Used Wohlhaupter Toolholder for sale (244)

Condition: used, Double chamfering line TFA3/D/12.5 Tube facing & bevelling The MAIR TFA3/D/12.5 double chamfering line is a high-performance industrial solution designed for simultaneous facing and internal/external bevelling of steel tubes. The line is capable of processing two tubes at the same time, finishing both ends with high precision and repeatability. Engineered for demanding production environments, this chamfering line is suitable for carbon steel tubes, hot or cold rolled, pickled or zinc-aluminium coated. Thanks to its CNC-controlled chamfering units, automated tube handling and integrated chip removal and blowing systems, the MAIR TFA3/D/12.5 ensures high productivity, consistent quality and reduced manual intervention. Scope of supply The complete MAIR TFA3/D/12.5 double chamfering line is composed of: · Accumulating table for single-tube extraction via chain conveyors · Walking beam system for synchronized transport of two tubes · Two CNC chamfering machines, each equipped with: - Heavy-duty welded steel frame - Double chamfering unit with servo-driven linear movement - Tube clamping devices with interchangeable jaws - Toolholder disks for facing and internal/external bevelling - Hydraulic tool locking system (Morse taper) - Centralized lubrication system - Presetting bench for toolholders - Control panel · Chip conveyors located under the machines · Driven rollways and adjustable tube clamping stations · Blowing station for internal tube cleaning with adjustable system · Set of tooling (to be confirmed) Technical data · Manufacturer: MAIR Dcedpfx Apjyl Upvjbjn · Model: TFA3/D/12.5 · Application: Double tube facing and inside/outside bevelling · Tube diameter range: 17.2 – 89 mm (3/8" - 3") · Tube length: 4 – 12.5 m · Material: Carbon steel strip (hot rolled, cold rolled, pickled or zinc-aluminium coated) Tube diameter range: 17.2 – 89 mm (3/8" - 3") Tube length: 4 – 12.5 m Material: Carbon steel strip (hot rolled, cold rolled, pickled or zinc-aluminium coated)

Condition: new, Year of construction: 2026, Swing over bed 290 mm Swing over cross slide 185 mm Distance between centers 750 mm Bed width 180 mm Spindle bore 38 mm Spindle taper MT5 Number of spindle speeds 2 Dcodpfx Apezr Iytsbjn Spindle speed range 75–500 / 300–2000 rpm Number of metric threads 18 Metric thread range 0.2–3.5 mm Number of inch threads 21 Inch thread range 8–56 TPI Cross feed range 0.017–0.25 mm/rev Longitudinal feed range 0.07–0.72 mm/rev Tool post type: 4-position quick-change Maximum upper carriage travel: 80 mm Maximum cross carriage travel: 150 mm Maximum longitudinal slide travel: 700 mm Tailstock quill travel: 80 mm Tailstock quill taper: MT3 Main motor power: 2.4 kW Maximum drilling diameter: 20 mm Maximum face mill diameter: 63 mm Maximum end mill diameter: 20 mm Spindle speed: 50–2250 rpm Spindle taper: MT2 Head tilt range: -90° to +90° Head height adjustment: 260 mm Milling head motor power: 750 W Lathe stand/stand included SINO DRO 2 digital position readout Axles KIFES Toolholders Set of 7 turning tools 16 x 16 mm with folding inserts MK3 live center Fixed telescope (included) Movable telescope (included) 4-jaw chuck 160 mm Set of safety guards (CE compliant) Set of change gears (included) Reduction sleeve (included) Maintenance wrenches (included) Oil can (included) Length 1500 mm Width 750 mm Height with stand 1100 mm Weight with stand 360 kg A larger 320 x 1000 VARIO model is available - price €3200 net.

