Used Drill Grinding Machine,Tool Grinder for sale (66,275)

Condition: excellent (used), Year of construction: 1988, TECHNICAL DATA. Max. clamping length: 90 mm Fpjdpfewwkacox Aalog Tool clamping height with tapered shank: 50 mm Tool clamping height with straight shank: 45 mm Max. helix angle: 45° Number of clamping positions: 1 to 99 Max. slide travel: 550 mm Max. grinding wheel diameter: 350 mm Min. grinding wheel diameter: 150 mm Grinding wheel speed (variable): up to 2700 rpm Swivel range of grinding spindle axis: 0° to 15° Grinding slide feed rate (variable): 0.05 to 16 mm/min (with 3rd and 4th axis: 0.05 to 8 mm/min) Workpiece spindle taper: ISO Taper No. 40 Grinding Wheel Data CBN and diamond cup grinding wheel: Ø200 mm → Min. DFF: 66 (3rd axis), 76 (4th axis) Ø250 mm → Min. DFF: 16 (3rd axis), 26 (4th axis) CBN-ES cone grinding wheel: Ø200 mm → Min. DFF: 50 (3rd axis), 60 (4th axis) Ø250 mm → Min. DFF: 0 (3rd axis), 10 (4th axis)

Condition: good (used), Year of construction: 1984, Grinding wheelhead: - motor power : 2,2 kW - spindle speeds : 1 000 - 8 000 rpm - spindle inclination (A-axis): -10° up to +27° - setting accuracy 1 min - height adjustment (Y axis) : 130 mm - stroke range (X axis) : 220 mm - oscillation stroke, steplessly adjustable during oscillation : 0-30 mm - oscillation frequency : 30/60 1/min Workhead: - radius setting (Z axis) : 0.01-50 mm - setting accuracy: 0,01 mm - retraction of slide from the grinding to the measuring position : max. 49 mm - cross table, clamping surface : 155 x 205 mm - travel X - Y : each 60 mm - maximum swivelling angle (B axis): 260° - supply voltage : 380 V - weight : 1200 kg Accessories/options: Fodpevmpabjfx Aalopg - grinding pressure variable - projector fixed in measuring position - 1 cabinet with accessories - different grinding wheels, flanges - coolant tank - documentation Under power in our warehouse.

Condition: excellent (used), For sale: professional cutter and drill bit sharpener, model PP U3. Condition: very good, complete unit ready for operation. Included in the set: • Set of grinding wheels • Adjustable angular tool holder • Workshop lamp with flexible arm • Keys and clamping elements Specifications: • For sharpening cylindrical and spiral end mills • For sharpening step and cylindrical drills • Wheel linear speed up to 35 meters per second • Maximum noise level: 66 dB • Machine weight: 41 kg Fsdpfjxdh Hqsx Aalspg Solid, stable construction—ideal for precise tool machining. A reliable solution for tool rooms, CNC workshops, and machine shops.

Condition: good (used), Year of construction: 2012, Used Wilson Xsharp punch tool grinding machine Type: Xsharp Year of manufacture: 2012 Including cooling system Fjdpfx Aasyi E Uqslopg

Condition: ready for operation (used), functionality: fully functional, Laska WW-200 G angle grinder whit stainless steel housing and screws. Fpsdpjyitqgjfx Aaljg This machine has 220 volt electric system and various speeds.

Condition: used, Technical data: Fpedpsymykbefx Aaljg Grinding wheel diameter: 250 mm Manual feed Power supply: 380 V Total power: 1.1 kW Overall dimensions: Length: 1550 mm Width: 2000 mm Height: 2200 mm

