1050 SXC - Electric drill KRESS - Free user manual and instructions

USER MANUAL 1050 SXC KRESS

Use The drill is universally applicable for percussion drilling in rock, drilling and putting screws into wood, metal, and synthetics, and for tapping. Safety instructions and prevention of accidents Before operating the machine, please read through the operating instructions completely, follow the Safety Instructions in this manual as well as the general Safety Instructions for Power Tools in the accompanying booklet. Caution! ● Beware of jamming. The machine may jam, for example, when the machine is at an angle or when the drill bit comes into contact with reinforcing steel! ● Before mounting tools in the drill chuck or spindle, always move the reversing switch (3) to the middle LOCK position, or disconnect the machine from the power supply, or remove the mains cable module (7) from the grip using the locking device button (8). ● Do not work with materials containing asbestos! ● Outside power sockets must be protected with residual-current-operated circuit-breakers (r.c.c.b.). ● Do not drill holes into the housing to label the machine. The protective insulation will be bridged. Please use self-adhesive labels. ● Always lead cables away towards the back of the machine. Double insulation Our equipment is designed in accordance with European regulations (EN standards) for the utmost safety of the user. Machines with double insulation always carry the in- ternational symbol. The machines do not require earthing. A two-core cable is sufficient. The machines are interference-suppressed in accordance with EN 55014. Initial operation Before the first operation check that the mains voltage corresponds to that given on the machine nameplate. Trigger switch with button for continuous operation The machine is set in operation by pressing in the handle switch (1). The small holding button (2) on the side of the switch is pressed in for continuous operation. To release the continuous operation merely depress the switch, which makes the holding button spring back automatically. Electronic speed control This machine has an integrated full wave electronic control circuit switch. The required speed may be selected with the adjusting wheel (e.g. for serial screw drilling or for cutting threads). The switch is lockable in every position. Position A = lowest speed Position G = highest speed Ensure that the drill is not allowed to jam for longer than 2–3 seconds. Longer jamming can lead to motor damage. Important! Continuous operation under strong load and low speed can overheat the motor. Allow the motor to cool down in no-load when set at a high speed! Torque-selection + electronic safety system (Model 1050 SXC only) The integrated full wave electronic system with tachometer maintains a constant rpm speed. The system’s preselectable power regulation (torque selection) allows the torque to be regulated to meet different requirements, for example, in the case of serial screw drilling. Regulate the torque with the adjustment wheel (4) on the grip.The torque level is determined by several factors, including the hardness of the material being worked, and the length and diameter of the screws being used. As a result it is necessary to adjust the torque initially by making a few test screw drillings. Recommendation Position 1 = least torque Position 10 = greatest torque The electronic system also has a gradual start up feature. Even if the trigger-switch is fully depressed, the machine willl only reach its full rpm speed after approx. 1 second. This permits smooth drilling even when working with sensitive materials. The integrated electronic safety system prohibits start up in the case that the machine is plugged into the power supply with the trigger-switch locked in the ON/OFF position. Should this occur, unlock the switch and start in the normal fashion. Changing direction of rotation (main rotation – clockwise) The direction of rotation of the spindle is altered by the reversing switch (3). R = Clockwise (Right) L = Anticlockwise (Left) Important! Press the rotational direction switch 9 in each case to the stop on the housing, i. e. until it can be felt to engage. The reversing switch is easiest to operate by using the thumb and index or middle finger from both sides. Attention! Change direction of rotation only when the motor has ceased turning! When using the drill as a screwdriver, the percussion mechanism must be switched off. Switch-over by means of the sliding switch (5). When fixed in the middle LOCK position, the reversing switch prevents accidental startup of the full wave control (1), for example when changing tools or mounting/removing the drill chuck. Percussion drilling device The machine has an integrated percussion mechanism and can be switched from normal drilling to percussion drilling. The sliding switch (5) allows switching from normal drilling to percussion drilling or vice-versa while the machine is in operation. Normal drilling position Push slide switch (5) to the left in direction of “normal drilling”. Percussion drilling position Push slide switch (5) to the right in direction of ”percussion drilling“. Mechanical two-speed gearshift Shifting takes place by turning the finger-grip knob (6) on the upper side of the machine. Position 1 = slow machine speed Position 2 = fast machine speed The two-speed gearing offers advantages for drilling and percussion drilling with small drill diameters up to c. 8 mm (shift gear to position 2). For larger drill diameters and for mixing work, shift gear to position 1. The LOCK function (finger-grip knob (6) in LOCK position) is useful when mounting and removing the drill chuck. The LOCK position also facilitates wrench-free tool changes when using a quick-change chuck and allows maximum clamping force in tool mounting. Use as a screwdriver Screwdriver inserts (bits) can fitted directly into the chuck. Use Phillips screws for best results. Safe operation is ensured by the self-centering mechanism. Please make sure to use the correct screwdriver inserts. Cutting threads The integrated electronic and the reversal of the direction of rotation makes the percussion drill also suitable for cutting threads. The use of machine taps is recommended. The tap is clamped into the chuck. The electronic controls are sensitive and should be handled with utmost care to prevent any breaking of tap – particularly when cutting threads into blind holes. The required torque may be selected via the adjusting wheel in switch (1) and via the torque selection (4). Important! When cutting threads, use low speeds only. Important note for machines with clockwise and anticlockwise rotation. Reassembly of drill chuck: Caution! Before disassembling and reassembling the drill chuck, disconnect the machine from the power supply, or remove the mains cable module (6) from the grip using the locking device button (7). Caution! Before removing and mounting the drill chuck, always move the reversing switch (3) to the LOCK position. By doing so, you eliminate the risk of accidentally triggering the full wave switch (1). If a faulty chuck has to be replaced, please check whether the chuck is secured to the drill spindle with a safety screw. This screw must be removed first (Attention! Lefthanded screw! Turn clockwise!). The chuck can be loosened and unscrewed by lightly hitting a hexagon socket key (Allen key) which has been fitted in the chuck. It is refitted by repeating the procedure backwards. Caution: Before fitting a new chuck please clean the end faces on the chuck and drill spindle. Tighten the new chuck securely (30 Nm). Secure the chuck with the safety screw is there is one (Tighten the safety screw in anti-clockwise direction). Caution! It is still possible, especially when there is no safety screw, that the chuck comes off the drill spindle when it is turning in the anticlockwise direction. For this reason, when changing the chuck ensure that it is fitted onto the spindle perfectly. Safety slip coupling The slip coupling takes effect as soon as a tool clamped in the machine becomes overloaded, is braked abruptly or jams. Although the motor and gear continue to run, the tool remains stationary. Thus, the motor and gear are protected against overload, impulsive gearwheel loading is ruled out. Always make sure that the chosen speed is correct for the purpose for which you are using the machine. High speeds are necessary for polishing and grinding. When drilling match speed with type of material and drill. High speed drilling in steel and stone will cause premature tool wear. Quick-change chuck This chuck has been specially developed for use on percussion drills. The chuck has a release safety lock which prevents any unintentional release of drilling tool even at high impact frequencies. Operation by turning collar as usual to stop point. Engagement of clamping force safety lock for subsequent operation is clearly heard and felt. Clamping and releasing of chuck by holding the locking ring. Use tool steel twist drills for soft materials such as wood and plastics; carbide-tipped stone drills for stone and concrete; high speed twist drills for steel and iron. Also make sure that, using a gear-rim-chuck, the drill chuck key is never fastened to the drill with chains, strings or by similar means. Be sure that the workpiece cannot be taken along by the drill. Maintenance The machine’s motor has life-time lubrication and requires no special maintenance. However, should you operate the machine on a continuous basis over long periods of time we recommend that you send us the machine for thorough cleaning and an inspection. This will spare you unnecessary repair expenses and increase the machine’s service life. If you always clean the ventilator of dust after each operation, the motor will enjoy an ever longer service life. Uniform ventilation is essential for a long service life. Replacing carbon brushes Our service personnel will do this and all other servicing work fast and professionally. Mains cable Damaged mains cables must not be used. They are to be replaced immediately. This has been made very straightforward by the new mains cable module (6). Press both locking keys (7) and pull the mains cable module (6) out of the handle. Insert the new mains cable into the handle and lock in place. Different lengthed mains cables are available as special accessories. Only use the mains cable module for KRESS power tools! Do not attempt to operate other electrical appliances with it! Auxiliary handle For safety reasons, the supplementary handle must always be used when working with the percussion drilling machine. It allows safe, wander-free guidance of the drill and, thanks to an integrated depth stop, precise adjustment of the drilling depth. Ensure that the draw spindle is properly tightened to the auxiliary handle. Only in this way can you prevent the auxiliary handle from twisting on the collar or becoming detached from the equipment. Supplied accessories Auxiliary handle with depth stop Noise/vibration information Measured values correspond with EN 50144. Sound pressure level: 1050 SXC = 74+3 dB (A) 800 SX = 78+3 dB (A) Sound power level: 1050 SXC = 87+3 dB (A) 800 SX = 91+3 dB (A) Work place emission value: 1050 SXC = 77+3 dB (A) 800 SX = 81+3 dB (A) Operators require noise protection equipment. The weighted acceleration is typically 13.2 m/s2. Environmental protection Kress takes back used machines for resource saving recycling. Due to their modular construction Kress machines can be very easily broken down into their recyclable basic materials. Hand in your old Kress machine at a dealer or send them directly to Kress. Subject to change without notice.

