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Adjusting chain tension – Echo CS-271T C21112001001 - C21112999999 User Manual

Page 13

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11

CS-271T

4. Mount guide bar on stud 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 (and spiked bumper; option) over the
guide bar stud. Ensure chain tension adjuster pin
fits into the guide bar adjuster hole, brake band
is positioned around clutch drum. Tighten clutch
cover nut finger 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 nut finger 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 nut 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 a clutch cover nut, if necessary.

3. Hold the bar nose up, and turn the adjuster

screw clockwise until chain fits snugly against
underside of the bar.

4. Tighten a nut with the bar nose held up.

5. Pull the chain around the bar by hand. Loosen

the adjustment if you feel tight spots.

6. When chain is properly tensioned, tighten clutch

cover nut securely - 20 to 23 N·m (175 to 200
in. lb.).

7. Keep chain properly tensioned at all times.

Adjusting screw

Proper tension

Improper tension

Unlock chain brake

Direction to tension the chain

Guide bar
adjuster hole

Clutch cover

Nut

Adjuster pin

Clutch

Guide bar stud

Spiked bumper; option

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