ABB A255-L - Fitting the Gas Inlet Casing (A280-L); Fig. 56: Fitting the Gas Inlet Casing (A280-L); Table 37: Tightening Torque (51087)

Operation Manual / A200-L
9 Disassembly and assembly / 9.17 Fitting the gas inlet casing (A280-L)
© Copyright 2021 ABB. All rights reserved. HZTL4036_EN Rev.T December 2021
9.17 Fitting the gas inlet casing (A280-L)
Fig.56: Fitting the gas inlet casing (A280-L)
Part number A280-L
51087 M24
80
1)
Nm
480Nm
Table37: Tightening torque(51087)
1) Pre-tightening torque of the screws
1. Coat threaded stud (51086) with high-temperature grease, screw in up to the stop in the
gas outlet casing (61001) and tighten hand-tight.
2. Loop around the gas inlet casing(51001) with the lifting gear and secure it to the crane.
3. Dismantle and remove supports(90481, 90482) from the gas inlet casing.
4. Push gas inlet casing over the threaded studs up to the gas outlet casing.
5. Coat two nuts with high-temperature grease and fix gas outlet casing in two opposite
positions.
6. Coat remaining nuts with high-temperature grease, fit and then tighten crosswise, ini-
tially to the pre-tightening torque and then to the tightening torque.
7. Remove the lifting gear.
8. Connect the flange of the gas inlet casing and the bellows.
9. Fit the insulation segments(51215).
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