PPT-280

MAINTENANCE

 

 

Guide Bar and Saw Chain Replacement

Never try to replace or adjust guide bar and saw chain with engine running. Always disconnect spark plug wire before servicing guide bar and saw chain. This saw chain is VERY sharp, wear heavy gloves to protect your hands when handling it. Wear eye protection meeting CE or ANSI specification Z87.1.

Guide Bar Replacement / Installation

Level 2.

1.Remove two (2) guide bar nuts (A) and sprocket guard screw (B), and turn saw chain tension adjustment screw (C) counterclockwise to release tension.

2.Remove sprocket guard (D).

3.Remove guide bar and saw chain from gear case and sprocket.

4.Remove chain from guide bar and check guide bar for damage and excessive or uneven wear. Replace guide bar if necessary

5.Install chain on guide bar with cutters on top of bar facing toward bar tip.

6.Install guide bar and chain on gear case, engaging chain with drive sprocket (E).

7.Turn tension adjustment screw (C) to ensure chain tension adjuster pin fits into the guide bar adjuster hole.

8.Install sprocket guard (D), and tighten guide bar nuts finger tight and install guide bar cover screw (B).

9.Adjust chain tension.

D B

C

A

E

Sprocket Guard Cleaning

1.Remove two (2) guide bar nuts (A), and unscrew sprocket guard screw (B).

2.Remove sprocket guard (D).

3.Gently brush debris from inside sprocket guard and from around sprocket.

4.Turn tension adjustment screw (C) to ensure chain tension adjuster pin fits into the guide bar adjuster hole.

5.Install sprocket guard (D), tighten guide bar nuts (A) finger tight, and fasten sprocket guard screw (B).

6.Adjust chain tension.

D B

C

A

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© 02/2014 ECHO Inc.

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Echo PPT-280 Guide Bar and Saw Chain Replacement, Guide Bar Replacement / Installation, Sprocket Guard Cleaning