TUBE AS 2348815 - Caterpillar

Optional Parts
2 - 1417164 Plate 2 - 1417165 Adapter 2 - 1417166 Block 2 - 1417167 Elbow16 - 1473737 BoltAction Required
Parts Stock
Remove all 0R6966, 4P4693, 1064557, 1213850, and 1283321 Turbo Groups and all 0R6758, 0R7097, 4P6031, 1020281, and 1330817 Turbo Cartridges from Parts Stock.
Affected Product
See the attached rework procedure.
Service Claim Allowances
Parts Stock
Submit one claim for all 0R6966, 4P4693, 1064557, 1213850, and 1283321 Turbo Groups and all 0R6758, 0R7097, 4P6031, 1020281, and 1330817 Turbo Cartridges removed from Parts Stock.
Affected Product
Allow an additional 4 hours labor for modifying the adapters shown in Illustrations 3 through 6.
Allow one additional labor hour per turbocharger if the turbochargers need the 1255375 Bolts replaced with 1473737 Head Bolts.
Parts Disposition
Return all turbo groups and cartidges removed from Parts Stock to:
Caterpillar, Inc.
Attn: Reference PS4049
501 Cardinal Drive
Corinth, MS 38834
Handle all other parts in accordance with your Warranty Bulletin on warranty parts handling.
Attach.(1-Rework Procedure)Rework Procedure
1. Drain the engine coolant.2. Remove both high pressure turbos. Remove both intake pipes and adapters on top of the aftercooler housings within the 9Y8914 Air Lines Group.3. Examine the type of bolt holding the cast iron compressor housing to the bearing housing on each 0R7186 Turbo. If the bolts are 1255375 Bolts, shown in Illustration 1, remove them and install eight 1473737 Bolts as shown in Illustration 2. The 1473737 Bolts have a ground head to increase clearance. If the bolts are already the 1473737, as shown in Illustration 2, no changes are needed.4. Install four 6V3917 O-Rings and two new style 1433629 O-Rings on each new 1417140 Pipe.5. Lubricate the o-rings with any oil based lubricant. Before installing any iron on the engine, use a dead blow hammer to install the pipe with o-rings into a cast iron adapter and the other end of the pipe into the cast iron compressor housing of the turbocharger. Do this for both sets of pipes, adapters, and high pressure turbos.6. Install the two turbo/pipe/adapter assemblies on the engine.7. Even with the above 1473737 Ground Head Bolts installed, additional clearance is needed to install the turbo water and oil line adapters. The additional clearance comes from modifying the existing turbo water and oil line adapters or by installing the new parts as below:- turbo water inlet adapters--rework the existing 1070744 adapters as per the information in Illustration 3, or install two new 1417166 Adapters.- turbo oil drain adapters--rework the existing 9y5814 adapters as per the information in Illustration 4, or install two new 1417167 Adapters.- turbo oil inlet adapters--rework the existing 6I0804 Adapters as per the information in Illustration 5, or install two new 1417165 Adapters.- turbo water outlet adapters--rework the existing 7E7518 Adapters as per the information in Illustration 6 or install two new 1417164 Adapters.8. Refill coolant. Start engine and check for leaks.
Illustration 1
Illustration 2
Illustration 3
Illustration 4
Illustration 5
Illustration 6