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CS-400
4. 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 forward.
5. Unlock the chain brake, and install the clutch cover over
the guide bar studs. Ensure chain tension adjuster pin ts
into the guide bar adjuster hole, brake band is positioned
around clutch drum. Tighten clutch cover nuts nger tight.
6. Turn saw over, and check brake band for correct position
on clutch drum. If brake band is not in place around drum,
remove cover, make sure brake is unlocked, and reinstall.
Tighten clutch cover nuts nger tight.
WARNING
Improper clutch cover assembly can result in serious
injury, and will cause severe saw damage if unit is
started. Never start or operate saw if brake band is not
in place on clutch drum. Always check chain brake
operation after replacing cover. Do not use saw if chain
brake does not function properly.
ADJUSTING CHAIN TENSION
IMPORTANT
Always loosen clutch cover nuts before turning the chain
tension adjuster, otherwise the clutch cover and tensioner
will be damaged.
1. Remove spark plug lead. (See page 25)
2. Loosen two clutch cover nuts, if necessary.
3. Hold the bar nose up, and turn the adjuster screw clock-
wise until chain contacts underside of the bar.
4. Tighten both nuts with the bar nose held up.
5. Pull the chain around the bar by hand. Loosen the adjust-
ment if you feel tight spots.
6. When chain is properly tensioned, tighten clutch cover nuts
securely - 175 to 200 N·m (200 to 230 kgf·cm).
7. Keep chain properly tensioned at all times.
NOTE
All chains require frequent adjustments.
Guide bar
adjuster hole
Clutch cover
Adjusting screw
Proper tension Improper tension
Unlock chain brake
Brake connector
Nuts
Adjuster pin
Clutch
Brake band
Direction to
tension the chain
Guide bar studs