Series 60 – LOW OIL PRESSURE – 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:
1.2.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.
[a] If no stress cracks, twisted screen tube, or cracked flange gaskets are found, check
crankshaft main bearings; refer to section 2.11.
[b] If stress cracks, twisted screen tube, or cracked flange gaskets are found, refer to section 2.10.1.

2.10.1
Pickup Screen Tube and Screen Assembly Repair
Perform the following steps to repair the pickup screen tube and screen assembly:
1. Replace all damaged components identified during inspection and install; refer to
appropriate service manual, lubrication system chapter.
2. Verify repairs to pickup screen tube and screen assembly; refer to section 2.10.1.1.

2.10.1.1
Test Engine with Repaired Pickup Screen Tube and Screen Assembly
Perform the following steps to determine if repaired pickup screen resolved low oil pressure:
1. Connect to DDDL 7.0.
2. Start and run engine speed at 1800 rpm.
3. Visually examine DDDL 7.0 for oil pressure reading.
[a] If DDDL 7.0 indicates 241 kPa (35 psi), or more at 1800 rpm, shut down the engine
and disconnect DDDL 7.0. No further troubleshooting is required.
[b] If DDDL 7.0 indicates less than 241 kPa (35 psi) at 1800 rpm, shut down the engine
and disconnect DDDL 7.0, check crankshaft main bearings; refer to section 2.11.

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