Kemppi FastMig MSF 53 Operating Manual

Also see for FastMig MSF 53: Service manual

Contents

Kemppi FastMig MSF 53 Operating Manual Manual pdf 13 page image

11FastMig MSF 53, 55, 57 / © Kemppi Oy / 1515EN2.7 ADJUSTMENT OF TIGHTNESS OF REEL BRAKEBrake force is adjusted through hole in locking device of spool hub by screwing the controlscrew (A) with screwdriver.ABrake force is adjusted by screwing the brake force adjusting screw (B), tightening clockwisedirection.ABAdjust brake force as so big that the wire is not allowed to become too loose on the reel sothat it would spill from the reel when the rotation of the reel stops. Need for brake force isincreased with increase of wire feed speed.Since the brake loads for its part the motor, you shouldn’t keep it unnecessarily tight.2.8 BURN BACK TIMEElectronics of feed unit controls stopping of welding automatically so that the wire enddoesn’t melt fastened to the contact tip or the work piece. Automatics work regardless of thewire feed speed. Can be adjusted also from SETUP-menu ('PoC').2.9 GROUND CABLEConnecting of earth cable should be preferably connected directly to the welding material.Contact surface of press always should be as large as possible.Clean the fastening surface from paint and rust!Use in your MIG equipment at least 70 mm². Thinner cross-sectional areas might causeoverheating of connectors and insulations.Make sure that the welding gun in your use is designed for max. welding current needed byyou!Never use a damaged welding gun!2.10 SHIELD GASNOTE! Handle gas bottle with care. There is a risk for injury if gas bottle or bottle valve is damaged!For welding stainless steels, mixed gases are normally used. Check that the gas bottle valveis suitable for the gas. The flow rate is set according to the welding power used in the job. Asuitable flow rate is normally 8 – 10 l/min. If the gas flow is not suitable, the welded joint willbe sporous. Contact your local Kemppi-dealer for choosing gas and equipment.