TABLE OF CONTENTS CS-4920
2 X7503352100
© 09/2022 ECHO Incorporated
TABLE OF CONTENTS
Introduction ................................................................................................................. 3
Servicing Information.................................................................................................. 3
Parts and Serial Number.................................................................................... 3
Service ............................................................................................................... 4
ECHO Consumer Product Support .................................................................... 4
Product Registration........................................................................................... 4
Additional Literature ........................................................................................... 4
Safety ......................................................................................................................... 5
Manual Safety Symbols and Important Information ........................................... 5
International Symbols......................................................................................... 6
Personal Condition and Safety Equipment ........................................................ 8
Rules for Safe Operation.................................................................................. 12
Correct Use of Chain Brake ............................................................................. 13
Emission Control . (Exhaust & Evaporative) ............................................................ 19
CARB and EPA Emissions Control Information................................................ 19
Description ............................................................................................................... 20
Contents................................................................................................................... 22
Assembly.................................................................................................................. 22
Preparation for Use .......................................................................................... 22
Operation.................................................................................................................. 27
Fuel .................................................................................................................. 27
Chain Lubricant ................................................................................................ 30
Starting Cold Engine ........................................................................................ 31
Starting a Hard To Start Engine ....................................................................... 33
Starting Warm Engine ...................................................................................... 34
Running............................................................................................................ 34
Stopping ........................................................................................................... 35
Checking Chain Tension .................................................................................. 36
Chain Lubrication Test...................................................................................... 36
Cutting Instructions .......................................................................................... 36
Guide Bar and Chain Combinations................................................................. 41
Kick Guard
TM
................................................................................................... 42
Guide Bar ......................................................................................................... 42
Saw Chain........................................................................................................ 42
Maintenance............................................................................................................. 43
Skill Levels ....................................................................................................... 43
Maintenance Intervals ...................................................................................... 44
Air Filter............................................................................................................ 45
Spark Plug........................................................................................................ 46
Check Fuel System .......................................................................................... 46
Fuel Filter ......................................................................................................... 47
Automatic Oiler................................................................................................. 47
Oil Filter............................................................................................................ 48
Guide Bar ......................................................................................................... 48
Sprocket ........................................................................................................... 49
Cooling System Cleaning................................................................................. 49
Spark Arrester Muffler ...................................................................................... 50
Spark Arrester Screen...................................................................................... 51
Carburetor Adjustment ..................................................................................... 51
Setting the Saw Chain...................................................................................... 53
Troubleshooting........................................................................................................ 56
Storage..................................................................................................................... 57
Storage After Use............................................................................................. 57
Specifications ........................................................................................................... 58
Product Registration................................................................................................. 60
To Next Page
General
