14ASSEMBLYECHO APPROVED OPTIONAL ATTACHMENTSWARNING DANGERUse only ECHO approved attachments for these models. Serious injury may result from the use of non approvedattachment combinations. Read and comply with all safety instructions listed in this manual and attachment manual.ECHO, INC. will not be responsible for the failure of cutting devices, attachments or accessories which have not beentested and approved by ECHO for use with these units.SRM Edger Attachment #99944200470SRM Cultivator Attachment #99944200510SRM Trimmer Attachment #99944200540SRM Hedge Clipper Attachment #99944200480SRM Power Pruner TM Attachment #99944200530POWER HEAD SHAFT/LOWER SHAFT ASSEMBLYTools Required: NoneParts Required: Power Head Shaft, Lower Shaft Assembly1. Set Power Head/Shaft Assembly on a level surface.2. Loosen clamping knob (A).3. Pull locator pin (B) and rotate counter clockwise 1/4 turn to lockout position.4. Carefully fit lower drive shaft assembly into coupler (C) to decalassembly line (D), making sure that the inner lower drive shaftengages into the upper drive shaft mount.NOTELower bearing housing and head assembly must be in line with theengine.ACBD