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CS-450
MAINTENANCE AND CARE
Your ECHO chain saw is designed to provide many hours of trouble free service. Regular scheduled maintenance will help your
chain saw achieve that goal. If you are unsure or are not equipped with the necessary tools, you may want to take your unit to an
ECHO Service Dealer for maintenance. To help you decide whether you want to DO-IT-YOURSELF or have the ECHO Dealer do
it, each maintenance task has been graded. If the task is not listed ask your ECHO dealer for repairs.

MAINTENANCE INTERVALS

WARNING

Moving parts can amputate ngers or cause severe injuries. Keep hands, clothing and loose objects away from

all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a com-

plete stop before removing obstructions, clearing debris, or servicing unit. Allow unit to cool before performing

service. Wear gloves to protect hands from sharp edges and hot surfaces.

SKILL LEVELS
Level 1 = Easy to do. Most required tools come with unit.
Level 2 = Moderate difculty. Some specialized tools may be required.
ECHO offers REPOWER™ Maintenance Kits and Parts to make your maintenance job easier.
COMPONENT/
SYSTEM
MAINTENANCE
PROCEDURE
REQ'D
SKILL
LEVEL
DAILY OR
BEFORE
USE
EVERY
REFUEL
3 MONTHS
OR 90
HOURS
YEARLY 600
HOURS
Air Filter Inspect/Clean 1I / C * R *
Automatic Oiler Inspect/Adjust 1I
Oil Filter Inspect/Replace 1I I/C *
Fuel System Inspect/Replace 1I (1) * I (1) *
Fuel Filter Inspect/Replace 1I * I / R *
Fuel Cap Gasket Replace 1I * R *
Guide Bar & Sprocket
Nose Inspect/Clean/Lubricate 1I / C * I
Saw Chain Inspect/Sharpen/Replace/
Tensioning 2I *
Sprocket Inspect/Replace 2I *
Spark Plug Inspect/Clean 1I / C / R *
Cooling System Inspect/Clean 2I / C
Muffler Spark Arrestor Inspect/Clean/Replace 2I / C / R *
Cylinder Exhaust Port Inspect/Clean/Decarbon 2I / C
Recoil Starter Rope Inspect/Clean 1I / C *
Screws/Nuts/Bolts Inspect/Tighten/Replace 1I *
(1) Low evaporative fuel tanks DO NOT require regular maintenance to maintain emission integrity.
* Replacement is recommended based on the finding of damage or wear during inspection.
MAINTENANCE PROCEDURE LETTER CODES: I = INSPECT, R = REPLACE, C = CLEAN
IMPORTANT NOTE - Time intervals shown are maximum. Actual use and your experience will determine the
frequency of required maintenance.
MAINTENANCE PROCEDURE NOTES: