Every Day; Wear Check; Air Filter Check; Spark Plug Check - Cobra PRO Instrucciones De Seguridad Y De Funcionamiento

Safety and operating instructions
Before starting maintenance on the machine, clean
♦
it in order to avoid exposure to hazard substances.
See "Dust and fume hazards"
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.
After each service, check that the machine's
♦
vibration level is normal. If not, 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 tool retainer is not worn and that it
♦
functions as it should. Never use the equipment
if you suspect that it is damaged.
Check that the O-ring on the oil plug is undamaged
♦
and seals properly.
Check that the oil plug is tight regularly.
♦
♦ Check for wear in the tool bush.
♦ 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:

Wear check

If a inserted tool with a worn shank is used, machine
vibration will increase. Avoid such vibration by
checking for shank wear before mounting the
insertion tool on the machine.
20
Use the shank gauge that corresponds to the
♦
dimension of the inserted tool shank. If the gauge
can be inserted up to point A in the tool bush (point
B) then the tool bush must be replaced
immediately.

Air filter check

A clogged air filter will eventually cause damage to
the engine. Check the air filter regularly.
1. Unscrew the air filter cover.
2. Tap the air filter carefully against the palm of your
hand. If the air filter is very dirty, it must be
replaced. Never wash the air filter.
3. Clean filter container.

Spark plug check

If the spark plug electrodes are very dirty or burnt
you should replace the spark plug. You will find the
spark plug under the service cover, mounted in the
cylinder head. See the section "Main parts" for
position of the spark plug.
Only use Champion RCJ8 and make sure that the
electrode gap is 0.6-0.7 mm before fitting the spark
plug.

Hammer mechanism oil check

The machine has a natural oil consumption and the
oil level in the impact unit should be checked every
day. The machine must be upright when performing
the oil check. The oil level should be at the same
height as the filling pipe.
© 2010 Atlas Copco Construction Tools AB | No. 9800 0956 90a | 2010-01-01
COBRA PRO, TT, TT-AWD
Original instructions