Echo SRM - 225U Operator's Manual page 8

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1. POWER hEAD - Includes the Engine, Clutch, Fuel System, Ignition System and Recoil Starter.
2. ThROTTLE TRIGGER LOCKOUT - This lever must be held during starting. Operation of the throttle trigger is
prevented unless throttle trigger lockout lever is engaged.
3. STOP SWITCh - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing. Move switch FORWARD
to RUN, BACK to STOP.
4. ThROTTLE TRIGGER - Controls engine speed. Spring loaded to return to idle when released. During accelera-
tion, press trigger gradually for best operating technique.
5. DRIVE ShAFT ASSEMbLy - Includes the Rear (right hand) Handle assembly, Gear Housing assembly, Front
(loop, left hand) Handle assembly, metal drive shaft and Safety Decal.
6. NyLON CUTTER hEAD - Contains replaceable nylon trimming line that advances when the trimmer head is
tapped against the ground while the head is turning at normal operating speed.
7. CUT-OFF KNIFE - Automatically trims line to the correct length: 5" after head is tapped on the ground. If trimmer
is operated without a cut-off knife, the line will become too long, the engine will overheat, and engine damage may
occur.
8. PLASTIC DEbRIS ShIELD ASSEMbLy - Included in plastic bag (co-pack). MUST be installed on unit before
use, see Assembly Instructions. Shield assembly includes the Cut-Off Knife. Mounts on the Gear Housing Assem-
bly just above the cutting attachment. Helps protect the operator by deflecting debris produced during the trimming
operation. This shield must be replaced with the metal shield for blade use.
9. U-hANDLE - Required for metal blade operation.
10. hIP PAD - Used to protect hip/leg and clothing when using U-handle equipped unit.
11. ShOULDER hARNESS- An adjustable strap that suspends the unit from the operator. Using the strap reduces
operator fatigue.
12. bLADE - Circular blade for grass, weed or brush cutting applications. Harness, metal shield & U-handles required
for blade operation.
13. METAL bLADE ShIELD - Required when unit is equipped with blades. Do not operate unit without shield.
14. SPARK PLUG - Provides spark to ignite fuel mixture.
15. ARM REST - Provides arm rest during operation and protects arm from the hot engine.
16. RECOIL STARTER hANDLE - Pull 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.
17. 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.
18. FUEL TANK - Contains fuel and fuel filter.
19. FUEL TANK CAP - Covers and seals fuel tank opening.
20. ChOKE - The choke control is located at the rear of the air cleaner housing. Move choke lever to Cold Start
( ) to close choke for cold start. Move choke lever to "Run" (
21. AIR CLEANER - Contains replaceable filter element.
22. 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.
) position to open choke.