Echo SRM-236TES Operator's Manual

24Maintenance and care1. Inspect blades (A) before installation. Check for sharpness.Dull blades increase the risk of blade kickback reactions.Small cracks can develop into fractures resulting in a pieceof blade flying off during operation. Discard cracked bladesno matter how small the crack.2. Insert locking tool (B) into a hole located on the right side ofangle transmission while forcing retainer spring to the leftside.3. Insert locking tool further into blade retainer fixing slot (C) tofix output shaft.4. Using the socket wrench, remove the nut (D), cup (E), andlower blade retainer (F).5. Securely tighten the blade, lower blade retainer, cup, and nutby hand.6. Tighten the nut (turn anticlockwise) using a socket wrench.Never fasten while applying your weight. Otherwise thethread of nut could be broken.7. Remove locking tool.Checking the blade  Use only blade designated for this model by the manufacturer. When a crack is noticed on the blade, do not use it but replacewith a new one. Ensure that the blade is correctly fitted in accordance with theinstructions. When the cutting blade becomes dull due to wear reverse it forfurther use. When chip or bend occurs on the blade, vibration will increase.Replace with new one. When filing the blade file 3 cutting edges evenly using a flat fileas shown in the illustration. Otherwise, the balance will be lostand vibration will increase.CAUTION Fix output shaft securely using locking tool in order toprevent it form rotating when blade is mounted. Other-wise, the blade fastening nut will not be tightened suffi-ciently.