Assessments - 3, GPA: 4
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Facilidade de uso
Wooden carbon scraper. Parts Required: P/N 13001642031 Spark Arrestor Screen P/N 14586642031 Screen Holder 1. Remove screen cover (A), screen holder (B), and gasket (C) from muffler body. 2. Clean carbon deposits from screen (D) and muffler components. 3. Replace screen if it is cracked, plugged or has holes burned through. 4. Install with new gaskets. 20 20 Emission Models Level2. 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 EPA Phase 1 and California Emission Regulations. In addition, the carburetor is equipped with HI (A) and LO (B) needle adjustment limiters that prevent settings outside acceptable limits. 1. Before adjusting the carburetor, clean or replace the air filter and spark arrester screen. 2. Start engine and run for several minutes to reach operating temperature. 3. Stop engine. Turn HI (A) speed needle CCW (counter clockwise) to stop. Turn LO (B) speed needle midway between full CCW and CW (clockwise) stops. 4. Idle Speed Adjustment. -Start engine and turn idle (C) speed adjustment screw CW until the tines begin to turn, then turn the screw CCW until tines stop turning. Turn screw CCW an additional 1/4 turn. 5. Accelerate to full throttle for 2-3 seconds to clear excess fuel from engine then return to idle. Accelerate to full throttle to check for smooth transition from idle to full throttle. If engine hesitates, turn LO (B) needle CCW an additional 1/8 turn and repeat acceleration. Continue adjusting until smooth acceleration results. 6. Check HI (A) speed RPM at W.O.T. (Wide Open Throttle). HI speed RPM should be set to specifications found on page 10 "Specifications" of this manual. 7. Check idle speed and reset if necessary. If a tachometer is available, idle speed should be set to the specification found on page 10 "Specifications" of this manual. A B C WARNING DANGER When carburetor adjustment is completed, tines should not move at idle, otherwise serious personal injury may result. TILLER/CULTIVATOR OPERATOR'S MANUAL TILLER/CULTIVATOR OPERATOR'S MANUAL CARBURETOR ADJUSTMENT Non-Emission Models (Without Limiter Caps) Level 2 Tools Required: Screwdriver, Tachometer (ECHO P/N 90051130017). NOTE If carburetor has limiter caps follow "Carburetor Adjustment" procedures for emission models on previous page. Idle Speed Adjustment Turn "idle" speed adjustment screw (C) CW (clockwise) until tines begin to turn, then turn screw out CCW (counter clockwise) until tines stop turning. Turn screw out, CCW an additional 1/4 turn. WARNING DANGER Tines must not turn when unit is idling, otherwise serious personal injury may result. Basic Setting 1. Stop engine and turn both LO (B) and HI (A) needles in, CW until they stop and are lightly seated. IMPORTANT DO NOT over tighten needles. Forcing them to tighten will damage the carburetor. 2. Turn LO (B) needle out, CCW 2-1/2 turns. Turn HI (A) needle out CCW 2-3/4 turns. Fine Tuning (Requires Accurate Tachometer) 1. Start engine and allow to warm to operating temperature (minimum 2 - 3 minutes) varying engine speed from idle to full throttle. 2. Always begin fine tuning with LO (B) needle. a. Lean drop-off - With engine idling, turn LO (B) needle slowly CW (in) to lean drop-off point. RPM will increase, then abruptly drop-off. Note this position. (1) b. Rich drop-off - With engine idling, slowly turn LO (B) needle CCW (out) to rich drop-off point. RPM will increase then gradually slow and drop-off. Note this position. (2) c. Final setting - Set needle at mid point between lean rich drop- off points. (3) d. Turn needle 1/8 turn CCW (out) making mixture slightly richer. (4) 3. HI speed adjustment. Adjust HI (A) needle with tachometer. Refer to Wide Open Throttle RPM settings listed in "Specifications" on page 10. 4. Check idle speed and reset if necessary. If tachometer is available, idle speed should be set to the specifications found on page 10 "Specifications" of this manual. A C B WARNING DANGER When carburetor adjustment is completed, tines should not move at idle, otherwise serious personal injury may result. 22 22 Level1. Tools Required: Crosshead Screw Driver Parts Required: Lithium Base Grease. Gear Housing 1. Remove tines (See Tine Removal - Installation). 2. Clean dirt from area around gear cover (A) and remove four (4) crosshead screw (B). Be careful not to tear sealing gasket (C). 3. Support tiller with exposed gear case (D) upward. Add #0 lithium grease until nearly level with top of gear case (D). IMPORTANT Do not over fill. Too much grease will cause pressure and possible seal failure. Cleaning Tines (After Each Use) NOTE Wear gloves to protect hands from sharp blades. 1. Remove weeds, etc. from tines and wash dirt from unit. Tine Removal - Installation WARNING DANGER Stop engine and disconnect spark plug wire before removing or installing tines. Contact with revolving tines will cause severe injury. 1. Remove retaining p...