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POWER PRUNER
TM
OPERATOR'S MANUAL
13
PRE-OPERATION
FUEL
Fuel Requirements
Gasoline - Use 89 Octane [R+M/2] (mid grade or higher) gasoline known
to be good quality. Gasoline may contain up to 15% MTBE (methyl
tertiary-butyl ether). Gasohol containing methyl (wood) alcohol is NOT
approved.
Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD
13738) and J.A.S.O. FC Standards must be used. Echo brand premium
Power Blend
TM
Universal 2-Stroke Oil meets these standards. Engine
problems due to inadequate lubrication caused by failure to use an ISO-
L-EGD and J.A.S.O. FC certified oil, such as Echo premium Power Blend
TM
, will void the two-stroke engine warranty. (Emission related parts
only are covered for two years, regardless of two-stroke oil used, per
the statement listed in the Emission Defect Warranty Explanation.)
SAW CHAIN TENSION ADJUSTMENT
WARNING DANGER
Always disconnect spark plug wire before servicing cutting
attachment. Wear gloves when handling saw chain, otherwise
serious personal injury may result.
To Adjust Saw Chain Tension.
1. Loosen two (2) 10 mm (13/32 in.) guide bar nuts (A) located on
cutting attachment.
2. Turn the adjuster slot (B) clockwise until saw chain touches the
bottom of guide bar. Turning adjuster slot (B) counter clockwise
will loosen saw chain on guide bar.
3. Tighten guide bar nuts firmly. Move saw chain backwards on
guide bar by hand. Saw chain should move freely on guide bar if it
is in proper mesh with sprocket.
Keep the saw chain lubricated and properly adjusted and the guide bar
nuts tightened firmly at all times. If saw chain is difficult to rotate or
binds on guide bar, it is too tight.
A
B
IMPORTANT
Echo premium Power Blend
TM
Universal
2-Stroke Oil may be mixed at 50:1 ratio
for application in all Echo engines sold
in the past regardless of ratio specified
in those manuals.