Echo PB-755T Operator'S Manual Download Page 22 | Manualshive

Page: 22 / 32

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22

CoolInG

sysTem

Level 2.

Tools required:

25 - 50mm (1 - 2 in.) cleaning brush, Cross Head

Screwdriver

Parts Required:

None, if you are careful.

IMPORTANT

To maintain proper engine operating temperatures, cooling air must

pass freely through the cylinder fin area. This flow of air carries com

-

bustion 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.

Cleaning Grill

1. Remove accumulated debris from intake grill between backpack

frame and blower housing.

Cleaning Cylinder Fins

1. Remove spark plug and engine cover (four screws), pull cover

away from engine.

2. Clean cylinder fins (A) to allow cooling air to pass freely.

3. Install engine cover and spark plug.

A

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Summary of Contents for PB-755T

Page 1: ...anual MODEL PB 755H PB 755T WARNING Read rules for safe operation and all instructions carefully ECHO provides this Op erator s Manual which must be read and understood for proper and safe operation X7531122402 X753002812 12 08 ...

Page 2: ...g Information 32 Parts Serial Number 32 Service 32 ECHO Consumer Product Support 32 Warranty Card 32 Additional or Replacement Manuals 32 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 may include optional equipment and accessories and may not include all standard e...

Page 3: ...G The safety 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 specific action shown is prohibited Ignoring these prohi bitions can result in serious or fatal injury CAUTION The safety alert symbol accompanied by the word CAUTION calls attention to an a...

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 are cooler Vibration and Cold It is believed that a condition called Raynaud s Phenomenon which affects the fingers of certain individuals may be brought about by exposure to vibration and cold Expos...

Page 5: ...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 ...

Page 6: ...ries 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 DO NOT start or operate unit unless all guards and protective covers are properly assembled to unit NEVER reach into any opening while the engine is running Moving parts ...

Page 7: ...truc 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 5 6 P N 89016006361 Hot Decal near muffler P N 89016009461 74 Category III dB A Measured at 50 ft 15m per ANSI B175 2 P N X508000180 General Warning Decal located on top of blower housing Sound Label located on blower housing 13 14 11 12 ...

Page 8: ...mp purge bulb an additional 4 or 5 times 7 RECOIL STARTER HANDLE Pull recoil handle slowly until starter engages then quickly and firmly When engine starts return handle slowly DO NOT let handle snap back or damage to unit will occur 8 FUEL TANK Contains fuel and fuel filter 9 FUEL TANK CAP Covers and seals fuel tank 10 HANDLE Rotates downward for throttle control access Spring loaded for flexible...

Page 9: ...al cannot be read a new one can be ordered from your ECHO dealer See PARTS ORDERING instructions for specific information P N 89016006361 Hot Decal near muffler P N 89016009461 74 Category III dB A Measured at 50 ft 15m per ANSI B175 2 P N X508000180 General Warning Decal located on top of blower housing Sound Label located on blower housing 3 2 1 10 4 11 12 6 7 14 17 16 13 15 5 8 9 ...

Page 10: ...ngine draws fresh fuel from the fuel tank purging air from the carburetor Pump purge bulb until fuel is visible and flows freely in the clear fuel tank return line Pump purge bulb an additional 4 or 5 times 8 FUEL TANK Contains fuel and fuel filter 9 FUEL TANK CAP Covers and seals fuel tank 10 BLOWER PIPES Exclusive positive locking system 11 THROTTLE POSITION LEVER Pull back to increase engine sp...

Page 11: ...Plastic Bag ___ 2 Clamps w screws ___ 1 Stick Handle ___ 1 Bolt 6x45 ___ 1 Washer 6 ___ 1 Wing nut ___ 1 Echo Power Blend X TM 2 stroke oil sample PB 755T ___ 1 Power Head ___ 1 Flex Pipe ___ 1 Pipe w swivel ___ 1 Straight Pipe ___ 1 Straight Pipe ___ 1 Operator s Manual ___ 1 Warranty Registration Card ___ 1 ECHO Emissions and Warranty Statement ___ 1 Plastic Bag ___ 2 Clamps w screws ___ 1 Guide...

Page 12: ...dle clamp with tabs G 6 Slide stick handle onto swivel pipe C Stick handle should be angled away from operator 7 Position stick handle H for comfortable operation and tighten wing nut E 8 Assemble straight pipe I onto swivel pipe C until you feel light resistance Do not force connection Hold swivel pipe and turn straight pipe clockwise engaging positive locking channels until connection is firm Do...

Page 13: ...in pipe 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 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 7 Move handle E to desired position Tighten knob H hand tight 8 Assemble straight pipe I onto swivel pipe C until you feel...

Page 14: ...alternative fuels may cause performance prob lems 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 carbu retors and other engine components Fuel Requirements Gasoline Use 89 Octane R M 2 mid grade or higher gasoline known to be good qualit...

Page 15: ...s and flames IMPORTANT Stored fuel ages Do not mix more fuel than you expect to use in thirty 30 days ninety 90 days when a fuel stabilizer is added IMPORTANT Stored two stroke fuel may separate ALWAYS shake fuel con tainer thoroughly before each use Handling Fuel DANGER Fuel is VERY flammable Use extreme care when mixing storing or handling or serious personal injury may result Use an approved fu...

