VS 240 GB 09.02.2005 -

OPERATING INSTRUCTIONS

VS 240

- Premelter for granulated hotmelt glue -

HARDOHotmelt premelt and application systems

Read this operating manual thoroughly prior to starting up the machine.It contains important information for the installation, operation and maintenance of the machine.

Keep the operating manual with the machine as a reference book and for possible subsequentowners.

GBVersion:

VS 240 GB 09.02.2005.sxw25.02.2005

Model 02 2005 Machine-no.: ................

page 2 VS 240

page 4 VS 240

Preface to the operating instructions

The operating instructions and the short instructions must be permanent available at the operating siteof the machine!

These operating instructions are intended to familiarise the operator with the machine and to utilise it to its fullintended potential.

In the operating instructions, you find important information to the functions and precaution measureswhich for:

certainpropereconomic

Work with the machine are necessary.

Your notice avoids:

• Dangers• Repair costs• Loss times

The reliability and lifespan of the machine is increased.

The operating instructions is to be read and is to be used by each person, that has to work with orat the machine, as e.g.:

• Operation inclusive:

• Set up• Overcoming malfunctions during the course of operation• Removal of production wastes• Care• Disposal of operating and auxiliary materials

• Maintenance inclusive:

• Maintenance• Repair

• Dismantling / transport

Delegated is.

To note are further:

• Binding regulations to the accident prevention of the user country and the operating site! • The accepted, technical rules for safe and proper operation must be observed!

Errors as well as modifications of the construction and technical data are excepted!

VS 240 page 5

Attention !

The premelter may be turned on only with pressure.

The minimal working pressure amounts to 2 bar. If there is no pressure, the hotmelt granulate becomes too warm and theglue sticks at the housing. The hotmelt granulate don’t swirls to the melting plate.

The premelter may only be operated with hotmelt granulate inside.

If the level of the hotmelt granulate reaches the lower window, newhotmelt granulate has to be filled in. Without hotmelt granulate, the melting plate is overheated.

page 6 VS 240

Index1. Instructions for the manual................................................................................................................................................10

1.1. Warnings and symbols..............................................................................................................................................101.2. Target groups of the individual areas........................................................................................................................101.3. Safekeeping of the operating manual / brief instructions.........................................................................................10

2. SAFETY INSTRUCTIONS..............................................................................................................................................112.1.Principle, intended use...............................................................................................................................................112.2. Organisational measures...........................................................................................................................................122.3. Personnel selection and qualification........................................................................................................................122.4. Safety instructions - standard operation....................................................................................................................122.5. Safety instructions - maintenance.............................................................................................................................132.6. Reference to particular hazards.................................................................................................................................13

2.6.1. Electrical energy...............................................................................................................................................132.7. Additional information..............................................................................................................................................13

3. Getting to know the machine / spare parts.........................................................................................................................143.1. Operating elements....................................................................................................................................................143.2. Further elements........................................................................................................................................................163.3. Safety measures.........................................................................................................................................................203.4. Melting capacity........................................................................................................................................................20

4. MACHINE INSTALLATION...........................................................................................................................................214.1. Important references..................................................................................................................................................214.2. Mount the glue level probe.......................................................................................................................................214.3. Fastening the premelter.............................................................................................................................................22

5. STARTING UP THE MACHINE.....................................................................................................................................245.1. Machine installation..................................................................................................................................................24

5.1.1. Electrical connection........................................................................................................................................245.1.2. Pneumatic connection.......................................................................................................................................25

6. BASIC SETTINGS............................................................................................................................................................266.1. Switching on the machine.........................................................................................................................................266.2. Adjusting the working pressure................................................................................................................................276.3. Adjust the temperature of the melting plate..............................................................................................................286.4. Adjusting the safety temperature limitter..................................................................................................................286.5. Heat up time..............................................................................................................................................................286.6. Setting the level controls...........................................................................................................................................29

7. STANDARD OPERATION..............................................................................................................................................307.1. Filling in glue............................................................................................................................................................30

7.1.1. Filling in glue....................................................................................................................................................307.1.2. Checking the granulate level (Option).............................................................................................................317.1.3. Filling in glue automatically.............................................................................................................................31

7.2. Switching the machine operational...........................................................................................................................327.3. Switch off the machine..............................................................................................................................................327.4. Changing the glue.....................................................................................................................................................33

8. SERVICE...........................................................................................................................................................................358.1. Check safety components (daily)..............................................................................................................................358.2. Empty the water separator.........................................................................................................................................358.3. Checking the safety temperature limitter..................................................................................................................35

9. MAINTENANCE..............................................................................................................................................................379.1. Trouble shooting.......................................................................................................................................................379.2. Changing the melting plate gasket............................................................................................................................399.3. Resetting the safety temperature limitter...................................................................................................................42

10. DISMANTLING / TRANSPORTING THE MACHINE................................................................................................4310.1. Important information regarding relocation of the machine...................................................................................4310.2. Dismantling.............................................................................................................................................................4310.3. Transport.................................................................................................................................................................44

