Echo DCS-2500 Operator's Manual page 19

1. Chain tension adjuster
Chain lubricant
1. Oil tank cap
2. Direction to tension the
chain
2. Knob
Before you start
6. Tighten a nut finger tight.
7. Ensure that chain tension adjuster fits into guide bar hole.
8. Hold the guide bar nose up and turn the adjuster clockwise
until the chain fits snugly against the underside of the guide
bar.
9. Tighten a nut with the guide bar nose held up.
10. Pull the chain around the guide bar by hand. Loosen the ad-
justment if you feel tight spots.
Proper lubrication of the chain while in operation minimizes
friction between the chain, the guide bar and sprocket.
Use ECHO genuine chain oil or ECHO recommended chain oil
specially formulated for bars and chains for proper lubrication.
These oils contain tackifiers, anti-aging and anti-oxidizing
agents.
Consult your ECHO dealer for the proper chain oil.
Never use waste or reclaimed oil to avoid various malfunctions
on oil system, chain and guide bar.
Lubrication problems caused by the use of improper oil will
void the warranty.
Especially, vegetable based chain oil quickly turns to resin and
adheres to oil pump, chain and guide bar.
It causes malfunctions and shorten product life.
Flush chain oil system with mineral or chemical based chain
oil after use, if it is required to use vegetable oil due to local /
municipal rule or any other reason.
For a short time emergency operation, fresh SAE 10W-30 mo-
tor oil can be used.
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