3512B Oil Well Servicing Engines Caterpillar

Illustration 1	g00281371
3512B Right Side View (Typical Example)

Illustration 2	g00280590
Bolt Tightening Sequence (3512B)

(1) Apply 4C-5597 Anti-Seize Compound to the threads and tighten the plug to the following torque. ... 20 ± 5 N·m (15 ± 4 lb ft)

(2) Tighten the bolts for the aftercooler according to the following procedure.

1. Assemble seals to the aftercooler core.

2. Temporarily secure the bottom seal with tape. Do not use an adhesive, a silicone lubricant, or any other lubricant for retention of the seal.

3. Assemble the aftercooler with the seals to the inlet manifold.

4. Inspect the bottom seal in order to ensure correct seating in the recess.

5. Install the aftercooler cover.

6. Inspect the upper seal in order to ensure correct seating in the recess.

7. Install the cover bolts and hand tighten the bolts.

8. Tighten the bolts according to the numerical sequence to the following torque.

   Torque for bolts ... 24 N·m (18 lb ft)

9. Tighten the bolts again according to the numerical sequence to the following torque.

   Torque for bolts ... 47 N·m (35 lb ft)

10. Remove the tape.