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NAVAIR 17-15-50.4
TM 38-301-4
T.O. 33-1-37-4
CGTO 33-1-37-4
COMPONENT:
Detroit Diesel Allison XT1410-5A Transmission)
LUBRICANT: CAT-TDTO-TO4
Fe
Ag
Al
Cr
Cu
Si
Sn
Ni
Normal Range
0-266
0-49
0-18
0-7
0-659
0-19
0-32
0-6
Marginal Range
267-328
50-60
19-22
8-9
660-812
20-24
33-40
7
High Range
329-410
61-75
23-28
10-11
813-1014
25-29
41-50
8-9
Abnormal
411+
76+
29+
12+
1015+
30+
51+
10+
Abnormal Trend
(PPM Increase
82
15
5
3
203
6
10
3
in 10 hrs)
* - Value is low or unchanged from previous value listed for the same element..
Pb
Mo
Mg
Ti
Na
Zn
B
Normal Range
0-184
0-9
0-226
0
0-27
0-746
0-2
Marginal Range
185-226
10-11
227-279
*
28-33
747-918
3
High Range
227-283
12-14
280-348
1
34-42
919-1147
4
Abnormal
284+
15+
349+
2+
43+
1148+
5+
Abnormal Trend
(PPM Increase
56
4
69
1
8
229
2
in 10 hrs)
TECHNICAL INFORMATION
The XT1410-5A transmission does not use engine oil MIL-L-
2104; it uses Caterpillar Transmission/Drive Train oil meeting
Caterpillar specification TO-4 (Cat TDTO, TO-4). This oil is
specially formulated for transmissions and provides improved
control of friction with the clutch, steering and brake plates. The
most apparent benefit of using the Cat TDTO, TO-4 oil is the
improved steering response.
Increasing copper (Cu) usually indicates wear of clutch, steering
and brake plates. Rapid increases in Cu are normally experienced
during initial break-in of new clutch, steering and brake plates in
new or rebuilt transmissions and output reduction (final drive)
assemblies.
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