GRASS T RIMMER /BRUSH CUTTEROPERATOR' S M ANUAL 5EQUIPMENTWARNING DANGER• Use only ECHO approved attachments. Serious injury may resultfrom the use of a non approved attachment combination. Readand comply with all safety instructions listed in this manual andsafety manual.• ECHO, INC. will not be responsible for the failure of cuttingdevices, attachments or accessories which have not been testedand approved by ECHO.Before operation a complete check of the unit must be performed;• Check unit for loose/missing nuts, bolts and screws. Tighten and/orreplace as needed.• Inspect fuel lines, tank and area around carburetor for fuel leaks. DONOT operate unit if leaks are found.• Inspect shield for damage and ensure that the cut-off knife issecurely in place. Replace if either is damaged or missing.• Check that the cutting attachment is firmly attached and in safeoperating condition.• Check that front (loop) handle and optional shoulder/waist harnessare adjusted for safe, comfortable operation. See Assembly forproper adjustment.• Have repairs done only by an authorized ECHO Service Dealer.• Do not use any attachment, accessory or replacement part unless itis recommended in the Operator's Manual.Spark Arrestor - Catalytic Muffler / Muffler• The muffler or catalytic muffler controls the exhaust noise andemissions. The spark arrestor screen prevents hot, glowing particlesof carbon from leaving the muffler. Make sure the spark arrestorscreen is in good repair and properly seated in the muffler. Keepexhaust area clear of flammable debris. Avoid contact during andimmediately after operation.