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Related Manuals for Buhnen HB 700
Summary of Contents for Buhnen HB 700
- Page 1 Operating Manual Hot Melt Applicator HB 700 / HB 700 Spray...
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Page 2: Table Of Contents
Table of Contents General 1.1 Scope of use 1.2 Technical data Safety instructions 2.1 Potential hazards 2.2 Instructions for safe operation Starting 3.1 Connecting up 3.1.1 Connecting up (operation without working bracket/workstation) 3.1.2 Connecting up (operation with working bracket/workstation) 3.2 Switching on 3.3 Settings on the temperature regulator 3.3.1 Setting the working temperature 3.3.2 Reading out and setting the control parameters Operation 4.1 Operating position 4.2 Charging 4.3 Discharging and metering melt 4.4 Adjusting the spray pattern (HB 700 Spray only) 4.5 Automatic temperature reduction (ACE) 4.6 Switching off What if... - Page 3 Arrangement Working bracket Workit Applicator Pos. Description Pos. Description Compressed air Lever connection 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
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 700/HB 700 Spray Applicator is for the melting and metered discharge of melts (thermoplastic substances such as hot-melt adhesives, waxes, etc.) as a bead (HB 700) or spray-on coating (HB 700 Spray) using interchangeable application tools (use as inten- ded). Technical data Model HB 700 HB 700 Spray Part No. H212500, H212600, H213500, H215700, H212700, H212800 H215800, H215900 Kit includes Applicator, toolset, working bracket / workstation (optional) Weight approx. 3.09 lbs / 1.4 kg approx. 3.75 lbs / 1.7 kg... -
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 adequa- te 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. 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 tempe- rature 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:... -
Page 8: Operation
Operation >4 s Display value value (only P1, P2, P19) Fig. ../1: Setting parameters Operation Operating position The device may be operated only with the nozzle pointing downwards. In other positi- ons melt may get into the compressed-air ducts and damage the device. Fig. .1/1: Permitted operating position... -
Page 9: Charging
Operation Charging Burn hazard! Nozzle and molten adhesive can be over 392 °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 700 Spray Only)
What, if… Adjusting the spray pattern (HB 700 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 swit- ches 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 immediately reheats to working temperature. -
Page 11: Troubleshooting
Nozzle system clogged HB700: 6.2, 6.3 Clean or replace cone nozz- le and if necessary nozzle HB 700 Spray: Clean or replace swirl nozz- le, 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 700 Spray only Spray pattern not ideal Spray pattern wrongly set Adjust spray air Nozzle system clogged or Clean or replace swirl nozz- 6.3.4 damaged le, pressure spring and ball... -
Page 12: Servicing/Maintenance
Servicing/maintenance Servicing/maintenance 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 392 °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: Daily: 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 Weekly: Remove adhesive residues and other contaminants, especially on the inside of the cover max. level press to drain Fig. .1/1: Draining the water separator Cleaning • Do not use aggressive cleaning agents for cleaning the device. These may damage device components. -
Page 13: Cleaning The Nozzle
Swirl nozzle (B3) Air cap (B2) Cone nozzle (A1) Cap ring (B1) Fig ./1: Nozzle systems in detail 6.3.1 Replacing the cone nozzle (HB 700) Tools needed • 2 open-end spanners size 19 1. Fix the nozzle end (A2) by locknut and unscrew the cone nozzle (A1). 2. Screw the new cone nozzle on hand-tight to begin with. 3. Allow the cone nozzle to heat up for approx. 2 min. 4. Fix the nozzle end by locknut again. Screw the new cone nozzle on firmly (without using force). -
Page 14: Altering The Nozzle Positioning (Hb 700)
The position of the cone nozzle can be pivoted at will around the centre line of the tank (A6). 1. Heat the device up to 338 °F / 170 °C over approx. 15 min. The device must be thoroughly heated through. 2. Disconnect the compressed-air supply. 3. Loosen the cheese-head screw (A5) in the protection cap (A4) by half a turn. 4. Rotate the valve seat (A6) in the required direction with the open-end spanner. 5. Retighten the cheese-head screw (A5). 6.3.4 Replacing the swirl nozzle, pressure spring & ball (HB 700 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. -
Page 15: Replacing The Cover Gasket
Servicing/maintenance 5. Close and lock the cover. If the cover will not close, keep turning the adjusting screw back (clockwise) by approx. 15° until the cover closes easily. 6. Actuate the trigger. • If the cover now closes correctly, proceed at step 7. • If the cover still does not close correctly, repeat the adjustment from section 4. 7. Open the cover again. 8. Tighten the clamping screw (C1). 9. Fit the lever fixing screw (C4). Replacing the cover gasket Tools needed • 1 Phillips-type screwdriver size 1 Position carefully when assembling with cover Fig. ./1: Replacing the cover gasket 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. -
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 ./1: Replacing the valve assembly 1 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). 2. Undo the screws (E4) with the hexagon socket spanner size 2.5. Remove the cover casing (E5). -
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 8 • 1 open-end spanner size 13 Fig. ./1: Replacing the cover 1. With the cover open undo the fixing screw (F1) of the lever (F2) with the hexagon so- cket spanner size 3. Remove the lever and carrier (F3). 2. Undo the screws (F4) with the hexagon socket spanner size 2.5. Remove the cover casing (F5). -
Page 18: Repairs
Repairs 6. First fit the hose screw coupling (F11). The new cover is now secured to the shaft. Now fit the hose screw coupling (F6). 7. Adjust the feed rod by twisting it so that its base slides cleanly into the recess in the casing when the cover is closed. Then tighten the locknut. Check again that the cover can be closed cleanly. If necessary readjust the feed rod. 8. Fit the cover casing and lever. 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. - Page 20 Distributed by PAM Fastening Technology Inc. Division of BÜHNEN Charlotte, N. C. USA Phone (704) 394 31 41 Fax (704) 394 93 39 www.pamfast.com sales@pamfast.com...