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Related Manuals for Buhnen HB 710
Summary of Contents for Buhnen HB 710
- Page 1 Operating Manual Hot Melt Applicator HB 710/HB 710 Spray...
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Page 2: Table Of Contents
Table of Contents General ..................................2 1.1 Scope of use ................................2 1.2 Technical data ................................ 2 Safety instructions ..............................3 2.1 Potential hazards ..............................3 2.2 Instructions for safe operation ..........................3 Starting ..................................4 3.1 Connecting up ................................ 4 3.1.1 Connecting up (operation without working bracket/workstation) ....................4 3.1.2 Connecting up (operation with working bracket/workstation) . - Page 3 Arrangement Working bracket Working brackeet Applicator Pos. Description Pos. Description Compressed air connection Lever Water separator Closure cap Pressure regulator Suspension point Pressure gauge Protection cap Digital display Spray air choke Start/Stop button Protection cap Set button Trigger Down button Handle Up button Stand hoop...
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Page 4: General
General General Please read this Operating Manual through carefully and completely before first using the Applicator. Pay particular attention to the safety instructions in Section 2. This Operating Manual must always be within easy reach for any user. Scope of use The HB 710/HB 710 Spray Applicator is for the melting and metered discharge of melts (thermoplastic substances such as hot-melt adhesives, waxes, etc.) as a bead (HB 710) or spray-on coating (HB 710 Spray) using interchangeable application tools (use as in- tended). Technical data Model HB 710 HB 710 Spray Part No. H218600 H218700 Kit includes Applicator, toolset, working bracket / workstation (optional) Weight approx 3 lbs / 1.35 g approx 3.3 lbs / 1.50 kg Power connection 120V AC / 60 Hz / earthing-pin plug Power requirement [W] Power consumption [A] Protection (as per DIN IEC 34 T5) IP30 Safety class I (safety earth terminal) (as per DIN VDE 0720) Temperature control electronic Temperature limitation thermal cut-out (500° F ±19.8° F / 260 °C ±11 °C) -
Page 5: Safety Instructions
Safety instructions Safety instructions Potential hazards Danger! Never point the operation-ready device at people. Danger from high pressure! Burn Hazard Nozzle (1) and molten adhesive can be over 390° F / 200 °C hot. Wear heat-resistant gloves if contact is unavoidable. Risk of Explosion! When working with oxygen or combustible gases there is risk of explosion! Odor nuisance! Hot-melt adhesives give off fumes which can cause odour nuisance – so ensure adequate ventilation. Improper use may in isolated cases lead to irritation of the mucous membrane. In this case seek immediate medical advice! Instructions for safe operation Guard against malfunctions and operating errors by always following these instructions precisely: • In no circumstances may the maximum permitted operating pressure (87 psi / 6 bar) be exceeded. • Remove combustible or heat-sensitive objects from the area of the nozzle (1). • When warm the device must be put down on the support hoop (18) or working console. It must not be laid on its side. Otherwise melt may escape uncontrolled through the vent holes and present a burn hazard. • Never operate the trigger (16) forcibly. • Protect the device from moisture and damp (protection against electric shock). -
Page 6: Starting
Starting Starting Connecting up 3.1.1 Connecting up (operation without working bracket/workstation) To connect up the device proceed as follows: 1. Fit the stand: • To do this insert pin (B) of the base (1) into hole (A) in the casing. • Move the base (1) in direction (C) until it is just in contact with the casing. • To dismantle the base do the above in reverse order. 2. Place the device on the base and stand hoop. 3. Fit the supplied pressure-reducing valve to a quick-action coupling in the compressed- air supply. The water separator must be facing downwards when you do this. Observe the requirements made of the compressed-air supply (Section 1.2, “Technical data“). 4. Set the operating pressure to 58 psi / 4 bar with the pressure regulator (3). 5. Connect the mains plug to a socket outlet with earthing contact. 6. Switch on the device. The device is now ready for use. 3.1.2 Connecting up (operation with working bracket/workstation) To connect up the device proceed as follows: 1. Place the device in the working bracket. -
Page 7: Settings On The Temperature Regulator