11. ANNEX............................................................................................................................................................................4511.1. Pneumatic diagram..................................................................................................................................................4511.2. Technical data.........................................................................................................................................................4611.3. Tools, accessories....................................................................................................................................................4611.4. CE - Conformity Declaration / EEC - Manufacturer Declaration..........................................................................4711.5. Order form for spare and working parts..................................................................................................................49

VS 240 page 7

11.6. Notes........................................................................................................................................................................5012. BRIEF INSTRUCTIONS................................................................................................................................................51

12.1. Operating elements..................................................................................................................................................5212.2. Start working...........................................................................................................................................................5312.3. Stop working...........................................................................................................................................................53

13. Divergent or additional equipments.................................................................................................................................5514. BRIEF INSTRUCTIONS ( additional )...........................................................................................................................57

14.1. Operating elements..................................................................................................................................................5814.2. Start working...........................................................................................................................................................5914.3. Stop working...........................................................................................................................................................59

page 8 VS 240

VS 240 page 9

1. Instructions for the manual

1. Instructions for the manual

1.1. Warnings and symbolsIn the manual, the following designations or signs are used for particularly important data:

Note Particular data with regard to the efficient utilisation of the machine

Attention Particular data or rules and prohibitions for damage prevention

Danger Data or rules and prohibitions for the prevention of personal injury orextensive property damage.

1.2. Target groups of the individual areas

STOP!This work may only be executed by a trained electrician or

our customer service fitters!

STOP!This work may only be executed by a trained mechanic or our

customer service fitters!

1.3. Safekeeping of the operating manual / brief instructionsThe operating manual as well as the brief instructions must always be keptaccessible at the operating site of the machine.

page 10 VS 240

2. SAFETY INSTRUCTIONS


2.1.Principle, intended use The machine is designed exclusively for Melting of granulated, pourable, not reaktive hotmelt glues.

Using the machine for purposes other than those mentioned above is considered contrary to its designated use. Themanufacturer cannot be held liable for any damage resulting from such use. The risk of such misuse lies entirely withthe user.

Operating the machine within the limits of its designated use also involves observing the instructions set out inoperating manual and complying with the inspection and maintenance directives.

Unhealthy fumes may be released when processing adhesives and hotmelt glues. Obtain safety data sheet or otherinformation from the adhesive manufacturer. If necessary, install a suitable extraction system.

In any case, follow the safety data sheet of the glue manufacturer. Wear suitable protective clothing during work, maintenance and cleaning. Do not render the safety devices ineffective. Never fill in flammable or explosive material. Don’t operate the machine in the vicinity of flammable or explosive material.

Undertake the connection and installation only in accordance with the installation instructions. The electrical and pneumatic connection conditions must coincide with the data on the rating plate. The electrical safety of the equipment is only guaranteed when the grounding system of the house installation is

installed according to regulations.

The machine has been built in accordance with state-of-the-art standards and the recognised safety rules.Nevertheless, its use may constitute a risk to life and limb of the user or of third parties, or cause damage to themachine and to other material property.

The machine must only be used in technically perfect condition in accordance with its designated use and theinstructions set out in the operating manual, and only by safety-conscious persons who are fully aware of the risksinvolved in operating the machine. Any functional disorders, especially those affecting the safety of the machine,should therefore be rectified immediately.

Do not operate the damaged machine, in case of doubt contact the technical service department.

Do not undertake any constructional modifications without clearing it with the service department.

In order to avoid fire danger and the danger of an electric blow, neither expose the machine rain or moisture. Do not wet the machine during cleaning. Do not cover or close ventilation and extraction openings.

Do not misuse the machine as a stepping board or support. Observe the maintenance intervals.

Only use original parts.

Provide sufficient lighting at the workplace.

VS 240 page 11


2.2. Organisational measures Always keep the operating manual well accessible at the machine. Personnel entrusted with work on the machine must have read the operating instructions and in particular the chapter

on safety before beginning work. Reading the instructions after work has begun is too late. This applies especially topersons working only occasionally on the machine, e.g. during setting up or maintenance.

In addition to the operating instructions, observe and instruct the user in all other generally applicable legal and othermandatory regulations relevant to accident prevention and environmental protection!

These duties may also include handling of hazardous materials or the provision / wearing of personal protectiveequipment.

For reasons of security, long hair must be tied back or otherwise secured, garmets must be close-fit-ting an nojewellery - such as rings - may be worn. Injury may result from being caught up in the machinery or from ringscatching on moving parts.

Use protective equipment wherever required by the circumstances or by law!

Observe all safety instructions and warnings attached to the machine! See to it that safety instructions and warnings attached to the machine are always complete and perfectly legible!

In the event of safety-relevant modifications or changes in the behaviour of the machine during operation, stop themachine immediately and report the malfunction to the competent authority/person!

Never make any modifications, additions or conversions which might affect safety without the supplier’s approval.This also applies to the installation and adjustment of safety devices and valves as well as to welding work on load-bearing elements.

