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CS-520
CS-520
Dimension L × W × H mm 398 × 252 × 272 (15.7 in. × 9.9 in. × 10.7 in.)
Mass Power head, dry kg 4.9 (10.8 lb.)
Without chain and guide bar
Engine Type Air-cooled two-stroke single cylinder
Displacement mL (cm³) 50.1 (3.057 cu. in.)
Carburetor Diaphragm type
Magneto Flywheel magneto: CDI system
Spark plug CHAMPION CJ-6Y or NGK BPM8Y
Starter Recoil starter
Power transmission Automatic centrifugal clutch
Fuel Mixture ratio 50 : 1 ratio with ECHO Power Blend™ two-stroke,
air-cooled engine oil.
89 octane unleaded. Do not use fuel containing
methyl alcohol, more than 10 % ethyl alcohol or 15 %
MTBE.
Tank capacity L 0.60 (20.3 US. fl. oz.)
Oil Bar and chain ECHO bar and chain oil (or motor oil)
Tank capacity L 0.28 (9.5 US. fl. oz.)
Guide bar and
See page 21 for Chain and Guide Bar Combination
saw chain
Lubrication Adjustable automatic oil pump
Engine speed Idle r/min 2,300 - 3,300
Wide open throttle r/min 11,500 - 13,000
Standard Front hand guard, Rear hand guard,
features Anti-vibration device, Spiked bumper,
Throttle control lockout, Chain brake,
Chain catcher, Spark arrestor muffler, Kick guard
STORAGE AFTER USE
* Technical data subject to change without notice.
TECHNICAL DATA
• Inspect and adjust every part of the chain saw.
- Completely clean every part and repair if
necessary.
- Apply thin coating of oil on metal parts to
prevent rust.
• Remove chain and guide bar.
• Drain fuel tank, pull starter slowly a few times to
drain fuel from carburetor.
• Pour a small amount of clean motor oil into spark
plug hole, pull starter and crank the engine until
piston reaches: TOP DEAD CENTER.
• Store in a dry area, free from dust.
WARNING
Do not store in an enclosure where fuel
fumes may accumlate or reach an open flame
or spark.
CAUTION
Do not lend or rent your chain saw without
the Instruction manual and Safety manual.
NOTE
• For future reference, you should keep this
Instruction manual and the Safety manual.
• If this Instruction manual or the Safety manual
has become illegible or is lost, please purchase
a new one from your ECHO dealer.
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