too long time at one point will press the ballast
too deeply.
◆
Release the throttle lever when the machine is
lifted.
When taking a break
◆
Stop the machine during breaks.
◆
During all breaks, 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 maintenance instructions
carefully.
◆
Before starting maintenance on the machine,
clean it in order to avoid exposure to hazardous
substances. See “Dust and fume hazard”.
◆
Never use a pressure washer on the top cover
or inside the breaker housing.
◆
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 repair or service of the machine,
contact the nearest authorised workshop.
Perform service at your nearest authorized
workshop according to Atlas Copco's
recommended service intervals. The service
kits needed for each interval can be found in
the Spare parts list.
Every day
Before undertaking any maintenance or changing
the working tool, turn the machine off.
◆
Perform a general inspection and check that
there are no leaks and no damage, and change
if necessary.
◆
Check for damaged or loose wiring. If found,
contact an authorised workshop.
◆
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 for wear in the tool chuck.
◆
Check the working tool, make sure that it is
sharp and not worn out. Check that the tool
shank is clean.
◆
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 working tool with a worn shank is used,
machine vibration will increase. Avoid such
vibration by checking for shank wear before
mounting the working tool on the machine.
◆
Use the shank gauge that corresponds to the
dimension of the working tools shank. If the
gauge can be inserted beyond point A in the
tool chuck (point B) then the tool chuck must be
replaced immediately.
A
B
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. If the air filter is 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
burned, replace the spark plug. The spark plug is
placed 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 (0.024-0.028 in.)
before fitting the spark plug. Tighten the spark plug
using the correct tightening torque, see Spare
parts list.
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
COBRA TTe
Safety and operating instructions
© Atlas Copco Airpower | 9800 1629 01 | 2018-01-01
Original instructions
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