TM-9-2815-225-34-P

ENGINE, DIESEL: 6 CYLINDER IN-LINE TURBOCHARGED, CUMMINS MODEL NTC-400

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

JULY 2005

TM-9-2815-225-34-P - Page 412 of 736

TM 9-2815-225-34&P

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ENGINE ACCESSORIES INSTALLATION (Contd)

VIBRATION DAMPER AND CRANKSHAFT PULLEY

CAUTION

To avoid engine damage, ensure mounting surfaces of vibration

damper and crankshaft pulley are clean and dry. Do not get

any lubricating oil on these surfaces.

1.

Install two vibration damper guide pins (5) on two opposite holes in face of crankshaft (6).

2.

Install crankshaft pulley (4) and vibration damper (3) on two guide pins (5) and push into

crankshaft (6) until seated.

3.

Apply a coat of clean lubricating oil to threads of six screws (1) and washers (2).

4.

Install four screws (1) and washers (2) on vibration damper (3), crankshaft pulley (4), and

crankshaft (6).

5.

Install remaining two screws (1) and washers (2) on vibration damper (3), crankshaft pulley (4),

and crankshaft (6). Tighten screws 190 lb-ft (258 N

•

m).

NOTE

Total indicator reading must not exceed 0.004 in. (0.102 mm)

per 1.0 in. (25.4 mm) of vibration damper diameter. Remove

and discard vibration damper if not within limits.

6.

Using dial indicator gauge, measure movement on vibration damper (3) circumference by rotating

crankshaft (6).

NOTE

Crankshaft must be kept at front or rear limit of thrust

clearance while measuring movement of vibration damper face.

Total indicator reading must not exceed 0.007 in. (0.178 mm)

per 1.0 in. (25.4 mm) of the vibration damper radius. Remove

and discard vibration damper if not within limits.

7.

Using dial indicator gauge, measure movement of vibration damper (3) face by rotating

crankshaft (6).

Figure 4. Vibration Damper and Crankshaft Pulley Installation.

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2

3

4

5

6

END OF WORK PACKAGE