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Nomenclature of parts – Echo CS-450P User Manual

Page 7

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7

CS-450P

NOMENCLATURE OF PARTS

1. Operator’s manual - Included with unit.

Read before operation and keep for future
reference to learn proper, safe operating
techniques.

2. Safety manual - Describe operating and safety

instructions for this chain saw.

3. Spark arrestor muffler - The spark arrestor

muffler controls the exhaust noise and

prevents hot, glowing particles of carbon

from leaving the muffler.

4. Front hand guard - Guard between the front

handle and the saw chain for protecting the
hand from injuries and aiding in control of the
chain saw if the hand slips off the handle.
This guard is used to lock the chain brake
which is to stop the saw chain rotation.

5. Cleaner cover knob - Device for installing the

air cleaner cover.

6. Air cleaner cover - Covers air filter.

7. Purge pump - When starting engine, push

purge pump 3 or 4 times.

8. Choke control knob - Device for enriching the

fuel/air mixture in the carburetor to aid cold
starting.

9. Rear handle (for the right hand) - Support

handle located towards the rear of the
engine housing.

10. Rear hand guard - Extension on the lower part

of the rear handle for protecting the hand
from the chain if it breaks or degrooves.

11. Clutch cover - Protective cover to the guide

bar, saw chain, clutch and sprocket when the
chain saw is in use.

12. Chain tension adjuster - Device to adjust

chain tension.

13. Chain catcher - A projection designed to

reduce the risk of the operator’s right hand
from being hit by a chain which has broken
or derailed from the guide bar during cutting.

14. Spiked bumper - Device, fitted in front of the

guide bar mounting point, acting as a pivot

when in contact with a tree or log.

15. Guide bar - The part that supports and guides

the saw chain.

16. Saw chain - Chain, serving as a cutting tool.

17. Oil tank cap - For closing the oil tank.

18. 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.

19. Fuel tank cap - For closing the fuel tank.

20. Throttle trigger - Device activated by the

operator’s finger, for controlling the engine
speed.

21. Throttle trigger lockout - A safety lever which

must be depressed before the throttle trigger
can be activated in order to prevent the
accidental operation of the throttle trigger.

22. Ignition switch - Device for connecting and

disconnecting the ignition system and thus
allowing the engine to be started or stopped.

23. Front handle (for the left hand) - Support

handle located at the front of the engine
housing.

24. Cylinder cover - The cooling airflow grill. It

covers the cylinder, spark plug and silencer.