TABLE OF CONTENTS
SRM-3020U
2
X7502350202
© 12/2019 ECHO Inc.
TABLE OF CONTENTS
Table of Contents.......................................................................................................................... 2
Introduction ................................................................................................................................... 3
Servicing Information .................................................................................................................... 3
Parts/Serial Number ............................................................................................................ 3
Service................................................................................................................................. 4
ECHO Consumer Product Support...................................................................................... 4
Product Registration ............................................................................................................ 4
Additional Literature............................................................................................................. 4
Manual Safety Symbols and Important Information............................................................. 4
International Symbols .......................................................................................................... 5
Personal Condition and Safety Equipment .......................................................................... 7
Equipment.......................................................................................................................... 12
Description .................................................................................................................................. 15
Contents...................................................................................................................................... 16
Assembly .................................................................................................................................... 17
U-handle Installation .......................................................................................................... 17
Throttle Linkage and Ignition Leads................................................................................... 18
Blade Installation ............................................................................................................... 18
Install Blade Shield and Blade ........................................................................................... 19
Shield with Cutoff Knife and Nylon Line Head Installation................................................. 20
To Advance Trimmer Line ................................................................................................. 21
Balance and Adjust Unit .................................................................................................... 22
Operation With Blades....................................................................................................... 23
Blade Selection.................................................................................................................. 24
Fuel.................................................................................................................................... 26
Starting Cold Engine.......................................................................................................... 29
Starting Warm Engine........................................................................................................ 30
Stopping Engine ................................................................................................................ 32
Applications ....................................................................................................................... 32
Operating Techniques ....................................................................................................... 33
Reaction Forces................................................................................................................. 33
Blade Cutting Problems ..................................................................................................... 34
Skill Levels......................................................................................................................... 36
Maintenance Intervals........................................................................................................ 36
Air Filter ............................................................................................................................. 37
Fuel Filter........................................................................................................................... 39
Spark Plug ......................................................................................................................... 40
Cooling System.................................................................................................................. 40
Exhaust System................................................................................................................. 42
Carburetor Adjustment....................................................................................................... 43
Lubrication ......................................................................................................................... 44
Nylon Line Head Disassembly Instructions ....................................................................... 45
Nylon Line Replacement.................................................................................................... 46
Sharpening Metal Blades................................................................................................... 48
Specifications.............................................................................................................................. 50
Product Registration ................................................................................................................... 52
Notes........................................................................................................................................... 54