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16 X7702091009
© 02/2014 ECHO Inc.
ASSEMBLY PPT-280
3. Pull upper tube (F) out of fiberglass lower tube 127-152 mm
(5-6 in.), then slide (F) back into fiberglass lower tube
exposing inner drive shaft (G). Align and join star shaped
drive end of inner drive shaft (G) with cutting attachment
shaft (H).
4. Align ridges (J) on upper tube with seams in cutting
attachment.
5. Slide together, aligning locator hole (D) in cutting
attachment with locating hole (I) in upper tube.
6. Install and tighten locator screw (D). Tighten two (2) cutting
attachment screws (C).
7. Extend upper tube to desired length. Tighten clamp knob (E)
turning clockwise.
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.
G
J
G
H
D
I
C
A
B