Ribiland GCS2500 Bedienungs- Und Wartungsanleitung Seite 33

1. After starting the engine, run the chain at medium speed and see if
chain oil is scattered off as shown in the figure.
2. The chain oil flow can be changed by inserting a screwdriver in the
hole on bottom of the clutch side.
3. Adjust according to your work conditions.
4. The oil tank should become nearly empty by the time fuel is used up.
Be sure to refill the oil tank every time when refueling the chainsaw.
4.5.3- Adjusting the carburetor
The carburetor on your unit has been factory adjusted, but may require
fine tuning due to a change in operating conditions.
Before adjusting the carburetor, make sure that the provided air/fuel
filters are clean and fresh and the fuel properly mixed.
When adjusting, take the following steps:
NOTE: Be sure to adjust the carburetor with the bar chain attached.
1. H and L needles are restricted within the number of turn as shown below.
H needle : -1/4
L needle : -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
4.5.4- Chain brake
The chain brake is a device which stops the chain instantaneously if the
chain saw recoils due to kickback.
Normally, the brake is activated automatically by inertial force. It can
also be activated manually by pushing the brake lever (left-hand
guard) down toward the front.
When the brake operates, a yellow cone pops up from the base of the brake lever.
Releasing the Brake
Pull the brake lever up toward the left-hand handle until it clicks into place.
WARNING - When the brake operates, release the throttle lever to slow down the engine speed.
Continuous operation with the brake engaged will generate heat from the clutch
and may cause trouble.
- At machine inspection prior to each job, check the operating condition of the
brake following the steps:
1. Start the engine and grasp the handle securely with both hands.
2. Pulling the throttle lever to maintain the chain operation, push the brake lever
(left-hand guard) down toward the front using the back of your left hand.
3. When the brake operates and the chain is stopped, release the throttle lever.
4. Release the brake.
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