Echo CS-2511T Instruction Manual - page 13

11

CS-303T

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 fits into the guide bar  

adjuster hole, brake band is positioned around 

clutch drum. Tighten clutch cover nuts 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 nuts 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 nuts before turning 

the chain tension adjuster, otherwise the clutch 

cover and tensioner will be damaged.

1. Remove spark plug lead. 

2. Unlock the chain brake and loosen a clutch 

cover nuts, 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 both nuts 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 - 9 to 11 N

·

m (80 to 95  

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

Nuts

Adjuster pin

Clutch

Guide bar studs