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Power Blower
Operator's Manual
MODEL PB-620ST
WARNING
Read rules for safe operation and all instructions carefully. ECHO provides this
Operator's Manual, which must be read and understood for proper and safe opera-
tion.
X753003741
X7531123401
11/09
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2 Introdu Ct Ino Welcome to the ECHO family. This ECHO product was designed and manufactured to provide long life and on-the- job dependability. Read and understand this manual. You will find it easy to use and full of helpful operating tips and SAFETY messages. eth ort porae 's umanal Read and understand this manual before operation. Keep it in a safe place for future reference. It contains specifications and information for operation, starting, stopping, maintenance, storage, and assembl
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Power Belowr 3 o P or t era 's Manual s afety mnuala tafeys symbols dan I atn tropm I t ormafn Ion Throughout this manual and on the product itself, you will find safety alerts and helpful, informational messages pre- ceded by symbols or key words. The following is an explanation of those symbols and key words and what they mean to you. CIRCLE AND SLASH SYMBOL DANGER This symbol means the specific action The safety alert symbol accompanied by the word shown is prohibited. Ignoring these
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4 Physical Condition Your judgment and physical dexterity may not be good: • if you are tired or sick, • if you are taking medication, • if you have taken alcohol or drugs. Operate unit only if you are physically and mentally well. Eye Protection Wear eye protection that meets ANSI Z87.1 or CE requirements whenever you operate the unit. Hand Protection Wear no-slip, heavy-duty work gloves to improve your grip on the blower handle. Gloves also
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Power Blower 5 o P or t era 's Manual Repetitive Stress Injuries It is believed that overusing the muscles and tendons of the fingers, hands, arms, and shoulders may cause soreness, swelling, numbness, weakness, and extreme pain in those areas. Certain repetitive hand activities may put you at a high risk for developing a Repetitive Stress Injury (RSI). An extreme RSI condition is Carpal Tunnel Syndrome (CTS), which could occur when your wrist swells and squeezes a vital nerve that runs thr
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6 que Inpmet Ceh Ck WARNING Use only ECHO approved attachments. Serious injury may result from the use of a non-approved attachment com- bination. ECHO, INC. will not be responsible for the failure of cutting devices, attachments or accessories which have not been tested and approved by ECHO. Read and comply with all safety instructions listed in this manual and safety manual. • Check unit for loose/missing nuts, bolts and screws. Tighten and/or replace as needed.
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Power Blower 7 o P ro t rea 's Maanul d se Cr Ipt Ino Locate the safety decals on your unit. Make sure the decals are legible and that you understand and follow the instruc- tions on them. If a decal cannot be read, a new one can be ordered from your ECHO dealer. See PARTS ORDERING instructions for specific information. 7 Hot Decal (near muffler) 1 2 6 P/N X505002310 3 8 9 5 4 12 13 11 10 14 15 General Warning Decal (located on top of blower housing) P/N 89016009461 Return to Idle P/N X50500
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8 1. SAFETY DECAL - Lists important safety precautions. 2. SPARK PLUG - Provides spark to ignite fuel mixture. 3. SPARK ARRESTOR MUFFLER OR SPARK ARRESTOR MUFFLER WITh CATALYST - The muffler or catalytic muffler controls exhaust noise and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler. Keep exhaust area clear of flammable debris. 4. RECOIL STARTER hANDLE - Pull recoil handle slowly until starter engages, then quickly and firmly. When
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Power Blower 9 o P ro t rea 's Muanal Contetns ____ 1 - Power Head ____ 1 - Flex Pipe ____ 1 - Pipe w/swivel ____ 1 - Straight Pipe ____ 1 - Straight Pipe w/decal ____ 1 - Operator's Manual ____ 1 - Warranty Registration Card ____ 1 - Plastic Bag ____ 2 - Clamps w/screws ____ 1 - Guide Loop a y lbmess WARNING Never perform maintenance or assembly procedures with engine running or serious personal injury may result. G G I lla tsn oweblr p Isep 1. Place guide loop (G) across elbow
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10 5. Assemble flexible pipe (B) to elbow (D) on blower and tighten clamps (A). Position guide loop (G) on inside (blower side) of flexible tube. NOTE G A light lubricant may be used to ease assembly of flexible pipe to blower elbow. 6. Clip throttle cable into throttle cable guide loop (G). E 7. Move handle (E) to desired position. Tighten knob (H) hand tight. 8. Assemble straight pipe (I) onto swivel pipe (C), until you feel light H resistance. Do not force connection. Hold swivel pipe an
