Drilling; Number Of Revs; Ground Probing; Drilling Deep Holes - Atlas Copco Cobra Combi Sicherheitshinweise Und Betriebsanleitung

Safety and operating instructions

Drilling

1. Before drilling, check that the flushing hole in the
drill steel is not blocked.
2. Stand in a stable position with your feet well away
from the inserted tool.
3. Press the inserted tool against a spot where you
wish to drill.
4. Increase the engine speed once the drill bit has
collered a footing in the material.
5. Grip the side handle for better control of the
machine.

Number of revs

The engine speed is regulated by means of the
throttle lever:
Throttle lever
Lever released
Lever depressed

Ground probing

If the machine is started on the top of long tools such
as probing rods, a starter-cord bracket must be used
to prevent the cord from damaging the fuel tank.

Drilling deep holes

1. Use a short drill and then fully drill into the hole.
2. Change to a longer drill with a slightly smaller bit
diameter (approx. 1mm smaller).

When taking a break

Stop the machine during breaks.
♦
16
Speed
Idling speed
Full engine speed
© 2008 Atlas Copco Construction Tools AB | No. 9800 0636 90b | 2008-08-26
COBRA COMBI, STANDARD
♦ During all breaks you must put the machine away
so that there is no risk for unintentional start.

Maintenance

Regular maintenance is a basic requirement for the
continued safe and efficient use of the machine.
Follow the operating instructions carefully.
♦ Use only authorised parts. Any damage or
malfunction caused by the use of unauthorised
parts is not covered by Warranty or Product
Liability.
♦ When cleaning mechanical parts with solvent,
comply with appropriate health and safety
regulations and ensure there is satisfactory
ventilation.
♦ For major service to the machine, contact your
nearest authorised workshop.

Every day

Before undertaking any maintenance or changing
the inserted tool, turn the machine off.
♦ Perform a general inspection and check that there
are no leaks and no damage.
♦ Check that the O-ring on the oil plug is undamaged
and seals properly.
♦ Check that the oil plug is tight regularly.
♦ Check the insertion tool, make sure that it is sharp
and not worn out.
♦ Change damaged parts immediately.
♦ Replace worn components in good time.
In order to ensure that the machine remains within
the stated vibration level values, the following checks
must be performed: