TM-9-2815-205-24

6V53/6V53T ENGINES, DIESEL WITH CONTAINERS; MODEL 5063-5299, MODEL 5063-5392, MODEL 5063-5393 AND MODEL 5063-539L

TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE

FEBRUARY 2013

TM-9-2815-205-24 - Page 783 of 856

WARNING

Avoid contact with hot manifolds, pulleys, and other moving parts. Wear proper ear

protection when running engine. Failure to comply may result in injury to personnel.

CAUTION

If crankcase pressure is excessively high, this pressure may exceed the capacity of u-tube

manometer. To prevent blowing liquid out of u-tube manometer, discontinue test if liquid

level approaches limits of u-tube manometer scale by closing u-tube

manometer connector.

8.

Start engine and operate at 2500 rpm, FULL LOAD. Slowly open u-tube manometer connector

(Figure 11, Item 36), connected to nonmetallic tubing (Figure 11, Item 38), while carefully observing liquid

level in u-tube manometer.

NOTE

A u-tube manometer measurement is the sum of the displacements from zero of

the two columns of liquid. The value expressed is in inches of water.

For model 5063-5299, crankcase pressure must not exceed 0.9 inch of water at

2500 rpm, FULL LOAD.

For all except model 5063-5299, crankcase pressure must not exceed 3.3 inches

of water at 2800 rpm, FULL LOAD.

9.

When u-tube manometer connector (Figure 11, Item 36) has been opened one full turn, read crankcase

pressure on u-tube manometer scale.

10.

Stop engine by moving governor stop lever (Figure 10, Item 34) to NO FUEL position.

11.

Disconnect hose (Figure 11, Item 38) and remove coupling half (Figure 11, Item 37).

12.

Install torque wrench adapter, oil level gage tube, and oil level gage to oil pan (WP 0014) , (WP 0015), or

(WP 0016).

35

40

39

38

37

36

MAINT_432

Figure 11.

Crankcase Pressure Check.

TM 9-2815-205-24

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