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Wiring Instructions 230V BITUMAT B2, VARIMAT V2, and WELDPLAST S6

11/9/2021

 
Plug specifications:
  • 250 Volt; 30+ Amp; 2-pole; 3-wire; grounding; twist-lock
  • Example: Hubbell HBL2621 plug
  • This tool is single phase

When installing a plug:
  • Connect the green wire to the pin with the bent tab
  • Connect the white wire to one of the pins directly left or right of the bent tab
  • Connect the black wire to the other pin directly left or right of the bent tab
  • If using a 4 prong plug, leave the pin opposite the one with the bent tab disconnected
  • Screw down the wire contacts on to the bare electrical wire only and do not clamp down on the insulation of the wire. Bad contacts cause sparking which may cause the cord to heat up and may damage equipment.

Making an Extension Cord:
  • Use a 10 Gauge or thicker cable if you plan to make a 100 ft or longer extension cord

Generator Instructions:
  • Equipment must be switched off before turning the generator on or off
  • When using a generator make sure the plug is wired for A/C
  • Recommended Generator Size:
    • BITUMAT B2: 10,000W
    • VARIMAT V2: 10,000W

Wiring Instructions for 230V GEOSTAR G5/G7, TWINNY T5/T7, UNIROOF AT/ST, VARIANT T1, and WELDPLAST S1/S2/S4

11/9/2021

 
Plug specifications:
  • 250 Volt; 20+ Amp; 2-pole; 3-wire; grounding; twist-lock
  • Example: Hubbell HBL2321 plug
  • This tool is single phase

When installing a plug:
  • Connect the green wire to the pin with the bent tab
  • Connect the white wire to one of the pins directly left or right of the bent tab
  • Connect the black wire to the other pin directly left or right of the bent tab
  • If using a 4 prong plug, leave the pin opposite the one with the bent tab disconnected
  • Screw down the wire contacts on to the bare electrical wire only and do not clamp down on the insulation of the wire. Bad contacts cause sparking which may cause the cord to heat up and may damage equipment.

Making an Extension Cord:
  • Use a 10 Gauge or thicker cable if you plan to make a 100 ft or longer extension cord

Generator Instructions:
  • Equipment must be switched off before turning the generator on or off
  • When using a generator make sure the plug is wired for A/C
  • Recommended Generator Size:
    • GEOSTAR G5/G7: 6,000W
    • TWINNY T5/T7: 7,000W
    • UNIROOF AT/ST: 7,000W
    • VARIANT T1: 7,000W
    • WELDPLAST S1: 4,000W
    • WELDPLAST S2: 6,000W
    • WELDPLAST S4: 7,000W

Wiring Instructions for 230V ELECTRON ST, FUSION 2/3/3C, and TRIAC AT/ST

11/9/2021

 
Plug specifications:
  • 250 Volt; 20+ Amp; 2-pole; 2-wire; non-grounding; twist-lock
  • Example: Hubbell HBL7102C plug
  • This tool is single phase

When installing a plug:
  • Connect one wire to either one of the plug pins, and the other wire to the other pin
  • Screw down the wire contacts on to the bare electrical wire only and do not clamp down on the insulation of the wire. Bad contacts cause sparking which may cause the cord to heat up and may damage equipment.

Making an Extension Cord:
  • Use a 10 Gauge or thicker cable if you plan to make a 100 ft or longer extension cord

Generator Instructions:
  • Equipment must be switched off before turning the generator on or off
  • When using a generator make sure the plug is wired for A/C
  • Recommended Generator Size:
    • ELECTRON ST: 4,000W
    • FUSION 2/3/3C: 7,000W
    • TRIAC ST: 4,000W

Wiring Instructions for 230V COMET, UNIDRIVE 500, UNIFLOOR 300/500, and UNIPLAN 300/500

11/9/2021

 
Plug specifications:
  • 250 Volt; 15+ Amp; 2-pole; 3-wire; grounding; twist-lock
  • Example: Hubbell HBL 4570CCN
  • This tool is single phase

When installing a plug:
  • Connect the green wire to the pin with the bent tab
  • Connect the white wire to one of the pins directly left or right of the bent tab
  • Connect the black wire to the other pin directly left or right of the bent tab
  • Screw down the wire contacts on to the bare electrical wire only and do not clamp down on the insulation of the wire. Bad contacts cause sparking which may cause the cord to heat up and may damage equipment.

