Saw Chain Tension Adjustment - Echo Power Pruner PPT-2400 Operator's Manual

14

saw chaIn tensIon adjustment

WARNING
Always disconnect spark plug wire before servicing cutting attach-
ment. 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 gearcase cover nuts (A) until finger tight.
4. Hold the bar nose up, and turn the adjuster screw (B) clockwise un-
til 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 gearcase cover nuts with nose held up. Tighten rear
nut first.
6. Pull the chain around the guide bar by hand. Reduce the chain ten-
sion if you feel tight spots.
7. When chain is properly tensioned, tighten gear case cover nuts
securely.
ImPoRTANT
Tighten gearcase cover 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.
A
CORRECT
COLD TEN-
SION
CHAIN NEEDS
TENSIONING
Drive Link
Side Link Con-
Tangs Hang-
tacting Bar
ing Out of Bar
B
CORRECT
WARM TEN-
SION
3 mm Between
Side Link and
Bar of Bottom