KFU 1000 E - Milling machine Mafell - Free user manual and instructions

USER MANUAL KFU 1000 E Mafell

Grooving Machine Translation of the original operating instructions

This symbol appears at places where you will find instructions for your own safety. Non-compliance with these instructions may result in very serious injuries.

This symbol indicates a potentially hazardous situation. If this situation is not avoided, the product or objects in its vicinity may get damaged.

This symbol indicates tips for the user and other useful information.

2 Product information for machines with product no. 951101, 951120, 951121 or 951122

All details required for machine identification are available on the attached rating plate.

CE symbol to document compliance with the basic safety and health requirements according to Appendix I of the Machinery Directive.

For EU countries only Do not dispose of electric tools together with household waste material! In accordance with the European directive 2002/96/EC on waste electrical and electronic equipment and transposition into national law, obsolete electrical tools must be collected separately and recycled in an environmentally-compatible manner.

To reduce the risk of injury, please read the operating instructions.-14-

50 – 82 m/s (164 – 279 ft/sec.) Operating weight

3,8 kg (8.3 lbs) Dimensions (W x L x H)

Noise emission values determined according to EN 60745-1:

The stated values do not take any series variance into account and are not suitable for determining the evaluation level according to German UVV «noise» regulations since this varies depending on the operating time, the machining operation concerned and environmental factors. The evaluation level can consequently be determined only in the individual instance on the premises of the machine user.

2.5 Vibration specifications

The typical hand-arm vibration is less than 2.5 m/s

Grooving machine KFU 1000 E complete with: 1 TCT groove-cutting blade Ø 120 x 3.6 x 20 mm (423/32 x 1/8 in. x 20 mm), 12 teeth 1 bow for chip bag 1 chip bag 1 chip bag holder 1 service tool 1 carrying case with tray 1 operating manual 1 folder “Safety Instructions”

2.7 Use according to intended purpose

The MAFELL grooving machine KFU 1000 E is intended exclusively for cutting grooves for plastic welding material into floor covering materials which will melt when being heated (PVC and similar material). The diameter of the groove-cutting blades used must be 120 mm (4 23/32 in.). Any other use beyond this scope is considered as failing to comply with the intended purpose. The manufacturer is not liable for any damage caused as a result of this; the risk is borne solely by the user. Use according to intended purpose also includes compliance with the operating, maintenance and repair conditions specified by MAFELL, and adherence to the safety instructions contained in the operating manual. The grooving machine KFU 1000 E must be operated, tooled and maintained only by persons-15- more than 18 years old, familiar with the machine and instructed as to the risks. Repair work must be carried out by authorized MAFELL dealers or a MAFELL customer service station. The relevant accident prevention regulations and other generally recognized industrial, medical and technical safety rules must be complied with. Unauthorized modifications to the machine preclude the liability of the manufacturer for any resultant damage.

Even when used according to the intended purpose and in compliance with all the relevant safety regulations, the design of the machine prescribed by its function gives rise to potential residual risks, for instance from the following sources: - Touching the groove-cutting blade in the vicinity of the cutting blade aperture at the cutting blade guard when the machine is running. - Touching the rotating cylinder-head screw from the side. - Machine kicks back if the cutting depth set of the groove-cutting blade is too large and if the blade is touching the floor pavement. - Breakage of the groove-cutting blade and risk of the groove-cutting blade or pieces of the groove- cutting blade being hurled away. - Touching live parts with the housing open and the mains plug not removed. - Hearing can be impaired when working for long periods without ear protectors. - Emission of dust: a health hazard when working for long periods on enclosed premises without adequate ventilation. 3 Safety instructions

Danger If used incorrectly, grooving machines can be dangerous. For this reason, aways comply with the safety instructions summarized in this chapter, the accident prevention regulations of the relevant liability insurance association or equivalent, and the safety regulations applicable in the country concerned!

General instructions: - Never work without the protective equipment prescribed for the relevant operation and do not make any modifications to the machine that could undermine safety. - Children and adolescents must not operate this machine. This rule does not apply to young persons receiving training and being supervised by an expert. - Prior to all work, make sure that the safety and operating equipment is securely attached and undamaged. Damaged protective equipment and parts must be repaired correctly or replaced. - Always be aware of environmental influences. Do not allow the machine to be exposed to the rain and do not use the machine in a damp or wet environment, or in the vicinity of inflammable liquids or gases. - When operating the machine outdoors, use of an earth-leakage circuit-breaker is recommended. - Do not carry the machine by the cable and do not remove the mains plug from the socket by pulling on the cable. - Protect the cable against oil and high temperatures and do not pull it over any sharp edges. - Cutting blade cover should only be removed for changing blades. - Damaged cables or plugs must be renewed immediately.-16- - Only use cutting blades with the technical data stated in this manual. - Well sharpened cutting blades should be usedonly. - Store the machine in the dry under lock and key and out of reach of children. Do not use: - Cracked and misshapen cutting blades. - Blunt cutting blades which impose an excessive load on the motor. Instructions as to the use of personal safety equipment - Always wear close-fitting industrial clothing and remove rings, bracelets and watches. - The sound pressure level at the workplace generally exceeds 85 dB (A). Users should therefore wear ear protectors. Instructions as to operation - Provide an uncluttered, anti-slip location with adequate illumination. - Before cutting blade changes and eliminating malfunctions pull out the mains plug. - Machine must be switched off before being connected to the mains. - Hold the machine firmly even before switching on. - Before switching on, make sure that the cutting blade is tightly secured and that the Allen key has been removed. - Do not begin cutting until the cutting blade has reached full speed. - Examine the floor covering material for foreign objects. Never attempt to cut nails or other metal objects. - When cutting, always lead the cable away from the machine to the rear. - Always keep your hands well away from the chip nozzle or do not press the cutting blade guard (rocker) while the machine is running (risk of injury!). - Steady feeding during cutting increases the life of the cutting blade and the machine. Never cut backward! Instructions as to service and maintenance - Any work on the electric components of the machine must be carried out only by a qualified electrician. - Regular cleaning of the machine, especially of the adjusting devices, the cutting blade guard (rocker), the chip nozzle as well as the front guide roller and the rear guide roller, is an important safety factor. Before beginning this task, pull out the mains plug. - Only original MAFELL spare parts and accessories must be used. Otherwise the manufacturer does not offer any warranty and does not accept any liability. 4 Setting / Adjustment

