Poor circulation

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Table 3-65. Anchor Winch Engine - Low Oil Pressure - Troubleshooting

TM-55-1905-220-14-3 Landing Craft Unit LCU 1671-1679 (1905-01-009-1056) Manual

Poor circulation (Cont)

TM 55-1905-220-14-3

Table 3-65. Anchor Winch Engine - Low Oil Pressure - Troubleshooting.

(Cont).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

LUBRICATING OIL GRADES

DESCRIPTION

SPECIFICATION

OES (Sub Zero)

MIL-L-10295

OE/HDO - 10

MIL-L-2104

OE/HDO - 20

MIL-L-2104

OE/HDO - 30

MIL-L-2104

Check for fuel leaks at the injector nut seal ring and fuel pipe connections. Leaks at

these points will cause lubricating oil dilution. Refer to paragraph 3-147.

Poor circulation.

Step 1.

Check cooler for clogging.

A plugged oil cooler is indicated by excessively high lubricating oil temperature.

Remove and clean the oil cooler core. Refer to paragraph 3-149.

Step 2.

Check for cooler by-pass valve not functioning properly.

Remove the by-pass valve and clean the valve and valve seat and inspect the valve

spring. Replace defective parts. Refer to paragraph 3-167.

3-200