Echo HCA-265ES-HD Operator's Manual page 29

Care for cutting blades
Wear gloves to protect hands from sharp blades.
Failure to observe these precautions could lead to injury.
1. Bolt slots
1. Bolt
Maintenance and care
CAUTION
Lubricating blades (Every 4 hours of operation)
Apply a few drops of oil the each bolt slots at the bottom of
blades.
Cleaning blades (After each use)
Remove gummy residue from blades with a 50 : 50 mixture of
kerosene (paraffin) and machine oil.
Cutter blade adjustment
Standard blades require no periodic adjustments. Make sure all
blade bolts are tight and in good condition.
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