16 X7502308206
©7/2015 ECHO Inc.
OPERATION PPF-225
Saw Chain Tension Adjustment
Always disconnect spark plug wire before servicing cutting
attachment. Wear gloves when handling saw chain,
otherwise serious personal injury may result.
To Adjust Saw Chain Tension
1. Move stop switch to STOP position.
2. Disconnect spark plug lead.
3. Loosen two guide bar nuts (A) until finger tight.
Always loosen guide bar nuts before turning the chain tension adjuster, otherwise the clutch cover and
tensioner will be damaged.
4. Hold the bar nose up, and turn the adjuster screw (B) clockwise until the chain fits snugly against the
underside of the bar, as shown. Cold Chain Only - turn adjuster screw CW an additional 1/8 - 1/4 turn.
5. Tighten both guide bar nuts with nose held up. Tighten rear
nut first.
6. Pull the chain around the guide bar by hand. Reduce the
chain tension if you feel tight spots.
7. When chain is properly tensioned, tighten guide bar nuts
securely.
Tighten guide bar nuts to 8 - 9 N•m (71 - 80 in. lbs.) DO NOT
over-tighten nuts. Damage may result
8. Keep chain properly tensioned at all times.
Note: All chains require frequent adjustment.
9. Connect spark plug lead.
OPERATION
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects
away from all openings. Always stop engine, disconnect spark plug, and make sure all moving parts
have come to a complete stop before removing obstructions, clearing debris, or servicing unit.
Operation of this equipment may create sparks that can start fires. This unit is equipped with a spark
arrestor to prevent discharge of hot particles from the engine. Metal cutters can create sparks if the
cutter strikes rocks, metal, or other hard objects. Contact local fire authorities for laws or
regulations regarding fire prevention requirements.
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