Making an Extension Cord:
  • Use a 12 Gauge or thicker cable if you plan to make a 100 ft or longer extension cord

Generator Instructions:
  • Equipment must be switched off before turning the generator on or off
  • When using a generator make sure the plug is wired for A/C
  • Recommended Generator Size:
    • COMET: 4,000W
    • UNIDRIVE: 5,000W
    • UNIFLOOR: 5,000W
    • UNIPLAN: 7,000W

Wiring Instructions for WELDPLAST S1 120V

11/9/2021

 
Plug specifications: 120 Volt; 20+ Amp; 2-pole; 3-wire; grounding; twist-lock Example: Hubbell HBL2311 plug

When installing a plug:
  • Connect the green wire to the pin with the bent tab
  • Connect the white wire to one of the pins directly left or right of the bent tab
  • Connect the black wire to the other pin directly left or right of the bent tab
  • Screw down the wire contacts on to the bare electrical wire only and do not clamp down on the insulation of the wire. Bad contacts cause sparking which may cause the cord to heat up and may damage equipment.

Making an Extension Cord:
  • Use a 10 Gauge or thicker cable if you plan to make a 100 ft or longer extension cord

Generator Instructions:
  • Equipment must be switched off before turning the generator on or off
  • When using a generator make sure the plug is wired for A/C
  • Recommended Generator Size: 4,000W

​How to Clean the Welding Shoe on an Extrusion Welder

10/19/2020

 
Cleaning the welding shoe of an extrusion welder is an important step when stopping work for the day or any extended period of time. 

  1. Extrude until six inches of extrudate comes out of the shoe.
  2. Cut a piece of rod about 8 inches long. Insert one end of the rod into the end of the shoe. Move it in a small circle along the edge of the hole of the shoe. Wait 5 seconds.
  3. Slowly pull out the rod. The extrudate inside the shoe will come out with it.
  4. While wearing a heat-resistant glove, remove the welding shoe holder. 
  5. Look behind the welding shoe holder into the back of the shoe. Gently remove any extrudate from the back of the hole in the shoe. Be careful not to cut into the shoe.
  6. If any rod pulls out of the back of the shoe and remains on the brass nozzle, cut it off of the nozzle.
  7. Brush off any extrudate from the shoe and the nozzle.

General Tips

10/10/2019

 
When installing a plug on to a power cord:
  • Screw down the wire contacts on to the bare electrical wire only and do not clamp down on the insulation of the wire.  Bad contacts cause sparking which may cause the cord to heat up and may damage equipment. 

Ensure your tool is completely cooled down before shutting off:

  • Repeatedly shutting down the tool without allowing it to cool adequately may cause the element to crack; the cracking of the ceramic element may also cause the mica tube to burn or peel. 

Watch for a plugged air intake:
  • A plugged air intake will cause bad welds. Regularly check that the air intake is clear. Clean it with a soft brush when needed.

If a tool's heater tube gets wet:
  • Do not turn the heat on right away the next time the tool is started as there is a risk of damage to the element and mica tube.  Run the blower or tool without heat for 10 minutes so that the moisture is safely blown off prior to slowly increasing the heat to the desired level. 

VARIMAT Tech Tips

10/8/2019

 
Symptom: The VARIMAT does not start driving when the ELECTRON is placed in the weld position, or it starts briefly and then stops driving.
  • Be sure that the VARIMAT has reached the set temperature.
  • When placing the blower in weld position be sure that the blower clicks into place and the trigger drops. If not, the blower may slip out of position while welding, stopping the drive.
  • When the ELECTRON blower is put into weld position, it triggers either a proximity sensor or push-button switch to engage the drive.
    • VARIMAT models have a sensor with a green tip mounted through the centre of the pillow block
    • VARIMAT V and older VARIMAT V2 models have a sensor with a green tip mounted underneath the guide shaft
    • Newer VARIMAT V2 models have a push-button switch with a grey tip mounted underneath the guide shaft
    • Failing proximity sensors are replaced with push-button switches.
  • To test a green proximity sensor:
    • Put the blower in the upper position and turn the heat on. When it reaches temperature and is ready to weld, press a piece of metal, such as the side of a screw driver, against the green tip of the sensor.
    • If the drive does not engage the VARIMAT needs to be sent to STANMECH for Service.
    • If the drive does engage, the sensor may be mounted too far back to sense the metal of the tool holder. See the Operator's manual for the proper installation procedure for the sensor. 
  • To test a grey push-button switch:
    • Put the blower in the upper position and turn the heat on. When it reaches temperature and is ready to weld, push the switch in with your finger and see whether the drive turns on. If it does not, the VARIMAT needs to be sent in to STANMECH for service.

