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manual abstract
Idle speed can be adjusted as required. High Altitude Adjustment High altitude adjustment is not required for proper operation of this engine. Level 2. Tools required: Screwdriver, Tachometer (ECHO P/N 99051130017). Parts required: None. NOTE Every unit is run at the factory and the carburetor is set in compliance with emissions regulations. This carburetor does not have acceleration and high speed adjustment needles. 1. Before adjusting the carburetor, clean or replace the air filter and spark arrestor screen. 2. Start engine and run for several minutes to reach operating temperature. 3. Check idle speed and reset if necessary. If a tachometer is available, idle speed screw (A) should be set to the specifications found on page 11 "Specifications" of this manual. Turn idle screw (A) clockwise to increase idle speed; counter clockwise to decrease idle speed. A WARNING DANGER When carburetor adjustment is completed, the cutting attachment should not turn at idle, otherwise serious personal injury may result. GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL LUBRICATION Level1. Tools Required: 13 mm Open End Wrench, Screwdriver, Clean rag, Grease gun P/N 91016 Parts Required: ECHO® LUBETM 8 oz. (P/N 91014) or Lithium Base Grease. Gear Housing 1. Clean all loose debris from gear box. 2. Remove plug (A) and check level of grease. 3. Add grease if necessary, DO NOT over fill. A Drive Shaft (Lower) IMPORTANT Lower and upper drive shaft must be lubricated with high temperature automotive grease every 25 hours of operation, otherwise B C drive shaft assembly overheating and failure can result. 1. Loosen two (2) screws (B) and remove center locating screw (C). Pull gear box and shield from drive shaft housing. 2. Pull flexible cable from the drive shaft housing, wipe clean and re-coat with a thin coating [15 ml (1/2 oz.)] of ECHO® LUBETM. 3. Slide the flexible cable back in the drive housing. DO NOT get dirt on the flex cable. 4. Install the gear housing and shield assembly. D IMPORTANT Flat edge of washers (D) must be against drive shaft. 26 26 1. Loosen clamping knob (A). 2. Pull locator pin (B) and rotate 1/4 turn counter clockwise to lockout position. 3. Remove attachment. D A B C 4. Remove coupler (E) from upper drive shaft assembly by loosening clamping screw (C) and removing set screw (D). B E A D 5. Remove upper flex cable (F), wipe clean, and apply a thin coating of 1/2 oz. (15ml) of grease. 6. Install cable. Make sure that the flex cable fully engages into the clutch square drive socket. 7. Slide coupler on upper drive shaft until fully seated, and align set screw hole in coupling with hole in upper drive shaft. 8. Install and tighten set screw (D), and tighten clamping screw (C). F GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL NYLON LINE REPLACEMENT Level1. Parts Required: ECHO 0.095 in. Nylon Trimmer Line 6 m (20 ft.) long. 1. Shut engine off. Lay unit on the ground with head assembly up. 2. Hold drum (A) and firmly turn spool (B) CW (clockwise) until it disengages from the inner drive. Pull spool from drum. DO NOT push in on spool when turning. B A B A 3. Use one piece of new nylon line (C) 6 m (20 ft.) long and thread through the molded loop (D) on the spool. Pull line tight and adjust so one end is 15 cm (6 in.) longer than the other. 4. Hold the spool, opening toward you. Place index finger between the two strands and wind line, tightly and evenly, in direction of arrow (E) marked "CC". 5. Stop when approximately 15-20 cm (6-8 in.) line (C) remains and place ends of line in notches (F) in spool (B). DC E CC FF B 28 28 . Feed ends of line through housing eyelets (G) and place spool (B) over drive (H). Align pegs (I) on drive with notches in spool, and push spool into drum. 7. Pull on both lines until they come free from notches (F) in spool. 8. Hold drum (A) firmly and turn spool (B) CCW (counterclockwise) until it stops. DO NOT push in on spool when turning. 9. Pull both lines out and trim to cut-off knife length. IG G B H FF B B A GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL SHARPENING METAL BLADES Three styles of metal blades are approved for use on the ECHO Brush Cutter. The 8-tooth blade can be sharpened during normal maintenance. The clearing blade and 80 tooth blade require professional service. Before sharpening, CLOSELY inspect blade for cracks (look at the bottom of each tooth and the center mounting hole closely), missing teeth and bending. If ANY of these problems are discovered, replace the blade. When sharpening a blade, always remove the same amount of materials from each tooth to maintain balance. A blade that is not balanced will cause unsafe handling due to vibration and can result in blade failure. 8-tooth Blade Tool required: Flat file (preferred), electric grinder if special care is used, round (rat tail) file for gullet (radius). 1. File each tooth at a ...