3500B Locomotive Engines Caterpillar


Turbocharger

Usage:

3512B RR2



Illustration 1g03369736



Illustration 2g03369740

Bolt tightening sequence for 6V-6753 High Temperature Bolt

Table 1
Specification for 379-5341 Turbocharger Gp    
Item     Qty     Part     Specification Description    
1     8     125-5375 Bolt     Torque to
40 ± 3 N·m (30 ± 2 lb ft).    
2     8     6V-6753 High Temperature Bolt     Before assembly, apply Loctite C5A copper Anti-Seize to threads and bearing surfaces.
Use the following procedure in order to tighten the bolts :

1. Tighten the bolts (1) in any sequence to
54 ± 5 N·m (40 ± 4 lb ft).
2. Tighten the bolts (2) in any sequence to
54 ± 5 N·m (40 ± 4 lb ft).    
3     8    
4     16     369-3458 High Temperature Bolt     Before assembly, apply Loctite C5A copper Anti-Seize to threads and bearing surfaces.    
Torque to
40 ± 3 N·m (30 ± 2 lb ft).
5     8     310-2233 Flange Nut     Before assembly, apply Loctite C5A copper Anti-Seize to threads and bearing surfaces.
Turbo-exhaust manifold joint tightening procedure:

1. Align joint to get all four flange nuts started on the bolts.
2. Snug up all bolts on the joint.
3. Tighten the bolt (1) to
54 ± 5 N·m (40 ± 4 lb ft).
4. Tighten the bolt (1) on diagonally apposite to
54 ± 5 N·m (40 ± 4 lb ft).
5. Tighten remaining the bolts (2) to
54 ± 5 N·m (40 ± 4 lb ft).
6. Repeat procedure steps 3-5 to verify that bolts tighten to
54 ± 5 N·m (40 ± 4 lb ft).    
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