Related Manuals for Pfaff 8304-020
Summary of Contents for Pfaff 8304-020
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Page 1: Instruction Manual
® Industrial 8304 -020 INSTRUCTION MANUAL This instruction manual applies to machines from the following serial numbers onwards: # 11 031 296-12-18 418/002 Betriebsanleitung engl. 06.09... - Page 2 The reprinting, copying or translation of PFAFF Instruction Manuals, whether in whole or in part, is only permitted with our previous authorization and with written reference to the source. PFAFF Industriesysteme und Maschinen AG Hans-Geiger-Str. 12 - IG Nord D-67661 Kaiserslautern...
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Page 3: Table Of Contents
Contents Contents ................. Chapter - Page Safety ..........................1 - 1 Regulations ........................1 - 1 General notes on safety ....................1 - 1 Safety symbols ......................1 - 2 Important points for the user ..................1 - 2 Operating and technical personnel ................. 1 - 3 .05.01 Operating personnel ....................... -
Page 4: Contents
Contents Contents ................. Chapter - Page Installation and commissioning ................. 8 - 1 Installation ........................8 - 1 .01.01 Adjusting the table height ....................8 - 1 .01.02 Connecting the compressed air ..................8 - 2 Commissioning ......................8 - 2 Switching the machine on/off .................. - Page 5 Contents Contents ................. Chapter - Page Adjustment ........................12 - 1 Notes on adjustment ....................12 - 1 Tools, gauges and other equipment ................12 - 1 Hot-air nozzle ........................ 12 - 2 .03.01 Side and angle alignment of the hot-airnozzle ...............12 - 2 .03.02 Height adjustment and distance of the hot-air nozzle from the feed rollers ....12 - 3 Adjusting the hot wedge ....................12 - 4...
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Page 6: Safety
Safety Safety Regulations This machine was built in accordance with the European regulations listed in the conformity and manufacturer’s declarations. In addition to this instruction manual, also observe all generally accepted statutory and other regulations and legal requirements - including those of the country in which the machine will be operated and all valid environmental-protection regulations. -
Page 7: Safety Symbols
Safety Safety symbols Danger! Special points to observe. Danger of hands being crushed! Danger of burns from hot surface! Danger from electric voltage! Caution Do not operate without finger guard and safety devices. Turn off the main switch and let the machine cool down before any setting up, maintenance or cleaning work! Important points for the user... -
Page 8: Operating And Technical Personnel
Safety Operating and technical personnel Operating personnel .05.01 Operating personnel are persons responsible for setting up, operating and cleaning the machine as well as for eliminating any faults which may occur. Operating personnel must observe the following: ● Always comply with the notes on safety in the instruction manual! ●... -
Page 9: Danger Warning
Safety Danger warning Fig. 1 - 01 Do not operate the machine without the protective cover 1 ! Danger of burns if the heating element 2 is touched! Do not put your fingers between protective cover 1 and swivel unit 3! Danger of crushing when swivel unit 3 is swung in and out of place! 1 - 4... -
Page 10: Proper Use
Proper use Proper use The PFAFF 8304-020 is a heat-sealing machine with straight post, available both as the hot- air or hot wedge model. The purpose of the machines is to heat-seal flexible thermoplastic materials such as e.g. protective covers, PVC-clothing, insulating and filter tubes, small tarpaulins and small tents, motorbike seats etc. -
Page 11: Specifications
Specifications ▲ Specifications Dimensions and weight: Length: ....................approx. 1265 mm Breadth: ....................approx. 600 mm Height: (without tape reel bracket) ............approx. 1450 mm Weight: ......................approx. 110 kg Mains voltage set for: ..............230 V± 10%, 50/60 Hz, single-phase Power input (hot wedge model): ............... -
Page 12: Disposal Of The Machine
Disposal of the machine Disposal of the machine ● The proper disposal of the machine is the responsibility of the customer. ● The materials used on the machine are steel, aluminium, brass and various plastics. The electrical equipment consists of plastics and copper. ●... -
Page 13: Transport, Packing And Storage
