Echo PB-403T - Manual (Page 10)

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1. SAFETY DECAL - Lists important safety precautions.
2. SPARK PLUG - Provides spark to ignite fuel mixture.
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. 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.
5. AIR CLEANER - Contains replaceable air filter element.
6. FUEL TANK CAP - Covers and seals fuel tank.
7. THROTTLE POSITION LEVER - Pull back to increase engine speed. Friction washers maintain throttle lever setting.
8. SHOULDER HARNESS - Used to support unit on operator's back. The straps are adjustable.
9. CHOKE - Move lever UP to close choke ( ) (starting position) and for emergency stopping. Move DOWN to
open choke ( ) (run position).
10. PRIMER BULB - Pumping primer bulb before starting engine draws fresh fuel from the fuel tank priming the carbure-
tor for starting. Pump primer bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an
additional 4 or 5 times.
11. HANDLE - Used by operator to direct and control air flow.
12. STOP SWITCH - Slide switch mounted on top of handle. Move forward to run, back to stop.
13. THROTTLE TRIGGER - Spring loaded to return to idle when released. During acceleration, press trigger gradually
for best operating technique.
14. LOCKING KNOB - Allows operator to adjust handle position for optimum comfort and control.
15. BLOWER PIPES - Twist lock design.
16. FLEXIBLE PIPE - Allows for full range of movement.