Drilling Deep Holes; Regular Care; Air Filter; Gas Duct - Atlas Copco COBRA COMBI Instrucciones De Seguridad Y Para El Operario

Cobra Combi & Standard
Collaring
With the engine idling, press the machine and tool
against the spot where you wish to drill. Increase
the engine speed once the drill bit has collared a
footing in the rock (or other material).
Grip the side handle for better control of the
machine.

Drilling deep holes

1. First use a short drill and then fullly drill into
the hole.
2. Then change to a longer drill with a slightly
smaller bit diameter (approx. 1 mm smaller).

Regular care

Air filter

In the event of continuous use, check and change
the filter at least every shift.
1. Unscrew the filter cover.
© 2005 Atlas Copco Construction Tools AB
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No 9800 0636 90 2005-09-16
Safety and operating instructions
2. Carefully strike the filter against the palm of
your hand. Extremely dirty filters must be
replaced. The filter must never be washed.

Gas duct

The gas duct must be checked regularly for carbon
deposits, and cleaned if necessary.
1. Pull the starting handle until the arrow in the
centre of the flywheel (which can be seen
through the fan cover) points upwards. This
indicates that the engine piston is in the upper
position.
2. Unscrew the gas duct valve
and take out the cleaning
rod. Clean the duct and
cleaning rod using the
cleaning needle provided.
3. Clean the cleaning thread
4. Clean the channel using the cleaning needle
provided.
5. Check that the ball in the gas duct valve is not
stuck.
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