Section 2.11
Defective Pickup Screen Tube and Screen Assembly
To determine if a defective pickup screen tube or screen assembly is causing low oil pressure, perform the following steps:
- Remove pickup screen tube and screen assembly; refer to appropriate service manual, lubrication system chapter.
- Visually inspect pickup screen tube and screen assembly; refer to appropriate service manual, lubrication system chapter.
- If no stress cracks, twisted screen tube, or cracked flange gaskets are found, check crankshaft main bearings; refer to "2.12 Defective Crankshaft Main Bearing Shells" .
- If stress cracks, twisted screen tube, or cracked flange gaskets are found, refer to "2.11.1 Pickup Screen Tube and Screen Assembly Repair" .
Section 2.11.1
Pickup Screen Tube and Screen Assembly Repair
Perform the following steps to repair the pickup screen tube and screen assembly:
- Replace all damaged components identified during inspection and install; refer to appropriate service manual, lubrication system chapter.
- Verify repairs to pickup screen tube and screen assembly; refer to "2.11.1.1 Test Engine with Repaired Pickup Screen Tube and Screen Assembly" .
Section 2.11.1.1
Test Engine with Repaired Pickup Screen Tube and Screen Assembly
Perform the following steps to determine if repaired relief valve resolved low oil pressure:
- Install the Diagnostic Data Reader to the vehicles Display Data Line Adaptor, see Figure "Typical Display Data Line Adaptor" ; refer to OEM guidelines.
- Start and run engine speed at 1800 rpm.
- Visually examine the DDR for oil pressure reading.
- If the DDR indicates 241 kPa (35 psi), or more at 1800 rpm, shut down the engine and disconnect the DDR. No further troubleshooting is required.
- If the DDR indicates less than 241 kPa (35 psi) at 1800 rpm, shut down the engine and disconnect the DDR, check crankshaft main bearings; refer to "2.12 Defective Crankshaft Main Bearing Shells" .
| Series 60 DDEC V Troubleshooting Guide - 6SE570 |
| Generated on 10-13-2008 |