I. Bump head for BT2200LDC and BC2200E■ REPLACING TRIMMING LINETo refill a new trimming line either ;A : Install the prewound reel #153577 orB : Rewind the existing reel.For replacement line, use a diameter of .080in (2.03 mm). The engine may overheat andfail if you use a larger line. For safety reason,do not use metal-reinforced line.A : REWINDING THE EXISTING SPOOL• DISASSEMBLING THE HEAD1. Hold the outer spool with one hand andunscrew the Bump Knob bolt (counter-clockwise for BT2200LDC and BC2200E).Inspect the captured bolt inside the BumpKnob to make sure it moves freely. Replacethe Bump Knob if it is damaged.2. Remove the inner reel. Use a clean cloth toclean the inner reel, the inside of the outerspool and the center shaft.3. Inspect the indexing teeth on the inner reeland outer spool for wear and, if necessary,deburr or replace the reel and spool.• WINDING NEW LINE1. Take 25 ft (7.6 m) of new trimming line,insert one end through either hole on theinner reel and put the other end throughanother hole. Hold the line where the bothends are matching and pull it to make theloop as small as possible.2. Wind the line in the direction indicated onthe inner reel, in even and tight layers. Besure not to overlap the two ends of the line.3. Insert each end of the line into the holdingslot.MAINTENANCEBT2200LDCBC2200E 9