© Scania Industrial & Marine Engines
9
Electrical system
Before work is performed on the electrical sys-
tem, turn off the power by the main switch or the
battery disconnect switch.
Also disconnect any external power supply to
auxiliary equipment on the engine.
Arc Welding
Before welding near or on the engine, remove
the battery and alternator cables. Also remove
the control unit connector.
Connect the weld clamp to the component to be
welded, close to the weld location. Never con-
nect it to the engine or in such a way that the
current can pass through a bearing.
After the welding is completed, connect the ca-
bles to the alternator and the control unit before
connecting the batteries.
Lubrication system
Hot oil may cause scalding and skin irritation.
Avoid skin contact with hot oil.
Make sure that the pressure in the lubrication
system is relieved before work is carried out.
Never start or operate the engine with the oil fill-
er cap removed since oil will be ejected force-
fully.
Dispose of used oil through an authorized
waste disposal contractor.
Cooling system
Never open the coolant filler cap while the en-
gine is hot. Steam and hot coolant can come
out forcefully and cause scalding.
If the cooling system must still opened or disas-
sembled while the engine is hot, open the filler
cap very cautiously and slowly to release the
pressure before the cap is removed. Use
gloves since the coolant is still very hot.
Dispose of used coolant through an authorized
waste disposal contractor.
Fuel system
Always use gloves when checking for leaks in
or performing other work on the fuel system. Al-
ways wear eye protection when testing injec-
tors.
Fuel escaping under high pressure can pene-
trate body tissue and cause serious injury.
Never use non-genuine parts in the fuel system
and the electrical system. Genuine parts are
designed and manufactured to minimize fire
and explosion hazard.
Before starting
Install any guards that have been removed be-
fore the engine is started. Check to ensure that
no tools or other objects have been left on the
engine.
Never start the engine unless the air filter is in-
stalled. Otherwise there is a risk of objects en-
tering the compressor wheel or a risk of
personal injury from contact with it.