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Power Blower 11 o P or t era 's Manual WARNING Alternative fuels, such as E-15 (15% ethanol), E-85 (85% ethanol) or any fuels not meeting ECHO requirements are NOT approved for use in ECHO 2-stroke gasoline engines. Use of alternative fuels may cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement. Alternative fuels may also cause premature deterioration of fuel lines, gaskets,
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12 After use • DO NOT store a unit with fuel in its tank. Leaks can occur. Return IMPORTANT unused fuel to an approved fuel storage container. Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30) Storage - Fuel storage laws vary by locality. Contact your local gov- days, ninety (90) days when a fuel sta- ernment for the laws affecting your area. As a precaution, store fuel in bilizer is added. an approved, airtight container. Store in a w
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Power Bwlore 13 o P ro t rae 's Manual rat st Ing mar w eng Ine The starting procedure is the same as Cold Start except DO NOT close the choke. A 1. Throttle Position/Stop Switch Button Slide Throttle Position /Stop Switch Button (A) back to idle posi- tion (first detent away from stop position). 2. Purge Bulb Pump purge bulb (C) until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an additional 4 or 5 times. 3. Recoil Starter Pull recoil starter handle (D)
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14 t arepo Ign rewobl WARNING Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause unconsciousness, serious in- jury, or death. Exhaust can cause serious burns. ALWAYS position unit so that exhaust is directed away from your face and body. WARNING Always wear safety glasses, hearing protection, a face filter mask, and take all safety precautions, or serious personal injury may result. Do not point the blower pipe in the direction of p
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Power Blower 15 o P or t era 's Manlau m a Intenan Ce WARNING Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop before removing obstructions, clearing debris, or servicing unit. Allow unit to cool before performing service. Wear gloves to protect hands from sharp edges and hot surfaces. Your ECHO blower is designed
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16 a Ir f I ter l Level 1. Tools required: 25 - 50 mm (1 - 2 in.) Cleaning brush. TM Parts required: REPOWER Tune Up Kit NOTE Clean daily. 1. Close choke (Cold Start Position ( ). This prevents dirt from entering the carburetor throat when the air filter is removed. Brush accumulated dirt from air cleaner area. 2. Remove air filter cover. Brush dirt from inside cover. 3. Remove air filter and lightly brush debris from filter. Replace filter if it is damaged, fuel soaked, very dir
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Power Blower 17 o P ro t aer 's Mlanua ark sp pgul Level 1. Tools required: 19 mm Spark Plug deep socket, feeler gauge TM Parts Required: REPOWER Tune Up Kit IMPORTANT Use only NGK BPM-8Y spark plug (BPMR-8Y in Canada) other- wise severe engine damage may occur. 1. Remove spark plug, and check for fouling, and worn or rounded center electrode. 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 bendi
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18 Cleaning Cylinder Fins A 1. Disconnect spark plug lead (A), and pull lead out of upper cover C clamp and lower cover clamp. B 2. Remove 5 screws and remove engine cover (B). 3. Clean cylinder fins (C) to allow cooling air to pass freely. exhaust smsyte Spark Arrestor Screen Level 2. Tools required: Cross head screwdriver, soft metal brush Parts Required: Spark arrestor screen, Gaskets (3) IMPORTANT Carbon deposits in muffler will cause a drop in engine output and overheating. S
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Power Blower 19 o P or t era 's Manlau Exhaust Port Cleaning Level 2. Tools required: 4 & 5 mm Hexagon wrench, Cross head screwdriver, Wood or plastic scraper Parts Required: As needed: Heat Shield 1. Remove spark plug lead from spark plug, and remove engine or A muffler cover (5 screws). B 2. Place piston at top dead center. Remove muffler (A) gasket (B), C and heat shield (C). 3. Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port. IMPORTANT Never use a m
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20 Cor buretar edtustmnaj Engine Break-In New engines must be operated for a minimum duration of two tanks of fuel before carburetor adjustments can be made. During the break-in period your engine performance will increase and exhaust emissions will stabilize. Idle speed can be adjusted as required. High Altitude Operation This engine has been factory adjusted to maintain satisfactory starting, emission, and durability performance up to 1,100 feet above sea level (ASL) (96.0 kPa). To maint
