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1.

SPARK PLUG -

 Provides spark to ignite fuel mixture.

2.

SAFETY DECAL - 

Lists important safety precautions.

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.

FUEL TANK

 - Contains fuel and fuel filter.

5.

FUEL TANK CAP -

 Covers and seals fuel tank.

6.

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.

7.

AIR CLEANER - 

Contains replaceable air filter element.

8.

CHOKE  -

 Move lever UP to close choke (

) (starting position) and for emergency stopping. Move DOWN to

open choke (

) (run position).

  9.

PURGE BULB

 - Pumping purge bulb before starting engine draws fresh fuel from the fuel tank, purging air from

the carburetor.  Pump purge bulb until fuel is visible.  Pump purge bulb an additional 4 or 5 times.

10.

SHOULDER HARNESS - 

Used to support unit on operator's back. The straps are adjustable.

11.

HANDLE - 

Used by operator to direct and control air flow.

12.

COMBINATION THROTTLE POSITION / STOP SWITCH BUTTON - 

Controls engine speed and turns

ignition on   or off. Forward position - STOP. First detent position - IDLE. Move button back to increase speed,
forward to decrease speed. Use Throttle Position Button to set and hold blower speed for continuous operation.

13.

THROTTLE TRIGGER -

 Spring - loaded Throttle Trigger controls engine speed. Releasing Trigger returns

engine to speed set by Throttle Position Stop Switch Button. Always release trigger and allow engine to return to
idle before shutting off with Throttle Position Stop Switch Button. Use Throttle Trigger to vary blower speed
settings for intermittent operation.

14.

LOCKING KNOB - 

Allows operator to adjust handle position for optimum comfort and control.

15.

BLOWER PIPES - 

Exclusive positive locking system.

16.

FLEXIBLE PIPE - 

Allows for full range of movement.

Summary of Contents for PB-770H

Page 1: ...erator s Manual MODEL PB 770H PB 770T WARNING Readrulesforsafeoperationandallinstructionscarefully ECHOprovidesthis Operator sManualwhichmustbereadandunderstoodforproperandsafeoperation X753003811 12...

Page 2: ...l 14 StartingColdEngine 16 StartingWarmEngine 17 Stopping Engine 17 OperatingBlower 18 Maintenance 20 Skill Levels 20 Maintenance Intervals 20 Air Filter 21 Fuel Filter 21 Spark Plug 22 Cooling System...

Page 3: ...r clothing and safety gear must be worn when operating a blower SAFETY MANUAL SAFETY SYMBOLS AND IMPORTANT INFORMATION Throughout this manual and on the product itself you will find safety alerts and...

Page 4: ...r 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...

Page 5: ...and arm muscles Immediately stop using all power equipment and consult a doctor if you feel tingling numbness or pain in the fingers hands wrists or arms The sooner RSI CTS is diagnosed the more likel...

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: ...the instructions on them If a decal cannot be read a new one can be ordered from your ECHO dealer See PARTS ORDER ING instructions for specific information P NX505002310 Hot Decal near muffler P N8901...

Page 8: ...osition and for emergency stopping Move DOWN to open choke run position 9 PURGE BULB Pumping purge bulb before starting engine draws fresh fuel from the fuel tank purging air from the carburetor Pump...

Page 9: ...arning Decal located on blower housing P NX505002310 Hot Decal near muffler 74 Category III dB A Measured at 50 ft 15m per ANSI B175 2 P NX508000180 Sound Label located on blower housing PB 770T 1 2 3...

Page 10: ...nk purging air from the carburetor Pump purge bulb until fuel is visible Pump purge bulb an additional 4 or 5 times 10 SHOULDER HARNESS Used to support unit on operator s back The straps are adjustabl...

Page 11: ...aight Pipe w decal __ 1 Operator s Manual __ 1 Warranty Registration Card __ 1 Plastic Bag __ 2 Clamps w screws __ 1 Guide Loop __ 1 Intake cover Power Blower Operator s Manual MODEL PB 770H PB 770T W...

