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General Safety Information

The WGW 300 is a high voltage piece of equipment.  Always disconnect the power source before performing 
service and maintenance to the unit.  Never pull or carry welder by the power cord or electrical connection.  
Always keep slack in extension cord while in operation to avoid damage to the power connection.  Keep hands 
and other body parts clear of heating wedge and elements when hot.  Do not operate near flammable materials.  
Do not apply flammable liquids to seam area.  Allow unit to cool down for at least 5 minutes before putting back 
into shipping/storage case.  Protect unit from exposure to direct rainfall or standing water.  Never attempt to weld 
in standing water. 

Intended Use 

For additional product information please refer to the product data sheet. The WGW 300 has been manufactured 
according to the latest technology and current safety regulations.  However, improper use or abuse may lead to 
hazardous conditions for the user or third party or damage to the unit. 

Always have this manual handy at the location where the WGW 300 is being used so that it can be referred to 
quickly and easily. 

The technician assigned to operate this welder must have read through and become familiar with this manual 
before starting work, particularly the section on safety. 

Do not make changes or modifications to the WGW 300 relative to safety without contacting the manufacturer for 
advice. 

Maintenance 

Maintenance, inspection and adjustment of the WGW 300 may only be carried out by qualified personnel.  
Before removing or installing spare parts or performing other repair operations to the WGW 300, consult the 
manufacturer for advice on proper procedures. This will help insure a safe and successful outcome.  Always make 
sure all screw connections are tight before attempting to operate the unit after maintenance or repair. Also make 
sure all covers, guards, and other safety devices have been reinstalled before use.  

Power Requirements 

The voltage requirement of your WGW 300 hot wedge welder depends on voltage specified when ordered. WGW 
300 will operate properly at 208VAC to 240VAC.

Note: 

The above operating voltage ranges refer to actual voltage at point of welder plug-in. In other words, the 

voltage under load at the welder end of the extension cord.  To measure voltage under load, connect the welder 
to the extension cord and generator that will be used.  Start the generator and turn both welder power switches to 
the on position.  While the number 1 indicator light on the temperature controller is illuminated and the wedge is 
heating, separate the plug at the end of the welders power cord just enough to expose the prongs.  Using a digital 
voltmeter, measure the voltage under load between the hot and neutral prongs. 

This procedure should only be performed by a qualified electrician.

Generator Recommendation 

If using house power from a building circuit, please contact the manufacturer for advice on plug and cord 

Summary of Contents for WGW 300

Page 1: ...1 CN GB WGW 300 155 11 201109 400 007 6695 www leisterchina com...

Page 2: ...2 GB CN English Operating Instructions 3 13...

Page 3: ...ot wedge when they are hot Allow the device to cool down first Never point the hot air flow at people or animals Connect the device to a socket with a protective conductor Any interruption of the prot...

Page 4: ...contacting the manufacturer for advice Maintenance Maintenance inspection and adjustment of the WGW 300 may only be carried out by qualified personnel Before removing or installing spare parts or per...

Page 5: ...0W Dimension mm 445 x 323 x 315 Weight kg 15 Temperature O C 450 Speed m min 0 8 5 Weldable materials HD PE LD PE PP PE Technical data and specifications are subject to change without prior notice Mat...

Page 6: ...tion by the lock pin At this point the material should move around freely between the nip rollers Turn the hex nut 6 Figure 1 counter clockwise until the nip rollers begin to pinch down on the materia...

Page 7: ...st to the nip rollers and one for the front roller set furthest from the nip rollers Removing upper contour roller assembly Remove screw from the end of the shaft that the material guide plate pivots...

Page 8: ...ler this will give you a fresh starting point and you will make a final adjustment on this roller later Using a 13mm open end wrench loosen the lockdown bolt hex head for the rear lower contour roller...

Page 9: ...ty of burn outs Step 4 Set up Wedge Fore Aft Adjustment The fore aft adjustment sets the limit of travel of the heating wedge in its fully engaged position In other words how close the tip of the wedg...

Page 10: ...lps to eliminate hot spots on the nip rollers and makes starting a weld quicker and easier Setting Wedge Temperature OMRON Controller 5 button style Temperature controller has a dual display The curre...

Page 11: ...e wedge lock handle and slide wedge toward nip rollers until the lock pin slides off the end on the slide rail Make sure wedge is completely engaged before continuing Fourth engage nip rollers by push...

Page 12: ...ment Hex Nuf 7 Lower Frane Chain Cover 8 Front Handle 9 Heating Wedge Slide Handle 10 Lock Handle 11 Heating Cartridge 12 Front Lower Contour Roller 13 Rear Lower Contour Roller 14 Heating Wedge 15 Up...

Page 13: ...13 WELDY WGW 300 CN...

Page 14: ...14 WGW 300 5 WGW 300 WGW 300 24 220V WGW 300 208 240V 3500W 5000W 3x1 5mm2...

Page 15: ...15 WGW 300 V 230V W 1750W mm 445 x 323 x 315 kg 15 O C 450 m min 0 8 5 HD PE LD PE PP PE WGW 300 1 5 2 5mm HDPE 6 6 14...

Page 16: ...16 14 6 3cm 6 15 WGW 300 1 5 2 5mm HDPE 6 14 15...

Page 17: ...17 12 13 4mm 6mm 13mm 7cm 2 7 12 13mm 13 2 12 13...

Page 18: ...18 12 12 13 16 13 12 13 16 13 18 18...

Page 19: ...19 1 3 5 2 WGW 300 4 12 15cm 5 4 2 3 1...

Page 20: ...20 10cm 5 10...

Page 21: ...21 WGW 300 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 13 12 11 1 10 9 16 15 14 18 17 6 8 3 2 4 5 7...

Page 22: ...22...

Page 23: ......

Page 24: ...Your partner Copyright by Leister www leisterchina com WGW 300 Operation Manual ZH 06 2021 201109 400 007 6695 media leister cn...

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