Starting Settings on the temperature regulator 3.3.1 Setting the working temperature 1. To set the working temperature press the Set button. The current working temperature is displayed. 2. Hold the Set button down. Select the required working temperature using the Up/Down buttons. Briefly pressing the Up or Down button changes the working temperature in steps of 1° F / 1°C per button-press. Pressing the button for longer changes the working tem- perature continuously. The new setting is saved automatically when the buttons are released. 3.3.2 Reading out and setting the control parameters Pressing the Up and Down buttons simultaneously for at least 4 s brings up a parameter list. Some parameters can be set, others only read out. The table below summarises the parameters: Function Settable Setting Standard Customer ram- range value value eter Setpoint lowering 1…180° F... -
Page 8: Operation
Operation >4 s Display value value (only P1, P2, P19) Fig. 3.3.2/1: Setting parameters Operation Operating position The device may be operated only with the nozzle pointing downwards. In other posi- tions melt may get into the compressed-air ducts and damage the device. Fig. 4.1/1: Permitted operating position... -
Page 9: Charging
Operation Charging Burn hazard! Nozzle and molten adhesive can be over 390° F / 200 °C hot. Always wear heat-resistant gloves when performing the steps described below. 1. Place the device in the working bracket or on the base. 2. Switch the device on (see Section 3.2). Wait until the working temperature has been reached. 3. Take hold of the device by the handle with one hand (17). With the other hand turn the lever (10) clockwise through 180º and swivel the closure cap open. 4. Fill the tank to a level not less than 2 cm below the rim. The maximum level is marked on the device with a sticker (see illustration left). Do not charge the device above this level since the melt expands when heated. max. Level 5. Swivel the closure cap back. Turn the lever (10) anticlockwise as far as it will go, in order to lock the cap. Discharging and metering melt 1. Place the device in the working bracket or on the base. 2. Switch the device on. Wait until working temperature has been reached. 3. Check that there is enough melt in the tank. Burn hazard! If the device is “run dry” drops of melt may escape uncontrolled and endanger the opera- tor and persons in the vicinity. Every time you actuate the trigger, therefore, first carry out step (3.) above. 4. Actuate the trigger (16) You can meter the quantity discharged by altering the pressure (max. 87 psi / 6 bar) at the pressure regulator (3) and/or selecting an appropriate nozzle. -
Page 10: Adjusting The Spray Pattern (Hb 710 Spray Only)
What, if… Adjusting the spray pattern (HB 710 Spray only) The spray pattern is altered by adjusting the spray air. Set the optimum spray pattern by turning the spray-air choke (14) in the protective sleeve (13): • Turning it clockwise decreases the spray-air pressure. • Turning it anticlockwise increases the spray-air pressure. Automatic temperature reduction (ACE) Unnecessary thermal loading of the melt should be avoided. The device therefore switch- es to standby mode at reduced temperature when the trigger has not been actuated for a considerable time (paused operation). In the condition as supplied the temperature is reduced by 72° F / 40 °C after 30 minutes’ paused operation. The programming of the relevant parameters is described in Section 3.3.2. Briefly actuate the trigger or the Up or Down button to quit standby mode. The device im- mediately reheats to working temperature. Switching off 1. Press the Start/Stop button (6) for approx. 1 s until the display goes out. 2. Adjust the operating pressure down to “0” with the pressure regulator (3) or disconnect the compressed-air supply. What if... This Section summarises the status and error messages and provides help in eliminating errors. -
Page 11: Troubleshooting
HB710: 6.2, 6.3 Clean or replace cone nozzle and if necessary nozzle end HB 710 Spray: Clean or replace swirl nozzle, pressure spring and ball Stock temperature too low Raise temperature 3.3.1 Compressed air escapes from Insufficient cover pressure Increase cover pressure closure cap (11) Gasket dirty Clean sealing faces Compressed air escapes from Connections not airtight Tighten or replace gaskets service unit Sight glass of water sepa- Replace sight glass rator (2) cracked HB 710 Spray only Spray pattern not ideal Spray pattern wrongly set Adjust spray air Nozzle system clogged or Clean or replace swirl 6.3.4 damaged nozzle, pressure spring and ball... -
Page 12: Servicing/Maintenance
