UVA 115 E - Sander Mafell - Free user manual and instructions

USER MANUAL UVA 115 E Mafell

Orbital sander Translation of the original operating instructions

This symbol is found in all places where you will find information for your 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. 917401, 917420, 917421 or 917425

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.-15-

Operating voltage 230 V AC Mains frequency 50 Hz Input power continuous operation 450 W Strokes at idling speed 4000 – 24000 strokes / min Strokes at normal load 3000 – 18000 strokes / min Sanding stroke 2.6 mm (3/32 in.) Sanding pad 223 /112 mm (8 11/16 x 4 3/8 in.) Abrasive – hook and loop fastening 230 /115 mm (9 1/16 x 4 1/2 in.) Sanding paper - clamp fastening 280 /115 mm (11 x 4 1/2 in.) Hose connector diameter 35 mm (1 3/8 in.) Weight without mains cable 2,6 kg

The declared noise emission values have been measured in accordance with EN 62841-1 and EN 62841-2-4 and may be used for comparing the tool with another and also in a preliminary assessment of exposure.

Danger The noise emissions during actual use of the power tool can differ from the declared values depending on the ways in which the tool is used especially what kind of workpiece is processed. Always wear hearing protection, even when the power tool ist running idle in addition to the trigger time!

2.4.1 Noise emission specifications

Noise emission values determined according to EN 62841: Sound pressure level L

= 86 dB (A) Uncertainty K

= 3,0 dB (A) Sound power level

= 94 dB (A) Uncertainty K

= 3,0 dB (A) The noise measurement was recorded using the tool included in the standard equipment.

2.4.2 Vibration specifications

Noise emission values determined according to EN 62841-2-4 : at the main handle smaller than 2.5 m/s

at the front handle 3.6 m/s

The measuring inaccuracy K is 1.5 m/s 2-16-

2.6 Use according to intended purpose

The orbital sander is exclusively intended for dry surface finishing work with timber, coatings of paint and varnish, filler and plaster as well as with metal. Any other use than described above is not permissible. The manufacturer cannot be held liable for any damage arising from such other use. So as to use the machine as intended, comply with the operating, maintenance and repair instructions specified by Mafell.

Danger Even if used in accordance with its intended purpose and despite conforming with the safety instructions, residual risks caused by the intended use that can lead to health consequences will always remain. - Touching the sanding paper or the oscillating plate when sanding. - 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 harmful wood dusts during longer operation without extraction. 3 Safety instructions Danger Always observe the following safety instructions and the safety regulations applicable in the respective country of use! Also read the safety instructions in the enclosed booklet "Safety instructions". General instructions: - Children and adolescents must not operate this machine. This rule does not apply to young persons receiving training and being supervised by an expert. - Never work without the protection devices prescribed for the respective operating sequence and do not make any changes to the machine that could impair safety. - When operating the machine outdoors, use of an earth-leakage circuit-breaker is recommended. - Damaged cables or plugs must be immediately replaced. Replacement may only be carried out by Mafell or an authorised MAFELL service workshop in order to avoid safety hazards. - Avoid sharp bends in the cable. Especially when transporting and storing the machine, do not wind the cable around the machine.-17- Instructions on the use of personal protective equipment: - Always wear ear protectors during work. - Always where a dust mark during work. - Always wear protective goggles during work. - The dust arising during work is often hazardous (e.g. when processing oak or beech wood, rocks, metal or paint coats containing lead or other harmful substances) and should not enter the body. Do not touch or inhale the dust. Use a dust extraction and in addition wear a dust protection mask. Remove any deposited dust thoroughly, e.g. by vacuuming it with a special vacuum cleaner. Also observe this when replacing the filter bag. Instructions on operation: - Do not reach with your hands into the oscillating range of the sanding paper or its retainer. With your other hand, support the supplementary handle or the motor casing. - Never support the workpiece in your hand or over your leg. Secure the workpiece against a sturdy support. - Whenever possible, secure the workpiece against slipping, e.g. with screw clamps. - Provide for an unobstructed and slip-proof location with sufficient lighting. - Only use sanding paper with the dimensions stated in these operating instructions. Instructions on service and maintenance: - Regularly cleaning the machine, especially the adjusting devices and guides, constitutes an important safety factor. - Only original MAFELL spare parts and accessories may be used. Otherwise the manufacturer will not accept any warranty claims and cannot be held liable.

