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Operation Manual / A200-L

9 Disassembly and assembly / 9.11 Dismantling the gas inlet casing

(A280-L)

9.11 Dismantling the gas inlet casing (A280-L)

Fig.47: Dismantling the gas inlet casing (A280-L)

Part number A280-L

51087 840 Nm

Table33: Maximum admissible loosening torque (51087)

u If a threaded stud (51086) shears off when loosening, an ABB Turbocharging Service Sta-

tion should be contacted.

u If a threaded stud (51086) works loose when removing the nut (51087), it should be refit-

ted, after disassembling the gas outlet casing, up to the stop in the gas inlet casing until

hand-tight.

u If the nut (51087) cannot be removed with the maximum permissible loosening torque, it

can be heated or removed with an appropriate tool.

1. Dismantle both halves of the insulation segment(51215) and remove with all fixing ele-

ments.

2. Detach flange connection between gas inlet casing(51001) and bellows.

3. Treat nuts (51087) with rust remover.

4. Loosen crosswise and remove all nuts(51087) except for two opposite nuts. Note max-

imum loosening torque.

5. Loop around the gas inlet casing(51001) with lifting gear.

6. Loosen and remove remaining nuts(51087). Note maximum admissible loosening torque.

7. Fit supports(90481, 90482) on gas inlet casing and put down casing.

Page 90 / 145

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A200-L

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