Manual
8 Recommendations for repairing plastic parts
Plastics must never be heated above their decomposition temperature, as this can gravely
impair their mechanical properties. For thermoplastics, this temperature is usually between
250 °C and 320 °C. Heating thermoplastics to high temperatures (with the welding piston often
heated above 400 °C) can cause discolouration. That said, the preset temperature should be
reduced due to the aforementioned properties.
Excessive smoke indicates that the temperature is too high. If this occurs, turn the preset tem-
perature down using the temperature controller. If it takes too long to melt the material, increase
the set temperature accordingly.
9 Troubleshooting
Problem Cause Remedy
The welding tip
does not get hot.
No mains voltage or the welding piston
is defective.
Check the mains
voltage.
The welding tip is
not hot enough.
The preset temperature is too low. Increase the preset
temperature and wait
until the status lamp
goes out.
The device gets
very hot (> 50 °C).
The device remained on too long. Let it cool down and
try again. If the piston
heats up quickly, a diffe-
rent defect may exist.
Plastic does not
melt.
– The workpiece is not thermoplastic.
– The welding tip is not hot enough
(see above).
– The surface of the welding tip is
soiled, which reduces heat conduc-
tion.
– Use a different
material.
– Clean the welding tip
or replace it with a
new one.
10 Cleaning and care
Important:
– Do not use aggressive cleaning agents, rubbing alcohol or other chemical solutions.
They can damage the housing and can cause the product to malfunction.
– Do not submerge the product in water.
1. Disconnect the product from the power supply.
2. Clean the product with a dry, lint-free cloth.
11 Disposal
1
Product
This symbol must appear on any electrical and electronic equipment placed on the
EU market. This symbol indicates that this device should not be disposed of as
unsorted municipal waste at the end of its service life.
Owners of WEEE (Waste from Electrical and Electronic Equipment) shall dispose
of it separately from unsorted municipal waste. Spent batteries and accumulators,
which are not enclosed by the WEEE, as well as lamps that can be removed from
the WEEE in a non-destructive manner, must be removed by end users from the
WEEE in a non-destructive manner before it is handed over to a collection point.
Distributors of electrical and electronic equipment are legally obliged to provide free take-back
of waste. Conrad provides the following return options free of charge (more details on our
website):
in our Conrad ofces
at the Conrad collection points
at the collection points of public waste management authorities or the collection points set
up by manufacturers or distributors within the meaning of the ElektroG
End users are responsible for deleting personal data from the WEEE to be disposed of.
It should be noted that different obligations about the return or recycling of WEEE may apply in
countries outside of Germany.
12 Technical data
Input voltage/current ..................... AC 220 V – 240 V 50 Hz; max. 80 W power consumption
Welding tip temperatures .............. 200 – 450 °C ±5%
12.1 Ambient conditions
Operating temperature ................. 0 to +40 °C, 10-90% relative humidity
Storage temperature ..................... 0 to +40 °C, 20-80% relative humidity
12.2 Miscellaneous
Dimensions (L x W x H) ................ 290 x 31 x 31 mm
Connection cable length ............... 120 cm
Weight .......................................... approx. 226 g
7 Handling
Plug the device into the mains socket and let the welding piston heat up. As the welding piston
heats up, the status lamp lights up red and goes out when the preset temperature is reached.
You can adjust the preset temperature between 200 °C and 450 °C by turning the temperature
controller clockwise. When the actual temperature falls below the preset one from time to time,
the status lamp lights up red as the welding piston reheats. The lamp switching on or off has no
effect on the operational readiness after the welding piston has reached the preset tempera-
ture. The periodic light-up only indicates that the welding piston is reheating.
7.1 Getting started after the heat-up process
Before you proceed with the repair, you can x the cracked spot from the back using the sup-
plied heat-resistant adhesive tape. Then, clean the area to be repaired with the supplied steel
brush.
The supplied steel mesh proves useful when it comes to joining the components and absorbing
load. Cut the steel mesh such that it extends about 10 mm into the material on both sides of
the seam.
Then, drive the steel mesh into the plastic with the brass tip of the welding piston. Assuming
the thickness of the workpiece is sufcient, the steel mesh should extend no farther from the
material. You can then use the included plastic strips to replenish the material and smooth it out
with the smooth surface of the brass tip.
After the workpiece has cured, polish the seam using suitable sandpaper (coarse to ne) and
varnish if necessary. When dealing with long cracks, you should start from the open end and
work your way to the end of the crack.
You can weld continuous cracks or several components from the outside to the midpoint.
This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com)).
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This publication represent the technical status at the time of printing.
Copyright 2023 by Conrad Electronic SE. *2899503_V1_1023_02_m_VTP_EN