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12 X7531123904
© 4/2013 ECHO Inc.
DESCRIPTION PB-770 H/T
1. SPARK PLUG - Provides spark to ignite fuel mixture.
2. SAFETY DECAL
- Lists important safety precautions.
3. SPARK ARRESTOR - CATALYTIC MUFFLER / MUFFLER - 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 recoil 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 and flows freely in the clear fuel tank return line. 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.