Echo PPF-280 - Manual (Page 29)

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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.
IMPORTANT
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.
IMPORTANT
Check bar Part Number on your Power Pruner. Chain and guide bar gauge size must be identical. Use Bar/Chain
combinations shown in table above.
Power Pruner B&C Combinations
Bar P/n Chain P/n Chain Type Links Pitch gauge
narrow Kerf
10" narrow bar P/N
10a4CD3739
90s39CQ 90 39 3/8" 0.043
12" narrow bar P/N
12a4CD3744
90s44CQ 90 44 3/8" 0.043
regular
10" regular bar P/N
10a0CD3739
91VXl39CQ 91 39 3/8" 0.050
12" regular bar P/N
12a0CD3744
91VXl44CQ 91 44 3/8" 0.050
B
a