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強鹿柴油機渦輪增壓器油封泄漏檢查
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John Deere約翰迪爾強鹿柴油機渦輪增壓器油封泄漏檢查
Seals are used on both sides of the turbocharger rotor
assembly. The seals are used to prevent exhaust gasses
and air from entering the turbocharger housing. Oil
leakage past the seals is uncommon but can occur.
A restricted or damaged turbocharger oil return line can
cause the housing to pressurize, causing oil to leak by the
seals. Additionally, intake or exhaust restrictions can
cause a vacuum between the compressor and
turbocharger housing, causing oil to leak by the seals.
1. Remove exhaust pipe (shown removed) and crossover
tube (A).
2. Inspect the turbine casing and crossover tube for
evidence of oil leakage.
If oil leakage is present, perform the following:
· Inspect turbocharger oil return line (B) for kinks or
damage. Replace if necessary.
· Check the air intake filter, hoses, and crossover tube
for restrictions.
· Check the exhaust system for restrictions to include
position of exhaust outlet.
3. Perform necessary repairs and repeat test.