Spare parts must comply with the technical requirements specified by the manufacturer. Spare parts from originalequipment manufacturers can be relied to do so.

Adhere to prescribed intervals or those specified in the operating instructions for routine checks and inspections!

The personnel must be familiar with the location and operation of fire extinguishers!

2.3. Personnel selection and qualification Any work on and with the machine must be executed by reliable personnel only. Statutory minimum age limits must be observed! Employ only trained or instructed staff and set out clearly the individual responsibilities of the personnel for

operation, set-up, maintenance and repair!

Make sure that only authorised personnel works on or with the machine! Work on the electrical system or equipment may only be carried out by a skilled electrician and in accordance with the

applicable electrical engineering rules.

2.4. Safety instructions - standard operation Take the necessary precautions to ensure that the machine is used only when in a safe reliable state! Operate the machine only if all protective and safety devices, emergency shut-off equipment, sound-proofing elements

and exhausters, are in place and fully functional! In the event of a malfunction, stop the machine/system immediately and secure! Have malfunctions corrected

immediately.

Prior to switching on the machine, ensure that no-one can be harmed by the starting machine!

When using different products, ensure chemical compatibility! Observe the technical data sheets of the adhesivemanufacturer.

Never fill in flammable or explosive material, or operate the machine in their vicinity. Attention for hot surfaces of aplied glue or the hot melting tank walls during cleaning the machine

page 12 VS 240


2.5. Safety instructions - maintenance Always disconnect the machine from the mains in the event of a malfunction, during maintenance work and during

cleaning. For this purpose, pull the power plug. Pull on the power plug not on the connection cable. If the machine is completely shut down for maintenance and repair work, it must be secured against inadvertent

starting by:- locking the principal control elements and removing the ignition key and/or- attaching a warning sign to the main switch.

Wear suitable protective clothing during work, maintenance and cleaning.

In Observe the adjusting, maintenance and inspection activities and intervals set out in the operating instructions,including information on the replacement of parts and equipment. These activities may be executed by skilledpersonnel only.

To avoid the risk of accidents, individual parts and large assemblies being moved for replacement purposes should becarefully attached to lifting tackle and secured. Use only suitable and technically perfect lifting gear and suspensionsystems with adequate lifting capacity. Never work or stand under suspended loads!

For carrying out overhead assembly works always use specially designed or otherwise safety-oriented ladders andworking platforms. Never use machine parts as a climbing aid. Wear a safety harness when carrying out maintenancework at greater heights!

Clean the machine, especially connections and threaded unions, of any traces of oil, fuel or preservatives beforecarrying out maintenance/repair. Never use aggressive detergents. Use lint-free cleaning rags!

Any safety devices removed for set-up, maintenance or repair purposes must be refitted and checked immediatelyupon completion of the maintenance and repair work.

Always tighten any screwed connections that have been loosened during maintenance and repair!

Ensure that all consumables and replaced parts are disposed of safely and with minimum environmental impact!

2.6. Reference to particular hazards

2.6.1. Electrical energy Use only original fuses with the specified current rating. Switch off the machine immediately if trouble occurs in the

electrical system.

Work on the electrical system or equipment may only be carried out by a skilled electrician and in accordance with theapplicable electrical engineering rules.

If provided for in the regulations, the power supply to parts of machines and plants, on which inspection, maintenanceand repair work is to be carried out must be cut off. Before starting any work, check the de-energized parts for thepresence of power and ground or short-circuit them in addition to insulating adjacent live parts and elements!

The electrical equipment of machines is to be inspected and checked at regular intervals. Defects such as looseconnections or scorched cables must be rectified immediately.

Necessary work on live parts and elements must be carried out only in the presence of a second person who cut off thepower supply in case of danger by actuating the emergency shut-off or main power switch. Secure the working areawith a red-and -white safety chain and a warning sign. Use insulated tools only!

2.7. Additional information

When handling oil, grease and other chemical substances, observe the product-related safety regulations!

VS 240 page 13

3. Getting to know the machine / spare parts


3.1. Operating elements

page 14 VS 240

1

54

2

3

9

7

8

11

12

13

6

10


Pos. Order number Description Function

1. 975240 - 8040 Funnel (Option) to fill in the hotmelt granulate2. 975240 - 3615 Temperature controller For controlling the melting plate temperature3. 975240 - 4451 Control lamp red „temperature is too high“4. 975240 - 4452 Control lamp green

(Option)5. 975240 - 4220 main switch The main switch interrupts the power supply6. 975240 - 6532 pressure reducer For adjusting the cylinder pressure, the pressure is set to

7 bar by the manufacturer7. 975240 - 6545 Manometer Indicates the cylinder pressure8. 975240 - 6535 Water reservoir with

drain plugto drain of the water in the water emiter

9. 975240 - 4690 Granulate sensor(Option)