4.1 Mains connection

The gooving machine KFU 1000 E has Class II protective insulation (double-insulated). Before starting up, make sure that the mains voltage matches the voltage stated on the rating plate. Machine must be switched off before being connected to the mains.

4.2 Mounting the chip bag

Put both free end pieces of the complete chip bag into the holes of the base plate.

4.3 Change of cutting blade

Always pull out the mains plug before changing the cutting blade! Do not fit cutting blades that are cracked or otherwise damaged. Only use cutting blades with a diameter of 120 mm (4 23/32 in.). Do not use cutting blades with a bore diameter other than 20 mm. Make sure that the cutting blade being mounted is properly sharpened since this is the basic requirement for perfect joints.

Proceed as follows to change the cutting blade: Remove cutting blade cover 19 by loosening the 4 flat-head screws 45. Press locking pin 26 and turn the cutting blade slowly until it catches. Loosen the clamping flange with the Allen key (note left-hand thread!). When inserting the new cutting blade, note the correct direction of rotation: the teeth of the-17- cutting blade must point in the same direction as the arrow on the cutting blade cover. Then put cutting blade cover 19 on and tighten flat-head screws 45. Make sure that all contact surfaces on the flanges and blade are clean. If the cutting blade and the guide rollers are not properly aligned, the guide rollers should be adjusted. 5 Operation

5.1 Switching on and off

Do not switch on the machine if the cutting blade is touching the floor covering material.

Temporary operation Switching on: Press switch 92/1. Switching off: Release the switch. Continuous operation Switching on: Press switch 92/1 first and then press locking button 92/2. The motor runs wiuthout keeping the switch pressed. Switching off: Press switch 92/1 until locking button 92/2 trips, then release the switch.

5.2 Adjusting cutting speed

This grooving machine has an electronic speed control. The cutting speed can be adjusted continuously between 8000 and 13000 rpm. Thus, the cutting speed can be adapted to the material used. The built-in electronics ensure a jerk-free acceleration when switching on and control the speed according to the value set. The required speed can be set by means of the setting wheel on the motor cover.

5.3 Cutting depth adjustment

The cutting depth is adjusted by turning knurledhead screw 28. Turning clockwise reduces, counterclockwise increases the cutting depth. Turning the knurled-head screw down completely reduces the cutting depth to 0 mm. When cutting grooves, make sure that the cutting blade will not cut into the concrete or flooring plaster as this may damage the carbide-tipped teeth. When the cutting depth has been set, it is recommended to cut a trial groove into a piece of waste material.

5.4 Work instructions

Place the grooving machine down on the floor covering in such a way that the two guide rollers are placed on the slit of the joint between two sheets of floor coverings. The front guide roller 31 in front of the cutting blade has a thin knife-like profile to follow the slit of the joint. Rear guide roller 32 has the same profile as the teeth of the cutting blade so that it completely fills the groove to be cut. Hold the machine firmly, switch on, lower the machine into working position by pressing it down smoothly and start cutting. After a few cm / inches rear guide roller 32 will be fully inserted into the groove providing reliable guidance in conjunction with the front guide roller. When cutting, make sure that the machine is advanced evenly and firmly, to prevent that chips are heated up, melted and glued together. Beginning and end of the groove must be completed with a hand grooving tool. Attention: The thin profile of the front guide roller is rather delicate and may be damaged when hitting concrete or metal, which in turn may reduce its guiding capacity. 6 Maintenance

Danger Prior to doing any maintenance work always pull out the mains plug!

The grooving machine KFU 1000 E is designedwith a low maintenace requirement. The ballbearing are greased for life. The machine must be regularly cleaned of dust, at the same time blowing out of the motor ventilation apertures. After a prolonged period of operation, users are recommended to have the machine checked by an authorized MAFELL customer service shop.-18- 7 Troubleshooting

Danger Determining the causes for existing defects and eliminating these always requires increased attention and caution. Pull the mains plug beforehand!

Some of the most frequent defects and their causes are listed in the following chart. In case of other defects, contact your dealer or the MAFELL customer service. Defect Cause Elimination Machine cannot be switched on No mains voltage Check power supply Carbon brushes worn Take the machine to a MAFELL customer service shop Machine stops while cutting is in process Mains failure Check mains back-up fuses

8 Special accessories The following optional accessories are available for the grooving machine KFU 1000 E:

Ref. No. 091460 - Replacement knives for hand grooving tool, semi-circular Ref. No. 091467