Symptom: The VARIMAT suddenly turns off and on, or does not turn on at all 
  • The cord may be broken at the housing if the VARIMAT is often steered by pulling on the cord. The tracking should be corrected by the tracking adjustment screw, and steering should be done by the handle.
  • Check the wires in the cord by bending it a short section at a time, from the housing end to the plug end, to see if the VARIMAT will turn on again. Look for cuts in the cord while doing this.
  • Check the power source.
  • In the VARIMAT cord and any extension cord, check that the plug is the same rating as the socket and is locked in properly.

Symptom: Temperature is not steady, it floats up and down 
  • Check that the ground pin (the pin with the 90 degree bend) on the plugs of the VARIMAT and any extension cords used are connected to the ground wire. They may be either loose or pushed too far in so that the screw is clamping down on the insulation and not on the wire. If the ground is not connected the temperature can float up and down.

Symptom: The VARIMAT V displays the desired temperature but fails to reach the desired temperature
  • The VARIMAT V can be put into "percent" mode to check how hard it is working to meet the desired temperature. If it is always working at 100%, the supply voltage is too low.
  • Put the VARIMAT V into percent mode by cooling it down, shuting it off, and holding the "+" and "-" keys while turning it on. After 3 seconds the display values will appear. In the bottom right corner the normal Welded Length number will not be displayed, but instead the percentage that the blower motor is running. The VARIMAT V can be operated as normal in this mode. If after arriving at the desired temperature the display continually shows 100%, check the tool cord, extension cord, plugs and sockets. If using a generator, check the Tech Tip "Working With Generators" above.

Symptom: Bad tracking, membrane burns, folds
  • Check if the nozzle is too far under the drive tire, contacting the green belt and lifting one of the rollers in the hold-down assembly. The nozzle should not touch the green belt or roller since this interferes with the placement of the membrane and the flow of air. In welding position the inside edge of the nozzle opening should be 1 - 2 mm. outside of the drive tire, with the rest underneath. The edge of the nozzle should be 4 to 5 cm. away from the bottom edge of the drive tire.

The lock pin may snap if shock or extreme pressure is put upon the ELECTRON blower while it is locked in the upper position.
  • The most common reason that a lock pin breaks is if the VARIMAT is picked up with one hand on the blower handle when the nozzle is in the upper position. When lifting the VARIMAT, hold it by the T-Grip and frame only.

How to Repair the Hold-Down Assembly of a Varimat

10/2/2019

 
​The two hold-down assemblies and the green belt in the picture below keep the top layer of membrane flat on the bottom layer as it is heated by the nozzle, just before the drive tire presses down on it.
Picture

​Each hold-down assembly contains the following parts:

Picture
Item # in Drawing Part # Name
62 104.262 Circlip for shaft ø 8, Varimat
85 104.225 Pressure spring, 0.9 x 13.5 x 37.5 Varimat
200 108.125 Holding-down roller, Varimat
201 107.055 Guide Pillar, Varimat
202 107.056 U-profile, Varimat
203 107.077 Roller, hold down Varimat belt
204 104.267 Spring, roll pin 8 x 20 Varimat
205 100.299 Screw, raised cheese head M4 x 10

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What to Check if your VARIANT T1 Stops in the Middle of a Weld

10/2/2019

 
​If your Variant T1 stops driving while welding, check that the heater locks correctly into the welding position. 

How the Weld Position Locking Mechanism Works

After allowing the tool to cool down completely. Slide the heater all the way to the right/outside of the tool. Note that you can now see a groove in the guide shaft.
​
In the picture below, a small flat screw driver is being held against a ball bearing set screw.
Picture

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STANMECH Technologies Inc. 
​944 Zelco Drive Burlington ON L7L 4Y3 | 1-888-438-6324 | info@stanmech.com
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