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7. Maintenance
■ BLADES (F3)
• When refilling the tank or resting, it is often a
good idea to use the time to oil the cutting
blades.
• If a gap exists between the upper and lower
blades, follow the procedure below to adjust
them so that they fit more closely together.
1. Loosen lock nut (A) as shown in the diagram.
2. Tighten screw (B) fully, and then turn one-third
to one-half of a rotation backward.
3. While holding onto the screw to keep it in
position, tighten the lock nut.
4. Check to make sure that the flat washer (C) is
loose enough so that it may be turned by
pressing on it with a finger.
(1) Upper blade
(2) Lower blade
Screwing in the screw too tightly may make it
impossible for the blades to move. Conversely, not
screwing in the screw tightly enough may make the
blades of the trimmer feel dull and cause leaves
and branches to become caught in the blades of
the trimmer.
NOTE
F3
every every every
25 50 100
system/compornent procedure before hours hours hours note
use after after after
replace if
cutting parts ✔
something's wrong
gear case grease ✔
screws/nuts/bolts tighten/replace ✔✔not adjusting screws
SHAFT
■ MAINTENANCE CHART