EN1. prefaCe1.1 intrODuCtiOnCongratulations on having purchased a KEMPPI product. Properly installedand used KEMPPI products should prove to be productive machinesrequiring only a small amount of regular maintenance.This manual is arranged to give you a good understanding of the equipmentand its safe use. There is also information on both servicing the unit as well asits technical data. Read the instructions before taking the machine into use orservicing it for the first time. Additional information on Kemppi products andtheir use can be obtained from Kemppi or a Kemppi dealer.The specifications and designs presented in this manual are subject tochange without prior notice.NOTE! Items in the manual that require particular attention in order to minimisedamage and personal harm are indicated with this symbol. Read these sectionscarefully and follow their instructions.1.2 safety instruCtiOnsKemppi welding devices conform to international safety standards. Safetyis an important issue in equipment design and manufacturing. Therefore,Kemppi welding solutions are unparalleled in safety. There are, however,always certain hazards involved in using welding equipment. Therefore, toensure your personal safety and the safety of your working environment,carefully read the safety instructions below and respect them.use of personal protective equipment• The arc and its reflecting radiation damage unprotected eyes. Shieldyour eyes and face appropriately before you start welding or observewelding. Also note the different requirements for the darkness of thescreen in the mask as the welding current changes.• The arc radiation and spatters burn unprotected skin. Always wearprotective gloves, clothing and footwear when welding.• Always wear hearing protection if the ambient noise level exceeds theallowable limit (e.g., 85 dB(A)).general operating safety• Exercise caution when handling parts heated in welding. For example,the tip of the welding torch, the end of the welding rod and the workpiece will heat during gouging to a burning temperature.3Minarc 150, 151, 150 VRD, 120/150 AU / © Kemppi Oy / 0901