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

  TM-9-2815-205-24 - Page 568 of 856

INSPECTION-ACCEPTANCE AND REJECTION CRITERIA - Continued
8.
Plunger inspection procedures:
Check plunger (Figure 7, Item 2) for erosion, corrosion or varnish, scoring, scratching or wear, and
chips along edge of helix.
2
2
2
ADVANCED STAGE OF
EROSION CAUSED BY
FOREIGN MATERIAL
IN FUEL DUE TO
IMPROPER FILTRATION.
CHIPPED AT
LOWER HELIX.
THIS CONDITION CAN BE
CAUSED BY EITHER LACK
OF FUEL AT HIGH SPEEDS
OR WATER IN FUEL.
MAINT_281
Figure 7.
Injector Plunger Check.
9.
Check valve and check valve cage inspection procedures:
a.
Inspect for cracks and scratches on lapped surfaces. Also inspect for corrosion, varnish, and wear.
b.
Measure thickness of check valve and check valve cage. Minimum cage thickness is 0.163 inch
(4.14 mm) and minimum check valve thickness is 0.022 inch (0.56 mm). Replace if necessary.
10.
Valve spring inspection procedures:
Check spring for wear on coil ends, broken coil ends, and notches under coil ends. Check for
corrosion, nicks, and cavitation erosion on inside at approximately 1-1/2 coils from end. Replace if
necessary.
11.
Spring seat inspection procedures:
Check surfaces for wear as shown by visible chamfer. Replace if necessary.
12.
Spring cage inspection procedures:
a.
Inspect for cracks, corrosion or varnish, and scratches on lapped sealing surfaces. Inspect spring seat
surface and needle valve seating surface for wear.
b.
Measure thickness of spring cage. Minimum thickness is 0.602 inch (15.29 mm). Replace if necessary.
13.
Spray tip:
a.
Check for cracks, enlarged spray holes, corrosion on outside diameter taper, and oxide scale on spray
hole end. Check nut to tip sealing surface and lapped sealing surface for scratches. Do not use spray
tip if there are scale, cracks, or enlarged spray holes.
b.
Measure thickness of spray tip (Figure 8, Item 5) shoulder. Minimum thickness is 0.199 inch
(5.05 mm).
TM 9-2815-205-24
0084
0084-8


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