3512B and 3516B Generator Set Engines with Dynamic Gas Blending Air Inlet and Exhaust Lines Caterpillar


Air Inlet and Exhaust Lines
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Illustration 1g03486899
Rear view


Illustration 2g03486898
Bolt tightening sequence

Table 1
Specification for 446-5030 Air Lines Gp 
Item  Qty  Part  Specification Description 
16  6V-3917 O-Ring Seal  Before assembly, lubricate the bore lightly with 5P-3975 Rubber Lubricant. 
3J-5389 Plug  Before assembly, apply Loctite C5A Copper Anti-Seize to the threads.
Torque to 20 ± 5 N·m (177 ± 44 lb in)
6V-1943 High Temperature Bolt  Before assembly, apply Loctite C5A Copper Anti-Seize to the threads and bearing surfaces.
Torque to 55 ± 10 N·m (41 ± 7 lb ft)
10  6J-0934 Bolt  Use the following procedure in order to assemble the aftercooler assembly and tighten the bolts:
1. Assemble the seals to the aftercooler core.
2. Temporarily secure the bottom seal to the aftercooler with tape. Do not use an adhesive, a silicone lubricant, or any other lubricant for retention of the seal.
3. Assemble the aftercooler with seals to the inlet manifold.
4. Inspect the bottom seal in order to ensure that the seal is seating correctly in the recess.
5. Install the aftercooler cover.
6. Inspect the upper seal in order to ensure that the seal is seating correctly in the recess.
7. Install the cover bolts. Hand tighten the cover bolts.
8. Tighten the bolts in a numerical sequence that is shown in Illustration 2 to 24 N·m (18 lb ft).
9. Again, tighten the bolts in a numerical sequence that is shown in Illustration 2 to 47 N·m (35 lb ft).
10. Remove the tape. 
12  6V-5101 O-Ring Seal  Before assembly, lubricate the bore lightly with 5P-3975 Rubber Lubricant. 

Information System:

3512B and 3516B Generator Set Engines with Dynamic Gas Blending Air Inlet and Exhaust Lines
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