Checks the granulate level in the premelter

10. 975240 - 8030 Flap for granulate outlet to drain of the hotmelt granulate11. 975240 - 3025 Outlet the collected hotmelt escapes here out of the melting

plate12. 975240 - 3005 Melting plate

(complete)Melts the hotmelt granulate

13. 975240 - 8070 window to check the level of the hotmelt granulate in thepremelter

VS 240 page 15


3.2. Further elements

page 16 VS 240

4140

42

5150

52

53

6160

62

64

656663

20

21

22



20. 975240 - 4630 Roller limit switch top If the pressure plate arrieves the upper position themagnetic valve is switched over

21. 975240 - 6615 Magnetventil 5/2 Wege Magnetic valve 5/2 for controling the cylinder22. 975240 - 4630 Roller limit switch

belowIf the pressure plate arrieves the lower position themagnetic valve is switched over

40. 975240 - 3005 Melting plate (complete)41. 975240 - 1915 Melting plate gasket Seals between melting plate and housing of the premelter42. 975240 - 3825 Heating element 1250 W

50. 975240 - Heating relay51. 975240 - Control relay52. 975240 - Automatic cut out53. 975240 - 3625 safety temperature

limiterIf the melting plate is too hot, the heating ios switchedoff

60. 975240 - 4030 Teflon probe 08/17 For controlling the glue level in the application machine61. 975240 - 4060 Clamp ring Depth stroke for theflon probe62. 975240 - 4065 spring Balances the tension load of the cooling down glue63. 975240 - 4055 holder For the teflon probe64. 975240 - 40xx Teflon probe For controlling the glue level in the application machine65. 975240 - 4000 Signal amplifier

CSV 55locates the glue level in the melting chamber of theapplication machine and controls the premelter

66. Label Type number of the teflon probe,If you order a teflon probe please inform us about thetype number.

VS 240 page 17


page 18 VS 240

71

72

70

90 91


Pos. Bestell-Nummer Beschreibung Funktion

70. 975240 - 8610 Warning sign Warning sign „Main switch off ...“71. 975240 - 8605 Warning sign

„hot surface“Attention! Hot surface!

72. 975240 - 8615 Warning sign Warning sign „Attention ...“

90. 975240 - 3039 Enlarged outlet (Option) Enlarged outlet with additional heating element91. 975240 - 3040 Enlarged outlet (Option) Enlarged outlet with additional heating element and

separate temperature control

VS 240 page 19


3.3. Safety measuresMain switch with emergency stop function.

Safety temperature limiter prevents the overheat of the meltingplate in case of a failure of the temperature controller.

Automatic cut outs.

Protection lattice for preventing to get in with a hand, for examplein the draining of the glue granulate.

3.4. Melting capacityHotmelt glues have a strongly different melting behaviour.

Therefore the melting capacity is dependent on the respective type ofhotmelt glue.Also the melting plate temperature and pressure of the pressure cylinderaffects the melting capacity.

We melted a lot of glue types and register the results in a melting capacitylist.

page 20 VS 240

4. MACHINE INSTALLATION


4.1. Important referencesInstall the machine on a level, solid ground.

Operation is only permitted at temperatures of 10-40 °C and a relative airhumidity of max. 50 %

A work and maintenance area of 1 metre must be provided around themachine

For a sufficient stability of all components has to be provided.

Ensure adequate lighting in the operating area.

4.2. Mount the glue level probe

Protect the complete melting tank, so that no chips may get into in themelting tank during mounting.

The probe has to be so installed that it has at least 15 mm space betweenall walls.

It may get into only as little as possible air in the melting tank.

Therefore the lid must be adapted as exactly as possible around probeholder and outlet.

VS 240 page 21


4.3. Fastening the premelter

For this work, two engineers are necessary.

Mount the premelter with the mounting sheet metal on the machine.

Take care for the stability of the application machine.

The premelter is suspended at the ring nut.

Use only flawless load suspension devices corresponding to the weight ofthe machine.Weight of the machine: 120 kg

Hold the premelter so that it can’t strike against something or the lid fallsdown, during the time of lifting or transporting.

Lift up the premelter.

The mounting sheet must be screwed in an other position if you mount thepremelter on the application machine.

A second engineer must hold the mounting sheet.Loosen and unscrew both stop screws with a 6 mm allan key.

page 22 VS 240


Position the mounting metal sheet in the rear position and fasten it withscrews again.

Mount the premelter with four M8 screws on the application machine.

The outlet must be located over the melting tank. If use one of our new application machines the corresponding holes areprepared.

As an accessories, also a swivel holder is available.

The swivel holder simplifies maintenance working and changing thehotmelt granulate.

VS 240 page 23

5. STARTING UP THE MACHINE


5.1. Machine installationThe electric and pneumatic connection conditions must agree with the statements on the type sign.

The electrical safety of the equipment is only guaranteed when the grounding system of the house installation isinstalled according to regulations.

5.1.1. Electrical connection

Connect the machine according to the type plate.Make the connection with five wires (CEE plug).A missing zero conductor would lead to a failure of the controls. Themachine would not be operational.

