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Introduction
The following special instructions must be used to test for a crack in the Diesel Particulate Filter (DPF). Do not perform any procedure that is outlined in this Special Instruction until you have read and understand the information that is contained in this document.Required Tools
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     380-5200     Tool Kit     1    
B     366-7782     Attenuator     1    Testing Procedure
Perform a "Manual Diesel Particulate Filter Regeneration" using the electronic service tool.
After the manual DPF regeneration is complete, operate the engine at 1800 rpm for a MINIMUM of 20 minutes to stabilize the DPF temperatures.Note: The engine must maintain a steady speed for the entire duration of the test.
Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool.
Illustration 1 g02597531
Typical example (1) DPF Outlet Cap (2) Filter Paper (3) Hose Assembly (4) Air Pump
Illustration 2 g03655197
Typical example
Stop the engine. Disconnect harness assembly from both soot antennae. Remove outlet soot antenna (5). Refer to