Echo CS-680 Instruction Manual - Preparation For Use

10

CS-680

   WARNING

Saw chain is sharp! Always wear gloves 

when handling assembly, otherwise serious 

personal injury may result.

GUIDE BAR AND SAW CHAIN  

INSTALLATION/REMOVAL

NOTICE

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 26)

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 forward.

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. 

Unlock chain brake

Guide bar 

adjuster hole

Clutch cover

Nuts

Clutch

Guide bar studs

PREPARATION FOR USE

Clutch cover

Brake lever

(Front hand guard)

Two nuts

Spiked bumper

Two bolts 5 × 12

Guide bar studs

Pin

Hole

Brake band

Adjuster pin