BREATHER AS 2276221 - Caterpillar

Installation Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     138-7575     Link Bracket     2    
B     6V-4876     Lubricant     -    
C     8T-3096     Hand Tap     1    
D     6V-6640     Sealant     -    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Thoroughly clean the mating surfaces of the cylinder head and the cylinder block.
Clean all 26 head bolt holes on the cylinder block with Tooling (C) .
After cleaning the threads, remove any debris from the head bolt holes on the cylinder block with a vacuum hose.
Visually inspect the head bolt holes on the cylinder block for thread damage.
If a damaged head bolt thread is observed, repair the damaged head bolt thread with a Heli-Coil thread repair kit.
Inspect the cylinder head and the cylinder block for flatness. Refer to Guideline for Reusable Parts and Salvage Operations, SEBF8162, "Procedure to Measure and Salvage Cylinder Head Assemblies and Related Components".
Install the correct cylinder head gasket on the cylinder block.Note: To avoid damage to the cylinder head gasket, use guide bolts of an appropriate size to install the cylinder head.
Attach Tooling (A) and a suitable lifting device to the cylinder head. The weight of the cylinder head is approximately 184 kg (405 lb).
Illustration 1 g01801014
Install cylinder head (22) .
Install new cylinder head bolts (20) . If the engine is equipped with a compression brake, then also install new head bolt studs.
Lubricate the bolt threads, the underside of the bolt heads, and the washers with Tooling (B) prior to assembly. Follow Step 12 for the correct tightening procedure.
Illustration 2 g00950659
Tighten the cylinder head bolts according to the following procedure:
Tighten bolt (1) through bolt (26) in a numerical sequence to a torque of 170 10 N m (125 7 lb ft).
Tighten bolt (1) through bolt (26) again in a numerical sequence to a torque of 170 10 N m (125 7 lb ft).
Place a mark on bolt (1) through bolt (26) . Rotate bolt (1) through bolt (26) in a numerical sequence for an additional 120 5 degrees (1/3 turn).
Loosen bolt (1) through bolt (26) until the washers are loose under the bolt heads.
Tighten bolt (1) through bolt (26) in a numerical sequence to a torque of 170 10 N m (125 7 lb ft).
Tighten bolt (1) through bolt (26) again in a numerical sequence to a torque of 170 10 N m (125 7 lb ft).
Place a mark on bolt (1) through bolt (26) . Rotate bolt (1) through bolt (26) in a numerical sequence for an additional 120 5 degrees (1/3 turn).
Tighten bolt (27) through bolt (34) in a numerical sequence to a torque of 55 10 N m (41 7 lb ft).
Illustration 3 g01018718
View A-ANote: Lubricate the bores for the cup plugs with Tooling (D) prior to installing the cup plugs. The cup plugs