HOSE ASSEM. (18 in. long) 8D6523 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Loctite Nickel Anti-Seize Lubricant - Start By:
Remove the inlet module (catalyst).
Connect the engine to Caterpillar Electronic Technician (Cat ET) before the DPF is removed from the engine. Once the engine is connected to Cat ET, then perform an ash service test. This test is a manual regeneration. Allow the DPF to cool before proceeding.
Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool.
Wear goggles, gloves, protective clothing, and a National Institute for Occupational Safety and Health (NIOSH) approved P95 or N95 half-face respirator when handling a used Diesel Particulate Filter or Catalytic Converter Muffler. Failure to do so could result in personal injury.
Illustration 1 g03389606
Put Identification Mark (X) on both sides of clamp (1) for installation purposes.
Put Identification Mark (W) on the diesel particulate filter for installation purposes. Identification Mark (W) is showing the flow of exhaust gases through the diesel particulate filter.
Loosen clamp (1) and disconnect strap (2) from diesel particulate filter (3).
Use two people to remove diesel particulate filter (3). The weight of diesel particulate filter (3) is approximately 27 kg (60 lb).
Discard clamp (1). Installation Procedure
Note: When installing a new diesel particulate filter or a cleaned diesel particulate filter, an Ash Model reset must be performed. Refer to Special Instruction, REHS8180, "Aftertreatment Filter Maintenance on Tier 4 Final Products Equipped with a Diesel Particulate Filter (DPF), Diesel Oxidation Catalyst (DOC), and a Selective Catalyst Reduction (SCR) Filter" for the correct procedure.
Install diesel particulate filter (3) in the reverse order of removal.
Illustration 2 g03389555
Facing the Inlet Module Assembly.
Install clamp (1) to Dimension (Y). Dimension (Y) is 30° 5°. Tighten clamps (1) to a torque of 60 5 N m (44 4 lb ft).
Illustration 3 g03381770
Typical Example
Note: Do not use power tools in order to torque strap (2).
Apply Tooling (A) to the threads of strap (2) along Distance (Z). Distance (Z) is 25 mm (1.0 inch) above the trunnion. Tighten strap (2) to a torque of 15 + 3 - 0 N m (133 + 27 - 0 lb in).