Only connect the machine with the mains when it is switched off. 4 Setting / Adjustment

4.1 Mains connection

Prior to commissioning make sure that the mains voltage complies with the operating voltage stated on the machine's rating plate.

Connect the machine to a suitable external dust extractor during all work generating a considerable amount of dust. The air velocity must be at least 20 m/s (65.6 ft / sec.). The internal diameter of hose connector is 35 mm ( 1 3/8 in.). Correct dust extraction can only be guaranteed if an abrasive grid or punched sanding paper is used. As the sander is equipped with its own dust extraction, it is possible to work with the sander's own dust extraction and the filter bag supplied for short assignments and in inaccessible areas. Make sure that the filter bag is replaced on a regular basis (Fig. 5 and 6).

Danger Pull the power plug during all service work. Attaching abrasives with hook and loop fastening (Fig. 2) The hook and loop fastening makes a quick replacement of the sanding sheets possible.

• Remove any dirt and dust from sanding pad 6 or 7 before mounting a new sanding sheet.

• When abrasive grids are used, the Velco strip of the sanding pad can be covered with protective layer 9 or 10 to prevent excessive wear.

• When positioning the protective layer, pay attention that the drill holes correspond to those of the sanding pad.

• Make sure that the clamping brackets 4 (Fig. 1) are always locked in position when working. Loose clamping brackets wear and may damage the casing of the orbital sander.

• Only use original MAFELL abrasives.-18- Attaching sanding paper without Velcro fastening (Fig. 3)

• Release clamping bracket 4 by simultaneously lifting the two rounded ends 5 upwards.

• Remove the old sanding paper and insert a new sheet.

• When positioning the sanding sheet, pay attention that the drill holes correspond to those of the sanding pad.

• By exerting pressure on clamping brackets 4 you fasten and clamp the sanding sheet in position.

• Make sure that the release levers on both sides engage.

4.4 Installation of the delta grinding plate

Installation of the delta grinding plate (Fig. 4)

• Open the clamping bracket 4 by lifting the rounded edges 5 on both sides and pulling back the clamping bracket. Then, press the two brackets against each other from the outside and remove clamping bracket 4 from the sanding pad.

• Insert delta sanding plate 7 with its two cams from the front into sanding pad 6. Attach the delta sanding plate 7 with screw 11 to sanding plate 6.

4.5 Additional handle

If necessary, the additional handle 12 can be removed from the machine with the integrated screw 13 using the enclosed hexagon screw driver. 5 Operation

5.1 Initial operation

Personnel entrusted to work with the machine must be made aware of the operating instructions, calling particular attention to the chapter "Safety instructions".

5.2 Switching on and off

• Switching off: Release the switch. Continuous operation

• Switching on: Press switch 1 and locking button 2 consecutively. Then release the switch with depressed locking button. The motor runs without pressure on the switch.

• Switching off: Press switch 1 until locking button 2 pops out. Then release the switch.

5.3 Control electronics

The stroke rate of the orbital sander UVA 115 E can be steplessly set at adjusting wheel 3 of the control electronics from 4000 strokes/min to 24000 strokes/min. With the control electronics, the sanding speed can be adapted to the respective material. Thus, heat- sensitive materials such as plastics, paints, varnishes and glazes are protected against damage by excessive sanding speeds. In addition, the abrasive grid lasts longer as it does not get clogged. Thus, when working with the control electronics when sanding a wide variety of different materials, you always obtain a sanding speed that is suitable for the material.

5.4 Work instructions

The best sanding performance is achieved with slight pressure. You can avoid scratching caused by switching on and off, if you position the running orbital sander on the workpiece and also remove it with running motor from the workpiece. 6 Service and maintenance

Danger Pull the power plug during all service work. MAFELL machines are designed to be low in maintenance. The ball bearings used are greased for life. When the machine has been in operation for a longer period of time, we recommend to hand the machine in at an authorised MAFELL customer service shop for inspection. Regularly remove deposited dust from the machine. In the process, blow out the ventilation openings on the motor.-19-

Clean the machine thoroughly if the machine is not used for a longer period of time. Spray blank metal parts with a rust-proofing agent. 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

8 Grinding material Order No. Price Code Description Design Qty

Abrasive grid Abranet 115x230, 35 pieces Grain 80

Abrasive grid Abranet 115x230, 40 pieces Grain 320

9 Special accessories - Universal filter bags UFB-1, 5 pieces Order No. 205570

= 3,0 dB (A) Geluidsniveau

= 86 dB (A) Negotovost K

= 94 dB (A) Negotovost K