GEAR 3W5438 - Caterpillar

Introduction
Do not perform any procedure in this Special Instruction until you read this information and you understand this information.Safety Section
Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool.
Diesel engine exhaust contains products of combustion which may cause personal injury.Always start and operate the engine in a well ventilated area, and, if in an enclosed area, vent the exhaust to the outside.
Use caution when you inspect heat shields. Ensure that the engine is not running and ensure that the engine components are cool before you touch heat shields.
Required Parts
Table 1
Quantity     New Part Number     Description     Engine Used On    
2     379-8578     Shield As     C15    
2     379-8579     Shield As     C13    
2     380-5855     Seal As     C15    
2     380-5856     Seal As     C13    Installation Procedure
The current shield and packing have been replaced with improved sealing material and shields.
Remove the current shield and packing material from the exhaust manifold and discard.
Illustration 1 g02943121
Place the seal (1) into one half of the clamshell (2) .
Illustration 2 g02943136
Fit the lower portion in place with the "L" (3) of the seal in contact with the center manifold section (4) .
Illustration 3 g02943176
Use tape (5) to hold the seal in place for installation.
Illustration 4 g02943179
Place the upper clamshell (6) half in place.
Illustration 5 g02943182
Shield and worm gear clamp for C13
Put the clamp (7) in place and tighten until both halves of the clamshell contact.
Torque the Worm Gear Clamp for the C13 to 10 N m (7 lb ft).
Torque the T-Bolt Clamp for the C15 to 16 N m (12 lb ft).
Illustration 6 g02943185
Shield and T-Bolt clamp for C15
Be sure that no seal material is visible after assembly (8) .