Condition: excellent (used), Year of construction: 2013, operating hours: 32,269 h, functionality: fully functional, machine/vehicle number: 2067-2091, WALTER Helitronic Basic 2013 For sale is Walter Helitronic Basic CNC tool and cutter grinding machine. It is in excellent working condition. Machine is under power and can be inspected by appointment. Price on request, loading on truck included. Possibility of shipping Worldwide. TECHNICAL CHARACTERISTICS WALTER Helitronic Basic 2013 No. 2067-2091 Working hours 32269 [h] CNC control FANUC 310i Software: Tool Studio Version 3.5 Number of axes 5 Travel path: X= 470mm Y=330mm Z=640mm Spindle rotation speed: 10500 rpm Traversing feeds X, Y and Z axes 15000 [mmmin] A axis 360 [°] C axis +- 200 [°] Max. workpiece lenght peripheral grinding 350 [mm] Max. workpiece lenght end face grinding 280 [mm] Max. grinding diameter 320 [mm] Max. grinding diameter with automated work table 290 [mm] Grinding spindle attachment NCT Grinding spindle diameter 70 [mm] Max. diameter grinding wheel 150 [mm] Max. part weight in part holder headstock 20 [Kg] Coolant pump pressure 7 [bars] Collant pump flow rate 80 [lmin] Lubrication tank capacity 350 [l] Supply voltage 400 [V] Grinding spindle motor power: 7 kW Fsdpfjwu Nw Uex Aaljpg Tool holder: ISO 50 Weight: 4500kg EQUIPMENT INCLUDED x1 Software TOOL STUDIO 3.5 x1 RENISHAW tool probe x1 DSL AIR TECHNOLOGY AES-SIGMA 20 type oil mist extractor x1 lubrication tank x1 paper band filtration unit x1 GRUNDFOS coolant pump x1 machine parameter backup x3 technical manuals (paper format) x1 technical documentation (CD-ROM format)

Condition: used, Technical details: grinding length: 300 mm grinding spindle - swivable: 350 ° grinding head adjustable: senkrecht: 250 mm adjustment of spindle-head: quer: 230 mm grinding head adjustable: neigbar +/-15° ° grinding diameter: Ø 250 mm spindle revolutions per minute : 2200 - 3500 - 5200 U/min work table:: B:120 x L: 950 mm table movement: Obertisch schräg: recht/links 45° mm table movement: größter Tischweg: 500 manuell mm surface of magnetic-table: 305 x 130 x 100 mm dimensions of grinding wheel: Topfscheibe 125 x 20 Ø 32mm mm total power requirement: 1,8 kW weight of the machine ca.: 1,0 t dimension machine xH: 1,6 x 1,3 x 1,7 m dimensions of hydaulic: 600 x 550 x 870 mm Fjdpfou Ng Npjx Aalspg Accessories: Universal clamping head cone MK5 Drill grinding holder Ø 10mm *

Condition: good (used), Year of construction: 1992, functionality: fully functional, working range: 50 mm, Drill grinder capacity 50 mm Fpsdpfxsviuzcs Aalsg

Condition: excellent (used), Year of construction: 2009, CNC control : FANUC 160i - Accessories available. - Fanuc loading robot - Coolant system (Edge 2 tower from ARO-Technologies) - Oil mist separator (ELBARON SA) Travels: X-axis 650 mm Y-axis 300 mm Z-axis 300 mm C-axis swivel angle +150°/ -60° C' axis swivel angle +/- 180° Grinding spindle: Wheel dimensions up to 250 mm Speed 0 - 10,000 rpm. Max. spindle power 26 kW HSK 80 holder Max. Number of disks 6 Workpiece headstock Vmax 180°/s Drive power 1.6 kW ISO 50 mounting Precision (resolution) Fedpfjr Ha Dvex Aaljpg Resolution linear axes 0.001 mm C-axis 0.001° Dimensions: Length 3100 mm Width 1915 mm height 2190 mm Weight 8'500 kg

Condition: good (used), Year of construction: 1990, functionality: fully functional, machine/vehicle number: FAF19SCULPTOR, grinding spindle motor power: 1,500 W, input current: 4 A, The Schneeberger Sculptor is a Swiss high-precision profile grinding machine, specifically designed for the sharpening and manufacturing of tools. The machine is fully operational and available for testing. It comes with a comprehensive set of accessories and parts. Fodjyk S Rnopfx Aaljpg

Condition: new, The DSB 200 D is a robust tool grinder in the Tool Grinders category by KNUTH, designed for sanding, grinding, and deburring metal parts and tools with precision. This heavy-duty machine features a rigid cast-iron body and a maintenance-free motor, ensuring durability and optimal performance. With a balanced rotor and premium bearings, it operates quietly, providing excellent results while prioritizing safety with an emergency stop switch and a safety observation shield. The DSB 200 D comes standard with a sturdy base and includes two universal corundum wheels, making it ideal for industrial use with a motor rating of 0.9 kW and a speed of 2,950 1/min. This tool grinder is engineered to withstand the rigors of workshop conditions, ensuring long tool life. For those looking for a reliable tool grinder, the DSB 200 D is the perfect choice. Request a quote today to learn more about the Tool Grinders and the unparalleled performance of this product group. Fedpfx Aaewub Hnolspg

