REPLACEMENT - TM-55-1905-223-24-50296

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Table 3-5. Oil Pump Shaft Limits - Inch (mm)

TM-55-1905-223-24-5 Bowthruster Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

Replace Camshaft Group

TM 55-1905-223-24-5

Apply lubricating oil to the inside diameter of the idler gear (25). Install the idler gear onto the idler

shaft (26).

Apply clean lubricating oil to the gears, bushings, and shafts.

Install plunger (6), spring (5), plug (4), cap (3), washer (2), and capscrew (1) into the pump body (31).

Tighten the capscrew (1) to 30 to 35 ft-lb torque.

Install the cover (16) with capscrew (17) and gasket (15) to the pump cover (14). Install cover (14) with

capscrews (21). Hit the cover lightly with a rubber hammer to push the cover onto the dowels. Install

the capscrews (17) and lockwashers so that the cover is held to the body. Tighten the capscrews to 30-

35 ft-lb torque. Turn the gears to make sure they move freely in the pump.

REPLACEMENT

Install gasket (32) onto the mounting flange of the oil pump.

Position the pump onto the mounting hole in the cylinder block. Make sure that the gear teeth of the

pump align with the camshaft gear teeth.

Install the capscrews (19, 20) and lockwashers (18) to fasten the pump to the cylinder block. Tighten

the capscrews to 35 to 45 ft-lb torque.

Connect the oil inlet and outlet lines to the pump.

Operate the engine (TM 55-1905-223-10) and check for leaks and for proper oil pressure at operating

temperature.

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