Leister Information Extruder Repair Fusion 2/3/3C Please pay attention to the following repair-example: Problem: Fusion 3C (also Fusion and 3) heat up not enough Heating element works fine and also the power (Watt) is o.k Cause: Not correct mounted welding shoe That’s the cause for blocked air opening and air-loss between the welding shoe holder and the Extruder-tube Solution: Take of the welding-shoe, clean it and mount it again Start and heat up the extruder, check the temperatures again Conclousion: In case of Fusion-extruders with heat-up problems, please check first the welding shoe It should be mounted correct and clean Picturs: Pic 1: not correct mounted welding shoe 03.05.2007 Thomas Furrer Pic 2: very dirty welding shoe with blocked air-opening Pic 3: airloss 03.05.2007 Thomas Furrer