14 X7503196706
© 09/2013 ECHO Inc.
DESCRIPTION CS-450
5. Clutch - Turns drive sprocket when engine rpm is fast enough to provide the power needed for cutting.
Preparation For Use
Saw chain is sharp! Always wear gloves when handling assembly, otherwise serious personal injury
may result.
Using improper replacement components or removing safety devices may result in serious or fatal
injury.
Note: The machine may be delivered with guide bar, tip guard, and
saw chain separated. Install guide bar, tip guard, and saw
chain as follows.

Tip Guard to Bar Instructions

Tools Needed: Two 11 mm (7/16 in.) Wrenches. For saws with tip
guard P/N 2893201 and Symmetrical or Asymmetrical
Low-Kick type (Double Guard) guide bars.
1. Install bolt (A) in rear hole (B) of tip guard and through front
hole (C) in guide bar.
2. IMPORTANT: Dimple (D) in tip guard must engage recess (E)
in guide bar.
3. Securely tighten nut (F) and bolt (A).

Guide Bar and Saw Chain Installation/Removal

Note: Align the brake connector (B) of the sprocket guard to the
groove on the side of the brake lever (Front hand guard).
1. Loosen air cleaner cover knob and remove air cleaner cover.
2. Remove spark plug lead.
3. Move the chain brake lever (A) (Front hand guard) fully
rearward to remove or install the sprocket guard (C).
4. Remove sprocket guard nuts (D) and remove sprocket guard
(C).
5. Remove guide bar and saw chain if necessary.
For more information
scan this QR code.
For more information
scan this QR code.