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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 CLBT 750 (Transmission)
LUBRICANT: MIL-L-2104
Fe
Ag
Al
Cr
Cu
Si
Sn
Ni
Pb
Mo
Mg
Normal Range
0-106
0-11
0-19
0-3
0-198
0-58
0-6
0-5
0-19
107-
199-
Marginal Range
12-14
20-24
4
59-72
7-8
6
20-24
131
244
245-
132-
73-89
9-10
7-8
25-30
15-17
25-29
5
High Range
304
163
Abnormal
164+
18+
30+
6+
305+
90+
11+
9+
31+
Abnormal Trend
(PPM Increase
10
2
2
2
18
4
2
2
2
in 10 hrs)
TECHNICAL INFORMATION
Silicon additives may be used as antifoaming agents in the lubricating oil, thus new oil normally gives a reading of 3-7
PPM silicon
Aluminum particles are commonly found in the transmission pan. Aluminum and cast iron parts have significant amounts of
silicon in their composition.
Transmission is liquid-cooled; therefore, ethylene glycol may be present in the oil. If significant amounts of ethylene glycol
are found, it is suggested that appropriate action be taken because the clutches and seals may be affected accordingly.
APPLICABLE END ITEMS
M911
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