Condition: new, tool clamping area 50x50 mm weight 0,003 t turning tool with insert - like new. Dcjdpfx Apsd Iha Soben L/W/H: 400x50x50 mm

Condition: new, tool clamping area SK50 mm weight 1 kg Dsdpfx Asd Ihbkepbjcn

Condition: good (used), Year of construction: 1975, Offer 24204 Technical data: - Maximum swing diameter over bed: 420 mm - Centre distance: 1000 mm Dcedpfx Apsx Tqg Ijbon - Spindle bore: mm - Tailstock quill taper: MT 4 - Tailstock quill travel: 200 mm - Spindle speeds: 40 - 2000 rpm - Longitudinal & facing feeds - Metric thread pitches - Imperial threads - Module threads - Drive: 400 V - Includes: 3-jaw chuck - SWS steel toolholder with 3 inserts - Space required: approx. W 2800 x H 1250 x D 950 mm - Weight: approx. 2200 kg

Condition: new, Year of construction: 2026, functionality: fully functional, workpiece weight (max.): 60,000 kg, wheel width: 4,300 mm, feed length X-axis: 2,200 mm, feed length Y-axis: 2,500 mm, feed length Z-axis: 1,500 mm, position of the milling head: 0,02, table diameter: 3,500 mm, feed rate X-axis: 10 m/min, feed rate Z-axis: 6 m/min, total length: 6,000 mm, wheel diameter: 4,300 mm, total height: 7,000 mm, total width: 5,000 mm, workpiece diameter (max.): 4,300 mm, milling spindle length: 2,500 mm, type of input current: three-phase, milling length: 2,500 mm, spindle speed (max.): 2,500 rpm, spindle speed (min.): 1 rpm, Vertical Turning and Milling Lathe VL 40 CNC Turning Center’s Specifications Nominal Turning Envelope Faceplate Diameter 3.500 mm Machining Diameter: -maximum -minimum 4.000 mm 0 mm Swing diameter 4.000 mm Machining Heights 2.000 mm Work Piece Weight 60,000 kg Nominal Turning Travels X - Axis Ram Carriage From -100 mm To 2.250 mm + ATC travel Z - Axis Ram 1.500 mm Work Table WorkTable Diameter 3.500 mm Normal face plate with T-slots Work Table Speed: -for machining 1 - 110 rpm Power Continuous S1/ S6 57/75 kW Torque Continuous S1 / S6 70,000 / 90.000 Nm Turning main drive mechanism Gear box reducer and belt transmission, C axis drive Work Table Milling Speed 0.02 to 2 rpm Milling Torque Continuous S1 43,000 Nm Locking Table Torque (hydraulic double side devices) 60,000 Nm Z - Axis Ram Turning & Milling Ram Ram Size 300 x 300 mm Tool shank size: Shank 32*32 / 40*40 mm automated tool clamping Ram Speed 0 to 2.500 rpm Power Continuous S1 22 kW Torque Continuous S1 1.400 Nm Driving mechanism ZF gearbox, two stages, belt transmission ZF gearbox and main spindle bearing sets are supplied with coolant systems, individually for each. Tool taper BT 50 DIN 69871 / automated tool clamping Dsdpfey Dfraox Apbocn Tool Storage Number Of Tool Magazines two ATC -one for left side, 20 turning/milling/drilling stations -one for right side 20 milling/drilling and part probe Tool Storage 20 + 20 ATC turning capabilities: Maximum Singular Tool Weight – turning toolholder Maximum Singular Tool Weight – milling/drilling toolholder Total Tool Weight Maximum tool size – turning Maximum tool size – milling Maximum tool size - drilling Maximum length 50 kg 25 kg 600 kg 250 x 150 mm Dia. 300 mm Dia. 120 mm 600 mm Axes Drives X and U - Axes Ram Carriage Power Continuous S1 5.5 kW Thrust Continuous S1 40,000 N Z-Axis Ram Power Continuous S1 5.5 kW Thrust Continuous S1 40,000 N Power Continuous S1 11 kW Axes Rates X And Z - Axes Feed Rates 0.02 to 6,000 mm/min X And Z -Axes Rapid Rates 10,000 mm/min Coolant System Coolant Tank Capacity 2.000 L Coolant Pressure / Flow Rate: -internal coolant (turning) -internal coolant (milling) / pressure adjustments steps Filtration unit: -type 6 bar at 100 LPM 30 bar at 60 LPM Cartridge type Chips conveyor Conveyor type Hinged , frontal placed

Condition: used, Year of construction: 2000, Technical details: turning diameter: 800 mm turning length: 2965 mm max. turning dia. over saddle: 520 mm spindle bore: 92 mm turning speed range: 3 - 1800 U/min spindle head: Größe 11 total power requirement: 37 kW weight of the machine ca.: 6,5 t dimensions of the machine ca.: 5,2 x 2,2 x 1,9 m Dcjdpfx Aexxig Uopbjn Teach In Control MTC-K 3-jaw chuck ROTAS Dia. 400 mm face plate RÖHM Dia. 630 mm 4-station toolholder system PARAT 1 fixed steady coolant attachment and chip conveyor *

