plus drill.
3. Place the drill against the material before switching it on, press it until the lengthways play is taken up, then switch on and work exerting light pressure (e.g. 30N).
Note: Exerting greater pressure does not increase the machine’s effectiveness!
Tips on drilling in masonry:
• Take the drill out of the hole from time to time to remove dust.
• Switch to percussion-drilling for concrete, hard bricks and tiles, stone and hard cement (but not when drilling the surface of marble).
• For tiles, paving-stones, soft bricks and tiles, soft cement, breeze-block and plaster, switch to normal drilling.
• Use percussion carbide-tipped masonry drill-bits.
• When drilling a hard, smooth surface (e.g. tiles), cover the point to be drilled with adhesive tape in order to prevent the drill tip from skidding.
2. Chiselling in stone
1. Set the following adjustments before starting work:
- Roto Stop lever C with arrow pointing backwards.
- Lever E horizontal over hammer figure for Hammer-chiselling operation.
- Clockwise rotation.
2. Fit the SDS-plus chisel.
3. Apply the machine to the working material when switched off, then switch the machine on, activate the pneumatic hammer mechanism with high pressure at first, then continue to work applying light pressure (e.g. 30N).
Note: Exerting greater pressure does not increase the machine’s effectiveness!
NOISE AND VIBRATION
This tool has been designed and made to reduce noise to a minimum. However, in spite of this, in certain circumstances the maximum noise level in the place of work could exceed 85 dBA. In this case, the operator should wear ear protection.
The machine’s noise and vibration levels, measured in compliance with EN50144, usually reach: Acoustic pressure = 89 dB(A) Sound-power level = 102 dB(A)
Use ear protection!
Vibration acceleration = 6,6 m/s2
ACCESSORIES
Accessories and their corresponding order number can be found in our catalogues.
MAINTENANCE AND CARE
WARNING-Always unplug the machine before carrying out work on it.
- When you notice a decrease in hammer output, take the machine to an Official Service Centre.
- Tool inspection: Using a blunt cutting tool leads to less efficient work and could damage the motor, therefore cutting tools should be sharpened or replaced as
soon as any wear is noticed. Daily: Clean the tool-holder.
- Inspect the mounting screws: Regularly inspect all the mounting screws and ensure they are firmly tightened. Should any screw be loose, tighten it immediately. Failure to do so could put you at serious risk.
- Motor maintenance: Take the utmost care to ensure that the motor winding is not damaged and does not become damp with oil or water.
- Brush replacement: The brushes disconnect automatically and should be replaced after 150-200 hours use or when they are less than 10 mm long. Have them replaced by an Official Service Centre.
- Clean the machine thoroughly after each use with a blast of dry air.
- The vents of the machine should be kept clear at all times.
- Check that the mains lead is in good condition. If it is not, take it to an Official Service Centre to have it replaced.
- Use only Freud accessories and spares. The parts the changing of which is not covered in this instruction manual, should be replaced in a Freud Official Service Centre (See Warranty/Official Service Centre address leaflet).
Do not dispose of electric tools in the household waste!
In accordance with European Directive 2002/96/EC relating to old electrical and electronic appliances and its translation into national law, used electric tools must be collected separately and recycled in an ecologically desirable way.
WARRANTY
See general warranty conditions printed on the attached sheet.
DECLARATION OF CONFORMITYWe hereby declare, under our own responsibility, that the FREUD products described in this manual FCH24RE comply with the following standards or standard documents: EN 50144, EN 55014 and EN 61000-3 in accordance with EU Directives 73/23/EEC, 89/336/EEC, 98/37/EEC and 2002/95/EC.
Cˆ
05
Ernest Casals José Ramón Córdoba
Laboratory Mgr. Plant Mgr.
We reserve the right to make technical changes 09/2005
