Assessments - 5, GPA: 4.4
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cylinder Carburetor out of order Disassemble and check. C.D.I. module defective Remove and replace. Engine does not start (or, is diffi cult to start) Engine cranks There is fuel in the tankFuel is reaching carburetor Fuel is reaching cylinder There is spark at hightension cord endThere is spark at plug Starting procedures No spark at high tension cord end No spark at plug Fuel does not keep running Acceleration and low speed Ignition coil defective Remove and replace. Wire connection defective Reconnect. High-tension cord Repair as necessary. connection defective Switch is grounded Switch on. Insulator cracked Replace plug. Spark gap incorrect Adjust. Covered with carbon Clean or replace. Fouled with fuel Clean or replace. Starting procedures Start correctly. incorrect Fuel passage clogged Disassemble and clean. with dust Fuel passage locked Remove air. with air Fuel leaking from fixing Retighten all screws. surfaces of carburetor correct function defective Carburetor overfl ow Air passage, fuel tank clogged with dust Fuel inlet needle valve clogged with dust Muffler sticky with fuel Bearing damaged Piston and / or cylinder Replace or clean. Clean. This is because fuel mixture is too rich. Start the engine several times with choke rod fully open and run at fast idle until engine does not smoke. Disassemble and replace. Disassemble and replace. Engine does not crank seized Crankshaft worn Disassemble and replace. Crankshaft contacting crankcase Disassemble and replace. - 13 Table 2 Output (engine speed) suffi cient Output (engine speed) insuffi cient Engine overheated Firing function defective Carburetor defective Other troubles Spray is not a fine mist No spray Engine keeps running, Improper fuel is used Use fuel with correct mixing ratio. Never use gasoline of poor quality. Spark plug defective (burnt) Replace. As cooling fins clogged, air does not pass well Clean fins. Excessive deposits in combustion chamber Disassemble and removecarbon. Plug damaged or fouled Replace or clean. Combustion poor due to defective wiring Check wiring. Carburetor overflow Refer to Table 1. Air filter clogged Clean as necessary. Compression insufficient (piston ring stuck or worn out) Disassemble, check and replace if necessary. Cylinder chromium plating peeled or worn out Replace cylinder. Exhaust port clogged with carbon Clean as necessary. Throttle is not fully open Readjust. Pump case/blade worn out (Low pressure) Replace. Chemical liquid line defective (Mechanical seal or packing etc.) Replace. Cracked spraying hose is used Replace. Nozzle orifice is too large (Too much chemical is released) Replace. Chemical line is completely clogged with dirt Clean. Chemical tank is empty Refill. Pump is damaged Replace. WARNING DANGER FUEL VAPORS ARE EXTREMELY FLAMMABLE AND MAY CAUSE FIRE AND/OR EXPLOSION. NEVER TEST FOR IGNITION SPARK BY GROUNDING SPARK PLUG NEAR CYLINDER PLUG HOLE, OTHERWISE SERIOUS PERSONAL INJURY MAY RESULT. - 14 STORAGE AFTER USE • Drain remaining liquid out of the chemical tank. • Drain fuel tank, pull starter slowly a few times to • Inspect and adjust every part of the sprayer. drain fuel from carburetor. - Completely clean every part, and repair, if • Pour a small amount of clean motor oil into necessary. spark plug hole, pull starter and crank the en- Apply thin coating of oil on metal parts to pre-gine until the TOP DEAD CENTER. vent rust. • Store in a dry area, free from dust. - Remove spraying hose and pipe. TECHNICAL DATA Dimension L . W . H mm (in.) 330 . 405 . 590 (13.0 . 15.9 . 23.2) Mass and nozzle w/o Spraying hose kg (lb) 7.4 (16.3) Capacity Chemical liquid tank L (gal.US) 19.0 (5.0) Engine Type Displacement Rated speed Carburetor Ignition Spark plug Starter mL (cu.in.) r/min Air cooled, two stroke single cylinder 21.2 (1.3) 7500 ZAMA diaphragm type Flywheel magneto : CDI (Capacitor discharge ignition) system NGK BPM8Y Recoil starter Fuel two Mixing ratio Tank capacity L (fl.oz.US) Mixture of gasoline (unleaded, 89 octane minimum) and specially blended 50 : 1 ECHO cycle engine oil. 0.5 (16.9) Pump Type Discharge volume (Nozzle) Pressure L/min (fl.oz.US/min) MPa kgf/cm2 (psi.) Regenerative pump 0.8 - 7.0 (27 - 236.7) 0.6 - 1.0 6 - 10 (85.3 - 142.2) Nozzle Spraying hose 2-head nozzle* 7.5 mm . (Inner diameter) * Technical data may be changed without advance notice. * Other nozzles are available as optional supply. - 15 WARRANTY STATEMENTS ECHO LIMITED WARRANTY STATEMENT FOR PRODUCT SOLD IN USA AND CANADA BEGINNING 01/01/2010 ECHO'S RESPONSIBILITY ECHO Incorporated’s Limited Warranty, provides to the original purchaser that this ECHO product is free from defects in material and workmanship. Under normal use and maintenance from date of purchase, ECHO agrees to repair or replace at ECHO’s discretion, any defective product free of charge at any authorized ECHO servicing dealer within listed below application time periods, limitations and exclusions. THIS LIMITED WARRANTY IS ONLY APPLICABLE TO ECHO PRODU...