Assignment on Turbocharger removing and installing (ABB A175-M)
Present by Ariful Islam
Id: DECPCL9149
Weights of Assemblies
Position
01
02
03
04
05
06
07
08
09
Component
Radial air suction branch
Wall insert
Diffuser
Compressor casing
Cartridge group
Turbine diffuser
Cover ring
Nozzle ring
Gas inlet casing, radial
A175-M [kg}
120
210
30
430
750
80
40
17
170
Part Number
27027
A 175-M
M20
220Nm
Axial clearance to a prior of assembly
Product
A175-M
Axial clearance A
[mm]
0.35 … 0.69
Removing the compressor casing
Removing the cartridge group
Removing the nozzle ring
Installing nozzle ring
Part number
56014
Table: Tightening torque (56014)
A175-M
M10
50 Nm
Part number
57005
Table: Tightening torque (57005)
A175-M
M16
200 Nm
Part number
61069
Table: Tightening torque (61069)
6. Coat threads of screws (61069) with high-temperature grease
7. Fit and tighten screws (61069)
A175-M
M16
200Nm
Installing the cartridge group
Part number
61059/42128
86505
25013
A175-M
M24
490 Nm
M18*1.5
150 Nm
M10
40 Nm
Table: Tightening torque (61059/42128/86505/25013)
1.
2.
3.
4.
5.
6.
Coat thread of screw (61059) and two bolts for the nuts (42128) with high-temperature grease.
Secure cartridge group with screw (61059) and nuts (42128).
Fit spinner nose cone (25012) with screw (25013) and washer (25014) and tighten.
Remove the lifting gear.
Screw in and tighten speed sensor (86505) and new O-ring (86506).
Insert cable connector (86515).
Installing the compressor casing
Part number
61037
61037 (nuts that are difficult to access)
61090
A175-M
M24
490 Nm
Pre-tightening torque 40 Nm
Tightening angle 45 degree (-+ 5)
M24
50 Nm
Table: Tightening torque (61037/61090)
1. Distributed evenly around the circumference, screw the press-off nuts (61090) onto the studs of
the bearing casing and turn them by hand until they are at the end of the thread.
2. Grease the new O-ring (42012) and fit it.
3. Fasten lifting device (90190/90195) to compressor casing (72000) and secure to crane.
4. Position compressor (72000). Tighten nuts (61037) crosswise.
5. Remove lifting device (90190/90195).
6. Tighten the three press-nuts (90190) against compressor casing (72000) by applying the
corresponding tightening torque.
Part number
77015
A175-M
M6
10Nm
Table: Tightening torque (77015)
1. Position diffuser (79000) with swivel lifting eye (90235) on wall inset (77000).
2. Attach diffuser with (77015).
3. Grease the new O-ring (77040) and fit it.
Part number
72011
A175-M
M24
1000 Nm
Table: Tightening torque (72011)
1. Remove lifting device (90190/90195).
2. Slide wall inset (77000) onto compressor casing up to stop and remove guide stud (90329).
3. Secure wall inset with screws (72011) and washers (72008).
Axial clearance after assembly
Product
A175-M
Axial clearance A
[mm]
0.35 … 0.69
Removing and installing turbine end nozzle ring
Part number
61009
Tighten crosswise in stages
Table: Tightening torque (56014/61009)
A175-M
M20
100
240
380
1. Coat threat of new screws (56014) with hight-temperature grease.
Secure nozzle ring (56001) with screws (56014) and new locking washers (56015) at gas inlet
casing (51001).
2. Fix new spiral-wound gasket (61014) in groove of gas casing (61001) at three evenly distributed
points with a little superglue (such as “Loctite 454 Gel”).
3. Fit two guide studs (90321) in the upper part of the gas outlet casing (61001).
4. Coat threads of screws () with high-temperature grease.
5. Loop round inlet gas inlet casing (51001) and, using ligting gear, slide over guide studs until at
the gas outlet casing (61001) and secure with screws (61009).
6. Remove the guide stud (90321).
7. Fit remaining scres (61009), then tighten all screws (61009).
8. If present: Fit conneting pipe for turbine cleaning.
Refit dismantled insulation
Table of tightening torque
Thread size and tightening torque (Nm):
Position
Part number
A175-M
1
82005
2
77015
3
61036
4
61037
5
61090
6
61059
7
61069
8
63001
9
56014
10
61009
11
57005
12
42059
13
72011
14
72027
15
72026
16
25013
17
86505
M22*1.5
80
M6
10
M24
80
M26
490
M24
50
M24
490
M16
200
M18
240
M10
50
M20
380
M16
200
M16
200
M24
1000
M20
220
M20
50
M10
40
M18*1.5
150