Transport, packing and storage Transport, packing and storage Transport to the customer’s premises Within Germany the machine is delivered without packing. Machines for export are packed. Transport within the customer’s premises The manufacturer bears no liability for transport within the customer’s premises. Disposal of packing The packing of this machine consists of paper, cardboard, fusible fabric and wood. -
Page 14: Explanation Of The Symbols
Explanation of the symbols Explanation of the symbols In this Instruction Manual, tasks to be carried out and important information are drawn to your attention by symbols. The symbols have the following meanings: Note, information Cleaning, care Lubrication Servicing, repairing, adjustment, maintenance (only to be carried out by specialist personnel) 6 - 1... -
Page 15: Controls
Controls Controls Main switch ● The machine is switched on or off by turning main switch 1. Position " 0 " : Machine is switched off Position " I " : Machine is switched on When switching off the machine, please observe the notes in Chapter 8.03 Switching the machine on and off! -
Page 16: Locking Foot Switch (Optional)
Controls Locking foot switch (optional) ● Following functions are triggered by foot switch 1 and 2. Switch 1: Positioning the workpiece (top feed roller is lowered) Switch 2: Starting the heat-sealing pro- cess (the heating element is swung into position/feed rollers are started) The functions triggered by pedal 1 differ according to the... -
Page 17: Status Display Of Temperature Control
Controls Status display of temperature control ● Depending on the status of the temperature control, diodes 1 - 6 light up. Diode 1 lights up when the actual temperature deviates from the required temperature by +/-50°C. Diode 2 lights up, if the temperature exceeds 650°C, or if the sensor breaks. -
Page 18: Regulator For Heat-Sealing Speed
Controls Regulator for heat-sealing speed ● The heat-sealing speed is set with regulator 1. ● Regulator 2 has no function. Fig. 7 - 07 Selection switch for operational modes ● The operational modes of the machine can be set with the selection switch 1 by means of four switch settings. -
Page 19: Regulator For Hot-Air Pressure (Only On Machines With Hot-Air)
Controls Regulator for hot-air pressure (only on machines with hot-air) ● The hot-air pressure is adjusted by turning regulator 1. ● The hot-air pressure level can be read from pressure gauge 2. The hot-air pressure must not drop below 0.2 bar! If the hot-air pressure is too low, there is a risk of the heating element burning out. -
Page 20: Installation And Commissioning
Installation and commissioning Installation and commissioning The machine must only be installed and commissioned by qualified personnel! All relevant safety regulations must be observed!. Installation Suitable connections for power and compressed air, an even and firm floor surface and sufficient lighting must be provided for at the installation site. Adjusting the table height .01.01 Fig. -
Page 21: Connecting The Compressed Air
Installation and commissioning Connecting the compressed air .01.02 ● Connect the compressed air hose to coupling 1. ● Pull regulator 2 up and turn it until gauge 3 shows an air pressure of 6 bar. The air must be completely oil- free and dry. -
Page 22: Switching The Machine On/Off
Installation and commissioning Switching the machine on/off Fig. 8 - 03 Fig. 8 - 04 ● Set main switch 3 at position "1". ● In addition, on machines with hot air, turn regulator 1, until the hot air pressure shown on gauge 2, is at least 0.2 bar. -
Page 23: Setting Up
Setting up Setting up All setting-up work must only be carried out by appropriately trained personnel!For all setting.-up work , the machine must be switched off. Inserting the sealing tape Adjusting the tape reel bracket to the size of the tape reel .01.01 Fig. -
Page 24: Adjusting The Tape Width And The Tape Brake
Setting up Adjusting the tape width and the tape brake .01.02 Requirement The sealing tape should 1. run in the centre of the feed rollers. 2. be fed tightly but still run easily through the guide section. 3. not be slack. Fig. -
Page 25: Adjusting The Penetration Depth
Setting up Adjusting the penetration depth The feed roller clearance depends on the thickness of the material to be sealed. The clearance is adjusted correctly, when one ply of the workpiece fits just between the feed rollers with the top feed roller lowered. Switch off the machine! Danger of crushing between the housing and adjustment... -
Page 26: Feed Rollers And Hot-Air Pressure, Heat-Sealing Temperature And Speed