The circuit diagram is located in the switch box.

Fuse the supply with 32A.

page 24 VS 240


5.1.2. Pneumatic connection

Make the connection by using the red hose at the maintenance unit.

The compressed air may only be connected to compressed air ductworksequipped with a safety device against excess pressure.

The maximum operating pressure must not exceed 10 bar.The minimum operating pressure must be 2 bar.

VS 240 page 25

6. BASIC SETTINGS

6. BASIC SETTINGS

6.1. Switching on the machineThe premelter may be turned on only with pressure.

The minimal working pressure amounts to 2 bar. If there is no pressure, the hotmelt granulate becomes too warm and theglue sticks at the housing. The hotmelt granulate don’t swirls to the melting plate.

The premelter may only be operated with hotmelt granulate inside.

If the level of the hotmelt granulate reaches the lower window, newhotmelt granulate has to be filled in. Without hotmelt granulate, the melting plate is overheated.

Are both conditions fulfilled, switch the main switch on.

page 26 VS 240

6. BASIC SETTINGS

6.2. Adjusting the working pressureOn the manometer you can read the adjusted working pressure, it is set to7 bar by the manufacturer.

The working pressure may only be adjusted as high as it is necessary forthe respective glue.

Unlock the adjust button through pulling it up.

The desired pressure can be adjusted through turning the adjust button.

An unintentional adjusting of the adjusted pressure can be prevented bypushing down the adjust button.

VS 240 page 27

6. BASIC SETTINGS

6.3. Adjust the temperature of the melting plateThe heating of the machine is adjusted on the temperature controller.

You can read the right working temperature at the glue in the data sheet ofthe glue manufacturer.The temperature of the glue at the outlet is lower than the temperature ofthe melting plate, because of this the thermostate must adjusted approx.10-15°C higher.

The temperature probe is in a drilling in the melting plate.

To prevent an unintentionally adjusting of the temperature controller, thescale can be fixed with the safety screw.

6.4. Adjusting the safety temperature limitter

The premelter is equipped with a safety temperature limiter.

It prevents the overheat of the melting plate in case of a failure of thetemperature controller. Adjust the temperature with a screwdriver. The“protection temperature” maybe max. 80°C above the adjusted meltingplate temperature.

6.5. Heat up timeThe heating up time of the premelter amounts to approx. 2-3 minutes.

Always only the necessary quantity of glue becomes melted. So that the glue has a very short thermic load. The quality of the glue is always be similar.

page 28 VS 240

6. BASIC SETTINGS

6.6. Setting the level controlsThis setting must be reset when a new probe is used.

If no teflon probe is connected, the heating don’t switch on!

Hold the probe in the air.

Turn the left potentiometer to the left (on the CSV25 or CSV55), until thedisplay changes from red to green or possibly up to the left-hand stop ofthe potentiometer.

Mark the setting.

Hold the probe firmly in the bottom (approx. 5 - 6 cm) area.

Turn the left potentiometer to the right (on the CSV25 or CSV55), untilthe display changes from green to red or possibly up to the right-handstop of the potentiometer. Mark the setting.

Set the left potentiometer to the centre position of both marks, the probe isnow set.

The right potentiometer serves to set a delay time.

The agitating movement of the agitator roller causes waves in the meltingtank. To prevent the switching amplifier from switching at everymovement, set the time to approx. 3-5 seconds.

VS 240 page 29

7. STANDARD OPERATION


7.1. Filling in glueBy using glue or hotmelt glues, steams that are harmful to health can become free. Look at security data sheet orother information of the glue manufacturer. If necessary install a suction plant.

Unconditionally follow security data sheets of the glue manufacturer.

7.1.1. Filling in glue

For filling in the hotmelt granulate, a stabil laader or working platformmust be used corresponding to rules for prevention of accidents.

No packing rests or foreign substances may get into into the premelter.

These would cover the melting plate and reduce the melting capacity.

Fill in only lapping hotmelt granulate.

Fill in no stick hotmelt granulate. Break up lumpy hotmelt granulate. If this is not possible, insert another hotmelt granulate.

Open the lid up to the stroke .

Pour the Granulat into the funnel.

The enter of foreign substances into the premelter must be prevented.Therefore the lid must always be closed carefully.

page 30 VS 240


Regularly control the fill height in the premelter.

The premelter may be operated only with hotmelt granulate inside. At the latest if the level of the hotmelt granulate reached the lowerwindow, new hotmelt granulate must be filled in. Without hotmelt granulate, it comes to overheating of the melting plate.

7.1.2. Checking the granulate level (Option)

The granulate level in the premelter is located by an granulate level probe.

The probe can be adjusted to the depending granulate, with a smallscrewdriver.

As soon as the granulate level is too low the lamp flashes.

At the latest if the level of the hotmelt granulate reached the lowerwindow, new hotmelt granulate must be filled in. Without hotmelt granulate, it comes to overheating of the melting plate.

