Information plunger
BOSCH
9 413 611 812
9413611812
ZEXEL
134153-6900
1341536900
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Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
There have been some isolated instances of issues with the Diesel Particulate Filter (DPF) on certain C3.4B engines.Solution
Caterpillar is aware of this problem. Follow the procedure that is detailed below.
Table 1
Required Tools
Tool Part Number Part Description Qty
A 233-7191 Hose Cleaner Gp 1
Obtain a fuel sample from the engine.
Obtain a lubricating oil sample from the engine.
Attach a copy of the full service history of the engine to the Service Information Systems (SIMSi) report. Include the change history of the following components:
Engine oil
Engine oil filter
Engine fuel filter
Crankcase breather filter
Ensure that the breather element is clean and free from wear or damage. Replace the breather element. Refer to Operation and Maintenance Manual, Engine Crankcase Breather Element - Replace for the correct procedure. Ensure that the inlet hose is clean and free from restriction. If the inlet hose requires replacing, refer to Disassembly and Assembly, Crankcase Breather - Install for the correct procedure.
Determine the service hours of the engine air cleaner element. Ensure that the engine air cleaner element is clean and free from wear, damage, or restriction. If necessary, replace the engine air cleaner element. Refer to Operation and Maintenance Manual, Engine Air Cleaner Element (Single Element) - Inspect/Clean/Replace for the correct procedure. Ensure that the hose assemblies are clean and free from restriction and dust.
Inspect the inlet and outlet hoses of the turbocharger for the presence of excessive lubricating oil. If necessary, take photographs inside both inlet and outlet hoses. If necessary, take photographs inside the compressor housing for the inlet and outlet. If excessive lubricating oil is found, replace the turbocharger. Refer to Disassembly and Assembly, Turbocharger
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
There have been some isolated instances of issues with the Diesel Particulate Filter (DPF) on certain C3.4B engines.Solution
Caterpillar is aware of this problem. Follow the procedure that is detailed below.
Table 1
Required Tools
Tool Part Number Part Description Qty
A 233-7191 Hose Cleaner Gp 1
Obtain a fuel sample from the engine.
Obtain a lubricating oil sample from the engine.
Attach a copy of the full service history of the engine to the Service Information Systems (SIMSi) report. Include the change history of the following components:
Engine oil
Engine oil filter
Engine fuel filter
Crankcase breather filter
Ensure that the breather element is clean and free from wear or damage. Replace the breather element. Refer to Operation and Maintenance Manual, Engine Crankcase Breather Element - Replace for the correct procedure. Ensure that the inlet hose is clean and free from restriction. If the inlet hose requires replacing, refer to Disassembly and Assembly, Crankcase Breather - Install for the correct procedure.
Determine the service hours of the engine air cleaner element. Ensure that the engine air cleaner element is clean and free from wear, damage, or restriction. If necessary, replace the engine air cleaner element. Refer to Operation and Maintenance Manual, Engine Air Cleaner Element (Single Element) - Inspect/Clean/Replace for the correct procedure. Ensure that the hose assemblies are clean and free from restriction and dust.
Inspect the inlet and outlet hoses of the turbocharger for the presence of excessive lubricating oil. If necessary, take photographs inside both inlet and outlet hoses. If necessary, take photographs inside the compressor housing for the inlet and outlet. If excessive lubricating oil is found, replace the turbocharger. Refer to Disassembly and Assembly, Turbocharger