Faqs, Causes And Measures (Hemtek St / K-St); Accessories; Service And Repair; Training Course - Leister HEMTEK ST Notice D'utilisation

9. FAQs, causes and measures (HEMTEK ST / K-ST)

Deficient quality welding result:
• Check drive speed, welding temperature and air volume.
• Clean welding nozzle (18) with wire brush (see chapter 6.7 Switch off device/maintenance).
• Welding nozzle (18) set incorrectly (see chapter 5.1 welding nozzle).
• Guide (14) set incorrectly (see chapter 5.2 Adjusting the guide)
After 5 minutes at the most, the set welding temperature has still not been reached:
• Inspect mains voltage.
• Reduce air volume.
Welding medium is not guided straight:
• Guide (14) set incorrectly (see chapter 5.2 Adjusting the guide).
• Welding nozzle (18) set incorrectly (see chapter 5.1 welding nozzle).
• Table fastening (7) is not mounted parallelly to HEMTEK ST / K-ST.
(see chapter 5.1 Setting and assembling table fastening)
• Guiding the material well by hand.

10. Accessories

Use only original Leister spare parts and accessories because otherwise no warranty or guarantee claims can
be asserted.
You can find more information at www.leister.com.

11. Service and Repair

Repairs shall be assigned exclusively to authorized Leister Service points.
Leister Service points guarantee a professional and reliable repair service with original spare parts in accordance
with circuit diagrams and spare parts lists. You will find the address of your authorized service center on the last
page.
You can find more information at www.leister.com.

12. Training Course

Leister Technologies AG and its authorized service points offer welding courses and introductory training classes.
You can find more information at www.leister.com.

13. Warranty

• The guarantee or warranty rights granted for this device by the direct distribution partner/salesperson apply from
the date of purchase.
• In the event of a guarantee or warranty claim (verification by invoice or delivery note), manufacturing or processing
errors will be rectified by the sales partner through replacement delivery or repair.
• Other guarantee or warranty claims are excluded within the framework of mandatory law.
• Damages resulting from natural wear, overload, or improper handling are excluded from the warranty.
• Heating elements shall be excluded from warranty obligations or guarantees.
• No guarantee or warranty claims exist for devices which have been converted or changed by the purchaser or for
which non-original Leister spare parts have been used.
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