Condition: good (used), Year of construction: 2010, Conventional lathe, center high 254 mm, between centers 1000 mm, bore Ø 80 mm, 12 speed 30 - 2200 rpm, motor 5,5 kw, camlock 6'', dimensions 230x115x165 cm, weight ca. 1750 kgs; equipement: DRO on 2 axis, coolant device, 3-jaws chuck Ø 250 mm, rotating pin, tool post MULTIFIX C with toolholders, steady and following rest Djdpfx Aotv Iy Ejpbjcn

Condition: good (used), Year of construction: 1972, LZ Lathe Manufacturer: HEIDENREICH & HERBECK Type: 21RO Year: 1972 with Parat quick-change toolholder, 10 pieces, machine documentation, thread dial indicator, live center, 250 mm Forkardt chuck. Swing over bed: 430 mm Swing over cross slide: 255 mm Center distance: 1000 mm Turning length: 750 mm Spindle speeds: 19-2000 rpm, 5.5 kW motor Spindle bore: 56 mm Dcedpfx Ajt Ipi Iopbjn Further technical data available in the data sheet Required space: Length 2900 mm, Width 1100 mm, Height 1300 mm, Weight approx. 1750 kg Machine documentation available. Coolant system installed, chip guard/rear panel. The machine is in good condition and can be demonstrated under power.

Condition: new, Year of construction: 2025, neu 2025 010105 prompt, Zwischenverkauf v Bulgarien 50210 € 863.32 € 1 45200 € 600 mm 2000 mm 0 mm 80 mm 400 mm 400 mm 8 90 MK 21 20 - 2000 1/min 120 0.04 - 12 mm/U 0.02 - 6 mm/U 64 0.5 - 120 mm 60 - 1/4 Gänge/" 315 mm Djdewiqz Djpfx Apbscn 1 mm 90 mm 5 MK 2 mm 7.5 kW 3600 mm 1250 mm 1400 mm 3110 kg driven by conventional gearbox 3-axes digital readout Fagor 40i quick change toolpostAmestra Multisuisse type C with 4 holders (3 square, 1 round) 3-jaw chuck Bison3204/DIN6350, Ø 250 mm spindle dead center four way rapid traverse device electromagnetic brake longitudinal stop for 1 position coolant equipment full length rear splash guard leadscrew and shaft protection safety guard for the chuck toolholder guard levelling bolts and plates quick release tailstock low voltage machine lamp operating manual machine according to "CE" FURTHER TURNING LENGTHS (PRICES ON REQUEST): turning length 1.000 mm turning length 1.500 mm turning length 3.000 mm turning length 4.000 mm turning length 5.000 mm

Condition: excellent (used), Year of construction: 1997, functionality: fully functional, Hello I have for sale a reputable brand CNC lathe GILDEMEISTER CTX 400 V3 With driven tools and C axis. _ Type: CNC lathe machine Manufacturer: GILDEMEISTER Model: CTX 400 V3 Control: HEIDENHAIN 1190 + TURN PLUS overlay Country of manufacture: Germany Year of manufacture: 1997 _ Machine parameters: - head: 12 - tools for VDI 30 toolholders ( every second socket driven ) - max rpm 5000/min. - max length of turning in Z axis: 640 mm - max diameter of turning in X axis: 290 mm - C axis - driven tools - tool measuring probe - spindle holder BERG KH 200 - max. roller diameter Fi-65 mm- finished part pick-up - cooling system - hydraulic tailstock - chip conveyor - spindle drive power: 21 KW - DTR - machine weight: 5.2 tons _ WHY IS IT WORTH BUYING MACHINES at PPM ? - we have our own service _ stationary and mobile - we have already sold more than 700 DMG machines - possibility to start up the machine at the customer's - operator training and delivery of the machine to the customer included in the price Dcjdotw U E Uepfx Apbjn - all our machines are after professional technical inspection - 100% ready to work - purchase of the machine is possible through the installment system and leasing. _ www_ppmsc_en _ Tom_Contact_+48 504 009 641 Paul_Contact_+48 607 305 841

Condition: used, max. wheel diameter 500 mm gear width 75 mm max. module 5 Djdpfjzw N E Usx Apbocn min. module 0,5 no. of strokes 45 - 424 Hub/min total power requirement 6 kW weight of the machine ca. 3,6 t dimensions of the machine ca. 2,0 x 1,4 x 2,3 m Rapid traverse in the table. Change gears, toolholders, manuals.

