Operating The Engine; Starting The Engine; Adjusting The Carburetor - Hitachi CS40EM Bedienungsanleitung

6. Operating the Engine

WARNING
• It is very dangerous to run a chainsaw that
mounts broken parts or lacks any parts.
Before starting engine, make sure that all the
parts including bar and chain are installed prop-
erly.

STARTING THE ENGINE

1. Fill fuel and chain oil tanks respectively, and tight-
en the caps securely.
2. Set the switch to"I"position. Press the decom-
pression valve (3).
3. Pull choke knob fully to choked position.
This will automatically lock the throttle in
starting position.
NOTE
If engine does not start easily, pull choke knob fully
and return it.
This will lock the throttle lever in starting position. Pull
recoil starter.
NOTE
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. While holding the saw unit securely on the ground,
pull the starter rope vigorously.
WARNING
• Do not start the engine while the chain saw
hangs in one hand. The saw chain may
touch your body. This in very dangerous.
GB-10
(1) Chain oil
(2) Fuel
(3) Decompression valve
(1) Switch
(2) Throttle lever
(3) Throttle interlock
Choke knob
5. When you hear the engine want to start, with the
safety trigger pressed pull throttle trigger. This will
release the throttle from starting position to run po-
sition and will return the choke knob to run position
automatically.
6. Allow the engine to warm up with the throttle lever
pulled slightly.
WARNING
• Keep clear of the saw chain as it will start rotat-
ing upon starting of engine.
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.
After starting the engine, run the chain at medium
speed and see if chain oil is scattered off as shown in
the figure.
Chain oil
The chain oil flow can be changed by inserting a
screwdriver in the hole on bottom of the clutch side.
Adjust according to your work conditions.
NOTE
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 saw.

ADJUSTING THE CARBURETOR

The carburetor on your unit has been factory adjusted,
but may require fine tuning due to a change in operat-
ing 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 at-
tached.
adjusting
(1) L needle
(2) H needle
(3) Idle adjusting screw