5.5. Turbocharger
5.5.1. Maintenance
The turbochargers do not call for any specific 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 serviced.
Furthermore, a regular check should be kept on charge air and exhaust gas pipes. Any leakage
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, remove compressor casing (Caution: Do not skew it!)
and clean in non-acid solvent, if necessary using a plastic scraper.
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
bearing casing and not on the wheel.
5.5.2. Special hints
It is recommended that the radial and axial clearances of the rotor be checked after every 3,000
hours operation.
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.
- 35 -
EA6O5011
Measuring of axial clearance
(> 0.20mm)
_
Measuring of radial clearance
(> 0.65mm)
_
