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Hand Extruder MEK-36,48,58 / MAK-36,48,58 

 

Page16/20 

Issue 12.2009/Rev. 02 

MUNSCH Kunststoff-Schweißtechnik GmbH 

 

 
 
                                                                                                                    

7  Malfunctions, Causes and Remedies  

7.1  Trouble-shooting  
The following table lists potential operating upsets of 
the hand extruder, possible causes and their 
remedies (fault diagnosis chart).   

 

Should malfunctions occur which are not covered 
here or which cannot be traced back to the cause 
stated, please contact MUNSCH Kunststoff-
Schweißtechnik GmbH. 

 
 

Malfunction 

 

Fault No.  

Drive motor does not start 

 

5, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 23 

Drive motor switches off 

 

5, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 23 

No welding rod feed 

 

1, 16, 17, 20 

No extrudate conveyed out of welding shoe 

 

1, 16 

Extrudate output decreases during operation  

 

1, 14, 16 

No air supply 

 

6, 7, 13 

Integrated air supply without function 

 

5, 22 

No hot air 

 

2, 3, 4, 5, 6, 18, 22 

Hot air temperature below setpoint temperature   

 

2, 3, 4, 8, 10, 18, 22, 14 

Melt temperature below setpoint temperature  

 

2, 3, 9, 11, 14 

Extruder does not heat up  

 

2, 3, 12, 22 

Temperature above preset range 

 

2, 3, 18, 19 

Controller fault signal: E 

 

Controller fault signal: OEAIR 

 

2, 13, 22 

Controller signal: OFF 

 

9, 10, 11, 12 

Control fluctuates 

 

3, 13,19,12 

 
 
7.2  Fault diagnosis 

Fault 

No. 

Possible causes 

Remedies 

Smaller or too small a welding rod diameter  

Use larger welding rod diameter, if necessary  

Temperature sensor defective  

1)

  

Temperature controller defective  

1)

 

Air rate too high  

Reduce air rate to specified level

3)

 

Cable connections defective  

Check cable connections

1)

  

External air supply not connected

3)

  

Connect external air supply 

External air supply without function

3)

  

Switch on external air supply 

 

Check the external air supply system for 
malfunctions using the separate manual, or have it 
checked.  

Hot air temperature below start interlock 
temperature  

Allow hand extruder to heat up 
Air rate too high 

 reduce air rate 

3)

  

 

1)  Consult MUNSCH Kunststoff-Schweißtechnik GmbH 
2)  Only for MAK 
3)  Only for MEK 

Содержание MAK-36

Страница 1: ..._________ MEK 48 MAK 48 Article No ______________ MEK 58 MAK 58 These operating instructions contain important information to be observed for hand extruder operation and maintenance It is therefore im...

Страница 2: ...CTION AND MOUNTING 7 2 7 UNAUTHORIZED MODIFICATIONS AND SPARE PARTS 7 3 TRANSPORT AND STORAGE 8 3 1 TRANSPORT 8 3 2 STORAGE 8 3 3 RETURN TO MUNSCH 8 4 PRODUCT DESCRIPTION 8 4 1 APPLICATION RANGE 8 4 2...

Страница 3: ...ing harmonised standards or parts of these standards were applied DIN EN ISO 12100 1 2004 DIN EN 13732 1 2008 DIN EN ISO 12100 2 2004 In addition the hand extruders are in accordance with the followin...

Страница 4: ...eover failure to observe the safety instructions may lead to the forfeiture of any damages Non observance of the safety instructions may in particular involve the following risks failure of important...

Страница 5: ...age of not less than 230 V 1 must be available at the connector of the hand extruder When using an extension cable make sure to observe the minimum conductor cross section Use extension cables with pr...

Страница 6: ...t air supply risk of hand extruder damage When using an external air source make sure that the air supply line is adequately dimensioned CAUTION The supply air must be clean dry and free from oil and...

Страница 7: ...nspection and mounting activities are performed by authorized and qualified personnel who are thoroughly familiar with the operating instructions As a rule the hand extruder must be shut off and the c...

Страница 8: ...lication range of the hand extruder is defined by the data on the type tag and the service limits indicated in these operating instructions CAUTION Operation of the hand extruder outside the service l...

Страница 9: ...fore starting shutting off the hand extruder make sure to carefully read the instructions under section Safety Only trained and qualified personnel may be assigned to the operation of the hand extrude...

Страница 10: ...material over the entire joint width at as low a hot air temperature as possible For larger weld seam widths a wider preheat nozzle is available as an accessory 5 3 Starting the hand extruder Observe...

Страница 11: ...the welding rod 5 4 2 Replacement and aging of welding rod If the welding rod is to be replaced make sure that any remaining rod in the hand extruder is completely removed For this purpose operate th...

Страница 12: ...on once to switch off the heating circuits Pull mains connector Maintain the air supply of the hand extruder until the unit has completely cooled down Never use water or another coolant to accelerate...

Страница 13: ...MEK 36 48 58 MAK 36 48 58 Issue 12 2009 Rev 02 Page 13 20...

Страница 14: ...er working practices must be observed Any working practices posing a safety risk are prohibited Activities other than those described in this section may only be performed at the Manufacturer s worksh...

Страница 15: ...MEK 36 48 58 MAK 36 48 58 Issue 12 2009 Rev 02 Page 15 20...

Страница 16: ...mperature 2 3 4 8 10 18 22 14 Melt temperature below setpoint temperature 2 3 9 11 14 Extruder does not heat up 2 3 12 22 Temperature above preset range 2 3 18 19 Controller fault signal E 2 Controlle...

Страница 17: ...Rated voltage permissible voltage Check mains voltage Rated voltage permissible voltage Check mains voltage 1 15 Extension cable heats up Unroll cable reel Check cable cross section see also section...

Страница 18: ...0 mm and film sheeting welds 48 Wall thicknesses 10 35 mm and film sheeting welds 58 Wall thicknesses 12 40 mm and film sheeting welds Weight 36 48 9 kg 58 10 kg 36 48 9 2 kg 58 10 2 kg Drive 230 V AC...

Страница 19: ...t to be free from defects in materials and workmanship from the date of its first acquisition Should deficiencies resulting from defects in materials or workmanship be identified during the warranty p...

Страница 20: ...efect the Purchaser may demand annulment cancellation of the contract or a price reduction reduction of compensation in lieu of remedial work In such a case the Purchaser shall not be entitled to any...

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