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18

Cleaning Cylinder Fins

  1.  Remove engine cover (two screws), pull cover away from engine.  

Clean cylinder fins to allow cooling air to pass freely.

  2.  Loosely reassemble engine cover with two screws.

  3.  Tighten all screws securely.

 

exhausT

 

sysTem

Spark Arrestor Screen

Level 2.

Tools required:

    Cross Head Screwdriver, 4 mm Hex Wrench, Soft    

 

 

 

metal brush 

Parts Required: 

  Spark arrestor screen, Gasket

 

 

 

 

IMPORTANT

  

Carbon deposits in muffler will cause a drop in engine output and 

overheating.  Spark arrestor screen must be checked periodically.

  1.  Remove two engine cover screws and remove cover from engine.  

Clean cylinder fins with brush to allow cooling air to pass freely.

  2.  Remove spark arrestor cover (A), deflector (B), plate (C), gasket 

(D), and spark arrestor screen (E) from muffler.  Replace screen if 

plugged with carbon deposits.

NOTE

When cleaning carbon deposit, be careful not to damage the cata-

lytic element inside muffler.

  3.  Install spark arrestor screen, gasket, plate, deflector, and cover.

  4. 

Install engine cover or muffler cover and attach spark plug lead.

  5.  Tighten all screws securely.

a

B

D

C

E

Summary of Contents for PB-251 - 11-09

Page 1: ...r s Manual MODEL PB 251 X750009765 11 09 X7501180005 warning Read rules for safe operation and instructions carefully ECHO provides this Operator s Manual which must be read and understood for proper...

Page 2: ...ement Manuals 28 Specifications descriptions and illustrative material in this literature are as accurate as known at the time of publica tion but are subject to change without notice Illustrations ma...

Page 3: ...alert symbol accompanied by the word WARNING calls attention to an act or condi tion which CAN lead to serious personal injury or death if not avoided Circle and slash symbol This symbol means the sp...

Page 4: ...with cap or net Hot Humid Weather Heavy protective clothing can increase operator fatigue which may lead to heat stroke Schedule heavy work for early morning or late afternoon hours when temperatures...

Page 5: ...r operation 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 t...

Page 6: ...mplete stop before removing obstructions clearing debris or servicing unit DO NOT start or operate unit unless all guards and protective covers are properly assembled to unit NEVER reach into any open...

Page 7: ...cal cannot be read a new one can be ordered from your ECHO dealer See PARTS ORDERING instructions for specific information P N X505002310 P N X505002080 65 Category I dB A Measured at 50 ft 15m per AN...

Page 8: ...OLD START to close choke for cold starting Move choke lever to RUN position to open choke 10 PURGE BULB Pumping purge bulb before starting engine draws fresh fuel from the fuel tank purging air from t...

Page 9: ...blower pipe into fan case so that line F meets locking ring C rotate locking ring clockwise 1 8 turn to lock upper blower pipe in place 5 Align tabs H with grooves G and slide lower blower pipe over u...

Page 10: ...is 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 fue...

Page 11: ...ALWAYS fill fuel tanks outdoors over bare ground DO NOT overfill fuel tank Wipe up spills immediately Securely tighten fuel tank cap and close fuel container after refueling Inspect for fuel leakage I...

Page 12: ...ort pulls only 1 2 2 3 of rope for start ing Do not allow the rope to snap back in Always hold the unit firmly 5 Recoil Starter Place the unit on a flat clear area Firmly grasp throttle grip with left...

Page 13: ...pidly pull recoil starter handle rope E until en gine fires IMPORTANT Recoil starter Use short pulls only 1 2 2 3 of rope for start ing Do not allow the rope to snap back in Always hold the unit firml...

Page 14: ...riate hours 2 Allow the engine to warm up at a fast idle for a few minutes 3 Control engine speed with throttle trigger F or for continu ous use set engine speed with throttle position lever B Rotate...

Page 15: ...e 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 COMPONENT SYSTEM MAINT...

Page 16: ...he rubber sealing edges are deformed 4 If filter can be reused be certain it Fits tightly in the air filter cavity Is installed with the original side out 5 Install air filter cover fuel filter Level...

Page 17: ...he 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 warr...

Page 18: ...rop in engine output and overheating Spark arrestor screen must be checked periodically 1 Remove two engine cover screws and remove cover from engine Clean cylinder fins with brush to allow cooling ai...

Page 19: ...deposits from cylin der exhaust port IMPORTANT Never use a metal tool to scrape carbon from the exhaust port Do not scratch the cylinder or piston when cleaning the exhaust port Do not allow carbon p...

Page 20: ...ting the engine below 1 100 feet ASL otherwise severe engine damage may result Level 2 Tools required Screwdriver tachometer Echo P N 99051130017 Parts required None NOTE Every unit is run at the fact...

Page 21: ...r a c h t i w d e r e v o C l e u f h t i w d e l u o F e v i t c e f e d g u l P n i 6 2 0 0 m m 5 6 o t t s u j d A e c a l p e r r o n a e l C e c a l p e r r o n a e l C g u l p e c a l p e R s n...

Page 22: ...n the STOP position 3 Remove accumulation of grease oil dirt and debris from exterior of unit 4 Perform all periodic lubrication and services that are required 5 Tighten all screws and nuts 6 Drain th...

Page 23: ...rrestor muffler with catalyst Fuel Mixed Gasoline and Two stroke Oil Fuel Oil Ratio 50 1 Power Blend X ISO L EGD ISO CD 13738 and J A S O M345 FC FD two stroke air cooled engine oil Gasoline Use 89 Oc...

Page 24: ...PTIONS For two stroke engine powered products the electronic ignition module flexible drive cables SRM solid drive shafts and TC tines are warranted for the life of the product on parts only Cutting a...

Page 25: ...Incorrect storage procedures stale fuel including failure to provide or perform required maintenance services as prescribed in the operator s manual Preventative maintenance as outlined in the operato...

Page 26: ...ned built and equipped to conform with applicable EPA and C A R B emissions standards and that your equipment SORE is free from defects in material and workmanship that would cause it to fail to confo...

Page 27: ...27 Power Blower Operator s Manual notes...

Page 28: ...presenting your unit for Warranty service repairs proof of purchase is required echo consumer product support If you require assistance or have questions concerning the applica tion operation or maint...

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