OIL TOO HOT

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EXCESSIVE VIBRATION IN PROPELLER SHAFT.

TM-55-1905-217-12 Landing Craft Mechanized; Steel; DED; Overait Length 74 Feet Mod 1 Marl VIII Navy Design LCM-8 Hull Numbers 8500 and 8580 thru 8618 Manual

Figure 3-5. Primary fuel line strainers, hull numbers 8500 thru 8519

TM 55-1905-217-12

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

4. OIL TOO HOT.

Step 1. Check pump discharge valves are set properly. (Hulls 8500 thru 8519).

One discharge valve should be open and the other dosed.

RAMP HOIST HYDRAULIC SYSTEIM

1. CONTROL VALVE LEVER MOVES BUT WINCH DOES NOT TURN WHEN CABLE IS FREE TO MOVE.

Step 1. Check power takeoff (PTO) is engaged at pumps.

Engage PTO.

Step 2. Check ball valve is open

Close ball valve

2. RAMP CONTINUES TO LOWER WITH CONTROL VALVE IN NEUTRAL.

Step 1. Check ball valve is open.

Close ball valve

3. UNUSUALLY SLOW OPERATION.

Step 1. Check if ball valve is open.

Close ball valve.

Step 2. Check engines are up to speed.

Increase engine speed.

Step 3. Check only one pump is engaged.

Engage both pump

4. TANK OVERFLOWING.

Step 1. Check for aeration of oil.

Stop system and allow air to separate from oil.

BILGE PUMP SYSTEM

1. LEAK AT PACKING GLAND.

Step 1. Check packing gland is too loose or needs repacked.

Tighten or replace the gland

2. PUMP FAILS TO DELIVER WATER.

Step 1. Check suction valve is closed

Open suction valves

Step 2. Check discharge valve is closed.

Open discharge valve.

Step 3. Check whether prime is lost.

Open priming line valves.

Step 4. Check for clogged strainer

Clean strainer

Step 5. Check that clutch is engaged (Hull Nos. 8540 thru 8560 and 8580 thru 8618).

Engage clutch.

8. PUMP OUTPUT IS LOW.

Step 1. Check if suction valve is partially closed.

Open valve.

SECTION IV. MAINTENANCE PROCEDURES

3-7. General

3-9. Primary Fuel Line Strainers (Mounted on Aft

The maintenance procedures contained in this section

Bulkhead of Engine Room, Hull Numbers 8540 thru 8560

are the responsibility of the operator/ crew.

and 8580 thru 8618). Refer to figure 3-6 and service the

strainers every eight hours.

3-8. Fuel Line Strainers Mounted on Battery Support,

3-10. Engine Mounted Fuel Strainer and Fuel Filters

Used On Hull Numbers 8;500 thru 8519)

and Crankcase Breather Screens Dual fuel strainers

Refer to figure 3-5 and service the strainers every 8

hours.

(suction) are mounted aft on each propulsion unit. Dual

fuel filters (pressure) are mounted on the side of each

engine. Refer to

3-10