Condition: used, Year of construction: 1995, turning diameter 560 mm turning length 1250 mm control Sinumerik 805 turning dia. over face-slide 340 mm spindle bore 63 mm spindle turning speed range 3 - 2500 U/min feeds - longitudinal 0,001 - 3 mm/U feeds - cross 0,001 - 3 mm/U rapid traverse longitudinal 7 m/min rapid traverse cross 3,5 m/min thread - mm pitch 0,5 - 140 mm thread - inch 1/4 - 56 Gang/ inch. thread - module mm main drive 19 kW clamping length max. 2250 mm total power requirement 24 kW weight of the machine ca. 4,8 t dimensions of the machine ca. 4,0 x 1,65 x 1,75 m controll Siemens 805, for cone turning, contour turning and Dcsdoymp Sujpfx Apben threat cutting. Machine has MULTIFIX toolholder system size "C", steady and 3 jaw chuck.

Condition: good (used), Year of construction: 2006, Parts shown by hand not come. Toolholders will come without cutting tools. Dodpfx Apoz Eiv Tjbecn Technical data are shown on pictures.

Condition: used, TECHNICAL DETAILS - Maximum workpiece diameter : 4 [mm] - Number of tools : 2 Dcjdpfszx Hkwex Apben - Feed system, standard lever, 2:1 ratio : 24 [mm] - Production with turret indexing : 1.25–31.5 [parts/min] - Production without turret indexing : 1.25 - 63 [parts/min] - Toolholder Spindle Speed : 4000 or 6000 [rpm] - Maximum clamping diameter of the drill chuck : 3 [mm] - Maximum drilling depth : 15 [mm] - Maximum Ø of the counter-gripper : 4 [mm] - Drilling speeds : 3000 / 5000 / 8000 / 12000 [rpm] - Turret indexing time : 0.33 [sec] POWER SUPPLY - Supply voltage : 220 [V] WEIGHT & DIMENSIONS - Machine floor space : 1100 x 680 [mm] - Machine height : 1600 [mm] - Machine weight : 870 [kg]

Condition: new, Year of construction: 2026, turning diameter over cross slide: 280 mm, spindle bore: 105 mm, turning diameter: 840 mm, total length: 1,520 mm, total width: 4,500 mm, total height: 1,650 mm, rotational speed (max.): 1,600 rpm, rotational speed (min.): 36 rpm, type of input current: three-phase, overall weight: 4,050 kg, The Bernardo Goliath 800 x 3000 professional metal lathe is a powerful industrial tool engineered for precise machining of large-scale components in both single-unit and series production. Equipped with a 3-axis digital readout and rapid longitudinal and cross feeds, this machine significantly reduces downtime while ensuring maximum working accuracy. Its impressive distance between centres of 3000 mm and large spindle bore (105 mm) enable it to handle even the most demanding mechanical engineering tasks with ease. The robust, induction-hardened bed made of cast iron guarantees exceptional stability and minimised vibrations, even during heavy-duty operation. This is the ideal solution for workshops seeking reliability, versatility, and high-performance cutting in the heavy-duty class. Key Features: - Solid bed constructed from precision-ground and induction-hardened cast iron for outstanding accuracy - State-of-the-art main spindle assembly with high-quality angular contact ball bearings - Centrally positioned, user-friendly feed and threading control elements - Standard with rapid longitudinal and cross feed to reduce downtime - Large, additionally hardened and polished gears ensure quiet and smooth operation - Removable gap bridge allows machining of larger workpieces - Tailstock can be offset for taper turning, handwheel features adjustable scale (0.02 mm) - Electromechanical foot brake minimises downtime - High performance even in face turning operations - 3-axis digital display and MULTIFIX size D toolpost system included in delivery - Capable of cutting trapezoidal and module threads! Technical Specifications: Distance between centres: 3000 mm Centre height: 420 mm Swing over bed: 840 mm Swing with gap bridge removed: 1060 mm Swing over cross slide: 280 mm Bed width: 400 mm Spindle bore: 105 mm Spindle mount: DIN 55029, D1-8 Spindle speed range: 36–1600 rpm Number of spindle speeds: 16 Longitudinal feed range: 0.063 – 2.52 mm/rev Cross feed range: 0.027 – 1.07 mm/rev Metric threads: (18) 0.5 – 7 mm Inch threads: (26) 2–28 TPI Quill diameter: 75 mm Quill stroke: 150 mm Tailstock taper: MK 5 Motor power: 9.0 kW Voltage: 400 V Dimensions (W x D x H): 4500 x 1520 x 1650 mm Weight approx.: 4050 kg Scope of Delivery: - 3-jaw chuck PS3-315mm /D8 - 630 mm face plate - 260 mm fixed steady rest - 110 mm travelling steady rest - Reducing sleeve - Centres (1x fixed / 1x revolving) - Electromagnetic spindle brake - Foot-operated safety brake - Coolant system - LED work light - Change gears set - Service tools Dodpjyr Naisfx Apbocn - 40-position tool post & toolholder set with 4 inserts (Multifix) - 3-axis digital display - Legally required safety guards - Complete DTR technical documentation in Polish - CE certificate - 24-month warranty for all customers at no extra cost

