Ribimex Ribiland PRTRT450 Manuel D'instructions Et D'utilisation page 31

4.
6. When engine has ignited, first push in the choke knob to the first-stage position and then pull the
starter again to start the engine.
7. Allow the engine to warm up with the throttle lever pulled slightly.
Attention! When you attempt to start the machine for the first time or if the tank is completely empty,
you may have to pull the starter rope several times. If the engine fails to start, repeat above steps.
WARNING - Be sure to perform warming-up with the guide bar and the saw chain mounted.
- Keep clear of the saw chain as it will start rotating upon starting of engine.
- Before you start the engine, make sure the saw chain is not contacting anything.
- Do not start the engine while the chain saw hangs in one hand.
The saw chain may touch your body. This in very dangerous.
Note: When restarting immediately after stopping the engine, set the Choke knob in the
first-stage position (choke open and throttle lever in the starting position).
Once the choke knob has been pulled out, it will not return to the operating position
even if you press down on it with your finger. When you wish to return the choke
knob to the operating position, pull out the throttle lever instead.
4.5.2- Checking the oil supply
WARNING - Make sure to set up the bar and the chain when checking the oil supply.
If not, the rotating parts may be exposed. It is very dangerous.
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. Stop engine and screw in both the H and L
needles until they stop. Never force them. Then set
them back to the initial number of turns as follows:
H needle : ¼
L needle : ¼
2. Start the engine and allow it to warm up in low speed at half-throttle for a few minutes.
5.
1.
2.
(1) L needle
(2) H needle
(3) Idle adjustment
screw