680ES OPERATOR MANUAL
38
© 2015 ICS®, Blount International Inc. Specifications are subject to
change without notice. REV071315 F/N 577451
Maintenance
AIR FILTER
The polyester air filter must be kept clean for the
engine to operate properly. If the saw is not reaching full RPM, most likely the air
filter is dirty or wet.
•
The air filter should be free of holes and white in color
•
Replace the air filter when dirty or wet.
•
When replacing the air filter, clean the area inside the air
box with a clean towel prior to installing new filter
• Inspect air box seal for wear or damage. Replace if
damaged.
FUEL SYSTEM
• Clean area around fuel cap before removing.
• Check the fuel cap and seal for damage.
• Check the fuel line for damage.
•
Check fuel filter, assure it is free of debris.
•
Replace fuel filter if it is stained dark or clogged (fuel filter cannot be cleaned).
After each use
After every 10 hours
After every 40 hours
External Cleaning
Clean Starter Housing
Replace Spark Plug
Fasteners/Screws
Check Spark Plug
Check Fuel Filter
Air Intake
Functional Inspection
Functional Inspection
Functional Inspection
General Inspection
Vibration Isolators
Fuel System
Throttle Trigger Lockout
Muffler
Fuel Filter
Multi-function Lever
Carburetor
Air Filter
Mud Flap
Starter Housing
Clutch Cup
Guidebar and Chain
Sprocket
Clutch