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CS-680
PREPARATION FOR USE
WARNING
Saw chain is sharp! Always wear gloves
when handling assembly, otherwise serious
personal injury may result.
GUIDE BAR AND SAW CHAIN
INSTALLATION/REMOVAL
NOTE
Move the chain brake lever (Front hand guard)
fully rearward to remove or install the clutch
cover to chain saw.
1. Remove spark plug lead. (See page 25)
2. Remove two clutch cover nuts and remove clutch
cover.
3. Remove bar and saw chain if necessary. See
“Maintenance and Care” section for guide bar/
saw chain maintenance procedures.
4. For initial setup, install the spiked bumper on the
front of machine with two 5 × 12 mm bolts.
5. Mount guide bar on studs and slide toward clutch
to make saw chain installation easier. Install
chain with cutters on top of guide bar facing
foward.
6. Unlock the chain brake, and install the clutch
cover over the guide bar studs. Ensure chain
tension adjuster pin fits into the guide bar
adjuster hole, brake band is positioned around
clutch drum, and hole at rear of clutch cover fits
pin on engine cover. Tighten clutch cover nuts
finger tight.
Two bolts 5 × 12 mm
Spiked bumper
Guide bar studs
Clutch cover
Brake lever
(Front hand guard)
Two nuts
Clutch
Brake band
Nuts
Adjuster pin
Guide bar
adjuster hole
Clutch cover
Guide bar studs
Unlock chain brake
Pin
Hole