Condition: ready for operation (used), Year of construction: 1992, functionality: fully functional, spindle speed (max.): 3,750 rpm, bar diameter (max.): 26 mm, overall weight: 6,800 kg, No reserve price – guaranteed sale to the highest bidder! The machine is sold complete with collets, toolholders, and additional accessories! For further Schütte multi-spindle machines for sale from the same location, see below! TECHNICAL DETAILS Bar diameter round: 26 mm Bar diameter square: 19 mm Bar diameter hexagonal: 22 mm Bar diameter octagonal: 24 mm Spindle circle diameter: 270 mm Standard bar feed: 125 mm Special bar feed: 290 mm Longitudinal slide travel, standard total: 80 mm Longitudinal slide travel, standard working length: 63 mm Longitudinal slide travel, special total: 125 mm Longitudinal slide travel, special working length: 98 mm Cross slide travel, upper slide total: 40 mm Cross slide travel, upper slide working length: 25 mm Cross slide travel, middle slide total: 40 mm Cross slide travel, middle slide working length: 25 mm Cross slide travel, lower slide total: 50 mm Cross slide travel, lower slide working length: 31 mm Number of spindle speeds: 49 Spindle speed range I: 530–3,750 rpm Dcedpsz Agy Hsfx Apbon Spindle speed range II: 236–1,700 rpm Workpiece revolutions per working cycle, standard: 60–425 Workpiece revolutions per working cycle, short: 33.5–236 Workpiece revolutions per working cycle, extended: 95–670 Number of main times per spindle speed: 35 MACHINE DETAILS Rated drive motor power: 18.5 kW Drive motor speed: 1,500 rpm Dimensions & Weight Dimensions with control cabinet (L x W): 3,500 x 1,450 mm Length with bar guide: 6,470 mm Machine weight: 6,800 kg Space requirement for packed machine: 14 m³

Condition: used, Year of construction: 1977, faceplate diameter 2500 mm swing diameter 2700 mm turning height 2000 mm cross rail - adjustment 1500 mm workpiece weight max. 20.000 kg total power requirement 71 kW Control Siemens Sinumerik 840 Single-column vertical lathe 2000 x 2000mm Retrofit: 1997 Gr. turning diameter: 2700mm Dcedpeuddpgofx Apben Gr. distance f. face plate to bottom of toolholder: 2150mm chisel holder: 2150mm Support swivelling up to 30° Chisel cross-section: 240x240mm small plunging diameter: 300mm Special equipment: Re-moulding, taper turning, thread cutting, constant cutting speed

