1. Manuals
  2. Brands
  3. Echo Manuals
  4. Blower
  5. PB-7910T
  6. Operator's manual

Echo PB-7910T Operator's Manual

Power blower
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
PB-7910 H/T
Power Blower
The engine 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 to do so could result in serious injury.
Note: This product complies with CAN ICES-2/NMB-2.
X7501201800
© 10/23 ECHO Incorporated
Operator's
Manual

Advertisement

Table of Contents
loading

Related Manuals for Echo PB-7910T

Summary of Contents for Echo PB-7910T

  • Page 1 State of California to cause cancer, birth defects, or other reproductive harm. Read and understand all provided literature before use. Failure to do so could result in serious injury. Note: This product complies with CAN ICES-2/NMB-2. X7501201800 © 10/23 ECHO Incorporated...

  • Page 2: Table Of Contents

    Fuel Filter ................... 38 Spark Plug ..................39 Cooling System.................. 39 Exhaust System ................. 41 Carburetor Adjustment ............... 43 Throttle Cable Adjustment (PB-7910T only) ........45 Troubleshooting ..................46 Storage ..................... 48 Long Term Storage (Over 30 Days) ........... 48 Specifications .................... 49 Product Registration..................

  • Page 3: Introduction

    SERVICING INFORMATION Parts and Serial Number Genuine ECHO parts and assemblies for your ECHO products are available only from an Authorized ECHO Dealer. When you do need to buy parts, always have the model number and serial number of the unit with you. For future reference write them in the space provided below.

  • Page 4: Service

    Register your ECHO equipment online at www.echo-usa.com or by filling out the product registration sheet included in this manual. Registering your product confirms warranty coverage and provides a direct link to ECHO if we find it necessary to contact you.

  • Page 5: Safety

    Note: This enclosed message provides tips for use, care and maintenance of the unit. CIRCLE AND SLASH SYMBOL This symbol means the specific action shown is prohibited. Ignoring these prohibitions can result in serious or fatal injury. X7501201800 © 10/23 ECHO Incorporated...

  • Page 6: International Symbols

    Adjustment - Low Protection Speed Mixture Safety/Alert Stop Switch STOP Fuel and Oil Hot Surface Mixture Idle speed Fast speed Finger severing Purge Bulb DO NOT Allow Ignition Ignition Flames or Sparks ON / OFF Near Fuel X7501201800 © 10/23 ECHO Incorporated...
  • Page 7 Position (Choke Closed) Choke Control Wear Slip “RUN” Position Resistant (Choke Open) Footwear Beware of thrown objects Keep Bystanders and Helpers Away 15 m (50 ft.). Note: Not all symbols will appear on your unit. X7501201800 © 10/23 ECHO Incorporated...

  • Page 8: Personal Condition And Safety Equipment

    Eye protection that meets ANSI Z87.1 or CE requirements  must be worn whenever you operate the unit. For additional safety, a full-face shield can be worn over  safety glasses or goggles to provide protection from sharp branches or flying debris. X7501201800 © 10/23 ECHO Incorporated...
  • Page 9 Gloves also provide protection against cuts and scratches, cold environments, and reduce the transmission of machine vibration to your hands. Hearing and Ear Protection ECHO recommends wearing personal protective equipment whenever unit is used. Breathing Protection Operators who are sensitive to dust or other common airborne allergens may need to wear a dust mask to prevent inhaling these materials while operating unit.
  • Page 10 To reduce the risk of serious or fatal injury, persons with pacemakers should consult with their physician and the pacemaker manufacturer before operating this machine. In the absence of such information, ECHO does not recommend the use of this machine by anyone who has a pacemaker.
  • Page 11 Never touch wires directly or indirectly, otherwise serious injury or death can result. Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death. X7501201800 © 10/23 ECHO Incorporated...
  • Page 12 Do not work in odd positions or on ladders. Do not over reach. Avoid Hot Surfaces • Keep exhaust area clear of flammable debris. Avoid contact during and immediately after operation. X7501201800 © 10/23 ECHO Incorporated...

  • Page 13: Equipment

    Incorporated 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. Do not attempt to modify this product. Serious injury can ...

  • Page 14: Emission Control (Exhaust & Evaporative)

    The 50 or 300 hour emission compliance period is the time span selected by the manufacturer certifying the engine emissions output meets applicable emissions regulations, provided that approved maintenance procedures are followed as listed in the Maintenance Section of this manual. X7501201800 © 10/23 ECHO Incorporated...

