Use and Care Manual

CS-7310P OPERATION
X7503340002 29
© 11/21 ECHO Incorporated
Chain Lubricant
Proper lubrication of the chain while in operation reduces friction between
the chain and the guide bar to a minimum and assures a longer service life.
Note: Cap indication - Fuel and
oil tanks are indicated by
the following illustrations
• Use bar and chain oil of high
quality for this purpose.
• Do not use used or reclaimed oil
to avoid various oiler problems.
• Use high quality bar and chain oil.
• Use bar and chain oil of the following grades:
• SAE No. 30 in summer.
• SAE No. 10 in winter or when cutting resinous trees.
• When refueling, also refill chain oil.
Winter Operation
Change the air shutter to its cold position (with the snowman mark facing
up) when the outside air temperature is 41° F (5° C) or lower.
For operation above 41° F (5° C),
return the air shutter to its original
position. Failing to do so will cause
the engine to be overheated.
1. Cylinder cover.
2. Air shutter.
3. Cold weather position
(snowman mark).
4. Warm weather position (sun
mark).
Use the air shutter to prevent
carburetor troubles in winter.
• Pull the choke knob and remove
the cylinder cover.
• Pull out the air shutter and insert it with the snowman mark facing up.
• For operation above 41° F (5° C), return the air shutter to its original
position (with the sun mark facing up).
Oil tank capFuel tank cap