Echo HC-152 specifications Spark Plug, Cooling System

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MAINTENANCE

HC-152

 

 

Spark Plug

Level 2.

Parts Required: REPOWERTM Tune-Up Kit

Use only NGK BPM-8Y spark plug (BPMR-8Y in Canada) otherwise severe engine damage may occur.

1.Remove spark plug and check for fouling, worn and rounded center electrode.

0.65mm

(0.026 in.)

2.Clean the plug or replace with a new one. DO NOT sand blast to clean. Remaining sand will damage engine.

3.Adjust spark plug gap by bending outer electrode.

4.Tighten spark plug to 150-170 kgf • cm (130-150 in • lbf).

Cooling System

Level 2.

Parts Required: None if you are careful.

To maintain proper engine operating temperatures, cooling air must pass freely through the cylinder fin area. This flow of air carries combustion heat away from the engine.

Overheating and engine seizure can occur when:

Air intakes are blocked, preventing cooling air from reaching the cylinder.

Dust and grass build up on the outside of the cylinder. This build up insulates the engine and prevents the heat from leaving.

Removal of cooling passage blockages or cleaning of cooling fins is considered “Normal Maintenance.” Any failure attributed to lack of maintenance is not warranted.

1.Remove spark plug lead.

2.Remove engine cover (A).

3.Use brush to remove dirt from the cylinder fins.

A

DO NOT use a metal scraper to remove dirt from the cylinder fins.

4. Assemble components in reverse order.

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© 4/2013 ECHO Inc.

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Contents Operator’s Manual Table of Contents Introduction Servicing InformationAdditional or Replacement Manuals SafetyManual Safety Symbols and Important Information International Symbols Personal Condition and Safety EquipmentHot Humid Weather Proper ClothingVibration and Cold Clear the Work Area Repetitive Stress InjuriesRead the Manuals Keep a Firm GripEquipment Avoid Hot SurfacesEPA 2010 and Later and/or C.A.R.B. Tier Emission Control Exhaust & EvaporativeProduct Emission Durability Emission Compliance Period Description Description Contents Install Blade Guard AssemblyRemove Blade Guard Assembly Fuel Requirements OperationFuel Handling FuelOperation Starting Cold EngineChoke Starting Warm Engine Stopping Engine Hedge Trimming Maintenance Intervals MaintenanceSkill Levels Air Filter Fuel FilterSpark Plug Cooling SystemExhaust System Exhaust Port CleaningSpark Arrestor Screen Engine Break-In Carburetor AdjustmentHigh Altitude Operation Blades LubricationGear Box Blades Sharpening LevelAdjustment Level Troubleshooting Engine Problem Troubleshooting ChartStorage Long Term Storage Over 30 DaysSpecifications ModelWarranty Statements OWNER’S ResponsibilityWarranty Statements HC-152 HC-152 HC-152 S94111001001/S94111999999