14 X7722279401© 6/2015 ECHO Inc.ASSEMBLY SRM-225ASSEMBLYPlastic Shield Installation(Nylon line operation)The plastic shield is for use with the Nylon Line Head only. Install Metal Shield when using plastic ormetal blades, or serious injury may result.1. Remove plastic threaded shaft sleeve and adapter plate (C)from PTO shaft (A).2. Place the shield on the bottom of the bearing housingflange.3. Place shield plate (B) on shield, align holes. Install three (3)screws from bottom through plate and shield into gear case.4. Assemble adapter plate (C) onto PTO shaft.Nylon Line Head InstallationWear Gloves or personal injury may result:• Cutoff knife is sharp.• Gearcase and surrounding area may be hot.1. Be sure adapter plate (C) remains on PTO shaft (A).2. Align locking hole in upper plate with notch in edge of gear housing and insert head locking tool (D).3. Thread line head (E) onto shaft by turning itcounterclockwise until head is tight against adapter plate(C).4. Remove locking tool (D).Semi-automatic nylon line heads must be used only with plasticdebris shield with cutoff knife. Using nylon line heads with metaldebris shield can result in trimmer damage, caused byoperation with excessive line length.Note: Your nylon line head may appear different than nylon line head shown.Parts Required: Plastic Debris Shield, Shield Plate, three (3) 5 x 16 mm screws.Parts Required: Nylon Line Head.ABCDACDE