Main Parts - Atlas Copco Cobra Combi Al-cyl Instrucciones Para El Operario

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These declared values were obtained by laboratory type
testing in compliance with the stated standards and are not
adequate for use in risk assessments. Values measured
in individual work places may be higher than the declared
values. The actual exposure values and risk of harm
experienced by an individual user are unique and depend
upon the way the user works, the workpiece and work station
design, as well as upon the exposure time and the physical
condition of the user.

Main parts

A. Choke
B. Throttle lever
C. Vibration-dampened handle
D. Engine piston
E. Silencer
F. Intake valve for fl ushing air
G. Compression chamber for fl ushing air
H. Rotation mechanism
I. Tool retainer
J. Air fi lter cover
K. Tank cap
L. Starting handle
M. Power take-off (PTO)
N. Spark plug cover
O. Percussion piston
P. Gas duct
Q. Gas duct valve
R. Function selector
S. Venturi
T. Stop-button
U. Fuel fi lter
Start – stop
Controls (Fig. 3)
A. Vibration-dampened handle
B. Throttle lever
C. Stop button
D. Choke
E. Fuel fi lling
F. Starting handle
Fuel (Fig. 4)
The Cobra uses a mixture of petrol and oil, 1 part
oil to 50 parts petrol (2%).
6 6
!
WARNING
Petrol is highly fl ammable and can in some
instances be explosive. To avoid fi re or explosion
it is important to adhere to the following safety
regulations:
• Do not allow open fl ames near the machine.
• Do not smoke when fi lling up with petrol or
working on the machine.
• Stop the motor when petrol is to be put in.
• Do not use a machine leaking petrol.
• Avoid spilling petrol when fi lling up.
• Check before starting that the tank lid is
secure.
• Protect all skin from contact with petrol.
Two-stroke oil
For the best lubricating results use Atlas Copco's
environmentally friendly two-stroke oil, which has
been specially developed for Atlas Copco's petrol
motor-driven hammering and rock-drilling machines.
If Atlas Copco's two-stroke oil is not available, use a
good-quality two-stroke oil for air-cooled two-stroke
motors (not two-stroke oil for outboard motors).
Contact your nearest Atlas Copco representative for
advice on the correct two-stroke oil.
Start (Fig. 5-7)
Cold start
1. Close the choke – turn the choke control
anticlockwise to position (CHOKE) (Fig. 5).
2. Push the throttle control down and pull in the
starter handle(Fig. 6).
3. When the machine ignites, open the choke a
little clockwise towards position (RUN).
4. Pull in the starter handle. When the machine
starts, slowly turn the choke clockwise towards
position (RUN) during a 2- to 3-minute warm-up
(Fig. 7).
Restarting a warm machine
1. Check that the choke is open (i.e. knob in
position (RUN).
2. Pull the starter handle.
If the machine stops after a short while, or does not
start at all, follow the procedure for cold starting.
If the machine does not start, it may have been
fl ooded (i.e. too much fuel in the combustion
chamber).
Open the choke (RUN position) and try starting the
engine again.
If the machine still does not start, see the section
entitled "Fault fi nding".