Zenoah GZ400 manual Fine adjustment of the idling speed T F8-7, Chain Brake, How to confirm

F8-7

F8-8

F8-9

English

8. Operation

Fine adjustment of the idling speed T (F8-7)

Adjust the idle speed with the T-screw. If it is necessary to readjust, turn the T-screw clockwise while the engine is running, until the chain starts to rotate. Then turn counter-clockwise until the chain stops. A correctly adjusted idle speed setting occurs when the engine runs smoothly in every position. It should also be good margin to the rpm when the chain starts to rotate.

WARNING

Contact your servicing dealer, if the idle speed setting cannot be adjusted so that the chain stops. Do not use the chain saw until it has been properly adjusted or repaired.

(1) T-screw

■CHAIN BRAKE

This machine is equipped with an automatic brake to stop saw chain rotation upon occurrence of kickback during saw cutting. The brake is automatically operated by inertial force, which acts on the weight fitted inside the front guard.

This brake can also be operated manually with the front guard turned down to the guide bar.

To release the brake, pull up the front guard toward the front handle till a “click” sound is heard. (F8-8)

IMPORTANT

[Caution]

Be sure to confirm brake operation during daily inspection.

How to confirm:

1)Turn off the engine.

2)Holding the chain saw horizontally, release your hand from the front handle, hit the tip of the guide bar to a stump or a piece of wood, and confirm brake operation. Operating level varies by bar size. (F8-9)

In case the brake is not effective, ask our dealer inspection and repairing.

The engine, If being kept rotated at high speed with the brake engaged, heats the clutch, causing a trouble. When the brake is operated while in operation,

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