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 545 of 856

REPAIR OR REPLACEMENT - Continued

NOTE

Exhaust valve seats are prefinished. Check for concentricity after installation. Grind valve

seats only if runout exceeds 0.002 inch (0.05 mm).

5.

Valve seat grinding procedures are as follows:

Using valve seat grinder and valve seat grinder adapter kit, grind valve seats as follows:

CAUTION

Do not permit grinding wheel to contact cylinder head when grinding valve seat. If

valve seat is ground until grinding wheel contacts cylinder head, then install new

valve seat.

(1)

Apply 31 degree grinding wheel on valve seat.

(2)

Grind throat of valve seat using 60 degree grinding wheel (Figure 12).

MAINT_259

Figure 12.

Cylinder Head Valve Seat Grinding.

TM 9-2815-205-24

0083

0083-15