Condition: new, The DSB 250 D is a robust tool grinder designed for efficient sanding, grinding, and deburring of metal parts and tools, making it a vital addition to any workshop within the Grinding Machines category. This industrial-grade equipment features a heavy-duty design with a rigid cast-iron body, ensuring minimal vibrations and optimal results. Equipped with a powerful 0.9 kW motor, it delivers a speed of 2,950 rpm and maintains quiet operation thanks to its balanced rotor and premium bearings. Safety is prioritized with an emergency stop switch and a safety observation shield. The machine is supplied with a sturdy base and two universal corundum wheels, providing everything you need for effective performance. Built to withstand rough workshop conditions, the DSB 250 D promises durability and longevity. For those seeking a reliable tool grinder in the tool grinders category, you can request a quote today. Fpjdpfx Aajwub Hhslsg

Condition: new, The FSM 14 S Tool Grinder by KNUTH is a robust machine designed specifically for the precise and cost-effective grinding of HSS and carbide milling cutters, ranging from 4 to 14 mm in diameter. This handy milling cutter grinder series stands out for its user-friendly operation, making it an ideal choice for any tool crib, where efficient tool maintenance is essential. The FSM 14 S features the capability to grind 2, 3, and even 4-blade cutters, with an additional station available for outer spiral cutting edge grinding. Included in the package are collets tailored for common cutter diameters—4, 6, 8, 10, 12, and 14 mm—along with high-quality grinding wheels that enhance your workflow. This machine ensures rapid tooling and quick setup, enabling you to maintain your tools effectively. Invest in the FSM 14 S Tool Grinder today and elevate your tool sharpening capabilities. Request a quote for this reliable Tool Grinder and ensure your cutting tools are always ready for use. Fpedpep Dtx Usfx Aalog

Condition: excellent (used), Year of construction: 2013, operating hours: 1,169 h, functionality: fully functional, Ladies and Gentlemen, We offer you a very well equipped Schütte grinding machine. Please refer to the technical data sheet for a technical description. Fedpfjva Dumjx Aalopg

Condition: used, Year of construction: 1975, 1640 weight 280 kg ja +++++ Please note: Fpjdpsh H Eqnjfx Aaljg The machine is dismantled and ready for loading. It is not possible to show it under power or make a video. Our offer includes already the best pictures. So we don’t have and won’t send additional pictures. +++++

Condition: excellent (used), Year of construction: 2000, functionality: fully functional, machine/vehicle number: 663015, Walter Helitronic Mini Power Production 5 Axis CNC Tool & Cutter Grinder Universal tool and cutter grinder (CNC controlled) Made by Walter, model Helitronic Mini Power Production, s/n663015, year 2000 Description: Suitable to manufacture and regrind metal and woodworking tools of all kinds. Run with 1 micron filtration system, so the machine is very clean. Specifications: • Longitudinal traverse (X-axis) 350 mm, • Vertical traverse (Y-axis) 200 mm, • Cross traverse (Z-axis) 470 mm, • Rotary table swiveling range (C-axis) +/- 200°, • Work head ISO 50, center height (with / without worktable) 145 / 190 mm, • Max. diameter of workpiece 100 mm • Max. length of workpiece 270 mm • Max. dia. of grinding wheel 150 mm • Peak performance 11,5 kW, grinding spindle motor 9kW,speed 0 - 9500 rpm, • Connected load approx. 25 kW (460 volts 3ph / 60 Hz), • Dimensions w x d x h = 2600 x 2550 x 1970 mm, weight approx. 3950 kg, color grey RAL 7035 / grey RAL 7043. Accessories: • Control HMC 500 Windows XP Upgrade • Includes: 2021 Ebbco Filtration & Chiller unit Model PMF-MWF5-623-P-40K capable of filtering & chilling up to 2 grinders. 40,000 BTU Chiller & filtration up to 1 Micron. • Booster Box Upgrade option along with a spare Booster Box as well that could be used as a backup or for up to 3 other Walter machines. Value of each booster box is $10,000 a piece. • Stepless speed control, probe, pneumatic workpiece clamping • Fire extinguishing system • Mist Extractor Fjdpfx Aju Ez Hujalspg • Oil collecting pan, 2 grinding wheel flanges • Complete set of Manuals Software: • Tool Studio Version 2.1 Standard & Steptools • WWM Software Condition: • New Y axis Motor & Ball screw Installed 2021 • New Spindle Installed 2021 • New Electrical cabinet air conditioner Installed 2021 • All new encoder & motor cables for A, C, X, Y & Z axis Installed 2021 • Currently in production producing very accurate & consistent tools. Can be viewed under power • We have all of the shipping bracket, so the machine will be safely secured for shipping. • We can load onto a flatdeck for shipping for $900. We can also provide shipping & crating quotes if you would like.

