LOCKNUT 3H3451 - Caterpillar

Illustration 1 g02553359
Illustration 2 g02553361
Bolt tightening sequence
Table 1
Specification for 272-3501 Air Lines Gp
Item Qty Part Specification Description
1 16 216-2211 Clamp Use the following procedure to tighten the clamp bolts:
1. Center the clamps within the marking on the hose.
2. Ensure that the T-bolts of the clamp are spread apart by a minimum of 90 degrees.
3. Torque to 10 2 N m (89 18 lb in).
2 8 6V-3917 O-Ring Seal Before assembly, lightly lubricate the bore with glycerin or an approved equivalent.
3 12 8J-5985 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.
4 16 6V-5101 O-Ring Seal Before assembly, lightly lubricate the bore with glycerin or an approved equivalent.