Air Filter Check; Spark Plug Check; Hammer Mechanism Oil Check; Every Month - Atlas Copco Cobra MK1 Sicherheitshinweise Und Betriebsanleitung

Safety and operating instructions
♦ 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.
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. 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.
18
A
Use only Atlas Copco IMPACT-OIL.

Every month

Gearbox oil level check

Before releasing the oil plug remove the six nuts for
the back cover. The level in the gearbox is checked
by unscrewing the oil plug. The oil level is correct
when it reaches to the bottom of the filling hole with
the machine standing upright. The volume of the
gearbox is 0.1 litre.

Repair

Replacing the starter cord

Removing the old starter cord
1. Remove the starting mechanism.
2. Pull out about 40 cm (16 in.) of the cord.
© 2008 Atlas Copco Construction Tools AB | No. 9800 0665 90 | 2008-10-28
COBRA MK1, TT, TT-AWD