Servicing/maintenance Servicing/maintenance Danger! Danger due to inadvertent triggering. Disconnect the compressed air supply before all maintenance and service work. Danger! Voltage hazard. All operations which necessitate opening the device may be performed only by qualified electricians. Burn hazard! Nozzle (1) and molten adhesive can be over 390° F / 200 °C hot. Wear heat-resistant gloves when performing servicing and maintenance operations. Service intervals Observe the stated service intervals to ensure always correct and reliable operation: Weekly: Inspect and if necessary drain the service-unit water separator (see Fig. 6.1/1) Check that all parts are present, leak-free and undamaged and all screws and lines securely seated Remove adhesive residues and other contaminants, especially on the inside of the cover max. level press to drain Fig. 6.1/1: Draining the water separator Cleaning • Do not use aggressive cleaning agents for cleaning the device. These may damage device components. We recommend cleaning with paraffin oil. • Replace completely parts which are no longer cleanable (e.g. because of burnt-on or reacted hot-melt adhesive). We recommend having this work done by the manufacturer or distributor. -
Page 13: Cleaning The Nozzle
Locking ring (A2) Swirl nozzle (B3) Cone nozzle (A1) Air cap (B2) Cap ring (B1) Fig 6.3/1: Nozzle systems in detail 6.3.1 Replacing the cone nozzle (HB 710) Tools needed • 2 open-end spanners size 19 • 1 Seeger circlip ring pliers 1. Disconnect the compressed air supply. 2. Let the device heat up thoroughly. 3. Secure the nozzle foot (A5) and unscrew the cone nozzle (A1). -
Page 14: Replacing The Swirl Nozzle, Pressure Spring & Ball (Hb 710 Spray)
Servicing/maintenance 6.3.3 Replacing the swirl nozzle, pressure spring & ball (HB 710 Spray) Tools needed • 1 hook spanner • 1 open-end spanner size 11 • 1 open-end spanner size 32 or pipe wrench There must be no melt at all left in the tank when the nozzle end is replaced. Therefore discharge the melt completely, e.g. into a collecting vessel. 1. Disconnect the compressed-air supply. 2. Release the cap ring (B1) by turning it when warm without using force. 3. Remove the protection cap (B6) and air cap (B2). 4. Loosen the swirl nozzle (B3) with the open-end spanner size 11. Fix it by locknut with the open-end spanner SW32 or pipe wrench. 5. Remove the pressure spring (B4) behind the swirl nozzle and the ball (B5). 6. Fit the new components in reverse order. Adjusting the cover pressure Tools needed • 1 hexagon socket spanner size 1.5... -
Page 15: Replacing The Cover Gasket
Servicing/maintenance Replacing the cover gasket Tools needed • 1 Phillips-type screwdriver size 1 Position carefully when assembling Fig. 6.5/1: Replacing the cover gasket There must be no melt at all left in the tank when the cover gasket is replaced. Therefore discharge the melt completely, e.g. into a collecting vessel. 1. Let the device heat up. Continue activating the trigger until the tank is completely empty. 2. Disconnect the compressed air supply. 3. Disassemble the entire closure unit (see Chapter 6.7). 4. Release the fastening screws (D1) of the sealing plate (D2) with the Phillips screw- driver. Carefully remove the sealing plate. 5. Carefully remove the gasket (D5) from the pressure plate (D6). 6. Set the new gasket in the pressure plate in such a way that it fits evenly all over. 7. Mount the sealing plate. Observe the position of the washer (D3) and the O-ring (D4) of the ventilation opening. Tighten the counter nuts (D1) alternately. -
Page 16: Replacing The Valve Assembly
Servicing/maintenance Replacing the valve assembly Tools needed • 1 hexagon socket spanner size 1 • 1 hexagon socket spanner size 2.5 • 1 hexagon socket spanner size 3 • 1 auxiliary screw M4 Fig 6.6/1: Replacing the valve assembly 1. Let the device heat up. Continue activating the trigger until the tank is completely empty. 2. With the cover closed undo the fixing screw (E1) of the lever (E2) with the hexagon socket spanner size 3. Remove the lever and carrier (E3). 3. Undo the screws (E4) with the hexagon socket spanner size 2.5. Remove the cover casing (E5). 4. Screw the auxiliary screw M4 in to the clamping piece (E7). Release the clamping screw (E6) with washer with a 2.5 mm Allen key. Carefully remove the clamping piece with auxiliary screw M4 from the valve housing. Also remove the spring (E8) and the cone (E9). 5. Decrease the pressure to 14.5…29 psi / 1..2 bar. Briefly actuate the trigger. The burst of pressure ejects the valve (E9) and spring (E10) from the valve housing. Hold a cloth in front of the opening to catch these (hot!) parts. 6. Fit the new components, cover casing and lever in reverse order. -
Page 17: Replacing The (Complete) Cover