Setting up Feed rollers and hot-air pressure, heat-sealing temperature and speed Fig. 9 - 05 Fig. 9 - 04 ● Switch the machine on. Before changing the feed roller and hot air pressure, the pressure on the appropriate regulator must first be set at "0". The required pressure can then be set. -
Page 27: Heat Sealing
Heat sealing Heat sealing The machine must only be operated by appropriately trained personnel! The operating staff must also make sure that only authorized persons are in the danger area of the machine! Heat-sealing principle In order to achieve optimum heat-sealing, certain conditions concerning the workpiece and the machine settings must be fulfilled. -
Page 28: Care And Maintenance
Care and maintenance Care and maintenance Clean hot wedge ....................as required Clean hot-air nozzle ..................as required Grind hot wedge .............. as required, usually one a week Control the air pressure ................daily, before use Clean water bowl of air filter/regulator ............ daily, before use Clean water bowl of fine filter .............. -
Page 29: Check The Air Pressure
Care and maintenance Check the air pressure ● Before each use check the air pressure on gauge 1. ● Gauge 1 must show a pressure of 6 bar. ● Adjust this setting if necessary. ● To do so, pull knob 2 up and turn it until the gauge shows a pressure of 6 bar. -
Page 30: Draining The Water Bowl Of The Fine Filter/Changing The Fine Filter
Care and maintenance Draining the water bowl of the fine filter/changing the fine filter Switch off the machine! Remove the compressed air tube from the air filter/regulator. Draining the water bowl: ● Open drain plug 1 and drain water into water bowl 2. -
Page 31: Lubricating The Drive Chains
The intervals for lubrication depend on working conditions (dampness, soiling etc.). Only use sodium bicarbonate grease with a dripping point of 150°C and a fulling penetration of 375 – 405 mm /10 at 25°C. We recommend PFAFF chain lubricant, order no. 280-1-120 243. 11 - 4... -
Page 32: Adjustment
Adjustment Adjustment Notes on adjustment All adjustments in this manual are based on a fully assembled machine and may only be carried out by expert staff trained for this purpose. Machine covers, which have to be removed and replaced to carry out checks and adjustments, are not mentioned in the text. -
Page 33: Hot-Air Nozzle
Adjustment Hot-air nozzle (only on machines with hot-air nozzle) Side and angle alignment of the hot-air nozzle .03.01 Requirement 1. When hot-air nozzle 5 has been swung into place, it should be positioned in the centre of the feed roller 6 in feed direction. 2. -
Page 34: Height Adjustment And Distance Of The Hot-Air Nozzle From The Feed Rollers
Adjustment Height adjustment and distance of the hot-air nozzle from the feed rollers .03.02 Requirement 1. The height adjustment of hot-air nozzle 5 is dependent on the material and can be set over a range of 0 – 10 mm (see magnifying glass). 2. -
Page 35: Adjusting The Hot Wedge
Adjustment Adjusting the hot wedge (only on machines with hot wedge) Hot wedge crosswise to feed direction .04.01 Requirement In the direction of feed the hot wedge 5 should be positioned in the centre of the feed rollers 6. Fig. 12 - 03 ●... -
Page 36: Height Adjustment Of The Hot Wedge
Adjustment Height adjustment of the hot wedge .04.02 Requirement 1. When the hot wedge has been swung into position, the tip of hot wedge 7 should be positioned a distance above the bottom feed roller equivalent to the thickness of the workpiece. -
Page 37: Distance Of The Hot Wedge To And Its Contact Pressure On The Feed Rollers
Adjustment Distance of the hot wedge to and its contact pressure on the feed rollers .04.03 Requirement 1. The hot wedge should rest on the workpiece. 2. The contact pressure of the hot wedge should be set, so that a good seam quality is guaranteed and the hot wedge cannot move back on cross seams. -
Page 38: Grinding The Hot Wedge
Adjustment Grinding the hot wedge .04.04 Grinding of the hot wedge is only required, if the hot wedge is deformed by wear or corrosion, or if a new hot wedge has been installed. Fig. 12 - 06 ● Set heat-sealing temperature at "0". Allow the hot wedge to cool down! Danger of burns if the hot wedge is touched! ●... - Page 39 Adjustment Change heating cartridge (only on machines with hot-air nozzle) Fig. 12 - 06 Wait until the heating element has cooled down! Danger of burns! Disconnect the mains plug! Danger from electric voltage! ● Loosen screw-on cable connection 1. ● Remove screw 2 and take off cap 3. ●...
