3500B High Displacement Locomotive Engines Caterpillar


Air Inlet and Exhaust Lines

Usage:

3516B BCK


Illustration 1g03114022
Front view of engine

Table 1
Specification for 147-6619 Air Lines Gp 
Item  Qty  Part  Specification Description 
6V-3917 O-Ring Seal  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.
Torque to 55 ± 10 N·m (41 ± 7 lb ft)


Illustration 2g03114024
Right side view of engine


Illustration 3g03114025
Bolt tightening sequence

Table 2
Item  Qty  Part  Specification Description 
12  9F-2773 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 as shown in Illustration to 24 N·m (18 lb ft).
9. Again, tighten the bolts in a numerical sequence that is shown in Illustration to 47 N·m (35 lb ft).
10. Remove the tape. 
5P-8940 O-Ring Seal  Lubricate the bore lightly with 5P-3975 Rubber Lubricant. 

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