Condition: like new (used), Year of construction: 2012, 12 station, Siemens Sinumerik 840D control, load / unload, VAS air cleaning unit, (2012) Technical Data - Grinding Spindles (With Two spindle ends) Interface - Cone ø 31.75mm Performance 100% / 40 % ED - 11.5 / 14.5kW Standard rotation speed - 8,000rpm Option: One spindle end Interface - HSK 50E Performance - 100% / 40% ED - 11.5/ 14.5 kW Standard rotation speed - 8,000rpm Option: One spindle end Interface - HSK 50E Performance 100% / 40% ED - 11 / 12 kW Standard rotation speed - 18,000rpm Option: One spindle end Interface - HSK 80E Performance 100% / 40% ED - 30/30 kW Standard rotation speed - 8,000 rpm Option: High Frequency spindle - On request Machine Table Clamping surface - 1000 x 500mm Fodpfxov Igghj Aalspg Number, distance and width of the T slots - 9 / 50 / 12H7mm Work Range X- Axis - 700mm (optional) 1000mm (optional) 1200mm Y Axis - 410mm Z Axis - 500mm C Axis angle of rotation - 320° Option: X3 - auxilliary axis Work range - 400mm Probing system and feed Resolution of linear axes - 0.0005mm Rapid feed of linear axes - 30,000mm/min Resolution of rotary axes - 0.001° Rotation speed of C Axis - 400rpm Rotary axis ( A axis) Standard tip height - 175mm Rotation speed as spindle - 2600rpm Standard interface - ISO SK 50 / centering 70H5 Optional - HSK 100 / 80 / 63 / 50 Tool Changer option HSK50E Number of tools / Diameter of tools Inner wheel - 5 / 300mm to 9 / 100mm Outer wheel - 7 / 300mm to 16 / 100mm HSK80E Number of tools / Diameter of tools Inner wheel - 5 / 300mm to 8 / 100mm Outer wheel - 7 / 300mm to 14 / 100mm Workpiece size Diameter 340mm Length 550mm Length between tips 500mm Electrical supply Operating voltage 400V / 50Hz fused to 80 A Controller Siemens contouring control - Sinumerik 840 DSL Pneumatics Operating pressure - 6 - 10bar Weight Total weight depending on equipment 10,000kg or more Floor space requirement Length x width (standard) 3227 x 2700mm Height during operation 3550mm Height with option of coolant nozzles 3810mm (min hall height 4100mm)