  • Page 15: Description

    Locate the safety decal(s) or etching(s) on your unit. Make sure they are legible, and that you understand and follow the instructions. If any cannot be read, replacements can be ordered from your ECHO dealer. Images shown below are for example only. Those on your unit might appear slightly different.
  • Page 16 Safety Decal / Etching Stick Handle Blower Pipes Flexible Pipe Spark Arrester Muffler (with or without Catalyst) 10. Fuel Tank 11. Fuel Tank Cap 12. Spark Plug 13. Choke 14. Recoil Starter Handle 15. Purge Bulb X7501201800 © 10/23 ECHO Incorporated...
  • Page 17 Locate the safety decal(s) or etching(s) on your unit. Make sure they are legible, and that you understand and follow the instructions. If any cannot be read, replacements can be ordered from your ECHO dealer. Images shown below are for example only. Those on your unit might appear slightly different.
  • Page 18 Throttle Position Lever Throttle Trigger Blower Pipes Flexible Pipe Spark Arrester Muffler (with or without Catalyst) 10. Fuel Tank 11. Fuel Tank Cap 12. Spark Plug 13. Choke 14. Recoil Starter Handle 15. Purge Bulb X7501201800 © 10/23 ECHO Incorporated...

  • Page 19: Contents

    Due to packaging restrictions, some assembly may be necessary. After opening the carton, check for damage. Immediately notify your retailer or ECHO Dealer of damaged or missing parts. Use the contents list to check for missing parts. PB-7910H Power Head...

  • Page 20: Assembly

    Assemble swivel pipe (C) into flexible pipe (B). Assemble flexible pipe (B) to elbow (D) on blower and tighten clamps (A). Note: A light lubricant may be used to ease assembly of flexible pipe to blower elbow. X7501201800 © 10/23 ECHO Incorporated...
  • Page 21 (J) the same as in step 8. Note: Blower use will eventually loosen pipe connections. Exclusive positive locking system allows pipes to be tightened. If loosening occurs, remove two pipes and install according to steps 8 and 9. X7501201800 © 10/23 ECHO Incorporated...

  • Page 22: Install Blower Pipes

    (D) on blower. Position clamp with cable guide loop (G) on outside of flexible pipe and tighten clamp. Note: Hang handle freely from blower to assure throttle cable is not twisted before installing handle (E). X7501201800 © 10/23 ECHO Incorporated...
  • Page 23 9. Note: Blower use will eventually loosen pipe connections. Exclusive positive locking system allows pipes to be tightened. If loosening occurs, remove two straight pipes and install according to steps 9 and 10. X7501201800 © 10/23 ECHO Incorporated...

  • Page 24: Operation

    Always be alert for changes in operation of unit.  Always shut engine off before transporting unit to new  location. Always secure the unit during transportation to prevent  turnover, fuel spillage, and damage to the unit. X7501201800 © 10/23 ECHO Incorporated...

  • Page 25: Fuel

    NOT approved. Use of ECHO branded fuel is recommended to extend engine life in all air-cooled 2-stroke and 2/4-stroke hybrid engines. Two Stroke Oil - A two-stroke engine oil, such as ECHO branded 2-stroke oils, meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards must be used.
  • Page 26 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 ratio specified in those manuals. Handling Fuel Fuel is VERY flammable. Use extreme care when mixing, storing or handling, or serious personal injury will result.
  • Page 27 • Empty the fuel tank prior to storing the unit. Return unused fuel to an approved fuel storage container. Stored two-stroke fuel can separate. ALWAYS shake fuel container thoroughly before each use. X7501201800 © 10/23 ECHO Incorporated...

  • Page 28: Starting Cold Engine

    Move throttle lever (A) to IDLE position. Choke PB-7910H Rotate choke (B) to COLD START position. Purge Bulb Pump purge bulb (C) until fuel is visible. Pump bulb an additional 4 or 5 times. PB-7910T X7501201800 © 10/23 ECHO Incorporated...
  • Page 29 COLD START position, and repeat steps 3- 6. Allow engine to warm up for several minutes before use. Throttle Lever After engine warm-up, move throttle lever gradually to increase engine RPM to desired operating speed. X7501201800 © 10/23 ECHO Incorporated...

  • Page 30: Starting Warm Engine

    Pump bulb an additional 4 or 5 times. PB-7910T Recoil Starter Pull recoil starter handle (D) and engine should start. Do not use choke (B). Note: If engine does not start after 5 pulls, use cold start procedures. X7501201800 © 10/23 ECHO Incorporated...

  • Page 31: Stopping Engine

    Move Throttle 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 dealer repair stop switch before using unit again. X7501201800 © 10/23 ECHO Incorporated...

  • Page 32: Operating Blower

    To reduce sound levels, limit the number of pieces of equipment used at any one time. Allow the engine to warm up at a fast idle for a few minutes. X7501201800 © 10/23 ECHO Incorporated...
  • Page 33 Always stop unit using stop engine procedure. Note: Never use a higher speed setting than necessary to perform a task. Remember, the higher the engine speed, the louder the blower noise. X7501201800 © 10/23 ECHO Incorporated...

  • Page 34: Maintenance

    Operating a poorly maintained unit can result in serious injuries to operator or bystanders. Always follow all maintenance instructions as written, otherwise serious personal injury can result. X7501201800 © 10/23 ECHO Incorporated...

