Zenoah G500AVS Chain Brake, How to confirm, Stopping the Engine, Carburetor anti-freeze mechanism

Page 10

G455AVS / G500AVS

1.H and L needles are restricted within the number of turn as shown below.

 

G455AVS

G500AVS

H needle :

-1/4

-1/4

L needle :

-1/4

-1/4

2.Start the engine and allow it to warm up in low speed for a few minutes.

3.Turn the idle adjusting screw (T) counterclockwise so that the saw chain does not turn. If the idling speed is too slow, turn the screw clockwise.

4.Make a test cut and adjust the H needle for best cutting power, not for maximum speed.

■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.

[Caution]

Be sure to confirm brake operation during daily inspec- tion.

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 op- eration. Operating level varies by bar size.

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

If the engine keeps rotating at high speed with the brake engaged, the clutch will overheat causing trouble. When the brake engages during operation, immediately release the throttle lever to stop the engine.

GB-10

■STOPPING THE ENGINE

1.Release the throttle lever to allow the engine to idle for a few minutes.

2.Set the switch to the “O” (STOP) position.

Carburetor anti-freeze mechanism

Operating chain saws in temperatures of 0 – 5°C at times of high humidity may result in ice forming within the car- buretor, and this in turn may cause the output power of the engine to be reduced or for the engine to fail to op- erate smoothly.

This product has accordingly been designed with a ven- tilation hatch on the right side of the surface of the cylin- der cover to allow warm air to be supplied to the engine and to thereby prevent icing from occurring.

Under normal circumstances the product should be used in the normal operating mode, i.e., in the mode to which it is set at the time of shipment. However when the possibility exists that icing may occur, the unit should be set to operate in the anti-freeze mode before use.

(1)

Air cleaner cover

(4)

Normal operating mode

(2)

Shutter plate

(5) Anti-freeze mode

(3)

Screw

(6)

Screen

WARNING

•Continuing to use the product in the anti-freeze mode even when temperatures have risen and returned to normal, may result in the engine failing to start prop- erly or in the engine failing to operate at its normal speed, and for this reason you should always be sure to return the unit to the normal operating mode if there is no danger of icing occurring.

■HOW TO SWITCH BETWEEN OPERATING MODES

Snow protector

1.Flip the engine switch to turn off the engine.

2.Remove the air cleaner cover from the cylinder cover

3.Loosen a screw and remove the screen on the back of the air cleaner cover.

4.Turn the screen a half and reinstall to the cover.

When using the saw with the anti-freeze mode, frequently check the screen and keep it clean of saw dust.

NOTE

When using the unit at times when it is snowing. Zenoah recommends that you also use a snow protector effec- tive in preventing the air filter from freezing (e.g., the separately-sold Z2881-98610 snow protector).

Page 9 Page 11
Image 10
Page 9 Page 11
Contents G455AVS / G500AVS GB-145.0 cm3 102.5 dBA 110 dBA Wear head, eye and ear protectionLpA LwA 49.3 cm3 103.6 dBA 110 dBAContents Always shut off the engine be- fore setting it down For safe operationKickback may occur when the nose or tip of the guide bar Kickback Safety Precau Tions for Chain SAW UsersGB-5 Position Fuel cap Explanation of Symbols on the MachinePort to refuel MIX Gasoline Port to top up chain oilStandard saw unit package contains the items as illustrated Installing Guide Bar and Saw ChainPay attention to the correct direction of the saw chain Fuel and Chain Oil Starting the Engine Adjusting the CarburetorOperating the Engine Checking the OIL SupplyChain Brake How to confirmHOW to Switch Between Operating Modes Stopping the EngineGuard Against Kickback SawingBefore proceeding to your job Felling a TreeMaintenance After Each USE MaintenancePeriodical Service Points Maintenance of Saw Chain and Guide Bar Disposal Troubleshooting GuideCase 2. Lack of power/Poor acceleration/ Rough idling Reverse the bar occasionally to prevent partial wearPower unit SpecificationsLimited warranty Cutting head

G500AVS specifications

The Zenoah G500AVS is a standout product in the world of high-performance engines, specifically designed for a wide range of applications, including remote-controlled vehicles, industrial tools, and gardening equipment. This engine combines power, efficiency, and advanced technology to meet the demands of both hobbyists and professionals.

One of the primary features of the G500AVS is its powerful 50cc displacement, which enables it to deliver an impressive output of torque and horsepower. This capability makes it suitable for applications requiring substantial lifting and cutting strength, such as lawn mowers and chainsaws. The engine is equipped with a lightweight construction, allowing for easier handling without compromising on performance.

The G500AVS utilizes a unique anti-vibration system (AVS) that significantly reduces vibrations during operation. This system not only enhances user comfort but also contributes to the longevity of the engine by minimizing wear and tear on crucial components. The incorporation of AVS technology is a key selling point, particularly for users who spend extended periods operating equipment powered by this engine.

In terms of fuel efficiency, Zenoah has engineered the G500AVS with a fuel-efficient design that minimizes consumption while maximizing output. This is essential for users looking to reduce operational costs without sacrificing performance. Additionally, the engine features an easy-start system, making it user-friendly and accessible for operators of all skill levels.

The G500AVS also incorporates advanced ignition technology, which provides reliable starting and consistent performance in various environmental conditions. This feature is essential for ensuring that the engine performs optimally, regardless of temperature or humidity levels.

Another notable characteristic of the Zenoah G500AVS is its robust build quality. The engine is designed to withstand the rigors of demanding applications, offering durability that is crucial for professionals who rely on their equipment to complete jobs effectively and efficiently.

In summary, the Zenoah G500AVS engine is a top-tier option for anyone in need of a reliable, powerful, and efficient engine. Its combination of advanced features, including an anti-vibration system, fuel efficiency, easy starting, and durable construction, make it an appealing choice for both hobbyists and professionals alike. Whether for recreational use or serious industrial applications, the G500AVS stands out as a model of engineering excellence in the engine market.
Top Page Image Contents