7.1.3. Filling in glue automatically

The premelter must be equipped to this with the granulate feedingsystem“Vacumat” or “Vacumat S” .

The image shows a Vacumat S.

Note the operating instructions of the granulate feeding system.

VS 240 page 31


7.2. Switching the machine operationalSwitch on the premelter with connected pressure.

The minimal working pressure amounts to 2 bar. If no pressure is connected, the hotmelt granulate becomes too hot andglue sticks at the wall of the premelter. The hotmelt granulate laps no longer.

The premelter may be operated only with hotmelt granulate inside.

At the latest if the level of the hotmelt granulate reached the lowerwindow, new hotmelt granulate must be filled in. Without hotmelt granulate, it comes to overheating of the melting plate.

Are both conditions fulfilled, switch on the main switch

The teflon probe controls the glue level in the application machine.

If the glue level in the application machine falls, the premelting process isautomatically initiated.

The control takes place via the signal amplifier.

7.3. Switch off the machineThe machine can be switched off at the main switch.

page 32 VS 240


7.4. Changing the glueIf you use a new glue type, the chemical compatibility of both glue typesmust be reviewed. Please compare the data sheets or inquire at the gluemanufacturer about the new hotmelt granulate. If the glue is not compatible, clean with a neutral glue or cleaner. Let theglue into a carton.

Use up the old glue type as far as possible.

Open the flap type seal only, if the main switch is switched off.

Switch off the main switch and secure it.

Place a clean carton under the granulate outlet (side after side).

The carton must be clean so that the Granulat can be used again.

Loosen the stop nut with an open-jawed spanner.

Hold the flap and turn off the nut.

VS 240 page 33


Let the granulate lap into the carton.

Get the granulate out with a long screw driver as well as possible out ofthe pressure chamber.

Fasten with screws the flap type seal again.

Tighten the nut again with an open-jawed spanner.

If the glue level in the melting tank of the application machine is to high,the premelter does not begin with the melting.

Therefore pull out the teflon probe out of the holder, clean it and held itfree into the air.

Fill in the new glue type and melt it into a box as long as the the oldhotmelt is melted completely out of the premelter.

page 34 VS 240

8. SERVICE

8. SERVICE

8.1. Check safety components (daily)Check if the warning symbols on the

machine are complete and intact

If necessary replace.

8.2. Empty the water separatorThe water separator must controlled regularly.

If water is located in the water glass, drain it by pulling down the valve.

8.3. Checking the safety temperature limitter

The safety temperature limitter must be checked annually.

To do this heat up the premelter approx. to 100 °C.

Set the safety temperature limitter with a screw driver on approx. 50°C.

In case of an exceeding of the adjusted safety temperature, the safetythermostat switches off the heater and the signal lamp “temperature tohot” gleams.

VS 240 page 35

8. SERVICE

Adjust subsequently again the protection temperature.

Adjust the protection temperature max. 80°C over the melting platetemperature.After that reset the safety temperature limitter through pressing of the redbutton.

page 36 VS 240

9. MAINTENANCE

9. MAINTENANCE

9.1. Trouble shootingProblem Possible causes Elimination

Premelter doesn’t work No power supply Check the transmission lead and plug.

Main switch is not on. Switch on the main switch.

Teflon probe is not connected Connect teflon probe to the signalamplifier.

Cable of the teflon probe is damaged Connect a new teflon probe

No compressed air supply Check the transmission lead

Check the pressure reducer

Temperature of the melting plate is toohigh and the safety temperaturelimitter has switched

1. Let the e melting plate cool down2. Check the thermostat. 3. Reset safety temperature limitter

(red button)

Automatic cut-out is switched off Switch on the automatic cut-out. If itdoes not remain switched on, find andeliminate possible error cause

Fuse in the supply line is defective Replace fuse. If it does not remainintact, find and eliminate possible errorcause

Not enough melting capacity The temperature is adjusted to low Increase the temperature as high as it isallowed from the glue manufacturer

The pressure is too low. Enlarge the pressure up too 10 bar.

An heating element is defect Check the heating elements andreplace them if it is necessary

Foreign substance on the melting plate Clean the melting plate. Also see chapter:Changing the melting plate gasket

VS 240 page 37

9. MAINTENANCE

Problem Possible causes Elimination

The granulate laps not The temperature in the shaft is toohigh

See: “High melting of the glue”

The granulate is too lumpy Destroy the lumps

The granulate is not pourable enough Use another granulate

Use a granulate loosener

High melting of the glue The temperature is too high Lower the temperature

Use a cooling jacket.

page 38 VS 240

9. MAINTENANCE

9.2. Changing the melting plate gasketConsume first the glue or empty the premelter

Switch off the main switch and secure it.

Let the temperature cool down to approx. 80 - 90°C.

Disconnect the teflon probe from the signal amplifier.

Loosen the holder of the machine.



Wear gloves.

VS 240 page 39

9. MAINTENANCE

Unsrew the four gasket squares.

Unscrew the protection sheet metal of the heating elements.

Loosen the eight nuts and remove the melting plate away by pushing itdown.