Page 12: ...pe C Stick handle F should be angled away from operator 7 Position stick handle F over metal plate on swivel pipe and adjust for comfortable operation Tighten wing nut E NOTE Ground lead of stick hand...

Page 13: ...ble pipe B 6 Assemble flexible pipe B to elbow D on blower Position guide loop G on outside of flexible pipe away from blower and tighten clamp A NOTE A light lubricant may be used to ease assembly of...

Page 14: ...o brand premium Power Blend XTM Universal 2 Stroke Oil meets these standards Engine problems due to inadequate lubrication caused by failure to use an ISO L EGD ISO CD 13738 and J A S O M345 FC FD cer...

Page 15: ...y 30 days ninety 90 days when a fuel stabilizer is added IMPORTANT Stored two stroke fuel may separate ALWAYS shake fuel container thoroughly before each use HandlingFuel DANGER Fuel is VERY flammable...

Page 16: ...t position 3 Purge Bulb Pump purge bulb D until fuel is visible Pump bulb an additional 4 or 5 times 4 Recoil Starter Pull recoil starter handle E until engine fires or a maximum of 5 pulls 5 Choke Af...

Page 17: ...rt procedures STOPPING ENGINE PB 770H 1 Throttle Lever Move throttle lever A to IDLE DETENT position and allow engine to return to idle before shutting off engine 2 Throttle Lever Move throttle lever...

Page 18: ...lower at lower speeds and by dampening material with water mist when necessary Keep debris on your property Be Smart be a good neighbor WARNING Always wear safety glasses hearing protection a face fil...

Page 19: ...R S MANUAL Cold Weather Operation 1 Remove back cushion A from frame 2 Install intake cover B on frame over air intake 3 Install back cushion A to frame over intake cover NOTE Blower performance may b...

Page 20: ...emoving 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 MAINTENANCE PROCEDUR...

Page 21: ...turated 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 clea...

Page 22: ...3 Adjust spark plug gap by bending outer electrode 4 Tighten spark plug to 150 170 kgf cm 130 150 in lbf 0 65mm 0 026in FUEL FILTER Level 1 Tools required 200 250 mm 8 10 in length of wire with one en...

Page 23: ...g 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...

Page 24: ...n cleaning the exhaust port Do not allow carbon particles to enter the cylinder A B EXHAUST SYSTEM Spark Arrestor Screen Level 2 Tools required Torx L Wrench T27 Parts Required Spark arrestor screen G...

Page 25: ...Idle speed can be adjusted as required HighAltitudeOperation This engine has been factory adjusted to maintain satisfactory starting emission and durability performance up to 1 100 feet above sea leve...

Page 26: ...for one minute 2 Complete warm up by running at full throttle for 5 minutes operating choke twice to clear air from carburetor chambers 3 Check idle speed and reset if necessary If a tachometer is av...

Page 27: ...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 u...

Page 28: ...tch in 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 Dra...

Page 29: ...mm 0 026 in Exhaust System Spark arrestor muffler or spark arrestor muffler with catalyst Fuel 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...

Page 30: ...or non income producing use will be covered by this limited warranty for YH HDUV from date of purchase EXCEPTIONS RU WZR VWURNH HQJLQH SRZHUHG SURGXFWV WKH HOHFWURQLF LJQLWLRQ PRGXOH H LEOH GULYH FDE...

Page 31: ...hments QFRUUHFW VWRUDJH SURFHGXUHV VWDOH IXHO LQFOXGLQJ IDLOXUH WR SURYLGH RU SHUIRUP UHTXLUHG PDLQWHQDQFH VHUYLFHV DV SUHVFULEHG LQ WKH RSHUDWRU V manual Preventative maintenance as outlined in the o...

Page 32: ...t 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 conform with...

Page 33: ...33 POWER BLOWER OPERATOR S MANUAL NOTES...

Page 34: ...34 NOTES...

Page 35: ...35 POWER BLOWER OPERATOR S MANUAL NOTES...

Page 36: ...application operation or maintenance of this product you may call 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 Bef...

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