◆
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.
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.
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 must be at
the same height as the filling pipe. When filling,
check that the sealing is undamaged and tighten
properly.
Use only Atlas Copco IMPACT-OIL.
Every month
Gearbox oil level check
1. The level in the gearbox is checked by
unscrewing the oil plug using the spark plug
wrench.
2. Fill the oil using an oil can to avoid spilling. The
oil level is correct when it reaches the lower
edge of the filling hole when the machine is
standing upright. The volume of the gearbox is
0.1 litre. Use only Atlas Copco IMPACT-OIL.
3. When finished filling, screw back the oil plug
with a torque of 2 Nm.
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.
Service
The machine indicates when service is needed by
means of the top cover LED service indicator. With
continuous use of operation, leave the machine for
service according to the following service interval:
•
Every 150 hours of operation (6 months)
Service must for safety reasons be performed by
authorised personnel at an authorised workshop.
Also, only authorised personnel are allowed to
connect to the machine's ECU and, furthermore,
after each service it is adviceable to check the
speed (r.p.m) and make a simple check of the
vibration levels of the machine. The service kits
needed can be found in the Spare parts list.
COBRA PROi Safety and operating instructions
© Construction Tools PC AB | 9800 1758 01 | 2017-01-10
Original instructions
17
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