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PB-770 H/T

TROUBLESHOOTING

X7531125807

TROUBLESHOOTING

Fuel vapors are extremely flammable and may cause fire and/or
explosion. Never test for ignition spark by grounding spark plug
near cylinder plug hole, otherwise serious personal injury may
result.

ENGINE PROBLEM TROUBLESHOOTING CHART

Problem

Check

Status

Cause

Remedy

Engine
starts
hard
or Engine
does not
start

Fuel at
carburetor

No fuel at
carburetor

Fuel strainer or
fuel line
obstructed

Clean or replace

See your dealer

Engine
starts
hard

Engine
does not
start

Fuel at
cylinder

No fuel at
cylinder

Carburetor

See your dealer

Muffler wet
with fuel

Fuel mixture
too rich

OPEN choke

Clean or replace
air filter

Adjust carburetor

See your dealer

Spark at
end of plug
wire

No spark

Ignition at
STOP position

Electrical prob-
lem

Interlock switch

Move ignition
away from STOP
position.

See your dealer

Spark at
plug

Incorrect gap -
Covered with
carbon -
Fouled with
fuel - Plug
defective

Adjust to
0.65mm (0.026
in.)

Clean or replace
plug

Содержание PB-770 H

Страница 1: ...e exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Read and understand all provided literature before use Failure...

Страница 2: ...Exhaust Evaporative 14 CARB And EPA Emissions Control Information 14 Description 15 Contents 19 Assembly 20 Install Blower Pipes Stick Handle 20 Install Blower Pipes 21 Operation 23 Fuel 24 Starting C...

Страница 3: ...operation maintenance storage and assembly specific to this product Scan QR codes for more information For additional literature including safety manuals where applicable or questions regarding terms...

Страница 4: ...application operation or maintenance of this product call the ECHO Consumer Product Support Department at 1 800 432 ECHO 3246 from 8 00 am to 5 00 pm Central Standard Time Monday through Friday Before...

Страница 5: ...onal injury or death if not avoided The safety alert symbol accompanied by the word WARNING calls attention to an act or condition which CAN lead to serious personal injury or death if not avoided The...

Страница 6: ...h Speed Mixture Wear Eye Ear and Head Protection Carburetor Adjustment Idle Speed Wear Hand Protection Carburetor Adjustment Low Speed Mixture Safety Alert Emergency Stop Hot Surface Fuel and Oil Mixt...

Страница 7: ...ov The muffler or catalytic muffler and surrounding cover may become extremely hot Always keep clear of exhaust and muffler area otherwise serious personal injury may occur Choke Control RUN Position...

Страница 8: ...l face shield may be worn over safety glasses or goggles to provide protection from sharp branches or flying debris Hand Protection Wear sturdy no slip rubber work gloves to improve your grip on the h...

Страница 9: ...rease operator fatigue which may lead to heat stroke Schedule heavy work for early morning or late afternoon hours when temperatures are cooler The components of this machine generate an electromagnet...

Страница 10: ...ollowed by whitening and loss of feeling consult your physician before further exposing yourself to cold and vibration Repetitive Stress Injuries RSI It is believed that overusing the muscles and tend...

Страница 11: ...cause serious injury or death Read the Manual Provide all users of this equipment with literature for instructions on safe operation Clear the Work Area Clear the area of children bystanders and pets...

Страница 12: ...o not use blower if any part is missing or damaged Have repairs done only by an authorized service dealer Moving parts can amputate fingers or cause severe injuries Keep hands clothing and loose objec...

Страница 13: ...uel line emission control system is EVAP evaporative emissions Evaporative emissions for California models are only applicable to fuel tanks and fuel feed lines An Emission Control Label is located on...

Страница 14: ...y decal s on your unit Make sure the decal s is legible and that you understand and follow the instructions on it If a decal cannot be read a new one can be ordered from your ECHO dealer The safety de...

Страница 15: ...ke 2 Purge Bulb 3 Recoil Starter Handle 4 Spark Plug 5 Air Cleaner 6 Safety Decal 7 Spark Arrestor Muffler with or without Catalyst 8 Fuel Tank 9 Fuel Tank Cap 10 Shoulder Harness 11 Stick Handle 12 T...

Страница 16: ...s on your unit Make sure the decal s is legible and that you understand and follow the instructions on it If a decal cannot be read a new one can be ordered from your ECHO dealer The safety decal is f...

Страница 17: ...ke 2 Purge Bulb 3 Recoil Starter Handle 4 Spark Plug 5 Shoulder Harness 6 Safety Decal 7 Handle 8 Locking Knob 9 Blower Pipes 10 Flexible Pipe 11 Spark Arrestor Catalytic Muffler Muffler 12 Fuel Tank...

Страница 18: ...tailer or ECHO Dealer of damaged or missing parts Use the contents list to check for missing parts PB 770 H PB 770 T 1 Power Head 1 Flex Pipe 1 Pipe w swivel 1 Straight Pipe 1 Straight Pipe w decal 1...

Страница 19: ...result Install Blower Pipes Stick Handle 1 Assemble clamps A onto both ends of flexible pipe B 2 Assemble swivel pipe C into flexible pipe B and tighten clamp A 3 Insert anti static wire through flexi...

Страница 20: ...on Hold swivel pipe and turn straight pipe clockwise engaging positive locking channels until connection is firm Do not force connection 9 Assemble straight pipe with decal K to straight pipe J as in...