- Page 40 Adjustment Change temperature probe (only on machines with hot-air nozzle) Requirement The tip of temperature probe 3 must be positioned in the centre of hot-air tube 4. Fig. 12 - 07 Wait until the heating element has cooled down! Danger of burns! Disconnect the mains plug! Danger from electric voltage! ●...
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Page 41: Drive Chains
Adjustment Drive chains Tensioning the main drive chains .07.01 Fig. 12 - 0 Switch off the machine! ● Loosen screws 1. ● Tension bottom drive chain 2 by shifting the mounting plate 3. ● Tension top drive chain with adjusting screw 4 (bolt 5). 12 - 10... -
Page 42: Tensioning Drive Chain In Bottom Post And To Top Feed Roller
Adjustment Tensioning drive chain in bottom post and to top feed roller .07.02 Fig. 12 - 07 Switch off the machine! ● Tension drive chain in post with adjusting screw 1 (nut 2). ● Tension drive chain of top feed roller with adjusting screw 3 (nut 4). 12 - 11... -
Page 43: Fuses
Adjustment Fuses Fig. 12 - 08 The purpose of the fuses is to provide protection against major damage in case of a short-circuit or overload. Disconnect the mains plug! Danger from electric voltage! Before switching the machine on again, first eliminate the cause of the fault! residual current operated device main fuse 12 - 12... -
Page 44: Circuit Diagrams
Circuit diagrams Reference list for the circuit diagrams Temperature control device Temperature sensor Air heater Machine lamp Leakage current circuit breaker Pressure monitor Fault signal B1 broken sensor or temperature > 600º C K1-K3 Pre-selection of operating modes Restart inhibitor after voltage loss with activated S3 Roller drive start delay K6, K7 Roller drive M1 preparation for forwards motion... - Page 45 91-211 696-95 Circuit diagram - general plan Part 1 Version 18.03.99 13 - 2...
- Page 46 Circuit diagram - general plan 91-211 696-95 Version 18.03.99 Part 2 13 - 3...
- Page 47 91-211 696-95 Circuit diagram - general plan Part 3 Version 18.03.99 13 - 4...
- Page 48 Circuit diagram - general plan 91-211 696-95 Version 18.03.99 Part 4 13 - 5...
- Page 49 91-211 696-95 Circuit diagram - general plan Part 5 Version 18.03.99 13 - 6...
- Page 50 PFAFF Industriesysteme und Maschinen AG Hans-Geiger-Str. 12 - IG Nord D-67661 Kaiserslautern Telefon: +49 - 6301 3205 - 0 Telefax: +49 - 6301 3205 - 1386 E-mail: info@pfaff-industrial.com Gedruckt in der BRD / Printed in Germany / Imprimé en la R.F.A. / Impreso en la R.F.A...