Operation Manual
5
CS-310
 WARNING
The safety alert symbol accompanied by the word 
“WARNING” calls attention to an act or condition 
which CAN lead to serious personal injury or death 
if not avoided.
CIRCLE AND SLASH SYMBOL
This symbol means the specic action 
shown is prohibited. Ignoring these 
prohibitions can result in serious or 
fatal injury.
 CAUTION
The safety alert symbol accompanied by the word 
“CAUTION” calls attention to an act or condition 
which may lead to minor or moderate personal 
injury if not avoided.
NOTE
This enclosed message provides tips for use, 
care and maintenance of the unit.
IMPORTANT
The enclosed message provides information 
necessary for the protection of the unit.
 DANGER
The safety alert symbol accompanied by the word 
“DANGER” calls attention to an act or condition 
which WILL lead to serious personal injury or death 
if not avoided.
SYMBOLS AND SIGNS
CONTENTS
RULES FOR SAFE OPERATION ............................................................................   2
SYMBOLS AND SIGNS ...........................................................................................  5
EMISSION DATA .....................................................................................................   7
PACKING LIST .........................................................................................................  7
NOMENCLATURE OF PARTS ................................................................................   8 
OPERATOR SAFETY ..............................................................................................  10
CORRECT USE OF CHAIN BRAKE ........................................................................  11
PREPARATION FOR USE .......................................................................................  12
FUEL AND LUBRICANT ..........................................................................................  14
OPERATION ............................................................................................................  16
CUTTING INSTRUCTION ........................................................................................  19
CHAIN AND GUIDE BAR COMBINATION ...............................................................  24
MAINTENANCE AND CARE ....................................................................................  25
 Carburetor Adjustment.............................................................................................  26
 - High Altitude Operation ........................................................................................  26
SETTING THE SAW CHAIN ....................................................................................  30
TROUBLESHOOTING .............................................................................................  32
STORAGE AFTER USE ...........................................................................................  33
TECHNICAL DATA ...................................................................................................  33
WARRANTY STATEMENTS ....................................................................................  34
SERVICING INFORMATION ....................................................................................  40
This chain saw is designed for cutting wood or wood products. Do not cut solid metal, sheet 
metal, plastic or any non-wood materials.
Specications, descriptions and illustrative material in this literature are as accurate as known 
at the time of publication, but are subject to change without notice.       
Illustrations may include optional equipment and accessories, and may not include all standard 
equipment. 