Страница 21: ...Note Hang handle freely from blower to assure throttle cable is not twisted before installing handle E 4 Position throttle cable along the outside of elbow Loosen knob H on handle E Align notches in h...

Страница 22: ...ways 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 Blower housing may contain shredder bl...

Страница 23: ...apor lock and unintended machine operation including but not limited to improper clutch engagement Diesel or alternative fuels may also cause premature deterioration of fuel lines gaskets carburetors...

Страница 24: ...g AVOID repeated or prolonged skin contact AVOID inhaling oil mists or vapors ECHO branded 2 stroke oils may be mixed at 50 1 ratio for application in all ECHO engines sold in the past regardless of r...

Страница 25: ...the proper amount of 2 stroke oil to gasoline 3 Close container and shake to mix oil with gasoline 4 Add remaining gasoline close fuel container and remix Spilled fuel is a leading cause of hydrocarbo...

Страница 26: ...firmly PB 770H Rotate spring loaded throttle arm downward to a comfortable operating position 1 Throttle Position Lever Move throttle position lever A to IDLE position 2 Choke Move choke C UP to COLD...

Страница 27: ...e position lever gradually to increase engine RPM to desired operating speed Starting Warm Engine The starting procedure is the same as Cold Start except DO NOT close the choke v 1 Throttle Position L...

Страница 28: ...Lever Move Throttle Position Lever A all the way forward to STOP position If engine does not stop when stop switch is moved to STOP position close choke COLD START position to stall engine Have your d...

Страница 29: ...1 Use only during appropriate hours Contact your local government for the ordinances affecting your area 2 To reduce sound levels limit the number of pieces of equipment used at any one time 3 Allow t...

Страница 30: ...he louder the blower noise For Operator Comfort in Cold Weather Operation This product should not be used in temperatures below 15 F 9 C otherwise damage to the fuel lines may occur 1 Remove back cush...

Страница 31: ...it is designed to provide many hours of trouble free service Regular scheduled maintenance will help your unit achieve that goal If you are unsure or are not equipped with the necessary tools we recom...

Страница 32: ...wear during inspection COMPONENT SYSTEM MAINTENANCE PROCEDURE REQ D SKILL LEVEL Daily or Before Use Air Filter Inspect Clean 1 Choke Shutter Inspect Clean 1 Fuel System Inspect 1 1 Cooling System Ins...

Страница 33: ...side cover Foam Pre Filter Clean foam filter A in water detergent solution and rinse with clean water Wrap the filter in a clean dry cloth and squeeze do not wring dry Allow to dry completelybeforereu...

Страница 34: ...ter from tank 3 Remove the filter from the line and install the new filter Note Federal EPA regulations require all model year 2012 and later gasoline powered engines produced for sale in the United S...

Страница 35: ...ug gap by bending outer electrode 4 Tighten spark plug to 150 170 kgf cm 130 150 in lbf Cooling System Level 2 To maintain proper engine operating temperatures cooling air must pass freely through the...

Страница 36: ...ck frame and blower housing Cleaning Cylinder Fins 1 Disconnect spark plug lead from spark plug 2 Remove air filter cover 3 Remove engine cover 4 Clean cylinder fins A to allow cooling air to pass fre...

Страница 37: ...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 deposits be careful not to damage the catalyt...

Страница 38: ...ol 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...

Страница 39: ...0 feet ASL the carburetor may need to be adjusted by an authorized ECHO service dealer If the engine is adjusted for operation above 1 100 feet ASL the carburetor must be re adjusted when operating th...

Страница 40: ...able Adjustment PB 770T only Level 1 If engine idle speed changes when blower pipe is moved or engine will not reach full wide open throttle speed adjust throttle cable 1 Loosen handle adjustment knob...

Страница 41: ...buretor No fuel at carburetor Fuel strainer or fuel line obstructed Clean or replace See your dealer Engine starts hard or Engine does not start Fuel at cylinder No fuel at cylinder Carburetor See you...

Страница 42: ...ent Fuel vent plugged Contaminated fuel Clean or replace Spark plug Plug dirty or worn Normal wear Clean and adjust or replace Carburetor Improper adjustment Vibration Adjust Cooling system Cooling sy...

Страница 43: ...accumulation of grease oil dirt and debris from exterior of unit 4 Perform all periodic lubrication and services that are required 5 Tighten all the screws and nuts 6 Drain fuel tank completely Press...

Страница 44: ...capacitor discharge ignition type Spark Plug NGK BPM 8Y BPMR 8Y in Canada Gap 0 65 mm 0 026 in Fuel Mixed Gasoline and Two stroke Oil Gasoline Oil Ratio 50 1 Gasoline Use 89 Octane unleaded Do not use...

Страница 45: ...roduct on line It s FAST and EASY NOTE your information will never be sold or misused by ECHO Inc Registering your purchase enables us to contact you in the unlikely event of a service update or produ...

Страница 46: ...PRODUCT REGISTRATION PB 770 H T 46 X7531125807 01 2020 ECHO Incorporated...

Страница 47: ...PB 770 H T NOTE X7531125807 47 01 2020 ECHO Incorporated NOTE...

Страница 48: ...ECHO INCORPORATED 400 Oakwood Road Lake Zurich IL 60047 www echo usa com H P44914001001 P44914999999 T P45014009290 P45014999999...

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