Table 6: Tightening Torque For Standard Nuts - ABB HT610874 Operation Manual

Operation Manual / A130-M.. - A145-M..
3 Removing and Installing / 3.3 Installing the turbocharger
Observe the instructions for the fastening variant at hand.
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¡
Fastening the turbocharger with a standard nut →39
¡
Fastening the turbocharger with a clamping nut →40
3.3.4 Fastening the turbocharger with a standard nut
Fit the nuts and tighten them according to variant 1 or 2 in the table below.
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Product Through hole in
bearing casing
[mm]
A130 Ø 17
A135 Ø 21
A140 Ø 25
Table 6: Tightening torque for standard nuts
**) When the turbocharger is mounted on the engine support, the bolt threads and screw
heads must be lightly oiled (assumed friction coefficient µ = 0.12 for tightening torque)
Remove the lifting gear.
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© Copyright 2022 ABB. All rights reserved.
Fixing screws Variant 1: Tightening
[mm] torques [Nm] **)
M16
M20
M24
HZTL4031_EN
(A130 - A140)
(A140 and A145)
Variant 2: Hy-
draulic pre-ten-
sioning forces [kN]
280
560
960
Rev.P
110
175
250
February 2022