SEAL-RING 9W8877 - Caterpillar

Install the insulation.
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Insert the cotter pins in the six latches that hold the insulation in place.Installation Of The Turbocharger On The Engine
Use a suitable lifting device in order to place the turbocharger into position on the engine.Note: When you are positioning the turbocharger, ensure that the turbocharger remains level. Ensure that the O-ring seals for the oil system are not trapped.
Install the two main bolts in the mounting foot. Tighten the bolts to a torque of 420 N m (310 lb ft). Use the 178-0193 Torque Adapter .
Install the four main mounting bolts with the 178-0196 Torque Adapter .
Connect the turbine inlet connections.
Connect the speed sensor connection.
Connect the turbocharger wash group, if equipped.
Reconnect the instrumentation.
Connect the oil system if the oil is supplied externally.Removal And Installation Of The Turbocharger Cartridge
Removal Of The Turbocharger Cartridge
Note: Before you remove the cartridge, the gas outlet housing must be supported. Severe damage will occur to the housing and the turbine if the housing is not secured.
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Remove the insulation from the turbocharger.
Disconnect the speed sensor connection.
Disconnect the turbocharger wash group, if necessary.
Remove the alternate oil drain line, if necessary.
Disconnect the alternate oil feed, if necessary.
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Attach a suitable lifting device to the bearing housing.
Remove the three safety bolts that connect the bearing housing and the gas outlet housing.
Remove the nuts and washers that connect the compressor housing and the gas outlet housing.
Take the weight of the turbocharger with the lifting device.
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Remove the four mounting bolts.Note: Ensure that the cartridge remains level. Damage may occur if the cartridge does not remain level.Note: Jacking screws may be used in order to remove the cartridge from the gas outlet housing.
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Remove the cartridge from the gas outlet housing.Note: The nozzle may be removed from the compressor end.Removing The Nozzle From The Compressor End
Remove two capscrews and lock washers from the shroud assembly.
Remove the four remaining capscrews and lock washers from the shroud assembly. Remove the shroud assembly.
Remove the six capscrews and lock washers that secure the nozzle.
The nozzle can now be removed, cleaned, and inspected for damage.Installation Of The Nozzle From The Compressor End
Place the nozzle into the gas inlet housing.
Place the clamping ring onto the nozzle. Align the six holes.
Install the six capscrews and lock washers in the clamping ring. Tighten the screws to a torque of 67 N m (49.5 lb ft).Note: Use 5P-3931 Anti-Seize Compound on the threads.
Fit the shroud to the gas outlet housing.
Install the six capscrews and lock washers in the shroud. Tighten the screws to a torque of 30 N m (22 lb ft).Installation Of The Turbocharger Cartridge
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Note: The following paragraph relates to the front turbocharger only. If the cartridge is being assembled to the gas outlet housing on the engine, be sure to properly position the O-Ring seal. This seal is placed on the oil drain on the turbocharger support. (Later designs eliminate the O-Ring seal and these engines use a tube that is inserted into the turbocharger support.) When you replace a cartridge,