  • Page 35: Skill Levels

    Skill Levels Level 1 = Easy to do. Common tools may be required. Level 2 = Moderate difficulty. Some specialized tools may be required. Level 3 = See your dealer. Click HERE or go to http://www.echo-usa.com/products/maintenance-kit HERE https://www.shindaiwa-usa.com/you-can.aspx Maintenance Intervals SKILL...
  • Page 36 IMPORTANT NOTE - Time intervals shown are maximum. Actual use and your experience will determine the frequency of required maintenance. MAINTENANCE PROCEDURE NOTES: Replacement is recommended based on the finding of damage or wear during inspection. X7501201800 © 10/23 ECHO Incorporated...

  • Page 37: Air Filter

    • If filter can be reused, be certain it fits tightly in the air filter cavity, and is installed with the original side out. Assemble components in reverse order. X7501201800 © 10/23 ECHO Incorporated...

  • Page 38: Fuel Filter

    2012 and later equipment, only fuel supply hoses certified by EPA can be used to replace the original equipment supply hose. Fines up to $37,500 may be enforced for using an un-certified replacement part. X7501201800 © 10/23 ECHO Incorporated...

  • Page 39: Spark Plug

    • 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. X7501201800 © 10/23 ECHO Incorporated...
  • Page 40 Cleaning Cylinder Fins Disconnect spark plug lead from spark plug. Remove engine cover. Clean cylinder fins (A) to allow cooling air to pass freely. Install engine cover. Connect spark plug lead. X7501201800 © 10/23 ECHO Incorporated...

  • Page 41: Exhaust System

    (C) from muffler. Replace screen if plugged with carbon deposits. Note: When cleaning carbon deposits, be careful not to damage the catalytic element inside muffler. Install spark arrester screen. Install engine cover. Connect spark plug lead. X7501201800 © 10/23 ECHO Incorporated...
  • Page 42 Do not allow carbon particles to enter the cylinder. Inspect muffler gasket, and replace if damaged. Install muffler gasket and muffler. Tighten muffler mounting bolts (or nuts) to 110-150 kgf•cm (95-130 lbf•in). X7501201800 © 10/23 ECHO Incorporated...

  • Page 43: Carburetor Adjustment

    Before adjustment make sure that: • Air filter is clean and properly installed. • Spark arrester screen and muffler are free of carbon. • Blower pipes are installed. Start engine, run at idle for one minute. X7501201800 © 10/23 ECHO Incorporated...
  • Page 44 If a tachometer is available, idle speed screw (A) should be set to the specifications found on “Specifications” Page of this manual. Turn idle screw (A) clockwise to increase idle speed; counterclockwise to decrease idle speed. X7501201800 © 10/23 ECHO Incorporated...

  • Page 45: Throttle Cable Adjustment (Pb-7910T Only)

    PB-7910 H/T MAINTENANCE Throttle Cable Adjustment (PB-7910T 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. Loosen handle adjustment knob (C) and tilt tube throttle handle forward to expose adjustment screw (D).

  • Page 46: Troubleshooting

    Interlock switch No spark Engine Incorrect gap Adjust to does not - Covered 0.65 mm start Spark at with carbon - (0.026 in.) plug Fouled with Clean or replace fuel - Plug plug defective X7501201800 © 10/23 ECHO Incorporated...
  • Page 47 Cooling system dirty ation in dirty or Clean system or plugged dusty locations properly Spark Spark arrester arrester Normal wear Replace screen screen plugged Engine Internal engine does not See your dealer problem crank X7501201800 © 10/23 ECHO Incorporated...

  • Page 48: Storage

    10. Install the spark plug. Connect the spark plug lead to the spark plug. 11. Remove blower pipe assembly from unit. X7501201800 © 10/23 ECHO Incorporated...

  • Page 49: Specifications

    1.98 L (67.0 US fl. oz.) Starter System Automatic recoil starter, centrifugal type Idle Speed 2,500 RPM Wide Open Throttle 7,600 RPM Speed Air Force 40 N Maximum Air Speed 107.3 m/sec (240 mph) (with pipes) X7501201800 © 10/23 ECHO Incorporated...

  • Page 50: Product Registration

    Please go to http://www.echo-usa.com/Warranty/Register-Your-ECHO to register your new product on-line. It's FAST and EASY! NOTE: your information will never be sold or misused by ECHO, Incorporated. Registering your purchase enables us to contact you in the unlikely event of a service update or product recall, and verifies your ownership for warranty consideration.
  • Page 51 PB-7910 H/T PRODUCT REGISTRATION X7501201800 © 10/23 ECHO Incorporated...
  • Page 52 P57512001001 - P57512999999 P57613001001 - P57613999999 P57712001001 - P57712999999 P57813001001 - P57813999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.com...

This manual is also suitable for:

Pb-7910 h

Table of Contents