Remove the old gasket.

Clean the melting plate and the underside of the housing thoroughly witha prick iron (do not damage the area).

Clean the melting ribs thoroughly.

Place the teflon foil on the border of the melting plate.

page 40 VS 240

9. MAINTENANCE

Put the gasket on the melting plate.

Screw the melting plate again under the housing. By doing this, tightenfirst the opposite screws equally with approx. 5 Nm. Subsequently,tighten them once more with approx. 10 Nm.

Push the gasket squares against the gasket and tighten the screws.

Press the heating elements up to the stroke into the bore holes and fastenthem with screws fix them with the protection sheet metal.

The protection sheet metal must grasp behind the metal bush!

Heat up the machine.

After about 5 minutes tighten the screws again with approx. 10 Nm.

The gasket can decrease a little bit after several time. So check the screwsafter 1-2 month and retighten them with approx. 10 Nm.

Mount the premelter with four M8 screws on the application machine.

VS 240 page 41

9. MAINTENANCE

Connect the teflon probe from the signal amplifier.

9.3. Resetting the safety temperature limitter

The premelter contains a safety temperature limitter (in the switch box).

It prevents the overheating of the melting plate in case of a failure of thethermostat. The “protection temperature” may lie max. 80°C above theadjusted melting plate temperature.

In case of an exceeding of the adjusted safety temperature, the safetythermostat switches off the heater and the signal lamp “temperature tohot” beams.

Repair the defect and let the melting plate cool down. Than the safetytemperature limitter is reseted by pushing the red button..

page 42 VS 240

10. DISMANTLING / TRANSPORTING THE MACHINE


10.1. Important information regarding relocation of the machineOnly use hoists and load suspension devices with sufficient load carrying capacity for loading work.

Only lift the machines properly in accordance with the operating manual (attachment points for load suspensiondevices, etc.) using a hoist.

Disconnect the machine or system from any external energy supply even for minor reallocations. Reconnect themachine properly to the mains prior to starting up.

Start up the machine only in accordance with the operating manually.

10.2. DismantlingSwitch off the main switch.

Disconnect the machine from the power supply (pull the CEE plug).

Disconnect the machine from the compressed air supply.

Let the machine cool down.

Disconnect the teflon probe from the signal amplifier.

VS 240 page 43


Loosen the holder of the machine.



Hold the premelter so that it can’t strike against something or the lid fallsdown, during the time of lifting or transporting.

The mounting sheet must be screwed in the front position for the stabilityof the machine.

10.3. TransportFasten the machine professional on an euro pallet.

For ”Ex factory transports,” fasten the machine with the mounting sheetmetal in a stable crate using screws.

page 44 VS 240

11. ANNEX

11. ANNEX

11.1. Pneumatic diagram

0.1. Compressed air supply 1.1. Pressure cylinder2.1. Restrict valve3.1. 5/2 ways magnetic valve4.1. Manometer pressure4.2. Pressure reducer

VS 240 page 45

0.1.

4.1.

4.2.

3.1.

1.1.

2.1.

11. ANNEX

11.2. Technical dataIntended machine use: Melting of granulated, pourable, not reaktive hotmelt gluesMachine type: VS 240 Year of manufacture: ........................ Operating voltage: 400 VFrequency: 50 Hz Control voltage with transformer: 230 VRated machine current: 13 A Rated current of the fuse in the

supply line:32A

Compressed air connection: max. 10bar Continuous sound pressure level: < 70 dB (A)

Size approx.:a 860 mm

b 950 mm

c 580 mm

Weight approx. 120 kg

11.3. Tools, accessories

quantity

Description O.K.

1 Open jaw spanner 10 – 13, 13 - 17

1 Allan wrench 4 ; 6

1 Key for switch box

1 Brief instructions

1 Circuit diagram (in the switch box)

page 46 VS 240

11. ANNEX

11.4. CE - Conformity Declaration / EEC - Manufacturer Declaration

– Conformity Declaration EEC - Manufacturer Declaration

based on the CE machine guideline 89/392/EWG, Annex II A Marked is valid

We H&H Maschinenbau GmbH, herewith declare that the machine described in the following meets the relevant,principle safety and health requirements of the CE machine guideline with regard to its design and construction as well as

in the version brought on the market by us.This declaration becomes invalid in the event of changes to the machine which are not agreed to or authorised by

us.

Machine designation : - Premelter for granulated hotmelt glue -

Machine type : VS 240

Left-hand machine / Right-hand machine

Machine No.: ..........................

RelevantCE guidelines: CE machine guideline (89/392/EEC) succeeded by 91/368/EEC

CE low voltage guideline (73/23/EEC)CE guideline for electromagnetic compatibility (89/336/EEC) succeeded

by 93/31/EWG

Appliedharmonisedstandards, particularly : EN60204-1 Electrical machine equipment

EN 292-1 Machine safetyEN 292-2 Machine safetyEN 294 Safety distances to prevent access to hazardous areas withupper limbs.EN 414 Machine safety

Appliednational standards andtechnical specifications,particularly : ..................................................................................................................