Page 16: ...o run position PB 755H PB 755T 2 Choke Move choke C up to Cold Start position 3 Purge Bulb Pump purge bulb D until fuel is visible and flows freely in the clear fuel tank return line Pump bulb an additional 4 or 5 times 4 Recoil Starter Pull recoil starter handle E until engine fires 5 or 6 pulls maxi mum 5 Choke Move choke C down to run position and if necessary restart engine NOTE If engine does...

Page 17: ...H 1 Throttle Lever Move throttle lever A to idle detent position and allow engine to return to idle before shutting off engine 2 Move throttle lever A to O Stop position PB 755T 1 Throttle Trigger Throttle Position Lever Release throttle trigger C Move throttle position lever A forward to idle position and allow engine to return to idle before shutting engine off 2 Stop Switch Slide stop switch B ...

Page 18: ...igher speed 4 Use lower speed to blow dry leaves from walks patios and drives 5 Additional speed may be necessary to clean grass and leaves from a lawn or flower bed 6 Higher speed may be necessary to move gravel dirt snow bottles or cans from a driveway street parking lot or stadium NOTE Never use a higher speed setting than necessary to perform a task Remember the higher the engine speed the lou...

Page 19: ...ng obstructions clearing debris or servicing unit Allow unit to cool before performing service Wear gloves to protect hands from sharp edges and hot surfaces maintenance intervals COMPONENT SYSTEM MAINTENANCE PROCEDURE REQ D SKILL LEVEL DAILY OR BEFORE USE EVERY REFUEL 3 MONTHS OR 90 HOURS YEARLY 600 HOURS Air Filter Inspect Clean 1 I C R Choke Shutter Inspect Clean 1 I C Fuel Filter Inspect Repla...

Page 20: ... or other damage Air filter element is saturated with dirt Air filter element is soaked with fuel mix 6 If air filter is in good condition and can be cleaned and reused lightly brush debris from air filter element or blow filter element clean using low pressure 40 psi or less compressed air directed at inside of filter IMPORTANT When using compressed air always direct air stream at inside sur face...

Page 21: ...fuel line and filter from the tank 3 Remove the filter from the line and install the new filter spark plug Level 1 Tools required 19mm Spark Plug deep socket Feeler gauge Parts Required RepowerTM Tune Up Kit IMPORTANT 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 2 Clean the plug...

Page 22: ...m 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 Cleaning Grill 1 Remove accumulated debris from intake grill between backpack frame and bl...

Page 23: ...ult IMPORTANT Carbon deposits in muffler will cause a drop in engine output and overheating Spark arrestor screen must be checked periodically 1 Remove spark plug and engine cover four screws 2 Remove spark arrestor covers A gaskets B and spark arrestor screen C from muffler Replace screen if plugged with carbon deposits NOTE When cleaning carbon deposit be careful not to damage the cata lytic ele...

Page 24: ...sits 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 particles to enter the cylinder 4 Inspect muffler gasket and replace if damaged 5 Install muffler gasket and muffler 6 Tighten muffler mounting bolts or nuts to 80 95 in lbf 90 110 kgf cm 7 Start engine and...

Page 25: ... the carburetor must be re adjusted when operating the engine below 1 100 feet MSL otherwise severe engine damage can result Level 2 Tools required Screwdriver tachometer Echo P N 99051130017 Parts required None NOTE Do not adjust carburetor unless necessary If you have difficulty see your ECHO dealer Before Adjustment Check that Air filter is clean and properly installed Spark arrestor screen is ...

Page 26: ... 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 u r e n i g n E r o s e i d t u b t o n s e o d e t a r e l e c c a y l r e p o r p r e t l i f r i A y t r i d r e t l i f r i A r a e w l a m r o N e c a l p e r r o n a e l C r e t l i f l e u F y t r i d r e t l...

Page 27: ...r when storing otherwise serious property damage or personal injury may result Long Term Storage Over 30 Days Do not store your unit for a prolonged period of time 30 days or longer without performing protective storage mainte nance which includes the following 1 Store unit in a dry dust free place out of the reach of children 7 Remove the spark plug and pour 7cc 1 4 oz of fresh clean ECHO 2 strok...

Page 28: ...uel Mixed Gasoline and Two stroke Oil Fuel Oil Ratio 50 1 Power Blend X TM ISO L EGD ISO CD 13738 and J A S O M345 FC FD two stroke air cooled engine oil Gasoline Use 89 Octane unleaded Do not use fuel containing methyl alcohol more than 10 ethyl alcohol or 15 MTBE Do not use alternative fuels such as E 20 or E 85 Oil Power Blend X TM Premium Universal 2 Stroke Oil Fuel Tank Capacity 2 0 lit 67 7 ...

Page 29: ...29 Power Blower Operator s Manual notes ...

Page 30: ...30 notes ...

Page 31: ...31 Power Blower Operator s Manual notes ...

Page 32: ... the ECHO Consumer Product Support Department at 1 800 673 1558 from 8 30 am to 4 30 pm Central Standard Time Monday through Friday Before calling please know the model and serial number of your unit to help your Consumer Product Support Representative warranty registration To ensure trouble free warranty coverage it is important that you regis ter your Echo equipment on line at www echo usa com O...

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