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

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Air from blower or air box

TM-55-1905-219-14-3 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

Poor circulation

TM 11-1905-219-14-3

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

(Cont.).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. Lubricating oil (Cont.)

Step 2.

Check lubricating oil viscosity.

Check for recommended grade and viscosity of oil.

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 sea ring and fuel pipe connections.

Leaks at these points will cause lubricating oil dilution. Refer to paragraph

3-147.

2. 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.

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