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MEK-18 / MAK-18 

Issue 08.2008/Rev. 00 

Page 5/20 

 

 

2.3  Risks resulting from non-observance of the 

safety instructions 

Non-observance of the safety instructions may cause 
hazards to persons and the environment or damage 
to the hand extruder. Moreover, 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 hand extruder functions, 

  hazards to persons due to electrical and me-

chanical impacts including risk of burns, 

  hazards to the environment due to vapour-phase 

hazardous substances, 

  risk of fire. 

 
2.4  Safe working practices 
The safety instructions given in these operating in-
structions, the applicable national accident preven-
tion regulations and any existing in-company work 
instructions, operating and safety procedures issued 
by the Operator must be followed. 
 
2.5  Safety instructions for Operator / operating 

personnel  

  Before placing the hand extruder in service, 

check the mains voltage and frequency against 
the data indicated on the type tag. The allowable 
tolerances are ± 5 % for voltage and/or 

±

2 % for 

frequency. 

  According to VDE 0100 §55, the hand extruder 

must be operated via a residual current-operated 
circuit breaker or an isolating transformer. 

  CAUTION During hand extruder operation (under 

load), a voltage 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 protective conductor 
only. 
 

Length 

[m] 

Minimum cross-section 

[mm²] 

up to 19 

4.0 

1)

 

20-50 

6.0 

1)

 

2.1  Identification of information in the operating 

instructions 

In these operating instructions, safety instructions 
whose non-observance may cause hazards to per-
sons are identified with 
 

 

 

 

 
Hazard symbol according to DIN 4844 – W 9 
 
for general hazards and with   
 

 

   

 

 
Hazard symbol according to DIN 4844 – W 8 
 
for electrical hazards. 
 
Safety instructions whose non-observance may 
cause damage to the hand extruder and its functions 
are marked with 
 

 

   

CAUTION  

 
Instructions directly indicated on the hand extruder 
must be strictly followed and kept in a fully legible 
state. 
 
2.2  Personnel qualification and training 
The operating, maintenance and inspection person-
nel must possess appropriate qualification for the 
work to be performed. Functional and technical re-
sponsibilities and supervision of the operating per-
sonnel must be clearly regulated by the Operator.  
Where the personnel do not have the necessary 
skills and knowledge they must be trained and in-
structed (e.g. a DVS basic welder training in extru-
sion welding). A detailed instruction into hand ex-
truder operation will be provided by the Manufac-
turer/Supplier on request. Furthermore, the Operator 
has to make sure that the contents of the operating 
instructions is fully understood by the operating per-
sonnel. 

 

1)  for 230 V AC 

Summary of Contents for MEK-18

Page 1: ...______________ Article No ______________ These operating instructions contain important information to be observed for hand extruder operation and maintenance It is therefore imperative that they be...

Page 2: ...ETY INSTRUCTIONS FOR MAINTENANCE INSPECTION 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 DES...

Page 3: ...ailure 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 hand ex...

Page 4: ...t 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 protective...

Page 5: ...supply risk of hand extruder dam age When using an external air source make sure that the air supply line is adequately dimen sioned CAUTION The supply air must be clean dry and free from oil and wate...

Page 6: ...n and mounting activities are per formed by authorized and qualified personnel who are thoroughly familiar with the operating instruc tions As a rule the hand extruder must be shut off and the connect...

Page 7: ...ruder from unauthorized ac cess Special preservation is not required 3 3 Return to Munsch Should it become necessary to return the hand ex truder to MUNSCH Kunststoff Schwei technik GmbH always use th...

Page 8: ...e so that the preheat tem perature can be matched to the weld thickness 5 Startup and Shutoff 5 1 General In addition to the operating instructions and the na tional and local accident prevention regu...

Page 9: ...er 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 section Saf...

Page 10: ...g 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 the preheated...

Page 11: ...e to switch off the heat ing circuits Pull mains connector Maintain the air supply of the hand ex truder until the unit has completely cooled down Never use water or another coolant to accelerate the...

Page 12: ...MEK 18 MAK 18 Issue 08 2008 Rev 00 Page 13 20...

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