Condition: like new (used), Year of construction: 2010, Haas Multigrind CB multi axis CNC grinder, 12 station, Siemens Sinumerik 840D control, load / unload, LTA industrial air cleaning unit, (2010) Technical Data - Grinding Spindles (With Two spindle ends) Interface - Cone ø 31.75mm Performance 100% / 40 % ED - 11.5 / 14.5kW Standard rotation speed - 8,000rpm Option: One spindle end Interface - HSK 50E Performance - 100% / 40% ED - 11.5/ 14.5 kW Standard rotation speed - 8,000rpm Option: One spindle end Interface - HSK 50E Performance 100% / 40% ED - 11 / 12 kW Standard rotation speed - 18,000rpm Option: One spindle end Interface - HSK 80E Performance 100% / 40% ED - 30/30 kW Standard rotation speed - 8,000 rpm Option: High Frequency spindle - On request Machine Table Clamping surface - 1000 x 500mm Number, distance and width of the T slots - 9 / 50 / 12H7mm Work Range X- Axis - 700mm (optional) 1000mm (optional) 1200mm Y Axis - 410mm Z Axis - 500mm C Axis angle of rotation - 320° Option: X3 - auxilliary axis Work range - 400mm Probing system and feed Resolution of linear axes - 0.0005mm Rapid feed of linear axes - 30,000mm/min Resolution of rotary axes - 0.001° Rotation speed of C Axis - 400rpm Rotary axis ( A axis) Standard tip height - 175mm Rotation speed as spindle - 2600rpm Standard interface - ISO SK 50 / centering 70H5 Optional - HSK 100 / 80 / 63 / 50 Tool Changer option Fjdjv Igg Ijpfx Aalepg HSK50E Number of tools / Diameter of tools Inner wheel - 5 / 300mm to 9 / 100mm Outer wheel - 7 / 300mm to 16 / 100mm HSK80E Number of tools / Diameter of tools Inner wheel - 5 / 300mm to 8 / 100mm Outer wheel - 7 / 300mm to 14 / 100mm Workpiece size Diameter 340mm Length 550mm Length between tips 500mm Electrical supply Operating voltage 400V / 50Hz fused to 80 A Controller Siemens contouring control - Sinumerik 840 DSL Pneumatics Operating pressure - 6 - 10bar Weight Total weight depending on equipment 10,000kg or more Floor space requirement Length x width (standard) 3227 x 2700mm Height during operation 3550mm Height with option of coolant nozzles 3810mm (min hall height 4100mm)

Condition: good (used), functionality: fully functional, machine/vehicle number: S11-016, We are selling our Deckel S11. The machine is operational, and a digital readout can optionally be purchased as well. Fpsdsw A Rrvopfx Aaljg

Condition: new, Special offer price incl. shipping within DE (without islands) While stocks last Technical data: Drill diameter: 3 - 13 mm point angle: 90° - 140 Speed: 4800 1/min Connection: 230 V Motor power: 0,18 kW weight, approx.: 8,1 kg Dimensions, approx.: 320 x 180 x 190 cm Features: - Ideal for grinding HSS/hard metal twist drills. - Safe operation due to force-guided grinding process - Point angle adjustable from 90° - 140 Fpjdjd R A Dcjpfx Aalsg - Compact design, with collet storage in the machine and handle for quick stowage - Including pointing device to reduce the feed force - Device for relief grinding of drill cutting edges to reduce friction between drill and workpiece - Rotor with precision ball bearing Scope of delivery: - Grinding wheel CBN - 11 collets ER 20, 3 - 13 mm - Collet holder ER 20

Condition: used, Grinding machine, angle grinder, lathe grinder, thread drill grinder, milling cutter grinder, surface grinder, drill grinder, bench grinder, tool grinder Fjdpfxslmrkzj Aalopg -Manufacturer: Bösch, tool grinding machine type L 15 -Grinding discs: Ø max. 150 x 32mm / framed Ø 125 mm see photos -Motor power: 0.55 kW -Speed: 2800 rpm -Coolant device: -Dimensions: 1110/480/H1310 mm -Weight: approx. 182 kg

Condition: excellent (used), Year of construction: 2008, functionality: fully functional, machine/vehicle number: 693068, overall weight: 7,300 kg, power: 30 kW (40.79 HP), Walter Helitronic Vision CNC Tool & Cutter Grinder with Pallet Loader Universal tool and cutter grinder (CNC controlled) Made by Walter, model Helitronic Vision, s/n 693068, year 2008 Description: Suitable to manufacture and regrind metal and woodworking tools of all kinds. Can be viewed under power. Specifications: • Longitudinal movement (X-axis) 480 mm • Y axis vertical movement 320 mm • Z-axis transverse movement 700 mm • Rotary table swivel range C-axis +/- 200 ° • Workpiece Holder ISO 50 • Max. Workpiece diameter 320 mm • Workpiece length circumferential grinding 370 mm • Workpiece length for face machining 320 mm • Accuracy linear resolution 0.0001 mm • Radial resolution 0.0001 ° • Diameter of the spindle 100 mm • Grinding wheel mount: HSK50 • Diameter of the grinding wheel 200 mm • Grinding spindle speed 0 – 12,000 rpm., • Top performance 30 kW • Connected load 35 kW (460 V / 60 Hz) • Weight approx. 7,100 kg • Dimensions L x W x H 3649 x 2490 x 2301 mm Accessories: • Does not include wheel opening stick fixture seen in the pictures • Stepless speed control, probe, pneumatic workpiece clamping • Electrostatic mist extractor • Fire extinguishing system • Oil collecting pan, 2 grinding wheel flanges, Complete set of Manuals Fodpfxeuqzdps Aaljpg • Turmoil Drive Chiller • Loader Pallets: 8pcs – 3/16”, 1/4”, 5/16”, 3/8”, 1/2”, 5/8”, 3/4”, 1-1/4” • 10pcs - HSK Wheel Arbors Software: • Windows XP Pro Svc Pack 3 • Tool Studio V3.3 • The computer was upgraded & is very fast rendering tools in Tool Studio Condition: • Excellent condition, very accurate & consistent. October 2023 Y axis Complete rebuilt, Linear motor, rails, Compensation Cylinder, Festo Booster Pump done by United Grinding. • 1 Micron Filtration system was used on the machine (not included), so it’s been kept extremely clean • We can load onto a flatdeck for shipping for $1200. We can also provide shipping quotes if you would like & crating for Sea Freight shipping.

