TM-9-2520-254-34
TRANSMISSION, AUTOMATIC, ALLISON, MODEL TX100-1
TECHNICAL MAUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1971
TM-9-2520-254-34 - Page 50 of 126
Table 4-1. Troubleshoottng- Continue d
Malfunction
lo. Low main oil pressure,
1}1, ‘1’ransmissit)n I[psllifth t{) a range
Iligller
tlliill
that
indicated
at
ma IIIIal shift t,t)ntr~)l.
1°. Shifting
r{)ll~l)
20. ‘1’rallsmissit}ll
does
Ilot
drive
\el)i(,le.
?1. stall speed too” lo\\.
22. Stall spee(l t{){) higl).
if
1).
(..
d,
(,.
/.
q,
;1
/).
<..
(/
(,.
/.
,<’.
ii
/)
;/
/)
c,
([,
‘i.
/),
(.
(1
(,.
Probable Cause
oil 1,.vel I,JM
oil filter {,l{jggt,d
Internal Ieakagc
Maitj
l~resstire
regtilator
+al>e
sti(,kin~r in bore,
Mai]l
pressllre
reglllatf)r
\al\e
s[)ring t)rokcn or weak.
l’rimn)er \alve ~ti(,king in t)ore.
Front oil puml) failed or worn.
(;of)ier {logge(l internally
(l,)t)lcroil lines kinked or clt)gged.
lJ,)w oil Icvel
Hi~h oil lewel
‘1’ransmissi{)n {l[ltvl) slippage.
“1’,,rque tonvertcr stator lnckecf up
(does not freewheel).
Water side of oil cooler clogged.
II)l]ibitor \alve sti(,king in ripen
I){hition.
ll]l)ibit~)r
\al\e
spring
weak
or
br{)~ell.
‘1’llrottle \alve linkti~e improperly
atljllsttvl.
‘1’rimmer wal\e sticking in bore.
FII)I\ \al\e sticking in bore.
‘1’l)rottle regl[lat,)r \al\e sti(king
it] I){)re
Sl)ift
linkage
(Iisconnectecf
or
I)rokcl).
llai]l I)r(,sstlre if)\\
I]]tertlal f:lilllr(>
oil 1(.\t,l it)\\
Vehicle drive components locked
Ill) l~r f~iile(l.
k:]l~illt, tl~,t I)r(dll{,it]g
ftlll
p{)\\er.
(:lllt{l]
.Iil)l)i]]g
Corrective ActIon
:[. Cl)c.(,k,)il le\elallcl:id(l oil (para 1 -
6) .
/), Rel)la(w filter element (para 1-6).
.
~. ()\erllalll transmission (para 5- 1
tllrt)ugh 5-63).
{l.
(}terllaui
trebuildl
or
replace
(,ontrt)l \ai\e assembl~ (para 5-5 2
tl)ro[lgll 5-56).
f,.
()\erl)aul
(rebuildl
or
replace
{v)ntrol \al\c assembly (para 5-52
through
5-56) .
f. oterl]aul
(rebuilcll
or
replace
tt)ntrol \al\e assembly (para 5-52
tl)r~)ugh 5-56).
()}erl)aul transmission (para 5- 1
,<’.
through 5-6) .
:/.
Clean
cooler.
Refer
to
\ehicle
technical manuals.
l). Rrf)la{et)r(lean oil lines. Referto
\ehicle technical manuals.
(. Cl)e(k oil level and add oil (para 1 -
6) .
~1. Cl)eck oil level and drain to proper
le\el
(para
1-6).
/,.
Refer to items 12 and 13 above.
J.
()~erhaul
transmission (para 5- 1
through 5-63) .
g.
clean \vater
side of oil cooler.
Refer t,) \ehicle technical
manuals.
a. ()\erl]aul
(rebuiidl
or
replace
(,ontrol \al\e assembl} (para 5-5 2
tlln)ugll 5-56) .
l).
()\erl]aul
(rebuildl
nr
replace
control \alve assembly (para 5-52
through 5-56) .
ii. Adjust linkage (para 5-63) .
/).
(herhaul
(rebuild)
or
replace
control \alve assembly (para 5-52
through 5-56) .
,. ()\erl)aul (rebuild) or replace
t,t)ntro] valve assembly (para 5-5 2
tllrt)tlgil 5-56).
(1.
()\erl)aul
(rebuild)
or
replace
~,{)l)trt)l \al\e assembly (para 5-5 2
tl]roilgh
5-56) .
;I.
l{epair
or
replace
and
adjust
linkage (para 5-63) .
/).
Refer to item 16 above.
{. ()\erl}aul transmission (para 5- 1
tl]r[)ttgl) 5-63) .
(/. Check oil le\el and add oil
(par a
1-6) .
,.
l{ef{>r t,)\el]icle tecl)r)ical manuals.
Cllcck
engine
technical
manual.
‘1’IIne engine.
(;lleck main pressure
(para 5-61 )
4- 4
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