EBA 721 LT Operating Instructions Manual Download Page 21

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Malfunction:

Machine is switched on but cut cannot be
performed.
Cause:
Safety clutch is activated.
Remedy:
Contact your dealer.

Malfunction:

The last sheet of paper is not completely cut.
Remedy:
Adjust the cutting depth (see Cutting stick) or
replace or turn the cutting stick.

Malfunction:

Poor cutting quality or blade jams.
Remedy:
Blade change or adjustment is necessary.

Malfunction:

No clamp pressure

Cause:
Hydraulic oil needs refilling
Remedy:
Contact your dealer.

If you have further questions please contact your
dealer or directly on the internet

service@krug-

priester.com

Subject to alteration wihout notice

Summary of Contents for 721 LT

Page 1: ... 1 EBA 721 LT Operating Instructions ...

Page 2: ...the cutting blade Children must not operate the machine Never leave the blade unattended Do not extract or transport the blade without protection Danger Risk of injury Do not reach beneath the blade Do not cut hard materials or materials which may splinter ...

Page 3: ...p or interruption 10 3 3 Cutting activation 10 3 4 False clamp plate 11 3 5 Programming 12 Program entry 12 Eject function 12 Select Program 13 Insert a step 13 Delete a step 13 Delete a program 13 Example of a program 13 How the example works 13 Working with programs 14 Exiting program mode 14 4 Maintenance 15 4 1 Cutting stick 15 Setting the cutting depth 15 Turning or replacing the cutting stic...

Page 4: ...d by a guard The casing is connected screwed to the machine Operation by one person at a time only The cutting action which is dangerous to the operator is protected by a two handed control system 22 and safety beam guard 1 1 2 Application The machine is designed for cutting stacks of paper to a specified size Setting the measurement is done via buttons or hand wheel 17 Cutting cycle is activated ...

Page 5: ...t be located outside Do not use in the vicinity of inflammable liquids or gases Do not use in humid environments Protect mains cable against heat oil and sharp edges 2 1 Preparing for Installation The machine is delivered ready for operation As an option side tables left and right are available These should be mounted so that the surfaces are level with the main table Danger The machine must not b...

Page 6: ...quency 50Hz 60Hz Machine does not function Switch 5 ON Key switch 4 ON Check on site fuse Press the green overload switch 36 Press the black overload switch 37 If the machine still does not function then the rotation must be reversed The machine is wired according to the IEC standards We recommend that alterations to the rotary direction be made in the socket It is also possible to make alteration...

Page 7: ...mounted Cutting activation The cutting mechanism starts when the two handed control system 1 is pressed exactly at the same time Safety light beam Do not reach into the cutting area 38 when in motion It is recommended to keep a written copy of the examination results Cutting sequence 1 with automatic clamping Airtable 9 The airtable allows paper to be easily positioned Setting clamping pressure 7 ...

Page 8: ...ine adjustment 18 Backgauge forwards fast 19 Clamp pressure 20 Switch over cm inch 21 Keypad 3 2 Start up Turn the main switch 5 to position I Insert the key 4 for the control panel and turn to the right Press key Backgauge 3 will automatically search for the reference point The measurement appears on the display Display in cm or inch Press Display changes from cm and inch cm 4 digit display inch ...

Page 9: ... be cut is under the light beam The more the rotary control is turned the faster the backgauge will move For quick motion use key 18 Release the cut Optical cutting line indicator An optical cutting line indicator is used for exact cutting The light beam indicates where the cut will be made Mechanical cutting line indicator The clamp 24 can be used as cutting line indicator for exact cutting Pre c...

Page 10: ...e Press M key LED M 12 switch OFF The actual size is shown 3 3 Cutting activation Danger Do not reach into the cutting area when the blade is in motion A cut can only be activated when the specified size is approached The LED S on the display must be deleted and the safety area 38 free Press both buttons of the safety two handed control system 1 simultaneously and keep them pressed until the paper...

Page 11: ...ent pressure marks on sensitive material To dismount Remove the clamp plate 39 by pulling it down Store the clamp plate in the provided holder 25 The remaining cut is 2 cm To mount The clamp plate 39 is inserted to the top into the clamp 24 The remaining cut is 9 cm ...