Condition: used, Technical details: x-travel: 800 mm y-travel: 800 mm z-travel: 800 mm turning speeds: 35-10.000 1/min spindle: 37 / 30 kW max. torque on the spindle: 525 / 206 Nm Tool bore: BT 50 rapid traverse: 60 m/min tool change unit: 160 Pos. size of pallet: 500 X 500 mm control: MAZATROL 640M Nexus Dcodpfewix E Rex Apbsn c-axis: 0,001° x 360.000 workpiece weight: 1.000 kg workpiece height max.: 1.000 mm interference area: 900 mm 2 pcs. horizontal machining centers (HCN 6000 + HCN 6000-II, 2008), interlinked with pallet pool (16 pallets) MAZAK FMS, 2 pallet changer, chipconveyor, coolant device with internal coolant supply, accessories for both machines: 18 pallets, approx. 300pcs. toolholders, miscellaneous devices for workpiece-clamping... *

Condition: new, measuring length bis 5000 mm Tube length 5280 mm numbers of toolholders 6 Rohr Edelstahl dimensions 5,3 x 0,3 x 0,2 m The length measuring system is available for retrofitting existing roller conveyors in lengths from 2 to 6 meters. The running rail made of rectangular tube 60 x 30 x 3. The steel measuring tape is self-adhesive. Dodpfovkiwhex Apbjcn The magnifying glass with 6x magnification makes it easier to adjust the settings precisely desired length. Danger: This is just the stop system without roller conveyor!

Condition: new, measuring length bis 3000 mm Tube length 3280 mm numbers of toolholders 4 Rohr galvanisch Verzinkt dimensions 3,3 x 0,3 x 0,2 m The length measuring system is available for retrofitting existing roller conveyors in lengths from 2 to 6 meters. The running rail made of rectangular tube 60 x 30 x 3. The steel measuring tape is self-adhesive. The magnifying glass with 6x magnification makes it easier to adjust the settings precisely Dsdpfxsvkiwns Apbecn desired length. Danger: This is just the stop system without roller conveyor!

Condition: new, measuring length bis 4000 mm Tube length 4280 mm numbers of toolholders 5 Rohr Edelstahl dimensions 4,3 x 0,3 x 0,2 m The length measuring system is available for retrofitting existing roller conveyors in lengths from 2 to 6 meters. The running rail made of rectangular tube 60 x 30 x 3. The steel measuring tape is self-adhesive. The magnifying glass with 6x magnification makes it easier to adjust the settings precisely Dcedpfovkiwujx Apben desired length. Danger: This is just the stop system without roller conveyor!

Condition: new, measuring length bis 2000 mm Tube length 2280 mm numbers of toolholders 3 Rohr galvanisch Verzinkt dimensions 2,3 x 0,3 x 0,2 m The length measuring system is available for retrofitting existing roller conveyors in lengths from 2 to 6 meters. Dedpfx Aevkiwzspbecn The running rail made of rectangular tube 60 x 30 x 3. The steel measuring tape is self-adhesive. The magnifying glass with 6x magnification makes it easier to adjust the settings precisely desired length. Danger: This is just the stop system without roller conveyor!

Condition: excellent (used), Year of construction: 2000, Dreh-Øüber Bett 320 mm Dreh-Øüber Support 185 mm turning length 1000 mm Spindelbohrungs -Ø/ Aufnahme 32 mm mm spindle turning speed range (12) 85 - 2000 U/min feeds - longitudinal 0,006 - 1,77 mm/min feeds - cross 0,003 - 0,888 mm/min thread - mm pitch 0,1 - 28 mm thread - module 0,1 - 1,75 mm thread - inch 2,5 - 75 inch. voltage 400 V / 50 Hz Dcodpfx Apotv Iibebjn power capacity 2,2 kW weight of the machine ca. 0.8 t dimensions of the machine ca. 1,8 x 0,8 x 1,4 m Quick-change toolholder with 5 cassettes, fixed steady, 3-jaw chuck Ø 200 mm, coolant device,

Condition: reconditioned (used), Year of construction: 1956, Lead and Feed Screw Lathe WEIPERT Year of manufacture: 1956 Spindle bore: 90 mm Centre distance: 3000 mm Swing over bed: 800 mm Swing over cross slide: 610 mm Swing in gap: 1120 mm Speed range: 7.5 – 475 rpm Dcjdpfjw Ew D Dsx Apbsn Comes with the following accessories: Multifix toolholder with 11 inserts Coolant system 3-jaw chuck 315 mm 3-jaw chuck 400 mm 3-jaw chuck 500 mm Faceplate 400 mm Faceplate 800 mm Faceplate 1000 mm Travelling steady Various turning tools (30 insert tools) 2 revolving centres 1 drill chuck Operating manual