1. This electrical tool has been designed with high precision and was

approved after undergoing strict quality control checks in the factory.

2. We are therefore able to guarantee free servicing of any

production or material faults which arise in the 24 months after the date of sale to the purchaser. We reserve the right to repair defective parts or else replace them with new parts. Parts which have been replaced become our property.

3. The guarantee will be rendered void if the device is used

improperly, mistreated or opened up by unauthorised repair personnel. Parts which are subject to wear are not covered by the guarantee.

4. The guarantee may only be enforced when defects are reported

without undue delay (including shipping damage). Guarantee implementation does not extend the guarantee period.

5. If the tool is defective, please complete the guarantee card and

return the unit, guarantee card and a brief description of the problem to the responsible service location. Please enclose your sales receipt.

6. The guarantee obligations assumed by us shall exclude any

further claims on the part of the buyer, in particular the right to recission of a sale, reduction and the assertion of damage claims.

7. However, the buyer shall have the right to either a reduction (in the

purchase price) or the recission of the sale (cancellation of the sales agreement) should we fail to eliminate any defects within a reasonable period of time.

8. Damage claims in accordance with §§ 463, 480 Paragraph 2,

635 BGB due to absence of guaranteed quality shall not be not excluded.

9. The provisions defined in Items 7 and 8 only apply to the Federal

Republic of Germany.