Condition: good (used), Year of construction: 2005, operating hours: 114,129 h, functionality: fully functional, machine/vehicle number: 2820, Sale only within Germany Control System: Siemens Sinumerik Software: Haas Software 7.3 Number of Axes: 6 (X, X3, Y, Z, C, A) Grinding Spindle: - Continuously variable up to 8,000 rpm - Haas short taper - Grinding wheel diameter max. Ø200 mm Workpiece Spindle: - Up to 1,000 rpm - Centre height 175 mm - Clamping collet 3409 - Taper mount SK50 - Through bore Ø28.5 mm - Workpiece weight up to 2.5 kg - Indexing accuracy +/- 3.5 arcseconds - Input increment 0.001° Workpiece Support: Linear axis X3 with bushing holder Feed Drives: - Linear axes with ball screw spindles - Direct length measurement with 0.0001 mm resolution Workpiece Dimensions (Drills): - Ø 0.8 - 15.0 mm - Overall length 20 - 380 mm - Grinding length 10 - 360 mm - Max. workpiece weight 2.5 kg Chain Magazine: - 42 stations - Ø 0.8 - 15.0 mm - Length 80 - 250 mm - Max. workpiece weight 1.5 kg Stack Magazine: - Preparation for stack magazine for indexable inserts Measuring System CCD Area Camera: - Indexing and positioning of tools by coolant channel (from Ø0.8 mm) - Measurement of opening angle - Indexing of multi-groove drilling and reaming tools Renishaw Probe: - Touch-off for workpiece length/tool tip - Scanning of groove pitch - Positioning in coolant channel bore at tool tip Electrical Connection: - 63A main fuse - Mains voltage 400V - Frequency 50 Hz - Control voltage 24V - Rated power 21 kW Weight: 8 t Including: - Control cabinet cooling: water-water heat exchanger - Fire protection system: Kraft und Bauer extinguishing system - Extraction unit: Büchel Smog-Hog SH 2000/T - Dressing unit (stationary dresser) - Pressure plate ----- Fpedpfewpqkrjx Aaleg Operating Procedure – For Drills: - Manual loading of chain magazine outside machine enclosure - Automated workpiece handling system - Automatic collet chuck clamping - Workpiece positioning in the working area - Workpiece machining - Automatic return of workpieces onto powered conveyor belt Operating Procedure – For Solid Carbide Indexable Inserts: - Manual loading of stack magazine inside working area - Automated workpiece handling system - Automatic clamping with special clamping fixture - Workpiece positioning in the working area - Workpiece machining - Automatic return of processed workpieces onto storage system Drill Grinding: - Grinding of flute profile - Grinding of cutting edge - Grinding of circumference profile - Grinding of relief chamfer - Grinding of periphery chamfer - Cylindrical grinding Indexable Insert Grinding: - Grinding of support face and pin ----- Two additional identical machines are also available for sale!

Condition: good (used), functionality: fully functional, machine/vehicle number: 542, Equipment: Precision six-jaw chuck -- Cylindrical grinding device -- Fpedpfjycr Hyox Aaljg Dividing device -- Coolant device -- Grinding wheel holder -- Grinding wheels --- Operating instructions .