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 655 of 856

INSPECTION-ACCEPTANCE AND REJECTION CRITERIA - Continued
2.
Examine gear teeth for wear, scoring, and pitting.
3.
Measure gear bearing, hub, and thrust washers for repair standards (Table 1).
END OF TASK
INSTALLATION
Table 1.
Repair Standards for Drive Gear Assemblies.
POINT OF MEASUREMENT
SIZE OF NEW PARTS
WEAR LIMIT
ID of Gear Bearing
1.1205–1.1220 in.
(28.461–28.499 mm)
1.1230 in. (28.524 mm)
OD of Hub
1.1205–1.1220 in.
(28.461–28.499 mm)
1.1200 in. (28.448 mm)
Bearing to Hub Clearance
0.0015–0.0030 in.
(0.038–0.076 mm)
0.0070 in. (0.178mm)
Thrust Washer Thickness
0.1580–0.1600 in.
(4.013–4.064 mm)
0.156 in. (3.962 mm)
Gear End Play
0.0040–0.0140 in.
(0.102–0.356 mm)
—
1.
Lubricate drive gear bearing, thrust washers, and hub with engine oil.
NOTE
Oil grooves on thrust washers must face toward gear.
2.
Place inner thrust washer (Figure 1, Item 2) on small diameter of hub (Figure 1, Item 3). Slide drive gear
(Figure 1, Item 4) and outer thrust washer (Figure 1, Item 2) over larger diameter of hub.
3.
Install small diameter of hub (Figure 1, Item 3) in counterbore in end plate with flat on outside diameter of
hub engaging flat in hole. Mesh teeth on drive gear with teeth on camshaft gear (Figure 1, Item 1).
4.
Install flat washer (Figure 1, Item 5) and new self-locking bolt (Figure 1, Item 6) on hub (Figure 1, Item 3)
and into cylinder block. Torque bolt to 71–75 lb-ft (96–102 N·m).
5.
Using thickness gage, measure clearance between outer thrust washer (Figure 1, Item 2) and gear
(Figure 1, Item 4). Clearance should be 0.005 to 0.018 inch (0.127 mm to 0.457 mm) with new parts and a
maximum of 0.022 inch (0.559 mm) with used parts.
6.
Using dial indicator with magnetic base, measure backlash between drive gear (Figure 1, Item 4) and
mating camshaft gear (Figure 1, Item 1). Backlash should be 0.003 to 0.005 inch (0.076 mm to 0.127 mm)
with new gears and a maximum of 0.007 inch (0.178 mm) with used gears.
7.
Install adapter (Figure 1, Item 7) and two new self-locking bolts (Figure 1, Item 8) on drive gear
(Figure 1, Item 4). Torque bolts to 7–9 lb-ft (10–12 N·m).
END OF TASK
TM 9-2815-205-24
0091
0091-3


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