Page 12: ...nds to one dimension The indicated program step can be overwritten at any time These programs remain stored when the machine is off Should you change to another dimension unit all programmed measures are converted into the new unit cm and inch Program entry Press P the red S light will be on Enter desired program number 0 1 2 0 The number will be shown in the display 10 Press the button twice prev...

Page 13: ...p with key or Insert a step Choose a step number with key or Press key I Enter size Press key Delete a step Choose a step number with key or Press key D twice Delete a program Enter desired program number 0 1 1 6 Press key twice Example of a program P 0 8 program 08 1 9 step 1 on 19 0cm 1 7 step 2 on 17 0cm E eject P Exiting program mode How the example works P 0 8 start program 08 proceed to posi...

Page 14: ...king up block 6 to the backgauge Release the cut After every cut the backgauge advances to the next position The cutting mechanism is described under No 3 Operation Press key and to proceed to the desired program With the backgauge proceeds to position With the backgauge stops General The red S light is on specified size not achieved The red S is off specified size achieved key is pressed Backgaug...

Page 15: ...artment The carrying out of such a check has to be attested on the test certificate A corresponding test label has to be affixed on the back of the machine In Germany such a safety check is regulated and we recommend it for all other countries too 4 1 Cutting stick If the last sheet of paper is not completely cut the cutting depth must be adjusted Setting the cutting depth Lower the blade depth ad...

Page 16: ...ng bolt The cutting stick can be used eight times Place the paper onto the whole width of the cutting area Lower the blade by pressing both cut keys Keep one button pressed and turn off the main switch Lower the blade depth adjustment 27 until the paper is cut along the entire length Remove spanner Turn main switch to position I Cutting test If the last sheet of paper is not completey cut lower th...

Page 17: ...spanner Lower the blade by pressing both cut buttons Keep one button pressed and turn off the main switch The eccentrics 28 are now exposed and should be turned to position 0 The special wrench 40 found in the tool set Turn main switch to position I Wait until the blade is at ghe top Turn main switch to position O Remove the 2 blade screws 29 Put the blade changing tool 31 into place and fasten it...

Page 18: ... tools and position a sheet of paper along the entire cutting length Lower the blade by pressing both cut buttons Keep one button pressed and turn off the main switch Lower the blade depth adjustment 27 until the blade touches the paper The 3 eccentrics 28 should then be used to lower the blade until the paper is cut along the entire length of the blade The blade must remain parallel to the cuttin...

Page 19: ... Turn main switch off Disconnect from the mains Remove the front upper housing 43 taking care of the cable Check oil 34 If oil is below minimum contact your dealer Remove paper debris Lubricate all grease nipples Check the joint bolts 35 if they are worn Check connecting rod 33 if it is worn Reassemble the machine Type of grease Roller bearing grease all types ...

Page 20: ...ction after the machine has been moved to another position Cause Phase direction wrong Remedy See Installation and Power supply Malfunction Backgauge does not function Cause Motor is overloaded Remedy Press safety switch 37 Malfunction Cut cannot be activated a Cause Safety light beam is interrupted dirty Remedy Remove any items and clean the sender b Cause Backgauge does not go to the correct pos...

Page 21: ... cutting depth see Cutting stick or replace or turn the cutting stick Malfunction Poor cutting quality or blade jams Remedy Blade change or adjustment is necessary Malfunction No clamp pressure Cause Hydraulic oil needs refilling Remedy Contact your dealer If you have further questions please contact your dealer or directly on the internet service krug priester com Subject to alteration wihout not...

Page 22: ... technical specifications can be found on the technical specifications sticker on the machine Safety light beam Total reaction time of safety device 95 ms Resolution top 20 mm 30 mm Resolution front 40 mm Distance 238 mm 20 mm Distance 318 mm 30 mm Distance 460 mm 40 mm 7 Accessories Attention Only use accessories recommended by the manufacturer Not all of the accessories illustrated or described ...

Page 23: ...antes satisface las disposiciones pertinentes siguientes è conforme alle seguenti disposizioni pertinenti voldoet aan de eisen van de in het vervolg genoemde bepalingen está em conformidade com as disposições pertinentes a saber er i overensstemmelse med følgende bestemmelser EG98 37 EG73 23 EG89 336 Angewendete harmonisierte Normen insbesondere Applied harmonized standards in particular Normes ha...

Page 24: ... 24 EBA 721 LT EBA Krug Priester 72336 Balingen Germany www eba de B_721_2h PMD 09 2002 ...

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