Doosan AD158TI, Руководство по эксплуатации и техническому обслуживанию

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Main parts maintenance - 163 -
●
Loosely fit the V-band clamp.
Lubricate and install the O-ring seal (41) if
fitted.
Install the compressor cover (8).
Caution :
The compressor wheel blades can be easily
damaged when the compressor housing is
installed.
●
HX50
Install the 2 clamp plates (51), eight lock
washers (54) and tighten the 8 bolts (59) to
the torque value.
●
HX55
Install the V-band clamp (29) and tighten
the lock nut (62) to the torque value.
- HX50/HX55 (V180TI/ V222TI)
Caution :
Make sure the scribe marks are aligned.
7.4.3. Inspection
As the condition of turbocharger depends greatly on how well the engine is serviced, it is very important to
maintain the engine in accordance with the specified maintenance procedure and pay particular attention to
checking oil & air leaks, unusual sound on running.
1) Checking of the rotor for rotating condition
The inspection of the rotor assembly for rotating condition should be performed by the degree of unusual
sound on running. If a sound detecting bar is used, install its tip on the turbocharger housing and increase
the engine revolutions slowly. If a high-pitch sound is heard every 2 ~ 3 seconds or continue, it means that
the rotor assembly is not normal. In this case, as the metal bearing and rotor are likely to be in abnormal
conditions, the turbocharger should be replaced or repaired.
EDV2218155
EDV2218156
HX50 HX55
Trust clearance Nm In-lbs
Lock nut (62) 8.5 75
Bolts (57) 20.3 18