Turbocharger - Man D 2866 E Operating Instructions Manual

Turbocharger

Maintenance
(by authorized specialist personnel)
The turbochargers do not call for any spe-
cific maintenance.
The only points to be observed are the oil
pipes which should be checked at every
oil change for leakage and restrictions.
The air cleaners should be carefully ser-
viced.
Furthermore, a regular check should be
kept on charge air and exhaust gas pipes.
Any leakages should be attended to at
once because they are liable to cause
overheating of the engine.
When operating in highly dust or oil-laden
atmospheres, cleaning of the air impeller
may be necessary from time to time. To
do this, take compressor housing (Cau-
tion: do not tilt it so that it jams) and
clean it in solvent (diesel oil, petroleum
ether) using a brush.
If the air compressor should be badly
fouled, it is recommended that the wheel
be allowed to soak in a vessel with solvent
and to clean it then with a stiff brush. In
doing so, take care to see that only the
compressor wheel is immersed and that
the turbocharger is supported on the bear-
ing casing and not on the wheel.
Special hints
It is recommended that the radial and
axial clearances of the rotor be checked
after every 3000 hours operation.
Maintenance and care
This precaution will enable any wear of
the bearings to be detected in good time
before serious damage is caused to the
rotor and bearings.
Measuring of axial clearance
A = Measuring point for dial gauge
Measuring of radial clearance
(The radial clearance will be determined
only at turbine end)
A = Measuring point for dial gauge
39
A
A