Yanmar 4BY, Руководство по обслуживанию

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TURBOCHARGER
BY Service Manual 9-9
Repair
REPAIR
Turbocharger Removal
IMPORTANT
Observe strict cleanliness procedures at all
times when working on the turbocharger.
Never leave connections for oil inlets or
outlets unprotected. Foreign bodies in the
bearing housing will lead to turbocharger
breakdown.
Figure 9-3
IMPORTANT
NEVER change the length of the wastegate
control rod without doing it in coordination
with a charge pressure test. (See
Measuring Charge Pressure on page 9-7.)
Doing so will cause incorrect boost
pressure resulting in poor performance or
engine damage, and can void all warranty.
1. Disconnect wastegate control rod
(Figure 9-3, (1)) .
2. Remove the insulating cover (Figure 9-3, (2)) .
3. Disconnect the lubrication supply line
(Figure 9-3, (3)) and return line
(Figure 9-3, (4)) from the turbocharger.
4. Remove air filter (Figure 9-3, (5)) .
5. Loosen turbocharger-to-mixing elbow clamps
(Figure 9-3, (6)) and pull elbow away from
turbocharger.
Figure 9-4
6. Disconnect charge air pipe (Figure 9-4, (1))
from turbocharger.
7. Remove four bolts (Figure 9-4, (2)) and remove
turbocharger from exhaust manifold.
8. Remove gasket (Figure 9-4, (3)) .
000 3 7 8 6
(
3
)
(4)
(1)
(2)
(6)
(5)
000 3 7 8 7
(2)
(1)
( 3 )