Servicing/maintenance Replacing the (complete) cover Tools needed • 1 hexagon socket spanner size 2.5 • 1 hexagon socket spanner size 3 • 1 open-end spanner size 13 Fig. 6.7/1: Replacing the cover 1. Let the device heat up. Continue activating the trigger until the tank is completely empty. 2. With the cover open undo the fixing screw (F1) of the lever (F2) with the hexagon socket spanner size 3. Remove the lever and carrier (F3). 3. Undo the screws (F4) with the hexagon socket spanner size 2.5. Remove the cover cas- ing (F5). 4. Release and remove the Seeger circlip ring (F6). 5. Pull the entire closure unit (F7) off from the axle (F8). Carefully set the new closure unit on the axle. 6. Mount the Seeger circlip ring (F6). 7. Release the counter nut (F9) with the SW 13 open-end wrench. 8. Adjust the tie bolt by twisting it so that its foot slides cleanly into the recess in the hous- ing when the lid closes. Then retighten the counter nuts. Check again to see if the cover closes cleanly. If necessary, readjust the tie bolt. 9. Mount the cover casing and the lever. -
Page 18: Repairs
Repairs Repairs Repairs other than those described in this Operating Manual may be undertaken only by persons appointed by the manufacturer or other technically competent persons using BÜHNEN original replacement parts. Warranty The device has been developed and manufactured in accordance with the most up-to- date technical knowledge. We provide the initial purchaser with a warranty according to statutory requirements for function, materials and processing. Normal wear and tear is excepted. The warranty ends if improper treatment, use of force, repairs by third parties or the fitting of non-original replacement parts is evident. The warranty covers repair or replacement at our discretion. A warranty extending beyond the kit supplied by us is precluded, since proper and expert use of the device is outside our control. Please note our terms of business! Disposal Pass the device, packing and fittings for environmentally correct recycling/reuse (in ac- cordance with European Parliament and Council Directive 2002/96/EC of 27th January 2003). -
Page 19: Spare Parts
Spare parts Spare parts 10.1 HB 710 10.1.1 Base Unit 6, H206065 H218643 Spare parts list Pos. Order no. Quantity Designation H105703 Warning label H206030 Grip shell kit H206033 Trigger H206034 Tank insulation H206039 Stand hoop H206065 Supply cable 3 m US H218643 Thermostat complete 120 V H206048 Micro switch H206101 Valve complete H206104... -
Page 20: Melt Tank
Spare parts 10.1.2 Melt Tank 4, H206648 Spare parts list Pos. Order no. Quantity Designation H206004 Temperature tracer H206018 Hose H206020 H206648 Heater H217195 Tank unit H217196 front kit unit bead KDN0517 Screw KDN0529 Toothed washer KDN0681 Screw KDN0704 Screw KDN0726 Washer LD0074 O-ring LDF0019 Sealing ring LDH0143 O-ring LDN0131... -
Page 21: Nozzle Kit
KD0167 LDF0019 LDH0130 Protection cap Valve seat Washer Locking ring Sealing ring O-ring LDN0158 MC0057 O-ring Blind plug M5 Spare parts 10.2 HB 710 Spray 10.2.1 Base Unit 6, H206065 H218643 Spare parts list Pos. Order no. Quantity Designation H105703 Warning label H206030 Grip shell kit H206033 Trigger H206134... -
Page 22: Melttank
Spare parts 10.2.2 Melttank Attention 6, H206648 Attention Spare Parts list Pos. Order no. Quantity Designation CCN0231 Reduction valve CCN0275 Valve H206004 Temperature tracer compl. H206018 Hose H206020 H206648 Heater H217195 Tank unit H217596 Front kit unit spray KD0269 Screw KDN0517 Screw KDN0529 Toothed washer KDN0681 Screw KDN0704 Screw KDN0726 Washer... -
Page 23: Nozzle Kit
Spare parts 10.2.3 Nozzle Kit Spare parts list Pos. Order no. Quantity Designation H206015 Dividing wall H206135 Protection cap H206172 H206177 Nozzle block complete FD0113 Ball KDF0004 Spring LDH0130 O-ring LDN0158 O-ring H206183 Spray nozzle kit, 37° 1.5 mm... -
Page 24: Closure
Spare parts 10.3 Closure Attention of position Spare parts list Pos. Order no. Quantity Designation H206054 Sealing plate H206056 Cover sealing H206059 Tie bolt H212001 Carrier H212036 Closure cap H212037 Lever H212061 Washer H212062 Cover H212097 Valve compl. H217193 Closure unit KD0464 Screw KDN0583 Screw KDN0625 Washer KDN0661 Screw... -
Page 25: Working Bracket
Spare parts 10.4 Working Bracket Spare parts list Pos. Order no. Quantity Designation H206066 Power cord assy. H206403 Edge protection 300 mm H206414 Holding fixture H206415 Console H206417 Edge protection 200 mm H206425 Air kit D = 33, complete H206508 Hose HC0007 Hose clamp KD0383 Hexagon nut KDN0524 Washer KDN0642 Cap nut KDN0726 Washer KDN0801 Screw KDN0906 Screw KDN0728 Screw... - Page 26 Spare parts 10.3 Closure Attention of position Spare parts list Pos. Order no. Quantity Designation H206054 Sealing plate H206056 Cover sealing H206059 Tie bolt H212001 Carrier H212036 Closure cap H212037 Lever H212061 Washer H212062 Cover H212097 Valve compl. H217193 Closure unit KD0464 Screw KDN0583 Screw KDN0625 Washer KDN0661 Screw...
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Page 27: Workstation Kit
Diagrams Diagrams 11.1 Wiring diagram Micro switch... -
Page 28: Diagrams
Diagrams 11.2 Pneumatic diagram = 87 psi / 6 bar...
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