Leister WELDPLAST EC4 Operating Instructions Manual Download Page 15

15

OPERATING

Leister WELDPLAST S4 / EC4  hand extruder

Replacing the welding shoe

• Switch off the tool at its operating temperature and disconnect it from the

mains supply.

• Remove the 

complete welding shoe (8)

by loosening the 

screws (35)

from the

extruder nozzle (32).

• Clean  the 

extruder nozzle (32)

each time the welding shoe is replaced and

remove any welding deposits.

• Attach an appropriate welding shoe.

Work with temperature resistant gloves only.
Danger of getting burned!

• The welding shoe must only be replaced when the tool has attained its operating

temperature.

Disassembling the welding shoe

• The 

welding shoe (36)

can be removed by unscrewing the 

clamping bolts (33)

from the 

welding shoe holder (34)

. (e.g. for reworking)

8 Welding shoe

32  Extruder nozzle
33 Welding shoe clamping bolts

34 Welding shoe holder
35 Welding shoe holder set screw

35

8

Welding direction

Orientation of the 

pre-heating nozzle (9)

for different welding directions

With the standard hot-air tube the nozzle 
can be mounted either left or right.

With the optional hot-air
tube the nozzle is moun-
ted on top.

8

33

32

35

34

35

Summary of Contents for WELDPLAST EC4

Page 1: ...B OPERATING INSTRUCTIONS Leister Process Technologies Riedstrasse CH 6060 Sarnen Switzerland Tel 41 41 662 74 74 Fax 41 41 662 74 16 www leister com sales leister com Welding PE and PP thermoplastics...

Page 2: ...t For personal protection on building sites we strongly recommend the tool to be connected to a RCCB Resi dual Current Circuit Breaker The voltage rating stated on the name plate of the tool must corr...

Page 3: ...elding output 3 kg h PE 1 5 2 2 PP 1 4 1 9 PE 0 7 2 3 PP 0 5 2 0 Welding output 4 kg h PE 2 2 3 8 PP 2 2 3 4 PE 1 1 3 7 PP 1 1 3 7 average values at 50 Hz Welding rod mm 3 4 0 2 in accordance with DVS...

Page 4: ...lue plast 19 Set value plast 20 Actual value air 21 Set value air 22 Bar display 23 Welding output display 24 Menu key 25 Back key 26 Enter key 27 Down key 28 Select key 29 Up key 30 Status display 31...

Page 5: ...st remain unimpeded and must not hinder the user or others during operation Rest the hand extruder on a fireproof surface Hot metal parts and the hot air jet must have sufficient clearance from the su...

Page 6: ...to 19 2 5 20 50 4 0 The tool starts immediately by heating up to the target temperatures last set A counter in the status display then counts down the warm up lock time of 220 sec The hand extruder r...

Page 7: ...election functions Menu selection return to operating window Return as ESC changes are not saved Select and return to operating window Select Cursor up selected parameter Cursor down selected paramete...

Page 8: ...ion for welding Start window After switching on the extruder the name of the tool and the current soft ware version are displayed for 3 sec Operating window The operating window shows the para meters...

Page 9: ...an be reduced from the maximum value e g 85 to the minimum displayed on the display bars 22 The plastizised material throughput is also dependent on the welding rod thickness used If the welding outpu...

Page 10: ...on the status display 30 with a status change If necessary the drive motor is temporarily disabled until the welding parameters are once again within the prescribed tolerance band The possible status...

Page 11: ...he welding zone Preheat the welding zone with a fanning motion Place the tool over the prepared welding zone and reactivate the motor on off switch 2 Produce a test weld and analyse it Adjust the temp...

Page 12: ...t 3 Select Confirmation with the Select key must immediately follow the reset Further settings Contrast setting Given unfavourable lighting conditions and fluctuations in the ambient tempera ture the...

Page 13: ...OPERATING Leister WELDPLAST S4 EC4 hand extruder 13 Menu Menu Scroll Select Functions Scroll Select and return Return to operating window Scroll Menu navigation...

Page 14: ...ed The para meters remain saved after the tool is switched off Setting the welding output Place the cursor on the SPEED position by pressing the Select key 28 Set the welding output value 30 to 100 wi...

Page 15: ...nger of getting burned The welding shoe must only be replaced when the tool has attained its operating temperature Disassembling the welding shoe The welding shoe 36 can be removed by unscrewing the c...

Page 16: ...nly Danger of getting burned Replacing the pre heating nozzles To disassemble the pre heating nozzle loosen the clamping screw 43 on the side and pull the pre heating nozzle 9 off the hot air tube 44...

Page 17: ...ff the tool at the main switch 1 Start using the tool again under supervision and ensure that the extruder is not overheated from the outside Eject the remaining plastic from the screw if possible Sho...

Page 18: ...he base plates 38 to the tool markings The two sliders 40 allow the width to match the required tool The reel holder 39 serves to hold the reels of welding rod 300 mm To ensure optimal rod dispensing...

Page 19: ...Leister offers welding shoes for all the common seam geometries in various sizes WELDING SHOE RANGE Leister WELDPLAST S4 EC4 hand extruder 19 The Leister range Blank V weld Fillet weld Overlap weld...

Page 20: ...can be used again for a short time If the carbon brushes are not replaced within a short time the motor will run until the mechanical brush rea ches its limit stop No more error messages appear on th...

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