..................................................................................................................

Date / manufacturer’s signature: 10. Juni 2002 /

Data regarding the signer : Michael Hausdorf, technical editor

Final inspection, tools complete (mark with in the list of the other side),

filled out ⌧: 3x machine no. ; Year CE/EEC; Typ (130 / 150) at: .................. by: ...........................

VS 240 page 47

11. ANNEX

page 48 VS 240

11. ANNEX

11.6. Notes

page 50 VS 240

12. BRIEF INSTRUCTIONS


VS 240





GB VS 240 page 51




1. 975240 - 8040 Funnel (Option) to fill in the hotmelt granulate

2. 975240 - 3615 Temperature controller For controlling the melting plate temperature

3. 975240 - 4451 Control lamp red „temperature is too high“

4. 975240 - 4452 Control lamp green(Option)

5. 975240 - 4220 main switch The main switch interrupts the power supply

6. 975240 - 6532 pressure reducer For adjusting the cylinder pressure, the pressure is set to 7 barby the manufacturer

7. 975240 - 6545 Manometer Indicates the cylinder pressure

8. 975240 - 6535 Water reservoir with drainplug

to drain of the water in the water emiter

9. 975240 - 4690 Granulate sensor (Option) Checks the granulate level in the premelter

10. 975240 - 8030 Flap for granulate outlet to drain of the hotmelt granulate

11. 975240 - 3025 Outlet the collected hotmelt escapes here out of the melting plate

12. 975240 - 3005 Melting plate(complete)

Melts the hotmelt granulate

13. 975240 - 8070 window to check the level of the hotmelt granulate in the premelter

page 52 VS 240

1

54

2

3

9

7

8

11

12

13

6

10


12.2. Start workingOpen the lid and fill in the granulate.

No packing rests or foreign substances may get into into the premelter.The premelter may only be operated with filled in glue.

Close the lid.

The enter of foreign substances into the premelter must be prevented.

Compressed air must be connected.

The minimum working pressure must be 2 bar.

Switch on the machine.

Only permits, if connected pressure is min. 2 bar and the premelter is filled withgranulate!

The temperature controller has to be adjusted corresponding to the statements of theglue manufacturer.

If the glue level in the application machine falls, the premelting process is automaticallyinitiated. The control takes place via the signal amplifier.

Regularly control the granulate level in the premelter. At the latest if the level of thehotmelt granulate reached the lower window, new hotmelt granulate must be filled in.

12.3. Stop workingSwitch off the machine.

VS 240 page 53


page 54 VS 240

13. Divergent or additional equipments


VS 240 page 55


page 56 VS 240

14. BRIEF INSTRUCTIONS ( additional )


VS 240





GB VS 240 page 57




1. 975240 - 8040 Funnel (Option) to fill in the hotmelt granulate

2. 975240 - 3615 Temperature controller For controlling the melting plate temperature

3. 975240 - 4451 Control lamp red „temperature is too high“

4. 975240 - 4452 Control lamp green(Option)

5. 975240 - 4220 main switch The main switch interrupts the power supply

6. 975240 - 6532 pressure reducer For adjusting the cylinder pressure, the pressure is set to 7 barby the manufacturer

7. 975240 - 6545 Manometer Indicates the cylinder pressure

8. 975240 - 6535 Water reservoir with drainplug

to drain of the water in the water emiter

9. 975240 - 4690 Granulate sensor (Option) Checks the granulate level in the premelter

10. 975240 - 8030 Flap for granulate outlet to drain of the hotmelt granulate

11. 975240 - 3025 Outlet the collected hotmelt escapes here out of the melting plate

12. 975240 - 3005 Melting plate(complete)

Melts the hotmelt granulate

13. 975240 - 8070 window to check the level of the hotmelt granulate in the premelter

page 58 VS 240

1

54

2

3

9

7

8

11

12

13

6

10


14.2. Start workingOpen the lid and fill in the granulate.

No packing rests or foreign substances may get into into the premelter.The premelter may only be operated with filled in glue.

Close the lid.

The enter of foreign substances into the premelter must be prevented.

Compressed air must be connected.

The minimum working pressure must be 2 bar.

Switch on the machine.

Only permits, if connected pressure is min. 2 bar and the premelter is filled withgranulate!

The temperature controller has to be adjusted corresponding to the statements of theglue manufacturer.

If the glue level in the application machine falls, the premelting process is automaticallyinitiated. The control takes place via the signal amplifier.

Regularly control the granulate level in the premelter. At the latest if the level of thehotmelt granulate reached the lower window, new hotmelt granulate must be filled in.

14.3. Stop workingSwitch off the machine.

VS 240 page 59

VS 240 GB 09.02.2005 -

Documents

collected hotmelt escapes

customer service fitters

load suspension devices

reaktive hotmelt glues

protection sheet metal

dismantling transporting

mounting sheet metal

control takes place